Battery formation needle bed

Abstract

The utility model discloses a battery formation needle bed which comprises a needle bed frame, a battery tray, a first lifting mechanism and a probe suction nozzle mechanism, and the battery tray is arranged on the needle bed frame; the first lifting mechanism is mounted on the needle bed frame; the probe suction nozzle mechanism comprises an upper frame, an X-axis assembly, a Y-axis assembly and a suction nozzle assembly, the first lifting mechanism is in driving connection with the upper frame, the suction nozzle assembly comprises a suction nozzle mounting plate and a plurality of negative pressure suction nozzles arranged on the suction nozzle mounting plate, the X-axis assembly is slidably connected to the upper frame, and the Y-axis assembly is slidably connected to the lower frame. The Y-axis assembly is slidably connected to the X-axis assembly, and the suction nozzle mounting plate is slidably connected to the Y-axis assembly; a guide shaft is arranged on the Y-axis assembly, a positioning hole is formed in the battery tray, and the guide shaft can be inserted into the positioning hole for positioning. According to the utility model, the precision and efficiency of aligning the negative pressure suction nozzle to the battery liquid injection hole can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field, especially a kind of battery formation needle bed. BACKGROUND

[0002] In lithium ion battery formation process, a large amount of gas will be generated inside the battery, if the gas is not discharged by using negative pressure suction nozzle equipment, there are problems of poor formation effect and safety risk in formation operation. In the prior art, the power battery negative pressure formation suction nozzle adopts the mode of manually aligning the suction nozzle and the battery liquid injection hole. After alignment, manual fine adjustment is needed, which is time-consuming and labor-intensive, reduces the battery formation efficiency, and also has the problem of low docking accuracy, so that electrolyte overflows during the formation process, affecting the sealing effect of the liquid injection hole after battery formation. UTILITARY MODEL

[0003] The main purpose of the utility model is to provide a kind of battery formation needle bed, to improve the precision and efficiency of negative pressure suction nozzle aligning battery liquid injection hole.

[0004] To achieve the above purpose, the utility model provides a kind of battery formation needle bed, comprising:

[0005] Needle bed frame;

[0006] Battery tray, arranged on the needle bed frame;

[0007] First lifting mechanism, the first lifting mechanism is installed on the needle bed frame;

[0008] Probe suction nozzle mechanism, the probe suction nozzle mechanism includes upper frame, X-axis assembly, Y-axis assembly and suction nozzle assembly, the first lifting mechanism is drivenly connected with the upper frame, the suction nozzle assembly includes suction nozzle mounting plate and a plurality of negative pressure suction nozzles arranged on the suction nozzle mounting plate, the X-axis assembly is slidably connected to the upper frame, the Y-axis assembly is slidably connected to the X-axis assembly, and the suction nozzle mounting plate is slidably connected to the Y-axis assembly;

[0009] Guiding shaft is arranged on the Y-axis assembly, and positioning hole is arranged on the battery tray, the guiding shaft can be inserted into the positioning hole for positioning.

[0010] Preferably, buffer assembly is installed on the upper frame, Y-axis assembly is connected with mid-rod, mid-rod has fixed end and floating end, fixed end is fixedly connected with Y-axis assembly, buffer assembly is surrounded on the peripheral wall of floating end and elastically contacts with it.

[0011] Preferably, the buffer assembly comprises a plurality of oil pressure buffers, a plurality of buffer seats, a plurality of springs, the buffer seats are mounted on the upper frame, the oil pressure buffers are arranged on the buffer seats, the oil pressure buffers have buffer heads towards the guide shaft, the springs are sleeved on the outer periphery of the buffer heads, and the buffer heads of the plurality of oil pressure buffers are uniformly surrounded and pressed on the circumferential wall of the floating end.

[0012] Preferably, the number of the plurality of oil pressure buffers, the plurality of buffer seats and the plurality of springs is four.

[0013] Preferably, a linear guide rail is arranged on the upper frame, the X-axis assembly comprises an upper slide plate, a slide block seat and an X-axis guide rail, the slide block seat is fixed on the upper slide plate, a first slide block is arranged on the slide block seat, the first slide block is slidably connected to the linear guide rail, and the bottom of the upper slide plate is further provided with the X-axis guide rail.

[0014] Preferably, the Y-axis assembly comprises a lower slide plate, a second slide block and a Y-axis guide rail, the middle rod is fixedly connected to the lower slide plate, the second slide block is fixed on the lower slide plate, the second slide block is slidably connected to the X-axis guide rail, and the bottom of the lower slide plate is provided with the Y-axis guide rail, a third slide block is fixed on the nozzle mounting plate, and the third slide block is slidably connected to the Y-axis guide rail.

[0015] Preferably, the battery formation needle bed further comprises an upper probe support plate, a current probe is arranged on the upper probe support plate, a fourth slide block is arranged on the upper probe support plate, and the fourth slide block is slidably connected to the linear guide rail.

[0016] Preferably, from the direction away from the battery tray to the direction close to the battery tray, the diameter of the cross section of the guide shaft towards the end of the battery tray is gradually reduced.

[0017] Preferably, a temperature probe is further arranged on the nozzle mounting plate.

[0018] Preferably, the battery formation needle bed further comprises a second lifting mechanism and a lower probe module, and the second lifting mechanism is drivingly connected to the lower probe module.

[0019] Compared with the prior art, the battery formation needle bed in the technical scheme of the utility model is used, the position of the suction nozzle mounting plate is adjusted in advance, the suction nozzle on the suction nozzle mounting plate can be adapted to the liquid injection hole position of the battery to be formed, and after the adjustment is completed, when the formation operation is carried out, the X-axis assembly and the Y-axis assembly are roughly adjusted so that the guide shaft is positioned in the positioning hole on the battery tray, then the first lifting mechanism drives the upper frame to descend and drives the X-axis assembly and the Y-axis assembly to descend, and then the guide shaft is inserted into the positioning hole to complete the positioning of the probe suction nozzle mechanism, so that the negative pressure suction nozzle is accurately pressed at the battery liquid injection hole. In this way, the probe suction nozzle mechanism is positioned by inserting the guide shaft into the positioning hole, the negative pressure suction nozzle is positioned and aligned with the battery liquid injection hole, the accuracy of the negative pressure suction nozzle in aligning with the battery liquid injection hole is improved, and different battery models can be compatible for formation, and the compatibility of the battery formation needle bed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the battery formation needle bed of the utility model;

[0021] Figure 2 It is a structural schematic view of the probe suction nozzle mechanism in the battery formation needle bed of the utility model;

[0022] Figure 3 It is a structural schematic view of the probe suction nozzle mechanism in the battery formation needle bed of the utility model;

[0023] Figure 4 It is a structural schematic view of the X-axis assembly, the Y-axis assembly and the suction nozzle assembly in the battery formation needle bed of the utility model;

[0024] Figure 5 It is a structural schematic view of the X-axis assembly, the Y-axis assembly and the suction nozzle assembly in the battery formation needle bed of the utility model;

[0025] Figure 6 It is an explosion view of Figure 4 ;

[0026] Figure 7 It is an explosion view of Figure 4 another view;

[0027] Figure 8 It is a structural schematic view of the battery tray in the battery formation needle bed of the utility model;

[0028] Figure 9 It is a structural schematic view of the buffer assembly in the battery formation needle bed of the utility model;

[0029] Figure 10 It is a structural schematic view of the upper frame in the battery formation needle bed of the utility model.

[0030] Explanation of reference numerals: 100, needle bed frame; 200, battery tray; 210, battery; 300, first lifting mechanism; 400, probe suction nozzle mechanism; 410, upper frame; 420, X-axis assembly; 430, Y-axis assembly; 440, buffer assembly; 450, suction nozzle assembly; 451, suction nozzle mounting plate; 452, temperature probe; 441, mid-position rod; 443, fixed end; 444, floating end; 500, guide shaft; 501, positioning hole; 510, oil pressure buffer; 520, buffer seat; 530, spring; 511, buffer head; 310, driving cylinder; 320, driving connecting block; 110, linear guide rail; 421, upper sliding plate; 422, sliding block seat; 111, first sliding block; 423, X-axis guide rail; 431, lower sliding plate; 432, second sliding block; 433, Y-axis guide rail; 610, third sliding block; 620, upper probe support plate; 630, current probe; 640, fourth sliding block; 650, negative pressure suction nozzle; 700, second lifting mechanism; 710, lower probe module. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Please refer to Figures 1 to 10 The utility model provides a kind of battery formation needle bed.

[0033] The battery formation needle bed includes needle bed frame 100, battery tray 200, first lifting mechanism 300 and probe suction nozzle mechanism 400, battery tray 200 is arranged on the needle bed frame 100;The first lifting mechanism 300 is installed on the needle bed frame 100;The probe suction nozzle mechanism 400 includes upper frame 410, X-axis assembly 420, Y-axis assembly 430 and suction nozzle assembly 450, the first lifting mechanism 300 is driven to connect the upper frame 410, the suction nozzle assembly 450 includes suction nozzle mounting plate 451 and the plurality of negative pressure suction nozzles 650 arranged on the suction nozzle mounting plate 451, the X-axis assembly 420 is slidably connected to the upper frame 410, the Y-axis assembly 430 is slidably connected to the X-axis assembly 420, and the suction nozzle mounting plate 451 is slidably connected to the Y-axis assembly 430;Guide shaft 500 is provided on the Y-axis assembly 430, positioning hole 501 is provided on the battery tray 200, and the guide shaft 500 can be inserted into the positioning hole 501 for positioning.

[0034] Specifically, the first lifting mechanism 300 can drive the connecting block 320 through the driving end of the driving cylinder 310, and drive the upper frame 410 to move linearly, so as to drive the whole probe suction nozzle mechanism 400 to move up or down, so that the negative pressure suction nozzle 650 on the suction nozzle mounting plate 451 is aligned with the battery liquid injection hole in the battery tray 200. Of course, the first lifting mechanism 300 can also drive the upper frame 410 to move in other ways, as long as it can drive the upper frame 410 to move up and down. The suction nozzle mounting plate 451 can be installed with a negative pressure suction nozzle rod connected with the negative pressure suction nozzle 650. The battery formation needle bed of the utility model is used, the position of the suction nozzle mounting plate 451 is adjusted in advance, so that the suction nozzle on the suction nozzle mounting plate 451 can adapt to the liquid injection hole position of the battery 210 to be formed, and when the guide shaft 500 is inserted into the positioning hole 501 after adjustment, the negative pressure suction nozzle 650 is automatically aligned with the battery liquid injection hole. When the formation operation is carried out, the X-axis assembly 420 and the Y-axis assembly 430 are roughly adjusted to make the guide shaft 500 preliminarily position the positioning hole 501 on the battery tray 200, and then the first lifting mechanism 300 drives the upper frame 410 to move down to drive the X-axis assembly 420 and the Y-axis assembly 430 to move down, so that the guide shaft 500 is inserted into the positioning hole 501 to complete the positioning of the probe suction nozzle mechanism 400, so that the negative pressure suction nozzle 650 is accurately pressed at the battery liquid injection hole. By inserting the guide shaft 500 into the positioning hole 501, the probe suction nozzle mechanism 400 is positioned, the negative pressure suction nozzle 650 is positioned and aligned with the battery liquid injection hole, the accuracy of the negative pressure suction nozzle 650 in aligning with the battery liquid injection hole is improved, and different battery 210 models can be compatible for formation, so that the compatibility of the battery formation needle bed is improved.

[0035] Please refer to Figures 2 to 9, preferably, the upper frame 410 is provided with a buffer assembly 440, the Y-axis assembly 430 is connected with a middle rod 441, the middle rod 441 has a fixed end 443 and a floating end 444, the fixed end 443 is fixedly connected with the Y-axis assembly 430, and the buffer assembly 440 is annularly arranged on the peripheral wall of the floating end 444 and elastically contacts with the floating end 444. Specifically, the fixed end 443 of the middle rod 441 is fixedly connected with the X-axis assembly 420, and the floating end 444 elastically contacts with the buffer assembly 440, so that the fixed end 443 of the middle rod 441 is a free end and can sway with the guide shaft 500 and the X-axis assembly 420. The negative pressure suction nozzle 650 can move in four directions of front, back, left and right through the X-axis assembly 420 and the Y-axis assembly 430, and due to the buffering effect of the buffer assembly 440 on the middle rod 441, the guide shaft 500 can transmit the reaction force of the positioning hole 501 to the middle rod 441 through the Y-axis assembly 430 during the process of being inserted into the positioning hole 501 of the battery tray 200, and the reaction force is buffered through the elastic contact between the middle rod 441 and the buffer assembly 440, so that the guide shaft 500 on the Y-axis assembly 430 can be self-adapted and more smoothly inserted into the positioning hole 501 of the battery tray 200, and the precise positioning of the negative pressure suction nozzle 650 is completed. It can be understood that, if the buffer assembly 440 is not provided, the middle rod 441 is fixed and cannot move, and the guide shaft 500 has no buffering object to adapt to the positioning hole 501, so that it is difficult to insert the guide shaft 500 into the positioning hole 501. Through the insertion of the guide shaft 500 into the positioning hole 501, the positioning of the negative pressure suction nozzle 650 is realized, the position deviation of the negative pressure suction nozzle 650 is prevented, the accuracy of the negative pressure suction nozzle 650 aiming at the battery liquid injection hole is ensured, and the floating end 444 of the middle rod 441 elastically contacts with the buffer assembly 440, so that the guide shaft 500 and the Y-axis assembly 430 can transmit the reaction force to the middle rod 441 and the buffer assembly 440, the process of inserting the guide shaft 500 into the positioning hole 501 has self-adaptability, the motion flexibility and flexibility of the whole probe suction nozzle mechanism 400 are effectively improved, and the positioning accuracy and positioning efficiency of the negative pressure suction nozzle 650 are improved.

[0036] Please refer to Figure 9, preferably, the buffer assembly 440 comprises a plurality of oil buffers 510, a plurality of buffer seats 520, a plurality of springs 530, the buffer seats 520 are mounted on the upper frame 410, the oil buffers 510 are arranged on the buffer seats 520, the oil buffers 510 have buffer heads 511 facing the guide shaft 500, the springs 530 are sleeved on the outer periphery of the buffer heads 511, and the buffer heads 511 of the plurality of oil buffers 510 are uniformly arranged around and pressed against the circumferential wall of the floating end 444. The uniform arrangement of the plurality of oil buffers 510 pressing against the guide shaft 500 should ensure that the force acting on the center rod 441 is uniform, so that the buffer effect of the guide shaft 500 is good. In this way, through the pressing effect of the oil buffers 510 and the springs 530 on the center rod 441 in each direction, the buffer effect of the center rod 441 is ensured, so that the guide shaft 500 can be more smoothly inserted into the positioning hole 501.

[0037] Please refer to Figure 9 , preferably, the number of the plurality of oil buffers 510, the plurality of buffer seats 520 and the plurality of springs 530 is four. The plurality of oil buffers 510, the plurality of buffer seats 520 and the plurality of springs 530 are uniformly arranged, there are two oil buffers 510 and two springs 530 in the stroke direction of the X-axis guide rail 423, and there are two oil buffers 510 and two springs 530 in the stroke direction of the Y-axis guide rail 433. In this way, the movement of the guide shaft 500 drives the movement of the X-axis assembly 420, the Y-axis assembly 430 and the center rod 441, and then the center rod 441 is buffered through the elastic force in four directions, effectively improving the movement flexibility and flexibility of the entire probe suction nozzle mechanism 400, and improving the positioning accuracy and positioning efficiency of the negative pressure suction nozzle 650.

[0038] Please refer to Figure 6 , Figure 7 and Figure 10 , preferably, the upper frame 410 is provided with a linear guide rail 110, the X-axis assembly 420 comprises an upper sliding plate 421, a sliding block seat 422 and an X-axis guide rail 423, the sliding block seat 422 is fixed to the upper sliding plate 421, the sliding block seat 422 is provided with a first sliding block 111, the first sliding block 111 is slidably connected to the linear guide rail 110, and the bottom of the upper sliding plate 421 is further provided with the X-axis guide rail 423, and the Y-axis assembly 430 is slidably connected to the X-axis guide rail 423. Specifically, the upper sliding plate 421 can slide on the linear guide rail 110 through the first sliding block 111 on the sliding block seat 422, thereby driving the movement of the X-axis guide rail 423, the Y-axis assembly 430 and the guide shaft 500, and thereby adjusting the position of the guide shaft 500.

[0039] Please refer to Figures 6 to 7Preferably, the Y-axis assembly 430 comprises a lower slide plate 431, a second slide block 432, a Y-axis guide rail 433, the middle rod 441 is fixedly connected to the lower slide plate 431, the second slide block 432 is fixed on the lower slide plate 431, the second slide block 432 is slidably connected to the X-axis guide rail 423, and the bottom of the lower slide plate 431 is provided with the Y-axis guide rail 433. The third slide block 610 is fixed on the suction nozzle mounting plate 451 and is slidably connected to the Y-axis guide rail 433. Specifically, the third slide block 610 can slide on the Y-axis guide rail 433, the suction nozzle mounting plate 451 can slide relative to the Y-axis guide rail 433 and the lower slide plate 431, thereby driving the suction nozzle mounting plate 451 and the negative pressure suction nozzle 650 to move. The sliding direction of the lower slide plate 431 is opposite to that of the upper slide plate 421, and the sliding direction of the suction nozzle mounting plate 451 is opposite to that of the lower slide plate 431. The lower slide plate 431 can slide on the X-axis guide rail 423 through the second slide block 432, thereby driving the suction nozzle mounting plate 451 and the negative pressure suction nozzle 650 to move and adjust the position of the negative pressure suction nozzle 650.

[0040] Please refer to Figures 6 to 7 Preferably, the battery formation needle bed further comprises an upper probe supporting plate 620, a current probe 630 is arranged on the upper probe supporting plate 620, and a fourth slide block 640 is arranged on the upper probe supporting plate 620 and slidably connected to the linear guide rail 110. The upper probe supporting plate 620 is slidably connected to the linear guide rail 110 through the second slide block 432, so as to drive the current probe 630 to correspond to a current corresponding position. The current probe 630 is used for measuring whether the battery 210 is in a suitable current range. The upper probe supporting plate 620 is independent relative to the X-axis assembly 420 and the Y-axis assembly 430, that is, the current probe 630 and the negative pressure suction nozzle 650 have independent transmission structures respectively. Since the positioning accuracy requirement of the current probe 630 is relatively low compared with that of the formation suction nozzle, the upper probe supporting plate 620 can be arranged without a floating function. The current probe 630 in the embodiment is a gate type current probe 630.

[0041] Please refer to Figures 6 to 8 To further improve the smoothness of the insertion of the guide shaft 500 into the positioning hole 501, preferably, the diameter of the cross section of the end of the guide shaft 500 gradually decreases from the direction away from the battery tray 200 to the direction close to the battery tray 200. In this way, during the process that the end of the guide shaft 500 contacts the positioning hole 501, the guide shaft 500 can be guided to be inserted into the positioning hole 501 through the end with the gradually decreasing diameter, so that the guide shaft 500 is more smoothly inserted into the positioning hole 501, and the positioning efficiency is improved.

[0042] Please refer to Figures 6 to 7, preferably, the nozzle mounting plate 451 is further provided with a temperature probe 452. The temperature probe 452 is used to test the temperature of the battery 210, and feed the temperature data of the battery 210 to the control device of the battery formation needle bed, so as to ensure that the battery 210 is in a suitable working temperature. Thus, in the process of adjusting the position of the negative pressure nozzle 650 on the nozzle mounting plate 451, the position of the temperature probe 452 is also adjusted, so that the negative pressure nozzle 650 and the temperature probe 452 can be positioned and pressed on the corresponding position of the battery 210 synchronously.

[0043] Please refer to Figure 1 , preferably, the battery formation needle bed further comprises a second lifting mechanism 700 and a lower probe module 710, and the second lifting mechanism 700 is drivingly connected to the lower probe module 710. Specifically, the second lifting mechanism 700 can drive the lower probe module 710 to move up and down by means of a pneumatic cylinder. The structure of the lower probe module 710 is conventional and will not be described here. When the battery formation needle bed is formed, the current probe 630, the nozzle and the temperature probe 452 of the probe nozzle mechanism 400 are pressed on the corresponding positions of the battery 210 by the first lifting mechanism 300, and the corresponding probes of the lower probe module 710 are pressed on the corresponding positions of the battery 210 by the second lifting mechanism 700, so as to test the charging and discharging of the battery 210.

[0044] The above is only an optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A battery formation needle bed, characterized by, The battery formation needle bed comprises: a needle bed frame; a battery tray arranged on the needle bed frame; a first lifting mechanism mounted on the needle bed frame; a probe suction nozzle mechanism comprising an upper frame, an X-axis assembly, a Y-axis assembly, and a suction nozzle assembly, the first lifting mechanism being drivingly connected to the upper frame, the suction nozzle assembly comprising a suction nozzle mounting plate and a plurality of negative pressure suction nozzles arranged on the suction nozzle mounting plate, the X-axis assembly being slidably connected to the upper frame, the Y-axis assembly being slidably connected to the X-axis assembly, and the suction nozzle mounting plate being slidably connected to the Y-axis assembly; a guide shaft arranged on the Y-axis assembly and a positioning hole arranged on the battery tray, the guide shaft being capable of being inserted into the positioning hole for positioning.

2. The battery formation needle bed of claim 1, wherein, A buffer assembly is mounted on the upper frame, and the Y-axis assembly is connected with a middle rod having a fixed end and a floating end, the fixed end being fixedly connected to the Y-axis assembly, and the buffer assembly being in elastic contact with the circumferential wall of the floating end.

3. The battery formation needle bed of claim 2, wherein, The buffer assembly comprises a plurality of oil pressure buffers, a plurality of buffer seats, and a plurality of springs, the buffer seats being mounted on the upper frame, the oil pressure buffers being arranged on the buffer seats, the oil pressure buffers having buffer heads facing the guide shaft, and the springs being sleeved on the outer circumferences of the buffer heads, the buffer heads of the plurality of oil pressure buffers being uniformly arranged around and pressed against the circumferential wall of the floating end.

4. The battery formation needle bed of claim 3, wherein, The number of the plurality of oil pressure buffers, the plurality of buffer seats, and the plurality of springs is four.

5. The battery formation needle bed of claim 2, wherein, A linear guide rail is arranged on the upper frame, the X-axis assembly comprises an upper sliding plate, a sliding block seat, and an X-axis guide rail, the sliding block seat being fixed to the upper sliding plate, a first sliding block being arranged on the sliding block seat and being slidably connected to the linear guide rail, the bottom of the upper sliding plate being further provided with the X-axis guide rail, and the Y-axis assembly being slidably connected to the X-axis guide rail.

6. The battery formation needle bed of claim 5, wherein, The Y-axis assembly comprises a lower sliding plate, a second sliding block, and a Y-axis guide rail, the middle rod being fixedly connected to the lower sliding plate, the second sliding block being fixed to the lower sliding plate and being slidably connected to the X-axis guide rail, and the bottom of the lower sliding plate being provided with the Y-axis guide rail, and a third sliding block being fixed to the suction nozzle mounting plate and being slidably connected to the Y-axis guide rail.

7. The battery formation needle bed of claim 6, wherein, The battery formation needle bed further comprises an upper probe support plate, the upper probe support plate being provided with a current probe and a fourth sliding block, and the fourth sliding block being slidably connected to the linear guide rail.

8. The battery formation needle bed of claim 1, wherein, From a direction away from the battery tray to a direction close to the battery tray, the diameter of the cross section of the end of the guide shaft close to the battery tray is tapered.

9. The battery formation needle bed of claim 1, wherein, The suction nozzle mounting plate is further provided with a temperature probe.

10. The battery formation needle bed of claim 9, wherein, The battery formation needle bed further comprises a second lifting mechanism and a lower probe module, and the second lifting mechanism is drivingly connected to the lower probe module.

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