Battery box assembly device and battery production system

Abstract

The present application discloses a battery case assembly device and a battery production system. The battery case assembly device of the present application includes a supporting component, a positioning tool and a pressurizing mechanism. The positioning tool is located on the top of the supporting component, and the positioning tool is used to position the battery case along the first direction and the second direction. The pressurizing mechanism is located above the positioning tool, and the pressurizing mechanism is used to press the mounting sleeve into the assembly hole of the mounting beam of the battery case. The pressurizing mechanism is used to replace the manual knocking of the mounting sleeve. The pressurizing mechanism can more accurately control the pressing process of the mounting sleeve. Compared with manual knocking, the force is more uniform and stable, which can reduce the problem of weld cracking near the knocking point of the case caused by manual knocking. At the same time, the positioning tool fixes the case, which reduces the large deformation of the case caused by uneven knocking force, and improves the yield rate of the battery case.

Description

Technical Field

[0001] The present application relates to the field of battery manufacturing technology, and in particular to a battery box assembly device and a battery production system. Background Art

[0002] The new energy battery box has a mounting sleeve installation process during the manufacturing process. Currently, the mounting sleeve is installed into the assembly hole of the mounting beam of the battery box by manual tapping in an interference fit. In the process of manual tapping of the mounting sleeve, the weld near the tapping point of the box is likely to crack, and the uneven force during the tapping process will cause a large deformation of the box, resulting in poor assembly quality and affecting the use of the battery box. Utility Model Content

[0003] In view of the above problems, the present application provides a battery case assembly device and a battery production system, which uses tooling to clamp and position the battery case, and then uses a pressurizing mechanism to press the mounting sleeve into the assembly hole, thereby improving the assembly quality.

[0004] In a first aspect, the present application provides a battery box assembly device, comprising:

[0005] A positioning tool, the positioning tool is used to position the battery box along a first direction and a second direction, the positioning tool comprises a base and a support member, the support member is located on the top of the base, the support member comprises a first support member, the first support member is configured as the bottom of the mounting beam of the battery box to support the mounting beam, the first direction and the second direction respectively intersect with the height direction of the positioning tool, and the first direction and the second direction are perpendicular;

[0006] The pressurizing mechanism is located above the positioning fixture and is used to press the mounting sleeve into the assembly hole of the mounting beam of the battery box.

[0007] The positioning tool positions the battery case, so that the pressurizing mechanism can control the pressing process of the mounting sleeve more accurately, so that the mounting sleeve is more evenly stressed, and the first support member supports the mounting beam. During the pressing process of the mounting sleeve, the mounting beam in a suspended state can be supported to reduce the large deformation of the mounting beam due to suspension during the pressing process, thereby improving the assembly quality of the battery case and reducing the production cost caused by damage to the battery case.

[0008] In some embodiments, the battery box assembly device also includes a supporting component, a base is arranged on the top of the supporting component, the base is slidably connected to the supporting component along a first direction, and the base has a first position for placing the battery box, and a second position for pressing the mounting sleeve into the assembly hole of the mounting beam of the battery box.

[0009] The base is slidably connected to the supporting component, so that the positioning tool can be flexibly moved in the first direction. When placing the battery case, the positioning tool can be slid away from under the pressurizing mechanism, thereby providing an open and unobstructed operating space, which is convenient for the operator to easily place the battery case on the positioning tool and perform preliminary positioning. After the placement is completed, the positioning tool with the battery case can be easily slid under the pressurizing mechanism, and the next step of the mounting sleeve pressing process can be quickly entered, which greatly simplifies the operating steps and improves the fluency and efficiency of the assembly process; at the same time, by sliding the positioning tool along the first direction, multiple mounting sleeves can be pressed in, which is convenient for pressing in multiple mounting sleeves arranged along the first direction of the battery case.

[0010] In some embodiments, the positioning tool further comprises:

[0011] The first positioning member and the second positioning member are located on the top of the base and are respectively connected to the base. The first positioning member and the second positioning member are spaced apart along the first direction. The first positioning member is used to position and cooperate with the first end of the battery box along the first direction. The second positioning member is used to position and cooperate with the second end of the battery box along the first direction. The first end and the second end are arranged back to back.

[0012] The first positioning member and the second positioning member are spaced apart along the first direction and respectively positioned and cooperated with the two ends of the battery case, so as to accurately define the position of the battery case in the first direction, thereby improving the positioning accuracy of the pressurizing mechanism and the mounting sleeve along the first direction, so that the mounting sleeve can be pressed into the assembly hole at a predetermined position to improve the uniformity of the force applied to the mounting sleeve, thereby improving the assembly quality.

[0013] In some embodiments, the base has a first cross section, the first cross section is perpendicular to the first direction, and the first cross section is located between the first positioning member and the second positioning member;

[0014] The first positioning member has a first guide surface on the side facing the second positioning member, and the distance from the first guide surface to the first section along the first direction is W1, and W1 is decreasing along the direction from the support member to the base, and / or the second positioning member has a second guide surface on the side facing the first positioning member, and the distance from the second guide surface to the first section along the first direction is W2, and W2 is decreasing along the direction from the support member to the base.

[0015] The first guide surface of the first positioning member and / or the second guide surface of the second positioning member can play a good guiding role in the placement of the battery box. When the operator places the battery box toward the positioning tool, even if the initial position of the box in the first direction is slightly deviated, the guide surface can guide the box to gradually and accurately move to the predetermined positioning position, so that the battery box is accurately matched with the first positioning member and the second positioning member, thereby improving the convenience and efficiency of the placement of the battery box.

[0016] In some embodiments, the positioning tool further comprises:

[0017] The third positioning member and the fourth positioning member are located on the top of the base and are respectively connected to the base. The third positioning member and the fourth positioning member are spaced apart along the second direction. The third positioning member is used to position and cooperate with the third end of the battery box along the second direction. The fourth positioning member is used to position and cooperate with the fourth end of the battery box along the second direction. The third end and the fourth end are arranged back to back.

[0018] On the basis of the first positioning member and the second positioning member positioning the battery case along the first direction, the third positioning member and the fourth positioning member are spaced apart along the second direction and respectively positioned and cooperated with the two ends of the battery case, so as to accurately define the position of the battery case in the second direction, thereby improving the positioning of the pressurizing mechanism and the mounting sleeve along the second direction, so that the mounting sleeve can be pressed into the assembly hole at a predetermined position, so as to improve the uniformity of the force applied to the mounting sleeve, thereby improving the assembly quality.

[0019] In some embodiments, the base has a second cross section, the second cross section is perpendicular to the second direction, and the second cross section is located between the third positioning member and the fourth positioning member;

[0020] The third positioning member has a third guide surface on the side facing the fourth positioning member, and the distance from the third guide surface to the second section along the second direction is W3, and W3 is decreasing along the direction from the support member to the base, and / or the fourth positioning member has a fourth guide surface on the side facing the third positioning member, and the distance from the fourth guide surface to the second section along the second direction is W4, and W4 is decreasing along the direction from the support member to the base.

[0021] The third guide surface of the third positioning member and / or the fourth guide surface of the fourth positioning member can play a good guiding role in the placement of the battery box. When the operator places the battery box toward the positioning tool, even if the initial position of the box in the first direction is slightly deviated, the guide surface can guide the box to gradually and accurately move to the predetermined positioning position, so that the battery box is accurately matched with the third positioning member and the fourth positioning member, thereby improving the convenience and efficiency of the placement of the battery box.

[0022] In some embodiments, the positioning tool also includes multiple support members, which are located on the top of the base and connected to the base. The multiple support members are used to support the battery box, and at least some of the support members are used to support the mounting beam and are configured as the bottom of the assembly hole.

[0023] Along the height direction of the positioning tooling, the clamping component and the base work together to clamp the battery case, which can reduce the height jump during the process of pressing the mounting sleeve into the assembly hole. The presence of the clamping component can ensure that the battery case is firmly maintained in the predetermined position, reduce the deviation of the mounting sleeve pressing position or assembly failure due to instability in the height direction, and ensure assembly accuracy and quality.

[0024] In some embodiments, the number of the pressing components is at least four, a portion of the pressing components are arranged at intervals along the first direction, and a portion of the pressing components are arranged at intervals along the second direction.

[0025] Multiple clamping components are arranged at intervals along the first direction and the second direction, respectively, and can apply clamping force to different areas of the battery case. Compared with the situation where there are a small number of clamping components or the clamping components are arranged in a single direction, during the process of pressing the mounting sleeve into the assembly hole, this layout can effectively reduce the local warping, deformation or displacement of the battery case caused by the local lack of clamping force, so that the battery case can be evenly and stably fixed in the entire plane range, thereby improving the assembly accuracy and quality during the assembly process such as pressing the mounting sleeve.

[0026] In some embodiments, the first support members have two rows, the two rows of first support members are arranged at intervals along the second direction, the first support members in the same row are arranged along the first direction, and in the same row of first support members, different first support members are configured to be arranged at the bottom of different assembly holes of the same mounting beam.

[0027] The first support member can support the mounting beam of the battery box, especially when the first support member is arranged at the bottom of the assembly hole, so that when the mounting sleeve is pressed into the assembly hole, the large deformation of the mounting beam can be further reduced, which helps to improve the assembly quality of the battery box.

[0028] In some embodiments, the support member further includes at least one second support member, the at least one second support member is used to support the body of the battery box connected to the mounting beam, and the at least one second support member is spaced apart from the first support member along the first direction.

[0029] The provision of the second support member can increase the supporting position of the battery box. When the mounting sleeve is pressed into the assembly hole, the local deformation of the battery box caused by uneven force or small force area can be reduced, thereby improving the assembly quality of the battery box.

[0030] In some embodiments, the battery box assembly device further comprises:

[0031] The connecting frame is connected with the pressing mechanism in a sliding manner along the second direction.

[0032] The positions of the assembly holes of battery boxes of different specifications along the second direction may be different. The pressurizing mechanism is slidably connected to the connecting frame along the second direction, which can meet the assembly requirements of battery boxes of different specifications. The pressurizing mechanism can press the mounting sleeve into the assembly holes of the battery box at different positions along the second direction. Therefore, the pressurizing mechanism is slidably connected to the connecting frame along the second direction, which can improve the applicability of the battery box assembly device.

[0033] In some embodiments, the pressurizing mechanism comprises:

[0034] The pressure head is located above the positioning tooling;

[0035] The driving component is connected to the pressing head driving, and is used to drive the pressing head to move along the height direction of the positioning tooling, so that the pressing head presses the mounting sleeve of the battery box into the assembly hole.

[0036] The driving component drives the pressing head to press into the assembly hole. Each time the pressing is performed, the pressing head can be driven to move with a relatively constant driving force. Compared with the manual tapping assembly method, the consistency of each pressing can be improved, and the situation where the battery box produces large deformation or local weld cracking due to excessive pressure during assembly can be reduced, thereby improving the assembly quality.

[0037] In some embodiments, the pressing head includes a first pressing head and a second pressing head, the first pressing head and the second pressing head are spaced apart along the second direction, and the first pressing head and the second pressing head are used to press different mounting sleeves into assembly holes of different mounting beams.

[0038] The first pressing head and the second pressing head are arranged at intervals along the second direction, so that the mounting sleeves on different mounting beams can be pressed in at the same time. During the assembly process of the battery case, the steps of pressing in the mounting sleeves one by one can shorten the pressing time of multiple mounting sleeves, significantly improving the overall efficiency of assembly. Especially in the case of large-scale production, it can effectively increase the number of battery cases assembled per unit time, better meet the production capacity requirements, and the first pressing head and the second pressing head perform assembly operations on the assembly holes of the mounting beams on both sides of the battery case at the same time, which can also make the force on the battery case more uniform, reduce the situation where the battery case is tilted due to unilateral force, and improve the assembly quality.

[0039] In a second aspect, the present application provides a battery production system, comprising the battery box assembly device described in the first aspect, the battery box assembly device being used to assemble the mounting sleeve into the assembly hole.

[0040] Since the battery production system includes all the technical features of the battery case assembly device of the first aspect, the effects are the same as those described above and will not be repeated here.

[0041] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0043] Figure 1 This is a partial isometric view of a battery box assembly device according to an embodiment of the present application;

[0044] Figure 2 A partial isometric view of a battery box assembly device and a battery box installation according to an embodiment of the present application;

[0045] Figure 3 This is an axonometric diagram of a positioning tool in a battery box assembly device according to an embodiment of the present application;

[0046] Figure 4 This is a structural diagram of a battery box assembly device according to an embodiment of the present application, in which a first positioning member and a second positioning member are respectively connected to a base;

[0047] Figure 5 This is a structural diagram of a battery box assembly device in which a third positioning member and a fourth positioning member are respectively connected to a base in one embodiment of the present application.

[0048] The reference numerals in the specific implementation manner are as follows:

[0049] 100. Battery box assembly device;

[0050] 10. Support components;

[0051] 20. Positioning tool; 21. First positioning member; 211. First guide surface; 22. Second positioning member; 222. Second guide surface; 23. Third positioning member; 231. Third guide surface; 24. Fourth positioning member; 241. Fourth guide surface; 25. Base; 26. Support member; 261. First support member; 262. Second support member; 27. Pressing member;

[0052] 30. Pressurizing mechanism; 31. Press head; 32. Driving component; 33. Connecting piece;

[0053] 40. Connecting frame;

[0054] 200, battery box; 210, mounting beam; 220, assembly hole;

[0055] X, first direction; Y, second direction; Z, height direction; P1, first section; P2, second section. DETAILED DESCRIPTION

[0056] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0058] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0059] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0060] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0061] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0062] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0063] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] The mounting hole of the mounting beam of the battery box is assembled with the mounting sleeve by interference fit, and the mounting sleeve is installed into the mounting hole of the mounting beam of the battery box by manual tapping. In the process of manual tapping of the mounting sleeve, the weld near the tapping point of the box is easily cracked, and the uneven force during the tapping process will cause a large deformation of the box, resulting in poor assembly quality and affecting the use of the battery box.

[0065] In view of this, the present application provides a battery case assembly device, in which a positioning tool is used to position the battery case, so that the pressurizing mechanism can control the pressing process of the mounting sleeve more accurately, so that the mounting sleeve is more evenly stressed, and the first support member supports the mounting beam. During the pressing process of the mounting sleeve, the mounting beam in a suspended state can be supported to reduce the large deformation of the mounting beam due to the suspension during the pressing process, thereby reducing the damage to the battery case, thereby improving the assembly quality of the battery case.

[0066] For the convenience of explanation, please refer to the following examples. Figure 1-Figure 5 , a battery box assembly device 100 according to some embodiments of the present application is taken as an example for description.

[0067] The battery box assembly device 100 includes a positioning tool 20 and a pressurizing mechanism 30. The positioning tool 20 is used to position the battery box 200 along a first direction X and a second direction Y. The positioning tool 20 includes a base 25 and a support member 26. The support member 26 is located at the top of the base 25. The support member 26 includes a first support member 261. The first support member 261 is configured as the bottom of the mounting beam 210 of the battery box 200 to support the mounting beam 210. The first direction X and the second direction Y intersect with the height direction Z of the positioning tool 20 respectively, and the first direction X and the second direction Y are perpendicular. The pressurizing mechanism 30 is located above the positioning tool 20. The pressurizing mechanism 30 is used to press the mounting sleeve into the assembly hole 220 of the mounting beam 210 of the battery box 200.

[0068] The battery box 200 has two mounting beams 210 , each mounting beam 210 has an assembly hole 220 , and the assembly hole 220 is used for interference fit with the mounting sleeve.

[0069] The supporting component 10 and the positioning fixture 20 can be connected by means of screws, riveting, welding or sliding.

[0070] The pressurizing mechanism 30 may be disposed on the supporting component 10 , or may be fixed by a separate frame.

[0071] The pressurizing mechanism 30 can be slidably connected to the supporting component 10 along the first direction X, or the positioning fixture 20 can be slidably connected to the supporting component 10 along the first direction X. Through the relative movement of the pressurizing mechanism 30 and the positioning fixture 20, the battery box 200 is moved to a predetermined position for assembly operation.

[0072] The height direction Z of the positioning tool 20 refers to the vertical direction when the positioning tool 20 is in a working state or in a normal placement state.

[0073] The number of the first support members 261 may be one or more. For example, the first support member 261 may be a long strip structure extending along the first direction. When the number of the assembly holes 220 is multiple, multiple mounting sleeves need to be installed into the assembly holes 220 one by one. At this time, the mounting beam 210 has multiple force-bearing positions. The first support member 261 is a long strip structure that can support multiple force-bearing positions at the same time. The first support member 261 may also be arranged in multiple numbers, and the multiple first support members 261 are arranged along the length direction of the mounting beam 210.

[0074] The pressurizing mechanism 30 can be fixed to the bracket, and the bracket can be a gantry. The positioning tool 20 is slidably connected to the supporting component 10, so that the positioning tool 20 can pass through the gantry. When the positioning tool 20 is located in the gantry, the assembly operation can be performed.

[0075] The positioning tool 20 positions the battery case 200, so that the pressurizing mechanism 30 can control the pressing process of the mounting sleeve more accurately, so that the mounting sleeve is more evenly stressed, and the first support member 261 supports the mounting beam. During the pressing process of the mounting sleeve, the mounting beam 210 in a suspended state can be supported to reduce the large deformation of the mounting beam 210 due to suspension during the pressing process, thereby reducing the damage to the battery case 200, thereby improving the assembly quality of the battery case 200.

[0076] In some embodiments, please refer to Figure 1 The battery box assembly device 100 also includes a support component 10, a base 25 is arranged on the top of the support component 10, the base 25 is slidably connected to the support component 10 along the first direction X, and the base 25 has a first position for placing the battery box 200, and a second position for pressing the mounting sleeve into the assembly hole 220 of the mounting beam 210 of the battery box 200.

[0077] As an example, the support component 10 has a guide rail extending along the first direction X, the guide rail is slidably connected with a slider, and the base 25 is connected to the slider, specifically, by screws.

[0078] The clamping and positioning tool can be driven by a driving mechanism to achieve the movement of the clamping and positioning tool. As an example, the driving mechanism includes a gear, a rack and a motor, the rack is connected to the support component 10, the length direction of the rack is the same as the first direction X, the gear is meshed with the rack, the motor is installed on the base 25, the motor shaft of the motor is connected to the gear transmission, and the movement of the clamping and positioning tool along the first direction X is achieved through the rotation of the motor. In other examples, the movement of the clamping and positioning tool along the first direction X can also be achieved by motor drive using a chain transmission or a synchronous belt transmission method.

[0079] The base 25 is slidably connected to the support component 10, so that the positioning fixture 20 can be flexibly moved in the first direction X. When placing the battery case 200, the positioning fixture 20 can be slid away from under the pressurizing mechanism 30, thereby providing an open and unobstructed operating space, which is convenient for the operator to easily place the battery case 200 on the positioning fixture 20 and perform preliminary positioning. After the placement is completed, the positioning fixture 20 with the battery case 200 can be easily slid under the pressurizing mechanism 30, and the next step of the mounting sleeve pressing process can be quickly entered, which greatly simplifies the operating steps and improves the fluency and efficiency of the assembly process; at the same time, by sliding the positioning fixture 20 along the first direction X, multiple mounting sleeves can be pressed in, which is convenient for pressing in multiple mounting sleeves arranged along the first direction X of the battery case 200.

[0080] In some embodiments, please refer to Figure 3The positioning tool 20 also includes a first positioning member 21 and a second positioning member 22. The first positioning member 21 and the second positioning member 22 are located on the top of the base 25 and are respectively connected to the base 25. The first positioning member 21 and the second positioning member 22 are arranged at intervals along the first direction X. The first positioning member 21 is used to position and cooperate with the first end of the battery box 200 along the first direction X. The second positioning member 22 is used to position and cooperate with the second end of the battery box 200 along the first direction X. The first end and the second end are arranged opposite to each other.

[0081] The number of the first positioning members 21 and the number of the second positioning members 22 can be one or more, respectively.

[0082] The first positioning member 21 and the second positioning member 22 can be positioning pins, positioning blocks or positioning bars, etc. respectively.

[0083] The first positioning member 21 and the second positioning member 22 can be fixed to the base 25 respectively by screws, welding or riveting.

[0084] The first positioning member 21 and the second positioning member 22 are arranged at intervals along the first direction X and are respectively positioned and matched with the two ends of the battery case 200, so as to accurately define the position of the battery case 200 in the first direction X, thereby improving the positioning accuracy of the pressurizing mechanism 30 and the mounting sleeve along the first direction X, so that the mounting sleeve can be pressed into the assembly hole 220 at a predetermined position, so as to improve the uniformity of the force applied to the mounting sleeve, thereby improving the assembly quality.

[0085] In some embodiments, please refer to Figure 4 The base 25 has a first cross section P1 , the first cross section P1 is perpendicular to the first direction X, and the first cross section P1 is located between the first positioning member 21 and the second positioning member 22 .

[0086] The first positioning member 21 has a first guide surface 211 on the side facing the second positioning member 22, and the distance from the first guide surface 211 to the first section P1 along the first direction X is W1, and W1 is decreasing along the direction from the support member 26 to the base 25; and / or, the second positioning member 22 has a second guide surface 222 on the side facing the first positioning member 21, and the distance from the second guide surface 222 to the first section P1 along the first direction X is W2, and W2 is decreasing along the direction from the support member 26 to the base 25.

[0087] The first guide surface 211 and the second guide surface 222 may be planes, or may be convex curved surfaces or concave curved surfaces, respectively.

[0088] In one example, both the first guide surface 211 and the second guide surface 222 are planes, and along the direction from the support member 26 to the base 25 , W1 and W2 both show a decreasing trend.

[0089] The first guide surface 211 of the first positioning member 21 and / or the second guide surface 222 of the second positioning member 22 can play a good guiding role in the placement process of the battery box 200. When the operator places the battery box 200 toward the positioning fixture 20, even if the initial position of the box in the first direction X is slightly deviated, the guide surface can guide the box to gradually and accurately move to the predetermined positioning position, so that the battery box 200 is accurately matched with the first positioning member 21 and the second positioning member 22, thereby improving the convenience and efficiency of the placement of the battery box 200.

[0090] In some embodiments, the positioning tool 20 also includes a third positioning member 23 and a fourth positioning member 24, which are located on the top of the base 25 and are respectively connected to the base 25. The third positioning member 23 and the fourth positioning member 24 are spaced apart along the second direction Y. The third positioning member 23 is used to position and cooperate with the third end of the battery box 200 along the second direction Y. The fourth positioning member 24 is used to position and cooperate with the fourth end of the battery box 200 along the second direction Y. The third end and the fourth end are arranged back to back.

[0091] The number of the third positioning members 23 and the number of the fourth positioning members 24 can be one or more.

[0092] The third positioning member 23 and the fourth positioning member 24 can be positioning pins, positioning blocks or positioning bars, etc. respectively.

[0093] The third positioning member 23 and the fourth positioning member 24 can be fixed to the base 25 respectively by screws, welding or riveting.

[0094] On the basis of the first positioning member 21 and the second positioning member 22 positioning the battery case 200 along the first direction X, the third positioning member 23 and the fourth positioning member 24 are arranged at intervals along the second direction Y and respectively positioned and cooperated with the two ends of the battery case 200, so as to accurately define the position of the battery case 200 in the second direction Y, thereby improving the positioning accuracy of the pressurizing mechanism 30 and the mounting sleeve along the second direction Y, so that the mounting sleeve can be pressed into the assembly hole 220 at a predetermined position, so as to improve the uniformity of the force applied to the mounting sleeve, thereby improving the assembly quality.

[0095] In some embodiments, please refer to Figure 5 The base 25 has a second cross section P2 , the second cross section P2 is perpendicular to the second direction Y, and the second cross section P2 is located between the third positioning member 23 and the fourth positioning member 24 .

[0096] The third positioning member 23 has a third guide surface 231 on the side facing the fourth positioning member 24, and the distance from the third guide surface 231 to the second section P2 along the second direction Y is W3, and W3 is decreasing along the direction from the support member 26 to the base 25, and / or the fourth positioning member 24 has a fourth guide surface 241 on the side facing the third positioning member 23, and the distance from the fourth guide surface 241 to the second section P2 along the second direction Y is W4, and W4 is decreasing along the direction from the support member 26 to the base 25.

[0097] The third guide surface 231 and the fourth guide surface 241 may be a plane, or may be a convex curved surface or a concave curved surface.

[0098] In one example, the third guide surface 231 and the fourth guide surface 241 are both planes, and along the direction from the support member 26 to the base 25 , W3 and W4 both show a decreasing trend.

[0099] The third guide surface 231 of the third positioning member 23 and / or the fourth guide surface 241 of the fourth positioning member 24 can play a good guiding role in the placement process of the battery box 200. When the operator places the battery box 200 toward the positioning fixture 20, even if the initial position of the box in the first direction X is slightly deviated, the guide surface can guide the box to gradually and accurately move to the predetermined positioning position, so that the battery box 200 is accurately matched with the third positioning member 23 and the fourth positioning member 24, thereby improving the convenience and efficiency of the placement of the battery box 200.

[0100] In some embodiments, please refer to Figure 1-Figure 3 The positioning tool 20 also includes a clamping component 27, which is located on the top of the base 25 and connected to the base 25. Along the height direction Z of the positioning tool 20, the clamping component 27 and the base 25 are used to clamp the battery box 200 together.

[0101] As an example, the pressing component 27 may include a pressing plate, which is detachably connected to the base 25 via bolts or screws to fix the battery box 200 to the base 25 .

[0102] As an example, the pressing component 27 may include a cylinder and a pressing piece, the cylinder is mounted on the base 25, the pressing piece is connected to the execution end of the cylinder by screws, and the cylinder drives the pressing piece to move up and down, so that the pressing piece presses and releases the battery box 200. The cylinder can be replaced by an electric push rod or a hydraulic push rod.

[0103] Along the height direction Z of the positioning tool 20, the clamping component 27 and the base 25 work together to clamp the battery box 200, which can reduce the vibration along the height direction Z when the mounting sleeve is pressed into the assembly hole 220. The presence of the clamping component 27 can ensure that the battery box 200 is firmly maintained in the predetermined position, reduce the deviation of the mounting sleeve pressing position or assembly failure caused by the instability in the height direction Z, and ensure the assembly accuracy and quality.

[0104] In some embodiments, the number of the pressing components 27 is at least four, a portion of the pressing components 27 are arranged at intervals along the first direction X, and a portion of the pressing components 27 are arranged at intervals along the second direction Y.

[0105] As an example, there are four clamping components 27 , which are generally arranged in a rectangular array so as to clamp and fix the battery box 200 at four different positions.

[0106] A plurality of clamping parts 27 are respectively arranged at intervals along the first direction X and the second direction Y, and can apply clamping force to different areas of the battery case 200. Compared with a small number of clamping parts 27 or a clamping part 27 arranged in a single direction, during the process of pressing the mounting sleeve into the assembly hole 220, this layout can effectively reduce the problems of local warping, deformation or displacement of the battery case 200 caused by the local lack of clamping force, so that the battery case 200 can be evenly and stably fixed in the entire plane range, so as to improve the assembly accuracy and quality during the assembly process such as pressing the mounting sleeve.

[0107] In some embodiments, please refer to Figure 1-Figure 3 The first support members 261 have two rows, and the two rows of first support members 261 are arranged at intervals along the second direction Y. The first support members 261 in the same row are arranged along the first direction X. In the same row of first support members 261, different first support members 261 are configured to be arranged at the bottom of different assembly holes 220 of the same mounting beam 210.

[0108] As an example, the mounting beam 210 of each battery box 200 has a plurality of assembly holes 220, and a first support member 261 is provided at the bottom of each assembly hole 220. The first support members 261 at the bottom of the mounting beam 210 are arranged and spaced along the first direction X. The remaining first support members 261 can be provided at both ends of the battery box 200 along the first direction X to increase the position of supporting force on the battery box 200, and reduce the force deformation of the battery box 200 during the assembly of the mounting sleeve.

[0109] The shape of the first support member 261 is not specifically limited. For example, the support member 26 may be a cylinder, a prism, a cube, etc. The structures of the multiple first support members 261 may be completely the same, or may not be completely the same, or may be completely different. For example, among the multiple first support members 261, some of the first support members 261 may be cylinders, and some of the first support members 261 may be prisms. The design may be performed as needed, and this application does not limit this.

[0110] The first support member 261 can support the mounting beam 210 of the battery case 200, especially the first support member 261 is arranged at the bottom of the assembly hole 220, so that when the mounting sleeve is pressed into the assembly hole 220, the mounting beam 210 can be further reduced from being greatly deformed, which helps to improve the assembly quality of the battery case 200. In other examples, the number of the first support members 261 can be the same as the number of the assembly holes 220 of the battery case 200, or less than the number of the assembly holes 220, depending on the length of the mounting beam 210 of the battery case 200 and the number of the assembly holes 220. When the length of the mounting beam 210 is short and the number of the mounting holes is one, a first support member 261 can be arranged at the bottom of each mounting beam 210. When the number of the assembly holes 220 is multiple, multiple first support members 261 can be arranged, and the arrangement of the multiple first support members 261 is the same as the arrangement of the assembly holes 220.

[0111] In some embodiments, please refer to Figure 1-Figure 3 The support member 26 also includes at least one second support member 262, and the at least one second support member 262 is used to support the body of the battery box 200 connected to the mounting beam 210. The at least one second support member 262 is spaced apart from the first support member 261 along the first direction X.

[0112] As an example, the number of the second support members 262 is four, and the four second support members 262 are arranged in a rectangular array. Specifically, two second support members 262 are respectively provided on both sides of the mounting beam 210 along the first direction X. In other examples, the number of the second support members 262 on the same side of the mounting beam 210 along the first direction X is at least one.

[0113] The shape of the second support member 262 is not specifically limited, for example, the support member 26 may be a cylinder, a prism, a cube, etc. When there are multiple second support members 262, the structures of the multiple second support members 262 may be the same, partially the same, or completely different.

[0114] The provision of the second support member 262 can increase the support position of the battery box 200. When the mounting sleeve is pressed into the assembly hole 220, the local deformation of the battery box 200 caused by uneven force or a small force area can be reduced, thereby improving the assembly quality of the battery box 200.

[0115] In some embodiments, please refer to Figure 1 The battery box assembly device 100 further includes a connecting frame 40 , and the pressurizing mechanism 30 is slidably connected to the connecting frame 40 along the second direction Y.

[0116] As an example, the pressurizing mechanism 30 further includes a connecting member 33, and the connecting member 33 is slidably connected with the connecting member 33 along the second direction Y. Specifically, the connecting member 33 can be slidably connected through a guide rail slider. A guide rail can also be made on the surface of the connecting member 33, and a slide groove is formed on the surface base 25 of the connecting member 33, and sliding along the second direction Y is achieved through the cooperation of the slide groove and the guide rail.

[0117] The positions of the assembly holes 220 of battery boxes 200 of different specifications along the second direction Y may be different. The pressurizing mechanism 30 is slidably connected to the connecting frame 40 along the second direction Y, which can meet the assembly requirements of battery boxes 200 of different specifications. The pressurizing mechanism 30 can press the mounting sleeve into the assembly holes 220 of the battery box 200 at different positions along the second direction Y. Therefore, the pressurizing mechanism 30 is slidably connected to the connecting frame 40 along the second direction Y, which can improve the applicability of the battery box assembly device 100.

[0118] In some embodiments, please refer to Figure 1 The pressurizing mechanism 30 includes a press head 31 and a driving component 32. The press head 31 is located above the positioning tool 20.

[0119] The driving component 32 is connected to the pressing head 31 and is used to drive the pressing head 31 to move along the height direction Z of the positioning tool 20 so that the pressing head 31 presses the mounting sleeve of the battery box 200 into the assembly hole 220 .

[0120] The driving component 32 may be, but is not limited to, an electric push rod, a cylinder or a hydraulic push rod, etc. The execution end of the driving component 32 is connected to the pressure head 31, and may be specifically connected by screws or threads.

[0121] The driving component 32 drives the pressing head 31 to be pressed into the assembly hole 220. Each time the pressing is performed, the pressing head 31 can be driven to move with a relatively constant driving force. Compared with the manual tapping assembly method, the consistency of each pressing can be improved, and the situation in which the battery box 200 produces large deformation or local weld cracking due to excessive pressure during assembly can be reduced, thereby improving the assembly quality.

[0122] In some embodiments, please refer to Figure 1 The pressing head 31 includes a first pressing head 31 and a second pressing head 31 , and the first pressing head 31 and the second pressing head 31 are arranged at intervals along the second direction Y. The first pressing head 31 and the second pressing head 31 are used to press different mounting sleeves into the assembly holes 220 of different mounting beams 210 .

[0123] The first pressing head 31 and the second pressing head 31 may be driven by the same driving component 32 , or may be driven by separate driving components 32 .

[0124] The first pressing head 31 and the second pressing head 31 are arranged at intervals along the second direction Y, so that the mounting sleeves on different mounting beams 210 can be pressed in at the same time. During the assembly process of the battery case 200, the steps of pressing in the mounting sleeves one by one can shorten the pressing time of multiple mounting sleeves, significantly improving the overall efficiency of assembly. Especially in the case of large-scale production, the number of battery cases 200 assembled per unit time can be effectively increased to better meet the production capacity requirements. The first pressing head 31 and the second pressing head 31 simultaneously perform assembly operations on the assembly holes 220 of the mounting beams 210 on both sides of the battery case 200, which can also make the force on the battery case 200 more uniform, reduce the situation where the battery case 200 is tilted due to unilateral force, and improve the assembly quality.

[0125] For the convenience of description, the following embodiments are described by taking a battery production system according to some embodiments of the present application as an example.

[0126] The battery production system includes the battery case assembly device 100 of the above embodiment, and the battery case assembly device 100 is used to assemble the mounting sleeve into the assembly hole 220 .

[0127] Since the battery production system includes all the technical features of the battery box assembly device 100 of the above embodiment, the effects are the same as those described above and will not be repeated here.

[0128] In an optional embodiment of the battery box assembly device 100, please refer to Figure 1-Figure 5The battery box assembly device 100 includes a support component 10, a positioning tool 20 and a pressurizing mechanism 30. The positioning tool 20 is used to position the battery box 200 along the first direction X and the second direction Y. The positioning tool 20 includes a base 25 and a support member 26. The support member 26 is located at the top of the base 25. The support member 26 includes a first support member 261. The first support member 261 is configured as the bottom of the mounting beam 210 of the battery box 200 to support the mounting beam 210. The first direction X and the second direction Y intersect with the height direction Z of the positioning tool 20 respectively, and the first direction X and the second direction Y are perpendicular. The pressurizing mechanism 30 is located above the positioning tool 20. The pressurizing mechanism 30 is used to press the mounting sleeve into the assembly hole 220 of the mounting beam 210 of the battery box 200. The positioning tool 20 also includes a first positioning member 21, a second positioning member 22, a third positioning member 23, a fourth positioning member 24, a pressing member 27 and a support member 26. The base 25 is located at the bottom of the support member 10, and the base 25 is slidably connected to the support member 10 along the first direction X. The base 25 has a first position for placing the battery case 200, and a second position for pressing the mounting sleeve into the assembly hole 220 of the mounting beam 210 of the battery case 200. The first positioning member 21 and the second positioning member 22 are located at the top of the base 25 and are connected to the base 25 respectively. The first positioning member 21 and the second positioning member 22 are arranged at intervals along the first direction X. The first positioning member 21 is used to position and cooperate with the first end of the battery case 200 along the first direction X, and the second positioning member 22 is used to position and cooperate with the second end of the battery case 200 along the first direction X. The first end and the second end are arranged opposite to each other. The base 25 has a first section P1, the first section P1 is perpendicular to the first direction X, and the first section P1 is located between the first positioning member 21 and the second positioning member 22. The first positioning member 21 has a first guide surface 211 on the side facing the second positioning member 22, and the distance from the first guide surface 211 to the first section P1 along the first direction X is W1. The second positioning member 22 has a second guide surface 222 on the side facing the first positioning member 21, and the distance from the second guide surface 222 to the first section P1 along the first direction X is W2. In the direction from the support member 26 to the base 25, W1 and W2 both show a decreasing trend. The third positioning member 23 and the fourth positioning member 24 are located at the top of the base 25 and are connected to the base 25 respectively. The third positioning member 23 and the fourth positioning member 24 are arranged at intervals along the second direction Y. The third positioning member 23 is used to position and cooperate with the third end of the battery box 200 along the second direction Y, and the fourth positioning member 24 is used to position and cooperate with the fourth end of the battery box 200 along the second direction Y. The third end and the fourth end are arranged opposite to each other. The base 25 has a second section P2, the second section P2 is perpendicular to the second direction Y, and the second section P2 is located between the third positioning member 23 and the fourth positioning member 24. The third positioning member 23 has a third guide surface 231 on one side facing the fourth positioning member 24 . The distance from the third guide surface 231 to the second cross section P2 along the second direction Y is W3 .The fourth positioning member 24 has a fourth guide surface 241 on the side facing the third positioning member 23, and the distance from the fourth guide surface 241 to the second section P2 along the second direction Y is W4. Along the direction from the support member 26 to the base 25, W3 and W4 are both decreasing. The clamping member 27 is located at the top of the base 25 and is connected to the base 25. Along the height direction Z of the positioning tool 20, the clamping member 27 and the base 25 are used to clamp the battery box 200 together. The number of the clamping members 27 is four, and the four clamping members 27 are arranged in a rectangular array. The positioning tool 20 also includes a plurality of support members 26, which are located at the top of the base 25 and are connected to the base 25. The plurality of support members 26 are used to support the battery box 200, and at least part of the support members 26 are used to support the mounting beam 210, and are configured to be arranged at the bottom of the assembly hole 220. The pressurizing mechanism 30 includes a connector 33, a pressure head 31 and a driving member 32. The connecting member 33 is slidably connected to the connecting frame 40 along the second direction Y, the pressing head 31 is located at the bottom of the connecting frame 40 and connected to the connecting member 33, and the driving component 32 is arranged on the connecting frame 40. The pressing head 31 is located above the positioning tool 20. The pressing head 31 includes a first pressing head 31 and a second pressing head 31, and the first pressing head 31 and the second pressing head 31 are arranged at intervals along the second direction Y. The first pressing head 31 and the second pressing head 31 are used to press different mounting sleeves into the assembly holes 220 of different mounting beams 210.

[0129] The first positioning member 21 to the fourth positioning member 24 of the positioning tool 20 positions the battery box 200, so that the positioning tool 20 can slide to a predetermined position along the first direction X to reduce the uneven force on the mounting sleeve caused by the positioning tool 20 deviating from the predetermined position, thereby improving the quality of assembly. W1-W4 are all along the direction from the support member 26 to the base 25, which facilitates the battery box 200 to be loaded into the positioning tool 20 to improve the assembly efficiency. The support of the support member 26 can reduce the deformation of the mounting beam 210 during the pressing process of the mounting sleeve, thereby improving the assembly quality, and the setting of the first pressure head 31 and the second pressure head 31 can improve the assembly efficiency.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery box assembly device, characterized in that: include: A positioning tool, the positioning tool is used to position the battery box along a first direction and a second direction, the positioning tool comprises a base and a support member, the support member is located on the top of the base, the support member comprises a first support member, the first support member is configured as the bottom of the mounting beam of the battery box to support the mounting beam, the first direction and the second direction respectively intersect with the height direction of the positioning tool, and the first direction and the second direction are perpendicular; A pressurizing mechanism is located above the positioning fixture, and is used to press the mounting sleeve into the assembly hole of the mounting beam.

2. The battery box assembly device according to claim 1, characterized in that: The battery box assembly device also includes a supporting component, the base is arranged on the top of the supporting component, the base is slidably connected to the supporting component along the first direction, and the base has a first position for placing the battery box, and a second position for pressing the mounting sleeve into the assembly hole of the mounting beam of the battery box.

3. The battery box assembly device according to claim 1, characterized in that: The positioning tool also includes: A first positioning member and a second positioning member, the first positioning member and the second positioning member are located on the top of the base and are respectively connected to the base, the first positioning member and the second positioning member are spaced apart along the first direction, the first positioning member is used to position and cooperate with the first end of the battery box along the first direction, the second positioning member is used to position and cooperate with the second end of the battery box along the first direction, and the first end and the second end are arranged opposite to each other.

4. The battery box assembly device according to claim 3, characterized in that: The base has a first cross section, the first cross section is perpendicular to the first direction, and the first cross section is located between the first positioning member and the second positioning member; The first positioning member has a first guide surface on the side facing the second positioning member, and the distance from the first guide surface to the first section along the first direction is W1, and W1 is decreasing along the direction from the support member to the base, and / or the second positioning member has a second guide surface on the side facing the first positioning member, and the distance from the second guide surface to the first section along the first direction is W2, and W2 is decreasing along the direction from the support member to the base.

5. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The positioning tool also includes: A third positioning member and a fourth positioning member, the third positioning member and the fourth positioning member are located on the top of the base and are respectively connected to the base, the third positioning member and the fourth positioning member are spaced apart along the second direction, the third positioning member is used for positioning and cooperating with the third end of the battery box along the second direction, the fourth positioning member is used for positioning and cooperating with the fourth end of the battery box along the second direction, and the third end and the fourth end are arranged back to back.

6. The battery box assembly device according to claim 5, characterized in that: The base has a second cross section, the second cross section is perpendicular to the second direction, and the second cross section is located between the third positioning member and the fourth positioning member; The third positioning member has a third guide surface on the side facing the fourth positioning member, and the distance from the third guide surface to the second section along the second direction is W3, and W3 is decreasing along the direction from the support member to the base, and / or the fourth positioning member has a fourth guide surface on the side facing the third positioning member, and the distance from the fourth guide surface to the second section along the second direction is W4, and W4 is decreasing along the direction from the support member to the base.

7. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The positioning tool also includes a clamping component, which is located on the top of the base and connected to the base. Along the height direction of the positioning tool, the clamping component and the base are used to clamp the battery box together.

8. The battery box assembly device according to claim 7, characterized in that: The number of the pressing components is at least four, a portion of the pressing components are arranged at intervals along the first direction, and a portion of the pressing components are arranged at intervals along the second direction.

9. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The first support members have two rows, the two rows of first support members are arranged at intervals along the second direction, the first support members in the same row are arranged along the first direction, and in the same row of first support members, different first support members are configured to be arranged at the bottom of different assembly holes of the same mounting beam.

10. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The support member further includes at least one second support member, and the at least one second support member is used to support the main body of the battery box connected to the mounting beam, and the at least one second support member is spaced apart from the first support member along the first direction.

11. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The battery box assembly device also includes: The connecting frame is connected with the pressing mechanism in a sliding manner along the second direction.

12. The battery box assembly device according to any one of claims 1 to 4, characterized in that: The pressurizing mechanism comprises: A pressure head, located above the positioning tool; A driving component is connected to the pressing head and is used to drive the pressing head to move along the height direction of the positioning tool so that the pressing head presses the mounting sleeve of the battery box into the assembly hole.

13. The battery box assembly device according to claim 12, characterized in that: The pressing head includes a first pressing head and a second pressing head, the first pressing head and the second pressing head are arranged at intervals along the second direction, and the first pressing head and the second pressing head are used to press different mounting sleeves into assembly holes of different mounting beams.

14. A battery production system, characterized in that: It comprises a battery box assembly device as described in any one of claims 1 to 13, wherein the battery box assembly device is used to assemble the mounting sleeve into the assembly hole.

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