CN218498130U

CN218498130U - Battery cover plate positioning jig

Info

Publication number: CN218498130U
Application number: CN202222066385.4U
Authority: CN
Inventors: 张�尘
Original assignee: Jiaxing Yunda Intelligent Technology Co ltd
Current assignee: Jiaxing Yunda Intelligent Technology Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-02-17
Anticipated expiration: 2032-08-08

Abstract

The utility model relates to a battery apron positioning jig, include: the battery cover plate positioning device comprises a positioning support, positioning bosses used for positioning a battery cover plate are respectively arranged at two ends of the top surface of the positioning support in the length direction, positioning surrounding parts are respectively arranged at the edges of the two ends of the top surface in the length direction, and the positioning surrounding parts are correspondingly arranged around the positioning bosses; the surface of the positioning boss is provided with a bearing table, and a lifting driving structure is arranged in the positioning support, is connected with the bearing table and is used for driving the bearing table to ascend and protrude out of the surface of the positioning boss so as to bear the sealing ring; and the bearing table can descend under the driving action of the lifting driving structure, so that the sealing ring is embedded into the mounting hole of the battery cover plate.

Description

Battery cover plate positioning jig

Technical Field

The utility model relates to a battery production technical field especially relates to battery apron positioning jig.

Background

Lithium ion batteries have become the preferred batteries for portable electronic products, electric vehicles, and energy storage due to their advantages of high capacity density, high specific energy, long cycle life, and the like, and have become more and more widely used. The lithium ion battery mainly comprises the following parts: the battery comprises a battery core obtained by winding a positive plate, an isolating film and a negative plate which are sequentially superposed, a shell sleeved outside the battery core, a battery cover plate positioned at the top of the shell, a first pole column and a second pole column which are arranged on the battery cover plate, and a liquid injection hole for injecting electrolyte.

Because a large amount of chemical substances are filled in the lithium ion battery, a large amount of mixed gas is generated in the process of charging and discharging the battery, so that pressure is continuously accumulated in the battery, and if the pressure is not released in time, the battery can explode. In order to prevent the explosion of the battery, it is necessary to release the pressure accumulated inside the battery, and the most common measure is to provide a safety protection device on the top cap of the battery. At present, the common safety protection device is to punch a longitudinal through hole on a battery top cover and then directly weld an explosion-proof sheet.

However, the battery top cover has poor strength, is very easy to deform in production and processing, and cannot meet the requirements of mounting a sealing ring, a positive pole post and a negative pole post and welding an explosion-proof sheet on the flatness of the battery cover plate after deformation, so that the rejection rate is high.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is desirable to provide a positioning fixture for a battery cover plate.

A be used for battery apron positioning jig includes: the battery cover plate positioning device comprises a positioning support, positioning bosses used for positioning a battery cover plate are respectively arranged at two ends of the top surface of the positioning support in the length direction, positioning surrounding parts are respectively arranged at the edges of the two ends of the top surface in the length direction, and the positioning surrounding parts are correspondingly arranged around the positioning bosses; the surface of the positioning boss is provided with a bearing table, and a lifting driving structure is arranged in the positioning support, is connected with the bearing table and is used for driving the bearing table to ascend and protrude out of the surface of the positioning boss so as to bear the sealing ring; and the bearing table can descend under the driving action of the lifting driving structure, so that the sealing ring is embedded into the mounting hole of the battery cover plate.

In some of these embodiments, the lift driving structure comprises:

the ejector rod is inserted into the first side surface of the positioning support from the outside along the width direction of the positioning support;

the driving block is arranged in the positioning support, is connected with the inner end of the ejector rod and can move along the width direction of the positioning support in cooperation with a linear guide rail arranged in the positioning support, a driving surface which gradually inclines downwards along the insertion direction of the ejector rod is arranged at the top of the driving block, and an included angle between the driving surface and the bottom surface of the positioning support is an acute angle;

and the axis of the rotating shaft of the follower wheel is parallel to the length direction of the positioning support, the circumferential surface of the follower wheel is in contact with the inclined driving surface, and the rotating shaft of the follower wheel is fixedly connected with the bottom of the bearing table and can roll upwards along the inclined surface when the ejector rod drives the driving block to move in the direction away from the first side surface.

In some embodiments, the lifting driving structure further includes a connecting plate disposed at the bottom of the receiving platform, the connecting plate is connected with a guide pin and a guide spring, the guide pin and the guide spring respectively extend upward, and the top of the guide pin and the top of the guide spring are embedded into a positioning cavity formed in the positioning support.

In some embodiments, two guide pins and two guide springs are respectively arranged on two sides of the bearing platform symmetrically. The symmetry sets up and to guarantee the direction steadiness, further reduces the probability that the accepting table appears the direction skew that goes up and down.

In some embodiments, the lifting driving structure further comprises a rebound mechanism, the rebound mechanism comprises a guide rod and a first spring sleeved on the surface of the guide rod, the rebound mechanism is arranged on one side, away from the ejector rod, of the driving block along the width direction, one end of the guide rod is connected with the driving block, and the other end of the guide rod penetrates through the second side face of the positioning support; and two ends of the first spring are respectively propped against the inner wall of the second side surface and the driving block.

In some embodiments, the number of the positioning supports is two or more, and the positioning supports are arranged in sequence along the width direction; the lifting driving structure further comprises a linkage rod, the linkage rod is arranged between every two adjacent positioning supports, two ends of the linkage rod are respectively inserted into one positioning support from the second side and the other adjacent positioning support from the first side along the width direction from the outside, and two ends of the linkage rod are respectively connected with the driving blocks in the two positioning supports.

In some embodiments, a second spring is sleeved on a part of the linkage rod, which is close to the ejector rod and is arranged on the positioning support, and two ends of the second spring respectively abut against the inner wall of the second side face and the driving block.

In some embodiments, the number of the positioning supports is two or more, and the two or more positioning supports are sequentially arranged along the width direction, and the lifting driving structures which are positioned at the same position along the length direction and adjacent to the positioning supports are connected through a linkage rod.

In some embodiments, the positioning surrounding block part comprises three positioning surrounding block blocks, and the three positioning surrounding block blocks are respectively arranged at the end part in the length direction and at two sides in the width direction.

In some of these embodiments, the locating boss is square and protrudes 2-5mm above the top surface.

Above-mentioned battery apron positioning jig has following profitable technological effect:

the embodiment can realize the assembly of the sealing ring; positioning jig provides the location for the battery apron and places the space, arrange the battery apron in its surperficial back, the location boss can cooperate the electrode installation position of location support battery apron length direction both sides, the battery apron is fixed a position back stable in structure, can not take place bending deformation when removing or assembling on the production line, can satisfy installation anodal utmost point post, negative pole utmost point post, perhaps to the requirement of battery cover plate plane degree during welding explosion-proof piece, improved and assembled the yield.

The location of this embodiment is enclosed fender portion and is arranged around the circumference of battery apron, encloses to battery apron and keeps off spacingly to with location boss combined action, battery apron takes place to slide on the surface of location support when avoiding positioning jig to remove on the production line and leads to can't assemble spare parts such as utmost point post according to the mode of predetermineeing, perhaps assembly position deviation leads to the product to scrap.

Drawings

Fig. 1 is a schematic view of a battery cover plate positioning jig according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of FIG. 1;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 1 with one of the positioning brackets removed;

FIG. 5 is a state diagram of the elevating driving structure of FIG. 4 driving the receiving platform to rise;

FIG. 6 is a schematic view of the sealing ring assembled to the battery cover plate;

in the figure, 1000, a positioning jig; 1100. positioning a support; 1101. positioning the boss; 1101a, a receiving table; 1102. positioning the enclosing part; 1200. a lifting drive structure; 1201. a top rod; 1202. a drive block; 1202a, a driving surface; 1203. a linear guide rail; 1204. a follower wheel; 1205. a connecting plate; 1206. a guide pin; 1207. a guide spring; 1208a, a guide rod; 1208b, a first spring; 1209. a linkage rod; 1209a, a second spring; 10. a battery cover plate; 101. mounting holes; 102. and (5) sealing rings.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

To facilitate an understanding of the present invention, various embodiments defined by the claims of the present invention will be described more fully hereinafter with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is understood that the same is by way of example only and is not to be taken by way of limitation. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following description of the various embodiments of the invention is provided for the purpose of illustration only and not for the purpose of limiting the invention as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and variations of the words, for example "comprising" and "comprises", mean "including but not limited to", and are not intended to (and do not) exclude other components, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The expression "comprising" and/or "may comprise" as used in the present invention is intended to indicate the presence of corresponding functions, operations or elements, and is not intended to limit the presence of one or more functions, operations and/or elements. Furthermore, in the present application, the terms "comprises" and/or "comprising" are intended to indicate the presence of the features, quantities, operations, elements, and components, or combinations thereof, disclosed in the specification. Thus, the terms "comprising" and/or "having" should be understood as presenting additional possibilities for one or more other features, quantities, operations, elements, and components, or combinations thereof.

In the present application, the expression "or" encompasses any and all combinations of the words listed together. For example, "a or B" may comprise a or B, or may comprise both a and B.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present.

References herein to "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships, which may change accordingly when the absolute position of the object being described changes.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, in an embodiment of the present invention, a positioning fixture for a battery cover plate is provided, including:

the battery cover plate positioning device comprises a positioning support 1100, wherein positioning bosses 1101 used for positioning the battery cover plate 10 are respectively arranged at two ends of the top surface of the positioning support 1100 in the length direction, positioning surrounding parts 1102 are respectively arranged at the edges of the two ends of the top surface in the length direction, and the positioning surrounding parts 1102 are correspondingly arranged around the positioning bosses 1101;

a bearing platform 1101a is arranged on the surface of the positioning boss 1101, and a lifting driving structure 1200 is arranged inside the positioning support 1100, is connected with the bearing platform 1101a, and is used for driving the bearing platform 1101a to ascend and protrude out of the surface of the positioning boss 1101 so as to bear the sealing ring 102; and the receiving table 1101a can be lowered by the driving of the elevating driving mechanism 1200, so that the sealing ring 102 is fitted into the mounting hole 101 of the battery cover 10.

Specifically, the battery cover plate 10 to be assembled is placed on the positioning support 1100, and two ends of the battery cover plate 10 in the length direction are respectively positioned by the positioning bosses 1101. A mounting hole 101 is formed in the battery cover plate 10, and the mounting hole 101 is arranged corresponding to the bearing platform 1101 a; when the sealing ring 102 needs to be installed, the lifting driving structure 1200 drives the receiving platform 1101a to ascend and protrude out of the surface of the positioning boss 1101, and at this time, the sealing ring 102 is sleeved on the receiving platform 1101 a; then, the receiving platform 1101a descends under the driving action of the lifting driving structure 1200, so that the sealing ring 102 is just coaxially inserted into the mounting hole 101 of the battery cover plate 10, and the assembly of the sealing ring 102 is realized.

The present embodiment enables assembly of the seal ring 102; positioning jig 1000 provides the location for battery apron 10 and places the space, arrange battery apron 10 in its surperficial back, location boss 1101 can cooperate the electrode installation position of location support battery apron 10 length direction both sides, battery apron 10 is fixed a position back stable in structure, can not take place bending deformation when removing or assembling on the production line, can satisfy installation anodal utmost point post, negative pole utmost point post, perhaps to the requirement of battery apron 10 plane degree during welding explosion-proof piece, the assembly rate of products has been improved.

The positioning surrounding part 1102 is arranged around the circumferential direction of the battery cover plate 10, and the battery cover plate 10 is surrounded and limited in position, so that the battery cover plate 10 and the positioning boss 1101 act together, and the situation that when the positioning jig 1000 moves on a production line, the battery cover plate 10 slides on the surface of the positioning support 1100 to cause that parts such as poles cannot be assembled according to a preset mode or products are scrapped due to assembly position deviation is avoided.

Referring to fig. 2 and 3, in some embodiments, the lift driving structure 1200 includes:

a lift pin 1201 inserted into the first side surface of the positioning holder 1100 from the outside in the width direction of the positioning holder 1100;

the driving block 1202 is arranged in the positioning support 1100, the driving block 1202 is connected with the inner end of the mandril 1201 and can move along a linear guide rail 1203 arranged in the positioning support 1100 along the width direction of the positioning support 1100, the top of the driving block 1202 is provided with a driving surface 1202a which gradually inclines downwards along the insertion direction of the mandril 1201, and an included angle between the driving surface 1202a and the bottom surface of the positioning support 1100 is an acute angle;

a follower wheel 1204 having a shaft axis parallel to the length direction of the placement support 1100 and a circumferential surface in contact with the inclined drive surface 1202a, the shaft axis of the follower wheel 1204 being fixedly connected to the bottom of the receiving table 1101a for rolling up the inclined surface when the ram 1201 drives the drive block 1202 in a direction away from the first side surface.

Specifically, the mandrel 1201 moves into the positioning support 1100 along the insertion direction, and synchronously pushes the driving block 1202 to move, and along with the movement of the driving block 1202, the follower wheel 1204 rolls upwards along the inclined surface to drive the receiving platform 1101a to move upwards.

The lifting driving structure 1200 in this embodiment can convert the driving force of the mandril 1201 in the horizontal direction into the driving force in the vertical direction, thereby saving the arrangement space of the whole structure in the vertical direction and reducing the overall thickness; the lifting can be ensured to be stable, stepless fine adjustment of the lifting height can be realized, and the adjustment precision is high; and the follower wheel 1204 can roll along the inclined driving surface 1202a, and is small in frictional resistance, smooth in movement, free from rattling, and free from noise due to friction.

Referring to fig. 3, in some embodiments, the lifting driving structure 1200 further includes a connection plate 1205 disposed at the bottom of the receiving platform 1101a, the connection plate 1205 is connected with a guide pin 1206 and a guide spring 1207, the guide pin 1206 and the guide spring 1207 respectively extend upward, and the top of the guide pin 1206 and the top of the guide spring 1207 are embedded in a positioning cavity formed in the positioning support 1100.

Specifically, the guide pin 1206 and the guide spring 1207 can provide guidance for the lifting of the receiving platform 1101a, so that the receiving platform 1101a is guaranteed to move along the vertical direction all the time, and the phenomenon that parts such as the sealing ring 102 cannot be assembled according to a preset mode or products are scrapped due to the assembling position deviation of the sealing ring 102 caused by the inclined deviation of the moving direction is avoided.

Referring to fig. 3, in some embodiments, two guide pins 1206 and two guide springs 1207 are symmetrically disposed on two sides of the receiving platform 1101 a. The symmetrical arrangement can ensure guiding smoothness and further reduce the probability of the bearing table 1101a deviating in the lifting direction.

Referring to fig. 2, in some embodiments, the lifting driving structure 1200 further includes a resilient mechanism, the resilient mechanism includes a guide rod 1208a and a first spring 1208b sleeved on a surface of the guide rod 1208a, the resilient mechanism is disposed on a side of the driving block 1202 away from the top rod 1201 along the width direction, one end of the guide rod 1208a is connected to the driving block 1202, and the other end of the guide rod 1208 passes through the second side surface of the positioning support 1100; the two ends of the first spring 1208b respectively abut against the inner wall of the second side surface and the driving block 1202.

Specifically, when the top rod 1201 moves in the positioning support 1100 along the insertion direction and drives the receiving platform 1101a to move upwards, the guide rod 1208a also moves in the insertion direction of the top rod 1201, and at this time, because two ends of the first spring 1208b respectively abut against the inner wall of the second side surface and the driving block 1202, the first spring 1208b stores energy under compression; when the raised bearing platform 1101a needs to be operated to descend, the mandril 1201 is released, the compressed first spring 1208b rebounds and releases energy to push the driving block 1202 to move reversely, and the follower wheel 1204 rolls downwards along the inclined surface to drive the bearing platform 1101a to move downwards to reset.

In the embodiment, the first spring 1208b is used for resetting the lifting driving structure 1200, the ejector rod 1201 does not need to be operated reversely, and energy consumption is saved; the guide rod 1208a can guarantee that the resilience direction of the first spring 1208b is stable, guarantee that the first spring 1208b is compressed and extended along the preset direction all the time, and avoid that the mechanism is damaged due to compression or the resilience direction is deviated, the carrying platform 1101a cannot normally descend, and then the parts such as the sealing ring 102 cannot be assembled according to the preset mode, or the assembling position deviation of the sealing ring 102 causes product scrapping.

Referring to fig. 2, in some embodiments, the positioning supports 1100 are two or more, and are arranged in sequence along the width direction; the lifting driving structure 1200 further comprises a linkage rod 1209 arranged between the two adjacent positioning supports 1100, two ends of the linkage rod 1209 are respectively inserted into one positioning support 1100 from the second side surface and the other adjacent positioning support 1100 from the first side surface along the width direction from the outside, and two ends of the linkage rod 1209 are respectively connected with the driving blocks 1202 in the two positioning supports 1100.

Specifically, the mandril 1201 moves into the positioning support 1100 along the insertion direction, and synchronously pushes the driving block 1202 to move, and along with the movement of the driving block 1202, the follower wheel 1204 rolls upwards along the inclined surface to drive the receiving platform 1101a to move upwards. While the driving block 1202 moves, the linkage rod 1209 drives the driving block 1202 in the other adjacent positioning support 1100 to move in the same direction, so that the receiving platform 1101a in the other positioning support 1100 moves upwards.

In this embodiment, a plurality of positioning supports 1100 are arranged at the same time, and the lifting of a plurality of receiving platforms 1101a can be realized by the movement of one push rod 1201, so that the assembly of the sealing rings 102 on a plurality of battery cover plates 10 is realized; positioning jig 1000 provides the location simultaneously for a plurality of battery apron 10 and places the space, and a plurality of battery apron 10 are fixed a position back stable in structure, also can not take place bending deformation when removing simultaneously or assembling on the production line, can satisfy installation anodal utmost point post, negative pole utmost point post, perhaps to the requirement of battery apron 10 plane degree when welding explosion-proof piece, have improved the yield and the work efficiency of assembly.

Referring to fig. 2, in some embodiments, a second spring 1209a is sleeved on a portion of the linkage rod 1209 close to the lift rod 1201 and disposed on the positioning support 1100, and two ends of the second spring 1209a respectively abut against an inner wall of the second side surface and the driving block 1202.

Specifically, when the mandrel 1201 moves in the positioning support 1100 along the insertion direction and drives the receiving platform 1101a to move upwards, the linkage rod 1209 also moves along the insertion direction of the mandrel 1201, and at this time, because two ends of the second spring 1209a respectively abut against the inner wall of the second side surface and the driving block 1202, the second spring 1209a is compressed to store energy; when the raised bearing platform 1101a needs to be operated to descend, the mandril 1201 is released, the compressed second spring 1209a rebounds and releases energy to push the driving block 1202 to move reversely, and the follower wheel 1204 rolls downwards along the inclined surface to drive the bearing platform 1101a to move downwards to reset.

In this embodiment, the second spring 1209a is used to reset the lifting driving structure 1200, and the push rod 1201 does not need to be operated reversely, thereby saving energy consumption; the gangbar 1209 can guarantee that the resilience direction of second spring 1209a is stable, guarantees that it compresses and extends along predetermineeing the direction all the time, avoids leading to the mechanism to damage, accepts the unable normal decline of platform 1101a because compression or resilience direction skew, and then can't lead to the product to scrap according to spare parts such as the mode assembly sealing washer 102 of predetermineeing, or sealing washer 102 assembly position deviation.

Referring to fig. 2, in some embodiments, two or more positioning supports 1100 are connected to each other through a linkage rod 1209 between the lifting driving structures 1200 located at the same position in the length direction and located in sequence in the width direction and adjacent to the positioning supports 1100.

In this embodiment, a plurality of positioning supports 1100 are arranged at the same time, and a plurality of receiving platforms 1101a can be lifted synchronously by a linkage rod 1209, so that the assembly of the sealing rings 102 on a plurality of battery cover plates 10 is realized; a plurality of positioning support 1100 of positioning jig 1000 provides the location simultaneously for a plurality of battery apron 10 and places the space, and a plurality of battery apron 10 are fixed a position back stable in structure, also can not take place bending deformation when removing simultaneously or assembling on the production line, can satisfy installation anodal utmost point post, negative pole utmost point post, or to the requirement of battery apron 10 plane degree when welding explosion-proof piece, have improved the yield and the work efficiency of assembly.

Referring to fig. 1, in some embodiments, the positioning surrounding blocking portion 1102 includes three positioning surrounding blocks, and the three positioning surrounding blocks are respectively disposed at an end portion in the length direction and at two sides in the width direction. In this embodiment, the total six positioning surrounding blocks are arranged around the circumference of the battery cover plate 10, and the surrounding blocks for the battery cover plate 10 are limited, so that the battery cover plate 10 and the positioning boss 1101 act together, and the battery cover plate 10 is prevented from sliding on the surface of the positioning support 1100 when the positioning jig 1000 moves on the production line.

Referring to FIG. 1, in some embodiments, the positioning boss 1101 is square and protrudes 2-5mm above the top surface. Practical use tests show that the positioning boss 1101 adopting the designed shape and size can not cause the middle part to be suspended due to overhigh position, and can not cause the surface contact between the middle part of the battery cover plate 10 and the positioning support 1100 to be damaged due to overlow position, so that the electrode mounting parts on two sides of the battery cover plate 10 in the length direction can be stably matched and positioned, and the battery cover plate 10 is stable in structure and cannot be bent and deformed after being positioned.

In the above description, although it is possible to describe each element of the present invention using expressions such as "first" and "second", they are not intended to limit the corresponding elements. For example, the above description is not intended to limit the order or importance of the corresponding elements. The above expressions are used to distinguish one element from another.

The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references include plural references unless there is a significant difference in context, scheme or the like between them.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Those skilled in the art will appreciate that various features of the above-described embodiments may be omitted, added, or combined in any way, and for the sake of brevity, all possible combinations of features of the above-described embodiments will not be described, however, so long as there is no contradiction between these combinations of features, and simple variations and structural variations which are adaptive and functional to the prior art, which can occur to those skilled in the art, should be considered within the scope of this description.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that while the invention has been shown and described with reference to various embodiments, it will be apparent to those skilled in the art that various changes and modifications in form and detail may be made without departing from the spirit of the invention without departing from the scope thereof as defined by the appended claims. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a battery apron positioning jig which characterized in that includes:

the locating support, the top surface of locating support is equipped with the location boss that is used for fixing a position the battery apron respectively at length direction's both ends, the both ends edge that the top surface length direction is equipped with respectively fixes a position and encloses fender portion, just the location encloses fender portion and corresponds and encircle the boss of fixing a position sets up two

The surface of location boss is equipped with the bearing platform, the inside lift drive structure that is equipped with of location support, with the bearing platform links to each other, is used for the drive the bearing platform rises and protrusion in the surface of location boss to accept sealing washer two just the bearing platform can descend under the drive effect of lift drive structure, so that the sealing washer imbeds the mounting hole of battery apron.

2. The battery cover plate positioning jig of claim 1, wherein the lifting driving structure comprises:

a top rod inserted into the second side surface of the positioning support from the outside along the width direction of the positioning support

The drive block is located in the positioning support, the drive block with the inner of ejector pin links to each other, and can place in with the linear guide of positioning support cooperatees and follows the width direction of positioning support removes, the top of drive block is equipped with the edge the drive face of ejector pin plug-in direction downward sloping gradually, the drive face with contained angle between the basal surface of positioning support is acute angle two

The axis of the rotating shaft of the follower wheel is parallel to the length direction of the positioning support, the circumferential surface of the follower wheel is in contact with the inclined driving surface, the rotating shaft of the follower wheel is fixedly connected with the bottom of the bearing table, and the follower wheel can roll upwards along the driving surface when the ejector rod drives the driving block to move towards the direction far away from the first side surface.

3. The battery cover plate positioning jig according to claim 2, wherein the lifting driving structure further comprises a connecting plate disposed at the bottom of the receiving platform, the connecting plate is connected with a guide pin and a guide spring, the guide pin and the guide spring respectively extend upward and the top of the guide pin and the guide spring is embedded into a positioning cavity formed in the positioning support.

4. The battery cover plate positioning jig of claim 3, wherein two guide pins and two guide springs are respectively arranged on two sides of the bearing platform.

5. The battery cover plate positioning jig of claim 2, wherein the lifting driving structure further comprises a rebounding mechanism, the rebounding mechanism comprises a guide rod and a first spring, the first spring is sleeved on the surface of the guide rod, the rebounding mechanism is arranged on one side, away from the ejector rod, of the driving block in the width direction, one end of the guide rod is connected with the driving block, and the other end of the guide rod penetrates through the second side surface of the positioning support and two ends of the first spring respectively abut against the inner wall and the driving block of the second side surface.

6. The battery cover plate positioning jig according to claim 2, wherein the number of the positioning supports is two or more, the two lifting driving structures are sequentially arranged in the width direction, the lifting driving structures further comprise linkage rods which are arranged between the two adjacent positioning supports, two ends of each linkage rod are respectively inserted into one positioning support from the second side and the other adjacent positioning support from the first side from the outside in the width direction, and two ends of each linkage rod are respectively connected with the driving blocks in the two positioning supports.

7. The battery cover plate positioning jig according to claim 6, wherein a second spring is sleeved on a part of the linkage rod, which is close to the ejector rod and is arranged on the positioning support, and two ends of the second spring respectively abut against the inner wall of the second side face and the driving block.

8. The battery cover plate positioning jig according to claim 1, wherein the positioning supports are two or more, and the two or more positioning supports are sequentially arranged in the width direction, and the adjacent positioning supports are connected through a linkage rod between the lifting driving structures which are located at the same position in the length direction.

9. The battery cover plate positioning jig according to claim 1, wherein the positioning surrounding block portion includes three positioning surrounding block pieces, and the three positioning surrounding block pieces are respectively disposed at an end portion in the length direction and at both sides in the width direction.