阅读说明：本技术 一种方形电池化成钉的自动插钉装置 (Automatic nail inserting device for square battery formation nail ) 是由 郝鹏杰 于 2020-12-31 设计创作，主要内容包括：本发明公开一种方形电池化成钉自动插钉装置,包括用于输送锂电池的输送机构,还包括固设于所述输送机构一侧的供钉机,以及位于输送机构正上方的插钉机构,所述插钉机构由驱动机构带动在供钉机和输送机构之间移动；所述插钉机构包括固定板及安装于固定板上的驱动装置,所述固定板通过直线导轨连接有电机架,所述驱动装置的活动端与电机架连接；所述电机架上安装有与锂电池的注液口相对应设置的空心轴,所述空心轴的内部开设有贯通的钉腔,所述钉腔的顶端通过真空吸管与空压机连接。本装置实现了全自动化插钉操作,并且能同时多个锂电池进行插钉,大大地提高了工作效率和密封性能。(The invention discloses an automatic nail inserting device for square battery formation nails, which comprises a conveying mechanism for conveying a lithium battery, a nail feeder fixedly arranged on one side of the conveying mechanism, and a nail inserting mechanism positioned right above the conveying mechanism, wherein the nail inserting mechanism is driven by a driving mechanism to move between the nail feeder and the conveying mechanism; the nail inserting mechanism comprises a fixed plate and a driving device arranged on the fixed plate, the fixed plate is connected with a motor frame through a linear guide rail, and the movable end of the driving device is connected with the motor frame; the motor frame is provided with a hollow shaft which is arranged corresponding to a liquid injection port of the lithium battery, a through nail cavity is formed in the hollow shaft, and the top end of the nail cavity is connected with the air compressor through a vacuum suction pipe. The device realizes full-automatic nail inserting operation, can insert nails by a plurality of lithium batteries simultaneously, and greatly improves the working efficiency and the sealing performance.)

1. The utility model provides an automatic nail device of inserting of square battery ization nail, is including conveying mechanism (1) that is used for carrying the lithium cell, its characterized in that: the nail inserting machine is characterized by further comprising a nail supplying machine (2) fixedly arranged on one side of the conveying mechanism (1) and a nail inserting mechanism (4) located right above the conveying mechanism (1), wherein the nail inserting mechanism (4) is driven by the driving mechanism (3) to move between the nail supplying machine (2) and the conveying mechanism (1); the nail inserting mechanism (4) comprises a fixing plate (41) and a driving device (43) arranged on the fixing plate (41), the fixing plate (41) is connected with a motor frame (45) through a linear guide rail (42), and the movable end of the driving device (43) is connected with the motor frame (45); install on motor frame (45) hollow shaft (47) with the corresponding setting of notes liquid mouth of lithium cell, the nail chamber that link up is seted up to the inside of hollow shaft (47), the top in nail chamber is passed through the vacuum straw and is connected with the air compressor machine.

2. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: a shaft motor (44) is mounted on the motor frame (45), and the shaft motor (44) is connected with a hollow shaft (47) through a synchronous belt (48); a coaming (49) is arranged on the outer side of the hollow shaft (47), and the coaming (49) is fixedly installed on the motor frame (45).

3. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: the driving device (43) is an air cylinder or an oil cylinder, and the movable end of the driving device (43) is connected with the motor frame (45) through a floating joint (46); the hollow shaft (47) is mounted on the motor frame (45) through a bearing (471).

4. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: the driving mechanism (3) comprises supporting columns (34) erected on two outer sides of the conveying mechanism (1), a cross beam (31) and a drag chain (32) are fixedly arranged at the top ends of the supporting columns (34) in parallel, a screw rod is arranged in the cross beam (31), a screw rod of the screw rod is connected with a driving motor, and a nut of the screw rod is connected with a fixing plate (41) to drive the fixing plate (41) to horizontally move on the cross beam (31); the drag chain (32) and the fixing plate (41) are fixedly connected through the connecting plate (32) to realize synchronous movement.

5. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: conveying mechanism (1) includes carriage (11), conveying chain (12) and locates conveyer belt (13) on conveying chain (12), battery case (14) that are used for loading lithium cell (6) are set firmly at the interval on conveyer belt (13).

6. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: a positioning mechanism (5) is arranged right above the conveying mechanism (1), the positioning mechanism (5) comprises fixed seats (51) symmetrically arranged at two sides of the conveying mechanism (1), and a positioning plate (53) is erected between the two fixed seats (51); the fixing seat (51) is provided with a positioning telescopic piece (52), and the movable end of the positioning telescopic piece (52) is connected with the positioning plate (53).

7. The automatic nailing device for the prismatic battery formation nails, according to claim 6, is characterized in that: the bottom end face of the positioning plate (53) is fixedly provided with a guide block (54) matched with the edge of the lithium battery (6); the fixed seat (51) is provided with a waist-shaped fixed hole (511).

8. The automatic nailing device for the prismatic battery formation nails, according to claim 1, is characterized in that: the nail feeding machine (2) comprises a support (27), and the top end of the support (27) is connected with a mounting rack (22) through a support shaft (21); turnover mechanisms are symmetrically fixed at two ends of the mounting rack (22), suction rollers (25) are connected to the inner sides of the turnover mechanisms, and pinholes (251) for containing formed nails are formed in the suction rollers (25); vibration dish (26) are installed to the symmetry on support (27), the top of vibration dish (26) is equipped with curved guide rail (261) along its lateral wall, the exit end of guide rail (261) be connected with stand pipe (262) that pinhole (251) dock mutually.

9. The automatic nailing device for the prismatic battery formation nails, according to claim 8, is characterized in that: the turnover mechanism is connected with a telescopic mechanism, and the suction roller (25) is connected with the movable end of the telescopic mechanism; two pinholes (251) are radially formed in the suction roller (25), and the pinholes (251) and the hollow shaft (47) are arranged in a one-to-one correspondence mode.

10. The automatic nailing device for the prismatic battery formation nails, according to claim 9, is characterized in that: the turnover mechanism is a rotary cylinder (23), and a cylinder seat of the rotary cylinder (23) is fixed on a side supporting plate of the mounting frame (22); the telescopic mechanism is a telescopic cylinder (24), and a cylinder seat of the telescopic cylinder (24) is connected with the movable end of the rotary cylinder.

Technical Field

The invention relates to the field of lithium ion battery production and manufacturing, in particular to an automatic device for forming a nail and automatically inserting the nail after a square battery is injected with liquid.

Background

In the production process of the lithium ion battery, liquid injection is a very important link, and needs to be performed twice or more. And after the liquid injection is finished, the battery enters a subsequent oven to be formed. In order to avoid the volatilization of the electrolyte injected into the battery due to the high temperature of the electrolyte, the actual wetting effect of the battery is influenced, and the quality of the battery is further influenced. Therefore, the formation nail needs to be inserted into the liquid injection port of the battery to temporarily block the liquid injection port of the lithium battery after the liquid injection is finished. After formation, the formed nail can be pulled out, so that gas in the lithium battery can be released conveniently. The insertion of the formed nail is generally performed manually, and has the following disadvantages: firstly, the efficiency is low, and the labor cost is high; secondly, the formed nail is easy to deflect in the nail inserting process, the subsequent pulling-out of the sealing rubber nail is influenced, and the inner wall of the liquid injection port and the outer wall of the sealing rubber nail are scratched, so that the sealing performance of the sealing rubber nail is influenced; thirdly, the nail inserting depth is difficult to control, and the sealing rubber nail cannot be pulled out due to the too deep nail inserting depth, so that the exhaust operation is influenced; too shallow nail penetration will lead to poor sealing and influence on the formation process. Therefore, an automatic nail inserting device for formed nails is urgently needed.

Disclosure of Invention

The invention provides an automatic nail inserting device for square battery formation nails, which can realize efficient and automatic nail inserting operation of formation nails after liquid injection of square batteries.

The technical scheme of the invention is as follows:

an automatic nail inserting device for square battery formation nails comprises a conveying mechanism for conveying lithium batteries, a nail supplying machine fixedly arranged on one side of the conveying mechanism, and a nail inserting mechanism positioned right above the conveying mechanism, wherein the nail inserting mechanism is driven by a driving mechanism to move between the nail supplying machine and the conveying mechanism; the nail inserting mechanism comprises a fixed plate and a driving device arranged on the fixed plate, the fixed plate is connected with a motor frame through a linear guide rail, and the movable end of the driving device is connected with the motor frame; the motor frame is provided with a hollow shaft which is arranged corresponding to a liquid injection port of the lithium battery, a through nail cavity is formed in the hollow shaft, and the top end of the nail cavity is connected with the air compressor through a vacuum suction pipe.

In a further scheme, a shaft motor is mounted on the motor frame and is connected with the hollow shaft through a synchronous belt; be located the hollow shaft outside and be equipped with the bounding wall, the bounding wall fixed mounting is on the motor frame.

In a further scheme, the driving device is an air cylinder or an oil cylinder, and the movable end of the driving device is connected with the motor frame through a floating joint; the hollow shaft is arranged on the motor frame through a bearing.

In a further scheme, the driving mechanism comprises pillars erected at two outer sides of the conveying mechanism, a cross beam and a drag chain are fixedly arranged at the top ends of the pillars in parallel, a screw rod is arranged in the cross beam, a screw rod of the screw rod is connected with a driving motor, and a nut of the screw rod is connected with a fixed plate to drive the fixed plate to move horizontally on the cross beam; the drag chain and the fixed plate are fixedly connected through the connecting plate, and synchronous movement is achieved.

In a further scheme, the conveying mechanism comprises a conveying frame, a conveying chain and a conveying belt arranged on the conveying chain, and battery boxes for loading lithium batteries are fixedly arranged on the conveying belt at intervals.

In a further scheme, a positioning mechanism is arranged right above the conveying mechanism, the positioning mechanism comprises fixed seats symmetrically arranged at two sides of the conveying mechanism, and a positioning plate is erected between the two fixed seats; the fixing seat is provided with a positioning telescopic piece, and the movable end of the positioning telescopic piece is connected with the positioning plate.

According to a further scheme, a guide block matched with the edge of the lithium battery is fixedly arranged on the bottom end face of the positioning plate; the fixing seat is provided with a waist-shaped fixing hole.

In a further scheme, the nail feeding machine comprises a support, the top end of the support is connected with a mounting rack through a support shaft, two ends of the mounting rack are symmetrically fixed with a turnover mechanism, the inner side of the turnover mechanism is connected with a suction roller, and the suction roller is provided with a needle hole for accommodating formed nails; the vibration dish is installed to the symmetry on the support, the top of vibration dish is equipped with curved guide rail along its lateral wall, guide rail's exit end be connected with the stand pipe that the pinhole dock mutually.

According to a further scheme, a telescopic mechanism is connected to the turnover mechanism, and the suction roller is connected to the movable end of the telescopic mechanism; two pinholes are radially formed in the suction roller, and the pinholes and the hollow shaft are arranged in a one-to-one correspondence mode.

Preferably, the turnover mechanism is a rotary cylinder, and a cylinder seat of the rotary cylinder is fixed on a side support plate of the mounting frame; the telescopic mechanism is a telescopic cylinder, and a cylinder seat of the telescopic cylinder is connected with the movable end of the rotary cylinder.

In order to ensure that the formed nails can accurately enter the needle holes on the suction roller, the outlet end of the guide pipe on the nail feeder corresponds to the needle holes, and the inner cavity of the suction roller is connected with a suction pipe, so that the inner cavity of the suction roller generates negative pressure, and the formed nails can just enter the needle holes.

In order to improve the qualification rate of inserting the nail, when inserting the nail, the motor work is through hold-in range area hollow shaft synchronous revolution to make into the nail and produce a revolving force, and then guaranteed to become the nail and be impressed the notes liquid hole when rotatory, improved the shutoff effect of annotating the liquid mouth.

The automatic nail inserting device for the square battery formation nail can replace manual work to efficiently complete nail inserting operation of the formation nail. The device realizes the one-by-one arrangement and feeding of the formed nails through the nail feeding mechanism; the formation needles are sucked into the hollow shaft one by one through the principle of negative pressure adsorption, so that the formation needles are grabbed and positioned; then, the lithium battery is positioned through the positioning mechanism, so that the accuracy of the inserting nail is improved; finally, the hollow shaft is driven by the motor to synchronously rotate, so that the formation nail generates a rotating force to be pressed into the liquid injection hole, and the plugging effect of the liquid injection port is improved.

The device realizes full-automatic nail inserting operation, can insert nails by a plurality of lithium batteries simultaneously, and greatly improves the working efficiency; in addition, the device positions the lithium battery through the positioning mechanism, and realizes the adsorption of the glue nail through the hollow shaft and negative pressure, so that the formed nail is aligned accurately; the formation nail is inserted into the liquid injection port of the lithium battery in a rotating entering mode, the subsequent pulling-out of the sealing rubber nail is not influenced by the vertical insertion, the inner wall of the liquid injection port and the outer wall of the formation nail are not scratched, and the sealing performance of the formation nail is improved; secondly, the rotating speed and time of the shaft motor are controlled, so that all the formed nails are consistent in nailing depth.

Drawings

Figure 1 is a schematic view of the structure of the present invention,

figure 2 is a schematic structural view of the nailing mechanism of the present invention,

figure 3 is a schematic view of the construction of the stapler of the invention,

figure 4 is a schematic view of the positioning mechanism of the present invention,

figure 5 is a schematic view of the installation of the hollow shaft of the present invention,

in the figure: 1-conveying mechanism, 11-conveying frame, 12-conveying chain, 13-conveying belt and 14-battery box;

2-nail feeder, 21-support shaft, 22-mounting rack, 23-rotary cylinder, 24-telescopic cylinder, 25-suction roller, 251-pinhole, 26-vibration disk, 261-guide track, 262-guide tube and 27-support;

3-driving mechanism, 31-beam rail, 32-connecting plate, 33-drag chain, 34-pillar;

4-a nail inserting mechanism, 41-a fixing plate, 42-a linear guide rail, 43-a driving device, 44-a shaft motor, 45-a motor frame, 46-a floating joint, 47-a hollow shaft, 471-a bearing, 48-a synchronous belt and 49-a coaming;

5-a positioning mechanism, 51-a fixed seat, 511-a waist-shaped fixed hole, 52-a positioning telescopic piece, 53-a positioning plate and 54-a guide block;

6-lithium battery, 7-formed nail.

Detailed Description

The present invention will be described in detail below with reference to the drawings and examples, which are preferred embodiments of the present invention, and the present invention is not limited to the embodiments and forms described below.

As shown in fig. 1-5, an automatic nail inserting device for forming square battery nails comprises a conveying mechanism 1 for conveying lithium batteries, a nail feeder 2 fixedly arranged on one side of the conveying mechanism 1, and a nail inserting mechanism 4 positioned right above the conveying mechanism 1, wherein the nail inserting mechanism 4 is driven by a driving mechanism 3 to move between the nail feeder 2 and the conveying mechanism 1, so that nail taking and inserting operations are realized; the nail inserting mechanism 4 comprises a fixing plate 41 and a driving device 43 arranged on the fixing plate 41, the fixing plate 41 is connected with a motor frame 45 through a linear guide rail 42, and the movable end of the driving device 43 is connected with the motor frame 45; install the hollow shaft 47 that corresponds the setting with the notes liquid mouth of lithium cell on the motor frame 45, the nail chamber that link up has been seted up to the inside of hollow shaft 47, the top in nail chamber is passed through the vacuum suction pipe and is connected with the air compressor machine.

Further, as shown in fig. 2, the motor frame 45 is an L-shaped structure, a vertical section of the motor frame is connected to the upper fixing plate 41 and a horizontal section of the motor frame is provided with a shaft motor 44 through a linear guide rail 42, and the shaft motor 44 is connected to the hollow shaft 47 through a synchronous belt 48; a coaming 49 is arranged outside the hollow shaft 47, and the coaming 49 is fixedly arranged on the motor frame 45.

In a further scheme, the driving device 43 is an air cylinder or an oil cylinder, and the movable end of the driving device 43 is connected with a motor frame 45 through a floating joint 46; the hollow shaft 47 is mounted on the motor frame 45 through a bearing 471, and the bearing 471 enables the hollow shaft to rotate more smoothly.

Preferably, the driving device 43 is an air cylinder in this embodiment, and when the air cylinder works, the air cylinder drives the motor frame 45 to move up and down on the fixing plate 41 along the linear guide rail 42. Because the expansion end of cylinder is connected with motor frame 45 through floating joint 46 to reduce and produce the vibration to motor frame 45 because of the unstability of air supply, and then cause to become the nail and produce influences such as drop to absorbing in hollow shaft 47. When the shaft motor 44 works, the shaft motor drives the hollow shaft 47 to synchronously rotate through the synchronous belt 48, so that the formed nails in the shaft motor generate rotating force to accelerate the formed nails to enter the liquid injection port. As shown in fig. 2, two shaft motors 44 are arranged on the motor frame 45, and each shaft motor 44 is connected with two hollow shafts 47 through a synchronous belt 48, so that the working efficiency is improved. This device can insert the nail operation for four lithium cells simultaneously promptly to work efficiency has been improved.

Further, the driving mechanism 3 comprises pillars 34 erected on two outer sides of the conveying mechanism 1, a beam 31 and a drag chain 32 are fixedly arranged at the top ends of the pillars 34 in parallel, a lead screw is arranged in the beam 31, a screw of the lead screw is connected with a driving motor, a nut of the lead screw is connected with the back of the fixing plate 41, and the driving motor drives the fixing plate 41 to horizontally move on the beam 31 when working; the drag chain 32 and the fixed plate 41 are fixedly connected through the connecting plate 32 to realize synchronous movement. The shaft motor, the electric wire of the driving motor, the air pipe of the air cylinder and other components are arranged in the drag chain 33, and the nail inserting mechanism 4 is connected and linked through the connecting plate 32 in the moving process. Avoiding the damage to the electric wire, the air pipe and the like.

Further, the conveying mechanism 1 comprises a conveying frame 11, a conveying chain 12 and a conveying belt 13 which is arranged on the conveying chain 12 and moves together, and battery boxes 14 for loading the lithium batteries 6 are fixedly arranged on the conveying belt 13 at intervals. The conveying chain 12 drives the conveying belt 13 to move intermittently through the driving of the motor, so that the conveying chain moves intermittently with the battery box 14, and the operation of installing and forming the filling opening of the lithium battery arranged in the conveying chain is realized.

In a further scheme, a positioning mechanism 5 is arranged right above the conveying mechanism 1, the positioning mechanism 5 comprises fixed seats 51 symmetrically arranged on two sides of the conveying mechanism 1, and a positioning plate 53 is erected between the two fixed seats 51; a positioning telescopic piece 52 is mounted on the fixed seat 51, and the movable end of the positioning telescopic piece 52 is connected with the positioning plate 53. In the present embodiment, the positioning extension member 52 is preferably a cylinder or an oil cylinder, and the extension movement of the positioning extension member drives the positioning plate 53 to perform the lifting movement.

In a further scheme, a guide block 54 matched with the edge of the lithium battery 6 is fixedly arranged on the bottom end surface of the positioning plate 53; the fixing seat 51 is provided with a waist-shaped fixing hole 511.

The fixed seat 51 is in an L-shaped structure, and the vertical section of the fixed seat passes through the waist-shaped fixed hole 511 by adopting bolts to be installed on the conveying frame 11 of the conveying mechanism 1; the horizontal sections of the fixing base 51 are symmetrically positioned at two sides of the battery box 14. For the sake of aesthetic appearance, the vertical section and the horizontal section of the fixing base 51 are connected by an arc section. Because the fixing base 51 is provided with the multirow waist shape fixed orifices 511, then can adjust the mounting height of fixing base 51 according to the size of dimensions of lithium cell 6, make locating plate 53 push down the back, carry out the micro-adjustment back through guide block 54 to the battery, just in time block in the top of lithium cell to fix it, make things convenient for nail inserting mechanism 4 to seal up into the nail to the notes liquid mouth of lithium cell.

Further, the nail feeder 2 comprises a bracket 27, and the top end of the bracket 27 is connected with a mounting rack 22 through a support shaft 21; turnover mechanisms are symmetrically fixed at two ends of the mounting rack 22, suction rollers 25 are connected to the inner sides of the turnover mechanisms, and pinholes 251 for containing formed nails are formed in the suction rollers 25; the vibration disc 26 is symmetrically installed on the support 27, an arc-shaped guide rail 261 is arranged at the top end of the vibration disc 26 along the side wall of the vibration disc, and a guide pipe 262 connected with the pinhole 251 is connected to the outlet end of the guide rail 261.

According to a further scheme, a telescopic mechanism is connected to the turnover mechanism, and the suction roller 25 is connected to the movable end of the telescopic mechanism; two pinholes 251 are radially arranged on the suction roller 25, and the pinholes 251 and the hollow shaft 47 are arranged in a one-to-one correspondence manner.

Preferably, the turnover mechanism is a rotary cylinder 23, and a cylinder seat of the rotary cylinder is fixed on a side support plate of the mounting frame 22; the telescopic mechanism is a telescopic cylinder 24, and a cylinder seat of the telescopic cylinder is connected with the movable end of the rotary cylinder.

In order to ensure that the formed nails can accurately enter the needle holes on the suction roller, the outlet end of the guide pipe 262 on the nail feeder corresponds to the needle hole 251, and the inner cavity of the suction roller 25 is connected with a suction pipe, so that the inner cavity of the suction roller generates negative pressure, and the formed nails can just enter the needle holes.

As shown in fig. 3, the vibrating plate 26 and the turnover mechanism are provided in pairs, two in this embodiment. Two pinholes 251 are radially arranged on the suction roller 25, the first pinhole 251 on the suction roller 25 is adjusted through a telescopic cylinder to be connected with the outlet end of a guide pipe 262 on a vibration disc 26, and the suction pipe is opened to enable the inner cavity of the suction roller 25 to form negative pressure, so that the formed nails 7 enter the pinholes; then horizontally moving the suction roller 25 through the telescopic cylinder to connect a second pinhole on the suction roller with the outlet end of the guide pipe 262 on the corresponding vibration disc 26, and leading in another formed nail 7; then the rotating cylinder works to drive the suction roller to rotate ninety degrees upwards, so that the formed nails which are originally horizontally placed are vertical to the position right above the suction roller.

The working process of the device is as follows:

the nail feeding machine arranges the formed nails manually placed in the vibration disc into a sequence, arranges the formed nails along the length direction of the guide rail by means of vibration thrust, and sends the formed nails to the radial profiling needle holes of the suction roller after passing through the guide rail and the guide pipe so as to be just clamped; the turnover mechanism drives the suction roller to rotate ninety degrees, so that the formed nails which are originally horizontally placed are in a vertical state and are vertical to the position right above the suction roller. The conveying mechanism moves one station, so that after a battery box with the lithium battery reaches the position of the positioning mechanism, the positioning plate on the positioning mechanism moves downwards, the lithium battery is subjected to micro position correction through the guide block at the bottom end of the positioning mechanism and then is pressed at the top end of the lithium battery, and the positioning work of the lithium battery is completed. The nail inserting mechanism moves to a nail taking station right above the nail feeder, the air compressor is started, the hollow shaft generates upward suction, so that formed nails clamped on the suction roller are sucked into the hollow shaft (as shown in figure 5), and 4 formed nails are sucked each time; then the formed nails are moved to a nail inserting station at the right end, namely, the formed nails are positioned right above the positioning mechanism, the driving device drives the motor frame to drive the hollow shaft to move downwards together and contact with a liquid injection port of the lithium battery, the air compressor is closed, the negative pressure disappears, and the formed nails fall into the liquid injection port of the lithium battery from the hollow shaft under the action of gravity; meanwhile, the motor works, the hollow shaft is driven to rotate synchronously through the synchronous belt, and the formed nail is spun into a liquid injection hole of the lithium battery to be plugged. And then the next nail inserting cycle is carried out.

The embodiments set forth in the description of the present invention are merely preferred examples for the purpose of illustration and are not intended to limit the scope of the invention, so it is to be understood that other equivalents and modifications may be made without departing from the spirit and scope of the invention.