CN209954536U

CN209954536U - Positioning device

Info

Publication number: CN209954536U
Application number: CN201920814128.XU
Authority: CN
Inventors: 陈帅; 罗嗣祥; 骆帅; 蔡海生; 周俊杰
Original assignee: Guangdong Lyric Robot Intelligent Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-17
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a positioning device, which comprises a jig, a first positioning mechanism and a second positioning mechanism; the jig is used for bearing the battery cell; the positioning end of the first positioning mechanism and the positioning end of the second positioning mechanism are used for positioning the battery cell borne by the jig respectively, and the moving direction of the positioning end of the first positioning mechanism is opposite to that of the positioning end of the second positioning mechanism. This application is fixed a position simultaneously to the electric core that the tool bore from opposite directions through first positioning mechanism and second positioning mechanism's cooperation, realizes the accurate positioning to electric core.

Description

Positioning device

Technical Field

The utility model relates to a lithium cell automated production technical field, specificly relate to a positioner.

Background

In the production process of the lithium battery, the side edges of the battery cell need to be subjected to edge cutting, edge folding and edge ironing pressure maintaining to form the battery cell, and the battery cell needs to be positioned before edge cutting in order to ensure the accurate operation of the edge cutting, edge folding and edge ironing pressure maintaining processes; in the prior art, the positioning accuracy before the edge cutting of the battery core is insufficient, so that the subsequent edge cutting, edge folding and edge ironing pressure maintaining processes are influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a positioning device.

A positioning device includes: the fixture comprises a fixture, a first positioning mechanism and a second positioning mechanism; the jig is used for bearing the battery cell; the positioning end of the first positioning mechanism and the positioning end of the second positioning mechanism are used for positioning the battery cell borne by the jig respectively, and the moving direction of the positioning end of the first positioning mechanism is opposite to that of the positioning end of the second positioning mechanism.

According to an embodiment of the present invention, the first positioning mechanism includes a first positioning driving member and a first positioning member; the output end of the first positioning driving piece is connected with the first positioning piece, and the first positioning driving piece drives the first positioning piece to move towards one side edge of the battery cell.

According to an embodiment of the present invention, the first positioning mechanism further comprises a first positioning adjustment member; the first positioning adjusting piece is used for adjusting the height of the first positioning piece relative to the battery core.

According to an embodiment of the present invention, the second positioning mechanism includes a second positioning driving member and a second positioning member; the output end of the second positioning driving piece is connected with the second positioning piece, and the second positioning driving piece drives the second positioning piece to move towards the other side edge of the battery cell.

According to an embodiment of the present invention, the second positioning mechanism further comprises a buffer member; the output end of the second positioning driving piece is connected with the second positioning piece through the buffer piece.

According to an embodiment of the present invention, the second positioning mechanism further comprises a second positioning adjustment member; the second positioning adjusting piece is used for adjusting the height of the second positioning piece relative to the battery core.

According to an embodiment of the present invention, the jig includes a bearing plate, a clamping plate and a connecting rod locking member; the clamping plate is positioned above the bearing plate, and the connecting rod locking piece is connected with the clamping plate; the battery cell is borne on the bearing plate, and the connecting rod locking piece drives the clamping plate to move relative to the bearing plate, so that the clamping plate is matched with the bearing plate to clamp and loosen the battery cell.

According to an embodiment of the present invention, the device further comprises a jig opening and closing mechanism; the jig opening and closing mechanism is positioned above the jig and is connected with the connecting rod locking piece; the jig opening and closing mechanism drives the connecting rod locking piece to control the movement of the clamping plate.

According to an embodiment of the present invention, the jig opening and closing mechanism includes a pulling-up driving member and a pulling-up member; the output end of the pulling-up driving piece is connected with the pulling-up piece, and the pulling-up driving piece drives the pulling-up piece to move towards the connecting rod locking piece; the pulling piece is detachably connected with the connecting rod locking piece.

According to an embodiment of the present invention, the tool opening and closing mechanism further comprises a pressing driving member and a pressing member; the output that pushes down the driving piece is connected with the lower pressure member, pushes down the driving piece drive and pushes down the piece and remove towards the connecting rod retaining member, pushes down piece and connecting rod retaining member butt.

Compared with the prior art, this application fixes a position simultaneously to the electric core that the tool bore from opposite directions through first positioning mechanism and second positioning mechanism's cooperation, realizes the accurate positioning to electric core.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of a positioning device in this embodiment;

FIG. 2 is a schematic structural diagram of a first positioning mechanism in this embodiment;

FIG. 3 is a schematic structural diagram of a second positioning mechanism in the present embodiment;

FIG. 4 is an enlarged view of the point A of FIG. 3 in the present embodiment;

FIG. 5 is a schematic structural diagram of another view angle of the positioning apparatus in the present embodiment;

fig. 6 is an enlarged view of a portion B of fig. 5 in this embodiment.

Description of reference numerals:

1. a jig; 11. a carrier plate; 12. a splint; 13. connecting a locking piece; 131. a lower plate; 1331. a hinge position; 132. a connecting rod locking structure; 1321. a middle connecting rod; 1322. a first link; 1323. a second link; 1324. a third link; 1325. a fourth link; 1326. a fifth link; 1327. a sixth link; 1328. a limiting table; 1329. pulling up the guide pillar; 133. an upper plate; 134. an output pipe; 135. an output shaft; 14. pressing a buffer piece; 141. a second elastic member; 142. a second guide post; 2. a first positioning mechanism; 21. a first positioning drive member; 211. a base plate; 212. a screw bearing plate; 213. a screw pair; 213. a slide rail; 215. a sliding table; 216. a shaft coupling; 217. a drive motor; 22. a first positioning member; 23. a first positioning adjustment member; 231. adjusting the support plate; 232. adjusting the sliding block; 233. adjusting the fixed block; 234. an adjusting screw; 235. dividing the head into thousands; 24. a first positioning bracket; 241. a support frame; 242. a support plate; 25. a first displacement detecting member; 251. a first displacement sensor; 252. a first displacement plate; 3. a second positioning mechanism; 31. a second positioning drive; 32. a second positioning member; 33. a buffer member; 331. a first buffer block; 332. a first elastic member; 333. a guide sleeve; 334. a second buffer block; 335. a third displacement detecting member; 3351. a second displacement sensor; 3352. a second displacement plate; 34. a second positioning adjustment member; 35. a second positioning bracket; 36. a second displacement detecting member; 4. a jig opening and closing mechanism; 41. pulling up the driving member; 42. pulling up the piece; 43. pressing down the driving member; 44. a push-down member; 5. the tool opens and shuts the response piece.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions of the embodiments of the present invention as "first", "second", etc. are provided for descriptive purposes only, not specifically referring to the order or sequence, but also not for limiting the present invention, and are provided for distinguishing between components or operations described in the same technical terms, and are not intended to indicate or imply relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings as follows:

referring to fig. 1, fig. 1 is a schematic structural diagram of a positioning device in this embodiment. The positioning device in this embodiment includes a fixture 1, a first positioning mechanism 2 and a second positioning mechanism 3. Tool 1 is used for bearing electric core, and the electric core that tool 1 bore is fixed a position respectively to the location end of first positioning mechanism 2 and the location end of second positioning mechanism 3, and the moving direction of the 2 location ends of first positioning mechanism and the moving direction of the 3 location ends of second positioning mechanism are in opposite directions.

This application is fixed a position simultaneously from the position in opposite directions to the electric core that tool 1 bore through the cooperation of first positioning mechanism 2 and second positioning mechanism 3, realizes the accurate positioning to electric core.

With continuing reference to fig. 1 and 2, fig. 2 is a schematic structural diagram of the first positioning mechanism in this embodiment. Further, the first positioning mechanism 2 includes a first positioning driving member 21, a first positioning member 22, a first positioning adjusting member 23, and a first positioning bracket 24. The first positioning driving member 21 is disposed on the first positioning support 24, an output end of the first positioning driving member 21 is connected to the first positioning member 22, and the first positioning driving member 21 drives the first positioning member 22 to move towards one side edge of the battery cell and position one side edge of the battery cell. The first positioning adjuster 23 is used to adjust the height of the first positioning member 22 relative to the cell.

Specifically, the first positioning bracket 24 is located at one side of the jig 1, and is used for bearing and supporting the first positioning driving member 21. The first positioning bracket 24 includes a supporting frame 241 and a supporting plate 242, the supporting plate 242 is disposed at the upper end of the supporting frame 241, the supporting plate 242 is perpendicular to the supporting frame 241, and the supporting plate 242 is parallel to the battery cell in this embodiment.

The first positioning driving member 21 is disposed on the supporting plate 242, and the first positioning driving member 21 includes a bottom plate 211, two lead screw bearing plates 212, a lead screw pair 213, a sliding rail 214, a sliding table 215, a shaft connector 216, and a driving motor 217. Wherein, the bottom plate 211 is laid on the supporting plate 242; the two lead screw bearing plates 212 are both positioned on the upper surface of the bottom plate 211 and are respectively and vertically arranged at two ends of the bottom plate 211; two ends of a screw of the screw pair 213 are respectively rotatably connected with the two screw bearing plates 212; the sliding rail 214 is arranged on the bottom plate 211 and is positioned at one side of the screw rod pair 213, and the sliding rail 214 is parallel to the screw rod pair 213; the sliding table 215 is connected to the sliding rail 214 in a sliding manner and is connected with a nut of the screw rod pair 213, and when the screw rod of the screw rod pair 213 rotates, the nut of the screw rod pair 213 moves linearly and drives the sliding table 215 to slide on the sliding rail 214; one end of the screw pair 213 passes through the screw bearing plate 212 and is connected with the output end of the driving motor 217 through the shaft connector 216. The driving motor 217 drives the screw rod of the screw rod pair 213 to rotate through the shaft connector 216, so as to drive the sliding table 215 to slide on the sliding rail 214, and the driving motor 217 is controlled to drive the screw rod pair 213, so as to control the moving position of the sliding table 215 on the sliding rail 214, so that the sliding table 215 can be stopped at any position on the sliding rail 214.

One end of the first positioning element 22 is disposed on the sliding table 215, and one end of the first positioning element faces the battery cell carried by the fixture 1. The driving motor 217 drives the sliding table 215 to move towards the battery cell and drives the first positioning element 22 to move towards one side edge of the battery cell to position one side edge of the battery cell. The driving motor 217 can drive the sliding table 215 to stop at any position of the sliding rail 214, and the first positioning element 22 is disposed on the sliding table 215, that is, by controlling the driving motor 217, the first positioning element 22 can stop at any position relative to the electric core, and when the size of the electric core to be positioned is changed, the position of the first positioning element 22 when the electric core is positioned is adjusted in an adaptive manner, that is, the advancing distance of the first positioning element 22 when the electric core is positioned is increased, so that the positioning of the electric cores with different sizes is realized. The first positioning member 22 in this embodiment is a push plate. The first positioning member 22 is parallel to the battery cell, and an end of the first positioning member 22 faces a side of the battery cell.

The first positioning adjustment member 23 includes an adjustment support plate 231, an adjustment slider 232, an adjustment fixing block 233, and an adjustment screw 234. Adjust the backup pad 231 and locate slip table 215 perpendicularly, adjust slider 232 sliding connection in adjusting the backup pad 231, the one end of first locating piece 22 is fixed on adjusting slider 232, adjust the fixed upper end of locating adjusting the backup pad 231 of fixed plate 233, the both ends of adjusting screw 234 respectively with adjust fixed plate 233 and adjusting slider 232 spiro union, through adjusting screw 234 spiro union in the degree of depth of adjusting fixed plate 233, and then adjust adjusting slider 232 for the height of slip table 215, thereby reach the purpose of adjusting first locating piece 22 for the height of slip table 215. So, when tool 1 bore the height or the thickness change of electric core, adjust first locating piece 22's height through first location regulating part 23 for first locating piece 22 is just to the side of electric core all the time, when guaranteeing that first locating piece 22 fixes a position electric core, and electric core atress is even, guarantees the accuracy of location. Preferably, the first positioning adjustment member 23 further includes a dividing head 235, the dividing head 235 is disposed on the adjustment fixing plate 233 and is parallel to the adjustment screw 234, and the accuracy of adjustment of the adjustment screw 234 is ensured by the setting of the dividing head 235.

Referring back to fig. 2, further, the first positioning mechanism 2 further includes a first displacement detecting member 25. The first displacement detecting element 25 includes two first displacement sensors 251 and a first displacement plate 252, the two first displacement sensors 251 are sequentially disposed at intervals along the long side direction of the bottom plate 211 on one side of the bottom plate 211, the two first displacement sensors 251 face the sliding table 215, one end of the first displacement plate 252 is disposed on the sliding table 215, and the other end of the first displacement plate 252 extends toward the first displacement sensor 251. When the sliding table 215 moves, the first displacement plate 252 is driven to sequentially pass through the two first displacement sensors 251, and the two first displacement sensors 251 can detect two moving positions of the first displacement plate 252, that is, the moving position of the sliding table 215, so that the two moving positions of the first positioning element 22 can be calculated. In practical application, when the moving position of the first positioning element 22 detected by the first displacement sensor 251 arranged close to the battery cell is a positioning point, that is, when the first displacement sensor 251 detects the first displacement plate 252, the first positioning element 22 reaches a target position for positioning the battery cell, and at this time, the first positioning element 22 stops driving; the other first displacement sensor 251 is set as a reset point, which means that when the first displacement sensor 251 detects the first displacement plate 252, the first positioning member 22 is away from the position where the battery cell is positioned. Therefore, the driving motor 217 is controlled to drive the first positioning element 22 by the signals transmitted by the first displacement sensor 251 of the positioning point and the reset point, so as to realize the precise positioning movement of the first positioning element 22, and further ensure the positioning accuracy of the first positioning element 22. The first displacement sensor in this embodiment may be a photoelectric sensor.

With continuing reference to fig. 1, 3 and 4, fig. 3 is a schematic structural diagram of a second positioning mechanism in the present embodiment, and fig. 4 is an enlarged view of a point a of fig. 3 in the present embodiment; further, the second positioning mechanism 3 includes a second positioning driving member 31, a second positioning member 32, a buffer member 33, a second positioning adjusting member 34, a second positioning bracket 35, and a second displacement detecting member 36. Second location driving piece 31 is located second location support 35, and the output of second location driving piece 31 is connected with second setting element 32, and second location driving piece 31 drive second setting element 32 and remove towards the opposite side of electric core, fixes a position the opposite side of electric core. The output end of the second positioning driving element 31 is connected with the second positioning element 32 through the buffer element 33, so that the hard damage of the second positioning element 32 when positioning the battery core is reduced. The second positioning adjustment member 34 is used to adjust the height of the second positioning member 32 relative to the cell. The second displacement detecting member 36 is used for position detection when the second positioning member 32 is displaced, so as to provide precise control over the second positioning member 32.

Specifically, the second positioning bracket 35 is located on the other side of the jig 1, and is used for bearing and supporting the second positioning driving member 31. The second positioning bracket 35 in this embodiment is identical to the first positioning bracket 24 in structure, and is not described here. The structure and the operation principle of the second positioning driving member 31 are the same as those of the first positioning driving member 21, and are not described herein again. When the second positioning driving member 31 is disposed on the second positioning bracket 35, the bottom plate of the second positioning driving member 31 is vertically disposed at the middle position of the supporting plate of the second positioning bracket 35, and the sliding table of the second positioning driving member 31 is exposed on the supporting plate of the second positioning bracket 35. One end of the second positioning element 32 is disposed on the sliding table of the second positioning driving element 31, and the other end of the second positioning element is opposite to the other side edge of the battery cell, the second positioning driving element 31 drives the second positioning element 32 to move towards the other side edge of the battery cell, and the second positioning element 32 positions the other side edge of the battery cell. The second positioning member 32 in this embodiment is also a push plate. The second positioning part 32 is parallel to the battery core, and the second positioning part 32 is opposite to the other side edge of the battery core. Preferably, the second positioning member 32 is sized and shaped to conform to the first positioning member 22. Preferably, the second positioning element 32 and the first positioning element 22 are located in the same plane, and when the first positioning element 22 and the second positioning element 32 move in opposite directions and position two opposite sides of the battery cell respectively, the battery cell is uniformly stressed and the positioning is more accurate. In this embodiment, the side edge of the battery cell is a long side edge of the plate-shaped battery cell.

The structure and the operation principle of the second positioning adjustment member 34 are the same as those of the first positioning adjustment member 23, and the structure and the operation principle of the second displacement detection member 36 are the same as those of the first displacement detection member 25, which will not be described herein again.

The buffer 33 includes a first buffer block 331, a first elastic element 332, a first guide post (not shown), a guide sleeve 333 and a second buffer block 334. The second positioning element 32 is connected with one end of the first buffer block 331, and the first guide pillar is arranged at the other end of the first buffer block 331; one end of the second buffer block 334 is connected with the adjusting slide block of the second positioning adjusting piece 34, and the guide sleeve 333 is arranged at the other end of the first buffer block 331; the guide sleeve 333 is sleeved outside the first guide pillar, and the guide sleeve 333 is connected with the first guide pillar in a sliding manner; the first elastic element 232 is sleeved outside the first guide post, and has one end connected to the first buffer block 331 and the other end connected to an end of the guide sleeve 333 facing the first buffer block 331. When first setting element 22 and second setting element 32 fix a position electric core, both can and electric core meeting hard contact, form the buffering through the first elastic component 332 that sets up on second setting element 32, reduce the damage that second setting element 32 and electric core hard contact caused electric core. Preferably, the buffer member 33 further includes a third displacement detecting member 335. The third displacement detecting element 335 includes a second displacement sensor 3351 and a second displacement plate 3352, the second displacement sensor 3351 is disposed on the second buffer block 334, one end of the second displacement plate 3352 is disposed on the first buffer block 331, and the other end of the second displacement plate 3352 faces the second displacement sensor 3351 and is adjacent to the second displacement sensor 3351. The first elastic member 332 in this embodiment is a spring, and the second displacement sensor 3351 can be a photoelectric sensor.

When positioning the battery cell, the first positioning driving part 21 drives the first positioning part 22 to move towards one long side of the battery cell, and the first positioning part 22 reaches the positioning position of the battery cell, and then the second positioning driving part 31 drives the second positioning part 32 to move towards the other long side of the battery cell, and the second positioning part 32 abuts against the other side of the battery cell, and continuously pushes the battery cell to move towards the position of the first positioning part 22, so that the first positioning part 22 and the second positioning part 32 position the battery cell from opposite directions, respectively, when the first elastic part 232 is compressed, that is, when the second displacement sensor 3351 detects a signal, it is described that the first positioning part 22 and the second positioning part 32 form a clamping state on the battery cell, and at this time, the accurate positioning is completed.

With continuing reference to fig. 1 and 5, fig. 5 is a schematic structural view of another perspective of the positioning device in the present embodiment; further, the fixture 1 includes a carrier 11, a clamp 12, a rod locking member 13 and a press-fit buffer 14. The clamping plate 12 is positioned above the loading plate 11, and the link locker 13 is coupled to the clamping plate 12. The battery cell is supported on the bearing plate 11, and the connecting rod locking member 13 drives the clamping plate 12 to move relative to the bearing plate 11, so that the clamping plate 12 cooperates with the bearing plate 11 to clamp and release the battery cell. The pressing buffer 14 has two ends respectively connected to the loading plate 11 and the clamping plate 12, and buffers the clamping plate 12 when pressing the battery cell.

Specifically, the link locker 13 includes a lower plate 131, a link locker 132, an upper plate 133, an output lever 134, and an output tray 135. The lower plate 131 is connected with the clamping plate 12, the upper plate 133 is positioned above the lower plate 131, two ends of the connecting rod locking structure 132 are respectively hinged to the lower plate 131 and the upper plate 133, one end of the output rod 134 penetrates through the upper plate 133 and then is connected with the connecting rod locking structure 132, the other end of the output rod 134 is connected with the output disc 135, and the output rod 134 is connected with the upper plate 133 in a sliding mode. The link lock structure 132 has a movement locking characteristic that the upper plate 133 can be synchronously moved down and raised when the output rod 134 presses and pulls up the link lock structure 132, and the upper plate 133 is synchronously stopped without sliding when the output rod 134 stops pressing and pulling up. The pressing and pulling-up control of the output rod 134 to the connecting rod locking structure 132 further controls the clamping and releasing states of the clamping plate 12 to the battery cell carried by the bearing plate 11.

The press-fit buffer 14 includes a second elastic member 141 and a second guide post 142. The number of the second elastic elements 141 and the number of the second guide posts 142 are four, and the four second guide posts 142 are perpendicular to four corners of the supporting board 11. One end of each second guide post 142 is fixedly connected to the supporting plate 11, the other end thereof passes through the clamping plate 12 and then is connected to the lower plate 131 of the connecting locking member 13, and the second guide posts 142 are slidably connected to the clamping plate 12. The four second elastic members 141 are respectively sleeved outside the four second guide posts 142, one end of each second elastic member 141 is connected to the bearing plate 11, and the other end thereof is connected to the clamping plate 12. The pressing process of the clamping plate 12 is buffered by the second elastic member 141, and the second elastic member 141 in this embodiment is a spring.

So, carry out accurate back at first positioning mechanism 2 and second positioning mechanism 3 to electric core, through connecting rod retaining member 13 drive splint 12, cooperation loading board 11 makes electric core be in the state that stabilizes, guarantees that the accurate positioning of electric core in tool 1 can not change because of the removal of tool 1.

With continued reference to fig. 6, fig. 6 is an enlarged view of the portion B of fig. 5 in this embodiment. Further, the link locking structure 132 includes a middle link 1321, a first link 1322, a second link 1323, a third link 1324, a fourth link 1325, a fifth link 1326, and a sixth link 1327. Two ends of the middle link 1321 are hinged to one end of the first link 1322 and one end of the second link 1323, the other end of the first link 1322 is hinged to one end of the third link 1324 and one end of the fourth link 1325, the other end of the second link 1323 is connected to one end of the fifth link 1326 and one end of the sixth link 1327, the other end of the third link 1324 and the other end of the fifth link 1326 are hinged to the lower surface of the upper plate 133, the other end of the fourth link 1325 and the other end of the sixth link 1327 are hinged to the upper surface of the lower plate 131, and one end of the output rod 134, which is far away from the output disc 135, is connected to the middle portion of the middle link 1321. Preferably, two hinge sites 1331 are respectively formed on the lower surface of the upper plate 133 and the upper surface of the lower plate 131, and the third, fifth, fourth and

sixth links

1324, 1326, 1325 and 1327 are respectively hinged to the corresponding hinge sites 1331. Preferably, the connecting rod locking structure 132 further comprises a limiting platform 1328, and the limiting platform 1328 is disposed on the lower plate 131 and located below the middle connecting rod 1321 to prevent the middle connecting rod 1321 from being pressed down excessively. Preferably, the connecting rod locking structure 132 further includes four pulling-up guide posts 1329, one end of each of the four pulling-up guide posts 1329 is vertically disposed at four corners of the lower surface of the upper plate 133, and the other end of each of the four pulling-up guide posts 1329 is slidably connected to four corners of the lower plate 131 to guide the downward pressing and upward pulling of the connecting rod locking structure 132.

Referring to fig. 1 and 5 again, further, the positioning device in this embodiment further includes a jig opening and closing mechanism 4. The jig opening and closing mechanism 4 is positioned above the jig 1 and is connected with the connecting rod locking piece 13; the jig opening and closing mechanism 4 drives the connecting rod locking piece 13 to control the movement of the clamping plate 12. The jig opening and closing mechanism 4 includes a pull-up driving member 41, a pull-up member 42, a push-down driving member 43, and a push-down member 44. The output end of the pulling-up driving member 41 is connected with the pulling-up member 42, the pulling-up driving member 41 drives the pulling-up member 42 to move towards the connecting rod locking member 13, and the pulling-up member 41 is detachably connected with the connecting rod locking member 13. The output end of the push-down driving member 43 is connected to the push-down member 44, and the push-down driving member 43 drives the push-down member 44 to move toward the link locker 13 and brings the push-down member 44 into abutment with the link locker 13.

In a specific application, the pulling driving member 41 may be disposed on the supporting plate of the second positioning bracket 35. The structure and the operation principle of the lifting driving member 41 are the same as those of the first positioning driving member 21, and are not described herein again. The bottom plate of the pulling driving member 41 is vertically arranged at one end of the supporting plate of the second positioning bracket 35 close to the jig 1. The pulling-up member 42 is provided on a slide table of the pulling-up driving member 41 and is located above the output disc 135. The pull-up drive 41 drives the pull-up member 42 to move linearly relative to the output disc 135. The lifting member 42 is a pneumatic gripper that grips the output tray 135 and is driven by the lifting member 41 to lift up, thereby lifting the output rod 134. The pressing driving member 43 is disposed on the sliding table of the stretching driving member 41 and located above the output disc 135, the pressing member 44 faces the output disc 135, and the pressing driving member 43 drives the pressing member 44 to move downward and continuously press after abutting against the output disc 135, so as to drive the output rod 134 to press downward, so that the clamping plate 12 clamps the electric core. The push-down driving member 43 in this embodiment may be a cylinder. Preferably, the tension member 42 is coaxially disposed with the down drive member 43. Through the setting of tool mechanism 4 that opens and shuts, realize the automatic fixation of electric core around the accurate positioning, when needs are fixed a position electric core, it rises to draw the drive piece 41 drive to draw and rise 42, and then drive the output rod 134 and rise, make splint 12 keep away from electric core, electric core is in portable state, then first positioning mechanism 2 and second positioning mechanism 3 fix a position electric core, after the location is accomplished, push down drive piece 43 drive pushing down 44 downstream, and then drive output rod 134 and push down, make splint 12 and loading board 11 cooperate the centre gripping electric core, make electric core firm on loading board 11, keep the accurate positioning state of electric core in tool 1, can not change because of the removal of tool 1.

Referring to fig. 1 again, further, the positioning device in this embodiment further includes a jig opening/closing sensing element 5. The tool open/close sensor 5 is disposed on the bottom plate of the pull-up driving member 41 and faces the tool 1, and detects the open/close state of the tool 1 by detecting the position of the upper plate 131 relative to the tool open/close sensor 5, in this embodiment, the tool open/close sensor 5 may be a distance sensor.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A positioning device is characterized by comprising a jig (1), a first positioning mechanism (2) and a second positioning mechanism (3); the jig (1) is used for bearing the battery cell; the positioning end of the first positioning mechanism (2) and the positioning end of the second positioning mechanism (3) are used for positioning the battery cell borne by the jig (1) respectively, and the moving direction of the positioning end of the first positioning mechanism (2) is opposite to that of the positioning end of the second positioning mechanism (3).

2. The positioning device according to claim 1, characterized in that the first positioning mechanism (2) comprises a first positioning drive (21) and a first positioning member (22); the output end of the first positioning driving piece (21) is connected with the first positioning piece (22), and the first positioning driving piece (21) drives the first positioning piece (22) to move towards one side edge of the battery core.

3. The positioning device according to claim 2, characterized in that the first positioning means (2) further comprise a first positioning adjustment (23); the first positioning adjuster (23) is used for adjusting the height of the first positioning piece (22) relative to the battery cell.

4. The positioning device according to claim 1, wherein the second positioning mechanism (3) comprises a second positioning drive (31) and a second positioning element (32); the output end of the second positioning driving piece (31) is connected with the second positioning piece (32), and the second positioning driving piece (31) drives the second positioning piece (32) to move towards the other side of the battery core.

5. The positioning device according to claim 4, characterized in that said second positioning means (3) further comprise a buffer (33); the output end of the second positioning driving piece (31) is connected with the second positioning piece (32) through the buffer piece (33).

6. The positioning device according to claim 4, characterized in that the second positioning mechanism (3) further comprises a second positioning adjustment (34); the second positioning adjusting part (34) is used for adjusting the height of the second positioning part (32) relative to the battery cell.

7. The positioning device according to any one of claims 1 to 6, wherein the jig (1) comprises a bearing plate (11), a clamping plate (12) and a connecting rod locking piece (13); the clamping plate (12) is positioned above the bearing plate (11), and the connecting rod locking piece (13) is connected with the clamping plate (12); the battery cell is borne on the bearing plate (11), and the connecting rod locking piece (13) drives the clamping plate (12) to move relative to the bearing plate (11), so that the clamping plate (12) is matched with the bearing plate (11) to clamp and loosen the battery cell.

8. The positioning device according to claim 7, further comprising a jig opening and closing mechanism (4); the jig opening and closing mechanism (4) is positioned above the jig (1) and is connected with the connecting rod locking piece (13); the jig opening and closing mechanism (4) drives the connecting rod locking piece (13) to control the movement of the clamping plate (12).

9. The positioning device according to claim 8, wherein the jig opening and closing mechanism (4) comprises a pulling-up driving member (41) and a pulling-up member (42); the output end of the pulling and lifting driving piece (41) is connected with the pulling and lifting piece (42), and the pulling and lifting driving piece (41) drives the pulling and lifting piece (42) to move towards the connecting rod locking piece (13); the pulling piece (42) is detachably connected with the connecting rod locking piece (13).

10. The positioning device according to claim 8, wherein the jig opening and closing mechanism (4) further comprises a pressing-down driving member (43) and a pressing-down member (44); the output of pushing down driving piece (43) with push down piece (44) and connect, push down driving piece (43) drive push down piece (44) towards connecting rod retaining member (13) remove, push down piece (44) with connecting rod retaining member (13) butt.