Battery steel ball hitting device

Abstract

The utility model discloses a battery steel ball hitting device which comprises a support, a feeding assembly, a three-axis module and a steel ball hitting mechanism, the three-axis module is fixed on the support, the feeding assembly is fixed above the three-axis module, and the steel ball hitting mechanism is arranged on the three-axis module to move. The steel ball beating mechanism comprises a steel ball guiding part, a steel ball feeding connector is formed in the outer side of the steel ball guiding part and communicates with the steel ball guiding part, a first spring supporting plate is arranged below the steel ball guiding part, a second spring supporting plate is arranged below the first spring supporting plate, and a vacuum helium return channel is formed between the first spring supporting plate and the second spring supporting plate. And a steel ball thimble is arranged in the steel ball guide part. A vacuum helium return channel is arranged below a steel ball guide part, the vacuum helium return channel is vacuumized and filled with helium, the safety of the steel ball and a battery liquid injection hole in the butt-joint feeding process is guaranteed, and the steel ball is accurately positioned through a steel ball outlet formed by a second spring supporting plate, so that it is guaranteed that the steel ball is aligned to the battery liquid injection hole.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a battery steel ball punching device. Background Art

[0002] In the production process of lithium batteries, after the batteries are filled with liquid, the liquid injection holes of the batteries can be sealed by punching steel balls. The existing steel ball punching process generally uses manual or semi-automatic methods to complete the work, with low efficiency; and there are sometimes deviations in the positions of the steel ball machines and the liquid injection holes during steel ball punching, and problems such as uneven sealing, over-sealing, and under-sealing are likely to occur during processing, which cannot ensure the consistency of processing, has poor stability, and a large amount of heat and gas will be released when the steel balls react with the active substances during processing, resulting in an increase in the internal pressure of the battery and posing a great potential safety hazard. Therefore, the present utility model provides a new technology to solve the existing technical problems. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the present utility model provides a battery steel ball punching device. By providing a vacuum helium return channel below the steel ball guiding part, and evacuating and refilling helium gas into the vacuum helium return channel and the battery liquid injection hole, the safety during the butt joint feeding of the steel ball and the battery liquid injection hole is ensured. The steel ball outlet formed by the second spring support plate accurately positions the steel balls to ensure that the steel balls are aligned with the battery liquid injection holes.

[0004] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0005] A battery steel ball punching device, characterized in that it includes a bracket, a feeding assembly, a three-axis module, and a steel ball punching mechanism. The three-axis module is fixed on the bracket, the feeding assembly is fixed above the three-axis module, the feeding assembly is used for conveying steel balls, and the steel ball punching mechanism is arranged on the three-axis module; the steel ball punching mechanism includes a steel ball ejector pin, an ejector pin driving device, and a steel ball guiding part. The steel ball guiding part is provided with a steel ball punching channel penetrating from top to bottom, a steel ball distribution channel and a vacuum helium return channel respectively communicated with the steel ball punching channel. The steel ball distribution channel is arranged on the upper side of the vacuum helium return channel;

[0006] A first elastic plate assembly is arranged below the steel ball guiding part. The first elastic plate assembly is arranged between the steel ball distribution channel and the vacuum helium return channel. The first elastic plate assembly includes a first spring support plate, and the first spring support plate forms a steel ball inlet inside the first elastic plate assembly. The width of the steel ball inlet is smaller than the diameter of the steel ball;

[0007] A second ball spring plate assembly is provided below the first ball spring plate assembly. The second ball spring plate assembly includes a second spring support plate which forms a ball outlet inside the second ball spring plate assembly. The width of the ball outlet is smaller than the diameter of the ball. The ball ejector pin is disposed within the ball guiding portion.

[0008] As a further improvement of the above technical solution, the first ball spring plate assembly includes a first ball spring plate seat and two first spring support plates. The two first spring support plates are horizontally disposed opposite to each other and form the ball inlet. The first spring support plate is telescopically embedded in the inner wall of the first ball spring plate seat through a first spring; the second ball spring plate assembly includes a second ball spring plate seat and two second spring support plates. The two second spring support plates are horizontally disposed opposite to each other and form the ball outlet. The second spring support plate is movably embedded in the inner wall of the second ball spring plate seat through a second spring.

[0009] As a further improvement of the above technical solution, a first inclined surface is provided on the upper surface of the first spring support plate. The first inclined surface is provided on the upper surface of the first spring support plate and forms the ball inlet; a second inclined surface is provided on the upper surface of the second spring support plate. The second inclined surface is provided on the upper surface of the second spring support plate and forms the ball outlet.

[0010] As a further improvement of the above technical solution, a ball feeding interface and a material distributing push block channel are provided on the side of the ball guiding portion. A material distributing push block is movably disposed within the material distributing push block channel. The material distributing push block channel and the ball feeding interface are provided on the same side. The material distributing push block has a pushing through hole for accommodating the ball;

[0011] A loading position and an unloading position are provided within the material distributing push block channel. The loading position communicates the material distributing push block channel with the ball feeding interface. The unloading position communicates the material distributing push block channel with the ball distributing channel. The material distributing push block is movably disposed within the material distributing push block channel. The ball feeding interface and the ball distributing channel respectively correspond to the loading position and the unloading position. The ball can enter the material distributing push block through the loading position and further enter the unloading position through the material distributing push block;

[0012] The ball punching mechanism includes a sliding table cylinder for driving the material distributing push block to move up and down within the material distributing push block channel so that the pushing through hole aligns with the loading position and the unloading position.

[0013] As another implementation improvement of the above technical solution, a material distribution connection channel and a steel ball feeding interface are provided on the side wall of the steel ball guiding part, and the material distribution connection channel and the steel ball feeding interface are arranged on the same side; a feeding position and a discharging position are provided in the material distribution connection channel, the feeding position communicates the material distribution connection channel with the steel ball feeding interface, the discharging position communicates the material distribution connection channel with the steel ball distribution channel, and steel balls can enter the material distribution connection channel through the feeding position, and then enter the discharging position through the material distribution connection channel and further enter the steel ball distribution channel through the discharging position.

[0014] As a further improvement of the above technical solution, the thimble driving device includes an electric cylinder, the electric cylinder is connected to the steel ball thimble, and a pressure sensor is arranged between the electric cylinder and the steel ball thimble.

[0015] As a further improvement of the above technical solution, the vacuum helium return channel is connected with a vacuum helium return device, and the vacuum helium return device is used for vacuum pumping and helium filling.

[0016] As a further improvement of the above technical solution, the three-axis module includes an x-axis linear module, a y-axis linear module and a z-axis linear module. The x-axis linear module is arranged on the y-axis linear module, the z-axis linear module is arranged on the x-axis linear module, and the steel ball punching mechanism is arranged on the z-axis linear module; a ccd device is arranged on the z-axis linear module.

[0017] As a further improvement of the above technical solution, the feeding assembly includes a vibrating disk hopper and a discharging assembly. A vibrating disk base is arranged at the bottom of the vibrating disk hopper; the vibrating disk hopper is connected to the discharging assembly through a linear vibrator feeder.

[0018] As a further improvement of the above technical solution, the discharging assembly includes a discharging plate and a cutting cylinder assembly. There is a discharging round hole on the discharging plate; the discharging assembly further includes an air pipe, and the air pipe is connected to the discharging round hole.

[0019] The beneficial effects of the present utility model are as follows: The present utility model performs precise positioning by setting a three-axis module in cooperation with a ccd device; the steel ball is clamped on the first spring support plate to seal the vacuum helium return channel, so that the vacuum helium return device can vacuum pump the vacuum helium return channel and the battery liquid injection hole, and the second spring support plate positions the steel ball and the liquid injection hole to ensure accurate feeding of the steel ball and improve efficiency; the vacuum helium return device fills helium into the vacuum helium return channel, and the helium environment ensures the safety when the steel ball is docked and fed into the battery liquid injection hole; the force of pressing the steel ball can be sensed through the pressure sensor, so that the force of pressing the steel ball can be adjusted, which is beneficial to improving the operation stability. Description of the Drawings

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is the assembly drawing of the present utility model;

[0022] Figure 2 is the schematic structural diagram of the three-axis module of the present utility model;

[0023] Figure 3 is the schematic structural diagram of the steel ball punching mechanism of the present utility model;

[0024] Figure 4 is the schematic sectional view of the steel ball punching mechanism of the present utility model;

[0025] Figure 5 is Figure 4 the enlarged schematic view at position A in

[0026] Figure 6 is the schematic structural diagram of the feeding component of the present utility model.

[0027] Explanation of reference numerals in the drawings: 1 - bracket; 2 - three-axis module; 21 - y-axis linear module; 22 - x-axis linear module; 23 - z-axis linear module; 24 - ccd device; 3 - feeding component; 31 - vibration disk base; 32 - vibration disk hopper; 33 - linear vibratory feeder; 34 - discharging component; 341 - discharging plate; 342 - cutting cylinder component; 4 - steel ball punching mechanism; 41 - steel ball guiding part; 410 - steel ball punching channel; 411 - first spring support plate; 4111 - first inclined surface; 4112 - first spring; 412 - slideway; 413 - loading position; 414 - unloading position; 415 - steel ball ejector pin; 416 - electric cylinder; 42 - steel ball feeding interface; 43 - material distributing push block; 430 - material distributing push block channel; 44 - slide table cylinder; 45 - vacuum helium return channel; 451 - second spring support plate; 4511 - second inclined surface; 4512 - second spring; 452 - vacuum helium return device; 46 - pressure sensor. Detailed implementation manners

[0028] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the present utility model can be combined interactively without conflicting with each other.

[0029] Please refer to Figure 1 The utility model provides a battery steel ball hitting device, including a bracket 1, on which various components are arranged. Among them, a feeding component 3, a three-axis module 2 and a steel ball hitting mechanism 4 are arranged on the bracket 1, and the three-axis module 2 cooperates with the moving steel ball hitting mechanism 4 to make the steel ball hitting mechanism 4 cooperate with the feeding component 3 to receive materials. The three-axis module 2 is fixedly arranged on the bracket 1, and the feeding component 3 is fixed above the three-axis module 2 for feeding and conveying steel balls; the steel ball hitting mechanism 4 is arranged on the three-axis module 2 and driven to move by the three-axis module 2. Specifically, the feeding mechanism is connected by moving the x-axis and y-axis, and then the three-axis positioning is performed, and the z-axis descends to hit the battery injection hole with steel balls.

[0030] Furthermore, the steel ball hitting mechanism 4 includes a steel ball guiding part 41 with a steel ball hitting channel 410 extending from top to bottom, and the steel balls are hit from the steel ball guiding part 41 into the battery filling hole. Among them, a steel ball feeding interface 42 is provided on the outside of the steel ball guiding part 41 for receiving the steel balls delivered by the feeding assembly 3, and the steel ball feeding interface 42 is connected with the steel ball hitting channel 410 inside the steel ball guiding part 41 and can deliver the steel balls to the steel ball hitting channel 410 inside the steel ball guiding part 41. In order to better receive the steel balls, a first spring plate assembly is provided below the steel ball guiding part 41, and the first spring plate assembly can support the steel balls in the absence of external force. Specifically, when the steel balls enter the steel ball hitting channel 410 via the steel ball feeding interface 42, the steel balls are first supported by the first spring plate assembly.

[0031] A second spring plate assembly is disposed below the first spring plate assembly. The first spring plate assembly includes a first spring plate seat and two first spring support plates 411 . The second spring plate assembly includes a second spring plate seat and two second spring support plates 451 .

[0032] A vacuum return helium channel 45 is provided between the first spring plate assembly and the second spring plate assembly, and the vacuum return helium channel 45 is communicated with the steel ball channel 410. Specifically, in this embodiment, the steel ball channel 410 runs through the first spring plate assembly and the second spring plate assembly, and the vacuum return helium channel 45 is communicated with the steel ball channel 410 between the first spring plate assembly and the second spring plate assembly, and the vacuum return helium channel 45 is used to evacuate the steel ball channel 410 or inject helium into the steel ball channel 410. The first spring plate assembly forms a steel ball entrance in the steel ball guide portion 41, and when the steel ball enters the steel ball channel 410 through the steel ball feeding interface 2, the steel ball will first fall into the steel ball entrance inside the first spring plate assembly. The size of the steel ball entrance is smaller than the diameter of the steel ball, which can hold the steel ball, and the steel ball can be closed when supported at the steel ball entrance, so that the space between the steel ball channel 410 at the bottom of the steel ball and the battery filling port forms a sealed space, which is convenient for evacuating the sealed space through the vacuum helium return channel 45.

[0033] The steel ball is clamped on the first spring plate assembly, and the steel ball channel 410 below the steel ball can be evacuated through the vacuum return helium channel 45. A steel ball ejector pin 415 is provided in the steel ball guide 41, and the steel ball on the first spring plate assembly is pushed into the steel ball channel 410 below the steel ball entrance through the steel ball ejector pin 415. After the steel ball passes through the entrance, it will further fall into the second spring plate assembly below.

[0034] The second spring plate assembly forms a steel ball outlet in its steel ball striking channel 410, and the steel ball outlet is used to align with the battery injection hole. The size of the steel ball outlet is smaller than the diameter of the steel ball, and can hold the steel ball. When in use, the second spring plate assembly is provided with a second spring support plate 451 inside. The second spring plate assembly aligns the steel ball with the battery injection hole, and the steel ball falls into the steel ball outlet formed by the second spring support plate 451, which is aligned with the battery injection hole. At this time, helium is continuously charged back to the steel ball striking channel 410 above the steel ball through the vacuum return helium channel 45 to break the vacuum, and the steel ball can be driven to move downward through the steel ball ejector pin 415 in the steel ball guide part 41, pushing the steel ball through the steel ball outlet and finally pushing the steel ball into the battery injection hole.

[0035] By setting a vacuum helium return channel 45 under the steel ball guide part 41, and by connecting the vacuum helium return channel 45 to hit the steel ball channel 410 and evacuating and filling it back with helium, the safety of the steel ball and the battery injection hole when connecting the material is ensured, and the steel ball is accurately positioned through the steel ball outlet formed by the second spring plate assembly to ensure that the steel ball is aligned with the battery injection hole.

[0036] Specifically, the vacuum helium return channel 45 is opened inside the first spring plate assembly or the second spring plate assembly, and the steel ball striking channel 410 between the steel ball inlet and the steel ball outlet is communicated with the vacuum helium return channel 45 .

[0037] Please refer to Figures 3 to 5, below the steel ball guiding part 41 of the steel ball punching mechanism 4, a vacuum helium return channel 45 is provided to ensure the efficiency of steel ball feeding and improve safety. The vacuum helium return channel 45 is connected to a vacuum helium return device 452, and the vacuum helium return device 452 performs the actions of evacuating and filling helium into the vacuum helium return channel 45 and the steel ball punching channel 410 communicating with the vacuum helium return channel 45. When the steel balls fall onto the first spring support plate 411, the vacuum helium return device 452 first performs the evacuation action through the vacuum helium return channel 45 to evacuate the vacuum helium return channel 45, the steel ball punching channel 410 communicating with the vacuum helium return channel 45, and the corresponding battery liquid injection hole, which is convenient for subsequently filling helium back into the battery liquid injection hole and the steel ball punching channel 410 to ensure safety at the battery liquid injection hole; after the steel balls fall onto the second spring support plate 451, the vacuum helium return device 452 fills helium into the steel ball punching channel 410 above the steel ball outlet through the vacuum helium return channel 45 to ensure that the steel ball punching channel 410 in contact with the battery liquid injection hole is in a helium environment.

[0038] Furthermore, the first elastic plate assembly includes two first spring support plates 411, the two first spring support plates 411 are arranged oppositely, and the gap between the two first spring support plates 411 forms the steel ball inlet. The first spring support plate 411 is movably embedded in the inner wall of the concave position corresponding to the installation of the first spring support plate 411 inside the first elastic plate seat through the first spring 4112. The first spring 4112 is arranged on the inner wall, and the first spring support plate 411 faces the steel ball punching channel 410. The first spring support plate 411 can be retracted into the inner wall of the steel ball guiding part 41 when being squeezed, and a first inclined surface 4111 is provided on the upper surface of the first spring support plate 411.

[0039] The steel balls can contact the first inclined surface 4111 on the first spring support plate 411, and the steel balls can cooperate with the first spring support plate 411 to form a sealed space for the steel ball punching channel 410 communicating with the vacuum helium return channel 45 below the steel ball inlet, which is convenient for the vacuum helium return channel 45 to evacuate the steel ball punching channel 410 below the steel ball inlet. When the steel ball ejector pin 415 pushes the steel balls downward, the steel balls exert pressure on the first spring support plate 411, and the force direction of the steel balls on the first spring support plate 411 is changed through the first inclined surface 4111, pushing the first spring support plate 411 against the inner wall of the steel ball guiding part 41, so that the steel ball inlet gradually becomes larger, and thus the steel balls fall into the steel ball punching channel 410 below the steel ball inlet from between the first spring support plates 411. After the steel balls pass through the steel ball inlet 410, the first spring support plate 411 resets under the elastic force of the first spring 4112, and the steel ball inlet returns to a state smaller than the diameter of the steel balls.

[0040] The steel ball drops into the second ball plate assembly through the steel ball channel 410 below the steel ball inlet, and the steel ball is pushed into the battery liquid injection hole by the steel ball ejector pin 415. Among them, the second ball plate assembly includes two second spring support plates 451, and the two second spring support plates 451 are arranged at the bottom of the steel ball channel 410. The two second spring support plates 451 are arranged oppositely, and the gap between the two second spring support plates 451 forms a steel ball outlet, and the steel ball outlet formed between the two second spring support plates 451 is aligned with the battery liquid injection hole. The second spring support plate 451 is movably embedded in the inner wall of the concave position corresponding to the installation of the second spring support plate 451 inside the second ball plate seat through the second spring 4512. The upper surface of the second spring support plate 451 is provided with a second inclined surface 4511, and by squeezing the second inclined surface 4511, it can be retracted into the inner wall of the concave position corresponding to the installation of the second spring support plate 451 inside the second ball plate seat.

[0041] When the steel ball ejector pin 415 pushes the steel ball downward, the steel ball can contact the second inclined surface 4511. By changing the force direction of the steel ball on the second spring support plate 451 through the second inclined surface 4511, the second spring support plate 451 is pushed towards the inner wall, and the two second spring plates 451 are separated from each other, and the steel ball outlet becomes larger. When the steel ball outlet is larger than the diameter of the steel ball, the steel ball ejector pin 415 drives the steel ball through the steel ball outlet, and finally the steel ball enters the battery liquid injection hole.

[0042] Among them, in order to stably feed the steel balls, a material distribution push block channel 430 is arranged on the side of the steel ball guiding part 41, and a material distribution push block 43 is also arranged inside the steel ball hitting mechanism 4. The material distribution push block 43 is movably arranged in the material distribution push block channel 430. The material distribution push block 43 is used to stably transport the steel balls from the steel ball feeding inlet 42 to the steel ball distribution channel 412 and send them into the steel ball channel 410 through the steel ball distribution channel 412. The material distribution push block 43 is arranged inside the side wall of the steel ball guiding part 41, and the material distribution push block 43 and the steel ball feeding interface 42 are arranged on the same side wall. The steel ball feeding interface 42 is arranged outside the side wall. Among them, a pushing through hole is arranged in the material distribution push block 43, and the pushing through hole can just accommodate one steel ball. In this embodiment, the pushing through hole is a round hole. When the material distribution push block 43 moves in the distribution channel, the pushing through hole can drive the steel ball to move in the material distribution push block channel 430.

[0043] Further, a loading position 413 and a discharging position 414 are provided in the material distribution pushing block channel 430. The loading position 413 and the discharging position 414 are respectively connected to the steel ball inlet 42 and the steel ball distribution channel 412. Among them, the loading position 413 is communicated with the steel ball inlet 42. When the material distribution pushing block 43 moves to the upper side and aligns the material pushing through hole with the loading position 413, at this time, the steel balls enter the material pushing through hole of the material distribution pushing block 43 through the loading position 413 from the steel ball inlet 42. The discharging position 414 is arranged below the loading position 413, and the discharging position 414 is connected to the steel ball distribution channel 412. When the material distribution pushing block 43 moves to the lower side and makes the material pushing through hole correspond to the discharging position 414, at this time, the steel balls flow into the steel ball distribution channel 412 from the material pushing through hole and fall into the steel ball distribution channel 412 from the discharging position 414. The steel balls enter the steel ball punching channel 410 through the steel ball distribution channel 412 and are finally caught by the first spring support plate 411.

[0044] Further, a slide table cylinder 44 is further included. The output end of the slide table cylinder 44 is connected to the material distribution pushing block 43. The slide table cylinder 44 is used to drive the material distribution 43 to slide in the material distribution pushing block channel 430, so that the position of the material distribution through hole can be switched between the loading position 413 and the discharging position 414.

[0045] As another implementation manner of this solution, a material distribution connection channel is provided on the side wall of the steel ball guiding portion 41. A loading position 413 and a discharging position 414 are provided in the material distribution connection channel. The loading position 413 communicates the material distribution connection channel with the steel ball inlet interface 42. The discharging position 414 is arranged below the loading position 413 and at the bottom of the material distribution connection channel. The discharging position 414 communicates the material distribution connection channel with the steel ball distribution channel 412. The steel ball distribution channel 412 inclines downward towards the steel ball guiding portion 41, so that the steel balls can directly slide into the steel ball punching channel 410 in the steel ball guiding portion 41.

[0046] The steel balls enter the material distribution connection channel through the loading position 413, then directly enter the discharging position 414 through the material distribution connection channel. Further, the steel balls enter the steel ball distribution channel 412 through the discharging position 414. Finally, the steel balls enter the steel ball punching channel 410 through the steel ball distribution channel 412 and fall in the steel ball punching channel 410 and are caught by the first spring support plate 411.

[0047] After the steel ball falls onto the first spring support plate 411, it is clamped on the steel ball inlet, sealing the steel ball punching channel 410 below the steel ball inlet. The vacuum helium return device 452 below can evacuate the vacuum helium return channel 45, the steel ball punching channel 410 communicating with the vacuum helium return channel 45, and the corresponding battery liquid injection hole. Among them, an electric cylinder 416 is provided in the steel ball punching mechanism 4. The electric cylinder 416 is a thimble driving device and is used to drive the steel ball thimble 415. Specifically, the electric cylinder 416 is arranged above the steel ball guiding part 41 and is connected to the steel ball thimble 415 to drive the steel ball thimble 415 to press downward. The steel ball is pushed by the steel ball thimble 415 and falls onto the second spring support plate 451 of the second spring plate assembly. After the steel ball is supported on the second spring support plate 451, the vacuum helium return device 452 fills the steel ball punching channel 410 with helium gas through the vacuum helium return channel 45 to ensure a safe environment in the steel ball punching channel 410. The steel ball thimble 415 extends into the vacuum helium return channel 45 to push the steel ball out of the second spring support plate 451 and finally push the steel ball into the battery liquid injection hole.

[0048] Furthermore, a pressure sensor 46 is provided between the electric cylinder 416 and the steel ball thimble 415. The pressure sensor 46 can sense the force of pressing the steel ball, so that the force of pressing the steel ball can be adjusted, which is beneficial to improving the operation stability.

[0049] Please refer to Figure 1 and Figure 2 , the steel ball punching mechanism 4 is arranged on the three-axis module 2 to perform three-axis transportation, realizing feeding and steel ball punching positioning. Among them, the three-axis module 2 includes an x-axis linear module 22, a y-axis linear module 21, and a z-axis linear module 23. Position movement positioning is realized through the x-axis linear module 22 and the y-axis linear module 21, and up and down movement is realized through the z-axis linear module 23 to contact the positioning point.

[0050] Among them, the steel ball punching mechanism 4 is arranged on the z-axis linear module 23 to realize up and down movement. The z-axis linear module 23 is arranged on the x-axis linear module 22, and the whole of the z-axis linear module 23 realizes x-axis linear movement on the x-axis linear module 22. The x-axis linear module 22 is arranged on the y-axis linear module 21 to drive the z-axis linear module 23 and the steel ball punching mechanism 4 to realize y-axis linear movement. Thus, the steel ball punching mechanism 4 realizes three-axis movement of the x, y, and z axes in the three-axis module 2. First, it moves to the feeding module to receive materials, and then moves to the corresponding battery liquid injection hole to punch steel balls.

[0051] Furthermore, in order to locate the position of the battery liquid injection hole, a CCD device 24 is provided on the z-axis linear module 23. The CCD device 24 moves along the x and y axes with the z-axis linear module 23 to take pictures for positioning the liquid injection hole. The x-axis linear module 22 and the y-axis linear module 21 automatically find the position according to the positioning data of the CCD device 24. The z-axis linear module 23 descends to the pre-steel ball punching position, and the steel ball punching mechanism 4 presses against the battery liquid injection hole and performs operations such as vacuum pumping back helium and punching steel balls. The use of the CCD device 24 in cooperation with the three-axis module 2 can achieve the accurate alignment of the steel ball punching mechanism 4 with the position of the liquid injection hole. At the same time, the electric cylinder 416 is used in cooperation with the pressure sensor 46 to punch steel balls, resulting in high precision and good stability of the steel ball punching.

[0052] Please refer to Figure 1 and Figure 5 , the feeding component 3 is arranged above the three-axis module 2. Among them, the feeding component 3 includes a vibrating disk hopper 32 and a discharging component 34. The vibrating disk hopper 32 is filled with a large number of steel balls and is conveyed to the discharging component 34. Among them, a vibrating disk base 31 is provided at the bottom of the vibrating disk hopper 32 for supporting the vibrating disk hopper 32. The vibrating disk base 31 provides a circular vibration force to the vibrating disk hopper 32, vibrating the steel balls in the hopper from the bottom of the hopper to the discharging component 34.

[0053] The vibrating disk hopper 32 is connected to the discharging component 34 through a linear vibrating feeder 33. The linear vibrating feeder 33 generates a linear vibration force to vibrate the steel balls near the vibrating disk hopper 32 into the discharging component 34. The discharging component 34 includes a discharging plate 341 and a cutting cylinder assembly 342. There is a discharging round hole on the discharging plate 341, and the discharging round hole can just hold a steel ball. The cutting cylinder assembly 342 is arranged opposite to the discharging round hole to cut the steel balls and cut the steel balls into the discharging round hole on the discharging plate 341.

[0054] The discharging component 34 also includes an air pipe (not shown). The air pipe is connected to the discharging round hole. When the steel ball punching mechanism 4 moves to the discharging component 34, the air pipe is connected to the steel ball feeding interface 42 of the steel ball punching mechanism 4, and the steel balls finally fall into the steel ball feeding interface 42 under the action of gravity.

[0055] The utility model accurately positions by setting a three-axis module 2 in cooperation with a CCD device 24. The steel bead punching mechanism 4 moves to the feeding module for feeding, and then moves to the corresponding battery liquid injection hole for punching steel beads. When punching steel beads, the material distribution push block 43 moves in the material distribution push block channel 430, so that the steel beads fall from the pushing through hole into the steel bead punching channel 410 of the steel bead guiding part 41. After the steel beads enter the steel bead punching channel 410, the steel beads are caught by the first spring support plate 411; the steel beads are clamped on the first spring support plate 411 to seal the lower steel bead punching channel 410. The vacuum helium return device 452 evacuates the steel bead punching channel 410 below the steel bead inlet through the vacuum helium return channel 45. The steel bead ejector pin 415 pushes the steel beads on the first spring support plate 411 into the second spring plate assembly, and the steel beads fall onto the second spring support plate 451. The steel bead outlet formed by the second spring support plate 451 accurately positions the steel beads to ensure that the steel beads are aligned with the battery liquid injection hole. The vacuum helium return device 452 fills the steel bead punching channel 410 with helium through the vacuum helium return channel 45 to ensure the safety when the steel beads are docked and fed into the battery liquid injection hole. When the steel beads are pushed into the liquid injection hole by the steel bead ejector pin 415, the force of pressing the steel beads can be sensed by the pressure sensor 46, so that the force of pressing the steel beads can be adjusted, which is beneficial to improving the operation stability.

[0056] The above is a specific description of the preferred embodiment of the present utility model, but the creation of the present utility model is not limited to the described embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A battery steel ball hitting device, characterized in that: It includes a bracket, a feeding assembly, a three-axis module and a steel ball hitting mechanism, wherein the three-axis module is fixed on the bracket, the feeding assembly is fixed above the three-axis module, the feeding assembly is used to convey steel balls, and the steel ball hitting mechanism is arranged on the three-axis module; the steel ball hitting mechanism includes a steel ball ejector, an ejector drive device and a steel ball guide, the steel ball guide is provided with a steel ball hitting channel running from top to bottom, a steel ball distribution channel and a vacuum helium return channel respectively connected to the steel ball hitting channel, and the steel ball distribution channel is arranged on the upper side of the vacuum helium return channel; A first spring plate assembly is provided below the steel ball guide portion, the first spring plate assembly is provided between the steel ball distribution channel and the vacuum helium return channel, the first spring plate assembly includes a first spring support plate, and the first spring support plate forms a steel ball inlet inside the first spring plate assembly, and the width of the steel ball inlet is smaller than the diameter of the steel ball; A second spring plate assembly is provided below the first spring plate assembly, the second spring plate assembly includes a second spring support plate, and the second spring support plate forms a steel ball outlet inside the second spring plate assembly, the width of the steel ball outlet is smaller than the diameter of the steel ball, and the steel ball ejector pin is arranged in the steel ball guide part.

2. The battery steel ball hitting device according to claim 1, characterized in that: The first spring plate assembly includes a first spring plate seat and two first spring support plates, the two first spring support plates are horizontally arranged opposite to each other and form the steel ball inlet, and the first spring support plate is telescopically embedded in the inner wall of the first spring plate seat through the first spring; the second spring plate assembly includes a second spring plate seat and two second spring support plates, the two second spring support plates are horizontally arranged opposite to each other and form the steel ball outlet, and the second spring support plate is movably embedded in the inner wall of the second spring plate seat through the second spring.

3. The battery steel ball hitting device according to claim 2, characterized in that: A first inclined surface is provided on the upper surface of the first spring support plate, and the first inclined surface is provided on the upper surface of the first spring support plate and forms the steel ball inlet; a second inclined surface is provided on the upper surface of the second spring support plate, and the second inclined surface is provided on the upper surface of the second spring support plate and forms the steel ball outlet.

4. The battery steel ball hitting device according to claim 1, characterized in that: The side of the steel ball guide part is provided with a steel ball feeding interface and a material distribution push block channel, a material distribution push block is movably provided in the material distribution push block channel, the material distribution push block channel and the steel ball feeding interface are arranged on the same side, the material distribution push block has a material distribution through hole, and the material distribution through hole is used to accommodate the steel ball; An upper material position and a lower material position are provided in the material distribution push block channel, the upper material position connects the material distribution push block channel with the steel ball feeding interface, and the lower material position connects the material distribution push block channel with the steel ball distribution channel. The material distribution push block is movably arranged in the material distribution push block channel, the steel ball feeding interface and the steel ball distribution channel correspond to the upper material position and the lower material position respectively, and the steel ball can enter the material distribution push block through the upper material position and further enter the lower material position through the material distribution push block; The steel ball hitting mechanism includes a slide cylinder, which is used to drive the material distribution push block to move up and down in the material distribution push block channel so that the material pushing through hole is aligned with the upper material position and the lower material position.

5. The battery steel ball hitting device according to claim 1, characterized in that: The side wall of the steel ball guide part is provided with a material distribution connection channel and a steel ball feeding interface, and the material distribution connection channel and the steel ball feeding interface are arranged on the same side; an upper material position and a lower material position are provided in the material distribution connection channel, the upper material position connects the material distribution connection channel with the steel ball feeding interface, and the lower material position connects the material distribution connection channel with the steel ball material distribution channel, and the steel balls can enter the material distribution connection channel through the upper material position, and then enter the lower material position through the material distribution connection channel and further enter the steel ball material distribution channel through the lower material position.

6. The battery steel ball hitting device according to claim 1, characterized in that: The ejector drive device comprises an electric cylinder, which is connected to the steel ball ejector, and a pressure sensor is arranged between the electric cylinder and the steel ball ejector.

7. The battery steel ball hitting device according to claim 1, characterized in that: The vacuum helium return channel is connected with a vacuum helium return device, and the vacuum helium return device is used for evacuating vacuum and filling with helium.

8. The battery steel ball hitting device according to claim 1, characterized in that: The three-axis module includes an x-axis linear module, a y-axis linear module and a z-axis linear module. The x-axis linear module is arranged on the y-axis linear module, the z-axis linear module is arranged on the x-axis linear module, and the steel ball hitting mechanism is arranged on the z-axis linear module; a CCD device is arranged on the z-axis linear module.

9. The battery steel ball hitting device according to claim 1, characterized in that: The feeding assembly comprises a vibrating disc hopper and a discharging assembly, wherein a vibrating disc base is provided at the bottom of the vibrating disc hopper; the vibrating disc hopper is connected to the discharging assembly via a direct vibration feeder.

10. The battery steel ball hitting device according to claim 9, characterized in that: The discharging assembly comprises a discharging plate and a cutting cylinder assembly, wherein the discharging plate is provided with a discharging circular hole; the discharging assembly further comprises an air pipe, wherein the air pipe is connected to the discharging circular hole.

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