Battery tray clamp

Abstract

The utility model relates to a battery tray clamp and belongs to the field of battery manufacturing. The battery tray clamp comprises a base, elastic limiting pieces and a rotary limiting piece, the multiple elastic limiting pieces are arranged on the base to bear a workpiece, and the elastic limiting pieces are configured to elastically deform in the gravity direction when bearing the workpiece; the rotary limiting pieces are arranged on the base in a mode of rotating around a rotating axis, the rotating axis is parallel to the gravity direction, the rotary limiting pieces and the elastic limiting pieces are arranged in a one-to-one correspondence mode, the rotary limiting pieces are provided with first positions and second positions, and when the rotary limiting pieces are located at the first positions, the rotary limiting pieces and the elastic limiting pieces are arranged at intervals in the gravity direction; at the second position, on the orthographic projection perpendicular to the gravity direction, the orthographic projection of the rotary limiting piece is not overlapped with the orthographic projection of the elastic limiting piece.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing, and specifically relates to a battery tray clamp. Background Technology

[0002] The battery tray is a key component of electric vehicle battery packs, and its structural and manufacturing precision directly affects the safety and performance of the battery pack. Welding is one of the main processes in manufacturing battery trays. Uneven stress distribution within the material after welding causes deformation, which leads to processing errors during subsequent machining of the battery tray frame beams. Utility Model Content

[0003] In view of the above problems, this application provides a battery tray fixture that can reduce subsequent processing errors caused by workpiece deformation.

[0004] This application provides a battery tray clamp, which includes a base, elastic limiting members, and rotation limiting members. Multiple elastic limiting members are disposed on the base to support workpieces. Each elastic limiting member is configured to elastically deform along the direction of gravity when supporting the workpiece. A rotation limiting member is rotatably disposed on the base about a rotation axis parallel to the direction of gravity. The rotation limiting member and the elastic limiting member are arranged in a one-to-one correspondence. The rotation limiting member has a first position and a second position. In the first position, the rotation limiting member and the elastic limiting member are spaced apart in the direction of gravity. In the second position, the orthographic projection of the rotation limiting member and the orthographic projection of the elastic limiting member do not overlap on a projection perpendicular to the direction of gravity.

[0005] Specifically, when fixing the workpiece, the rotation limiting workpiece is first placed in the second position so that the workpiece can be placed on multiple elastic limiting members along the direction of gravity. When the elastic limiting members come into contact with the workpiece, they will elastically deform along the direction of gravity. Then, by placing the rotation limiting member in the first position, the rotation limiting member and the elastic limiting member together limit the workpiece.

[0006] In the above technical solution, since the elastic limiting component will elastically deform along the direction of gravity when it comes into contact with the workpiece, the elastic limiting component at the corresponding workpiece deformation point can eliminate the influence of workpiece deformation on the limiting by deforming itself more, and at the same time avoid the damage of secondary deformation to the workpiece caused by rigid forced limiting, thereby reducing the processing error of subsequent workpiece processing.

[0007] In some embodiments, the workpiece includes a crossbeam extending along a first direction, and a plurality of elastic limiting members are spaced apart along the first direction; and / or, the workpiece includes a longitudinal beam extending along a second direction, and a plurality of elastic limiting members are spaced apart along the second direction, wherein the first direction, the second direction, and the gravity direction are perpendicular to each other.

[0008] In the above technical solution, by arranging multiple elastic limiting components along the main extension direction of the workpiece (i.e., the extension direction of the crossbeam and / or the longitudinal beam at intervals), the multiple elastic limiting components can compensate for the deformation in the main extension direction of the workpiece during the previous welding process through their own elastic deformation, thereby further reducing the processing error of the workpiece in subsequent processing.

[0009] In some embodiments, the battery tray clamp further includes a first limiting mechanism comprising two first limiting members spaced apart along the second direction, with a first gap between the two first limiting members for accommodating the crossbeam; and / or a second limiting mechanism comprising two second limiting members spaced apart along the first direction, with a second gap between the two second limiting members for accommodating the longitudinal beam.

[0010] In the above technical solution, a first limiting mechanism is formed by two first limiting members to limit the movement of the crossbeam in the second direction, and / or a second limiting mechanism is formed by two second limiting members to limit the movement of the main beam in the first direction, thereby improving the limiting accuracy of the battery tray clamp, while the structure is simple and easy to implement.

[0011] In some embodiments, the battery tray clamp further includes an end support disposed on the base and used to support the end of the crossbeam and / or the end of the longitudinal beam.

[0012] In the above technical solution, the ends of the crossbeam and / or the ends of the longitudinal beam are supported by end supports, thereby limiting the sagging of the ends of the crossbeam and / or the longitudinal beam due to their own weight, and improving the positioning accuracy of the battery tray clamp.

[0013] In some embodiments, the battery tray clamp further includes a first nozzle connected to a gas source and supplying gas to the end face of the end support for supporting the crossbeam and / or longitudinal beam.

[0014] In the above technical solution, by setting a first nozzle to supply gas to the end support, the risk of processing debris remaining on the support end face of the end support and scratching subsequent workpieces is reduced, thereby improving the workpiece yield and reducing the workpiece rework rate.

[0015] In some embodiments, the battery tray fixture further includes a detection mechanism disposed on the base and used to detect the placement of the workpiece.

[0016] In the above technical solution, the placement of the workpiece is detected by the detection mechanism, which reduces the risk of workpiece damage caused by the rotation of the limiting component to forcibly press the workpiece when the workpiece is not in place, and reduces the risk of workpiece scrap.

[0017] In some embodiments, the battery tray clamp further includes a second nozzle connected to a gas source and supplying gas to the detection mechanism.

[0018] In the above technical solution, gas is supplied to the testing mechanism through the second nozzle to clean the testing mechanism, which reduces the risk that the debris generated during processing will remain in the testing mechanism and cause inaccurate test results.

[0019] In some embodiments, the battery tray clamp further includes a telescopic limiting member disposed on the base and having a telescopic end that can be telescopically extended along the direction of gravity. The workpiece is provided with a first limiting hole, and the telescopic end extends out to be inserted into the first limiting hole.

[0020] In the above technical solution, the workpiece is fixed by extending the telescopic end into the first limiting hole, and the workpiece is released by retracting the telescopic end to disengage from the first limiting hole. The structure is simple and easy to implement.

[0021] In some embodiments, the elastic limiting member has an expansion end away from the base, the workpiece is provided with a second limiting hole, the expansion end is used to be inserted into the second limiting hole, and the expansion end is configured to expand radially therein to abut against the inner wall of the second limiting hole.

[0022] In the above technical solution, the workpiece is restricted by the expansion end expanding radially to abut against the inner wall of the second limiting hole, thereby ensuring that the expansion end fully abuts against the inner wall of the second limiting hole of the workpiece, which is beneficial to improving the limiting accuracy of the battery tray fixture.

[0023] In some embodiments, the elastic limiting member is a pneumatic support cylinder, and / or the battery tray clamp further includes a driving member disposed on the base, the rotation limiting member is disposed on the driving end of the driving member, and the driving member is used to drive the rotation limiting member to rotate around the rotation axis.

[0024] In the above technical solution, by setting the elastic limiting member as a pneumatic support cylinder and / or driving the rotating limiting member to rotate around the rotation axis by a driving member, the operator's workload is reduced. In particular, when the elastic limiting member is set as a pneumatic support cylinder and the rotating limiting member is driven to rotate around the rotation axis by a driving member, manual clamping is not required, reducing the risk of accidental injury to the operator. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the battery tray clamp provided in an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the workpiece provided in an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the battery tray clamp after clamping the workpiece according to an embodiment of the present utility model;

[0029] Figure 4 A schematic diagram of the structure of the first limiting mechanism provided in an embodiment of this utility model;

[0030] Figure 5 A schematic diagram of the structure of the second limiting mechanism provided in this embodiment of the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the end support member provided in an embodiment of the present utility model;

[0032] Figure 7 A schematic diagram of the structure of the detection mechanism provided in this embodiment of the utility model;

[0033] Figure 8 This is a structural schematic diagram of the telescopic limiting member provided in an embodiment of the present utility model;

[0034] Figure 9 A schematic diagram of the structure of the elastic limiting member provided in the embodiment of this utility model;

[0035] Figure 10 This is a schematic diagram of the structure of the rotation limiting member provided in an embodiment of the present utility model. Detailed Implementation

[0036] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0037] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] The battery tray is a key component of electric vehicle battery packs, and its structural and manufacturing precision directly affects the safety and performance of the battery pack. Welding is one of the main processes in manufacturing battery trays. Uneven stress distribution within the material after welding causes deformation, which leads to processing errors during subsequent machining of the battery tray frame beams.

[0041] To solve the above technical problems, refer to Figures 1-3 This application provides a battery tray clamp 100 including a base 10, elastic limiting members 20, and rotation limiting members 30. Multiple elastic limiting members 20 are disposed on the base 10 to support a workpiece 200. The elastic limiting members 20 are configured to elastically deform along the gravity direction Z when supporting the workpiece 200. Rotation limiting members 30 are rotatably disposed on the base 10 about a rotation axis parallel to the gravity direction Z. The rotation limiting members 30 and elastic limiting members 20 are arranged in a one-to-one correspondence. The rotation limiting members 30 have a first position and a second position. In the first position, the rotation limiting members 30 and elastic limiting members 20 are spaced apart in the gravity direction Z. In the second position, the orthographic projection of the rotation limiting member 30 and the orthographic projection of the elastic limiting member 20 do not overlap on the orthographic projection perpendicular to the gravity direction Z.

[0042] The base 10 of the fixture is the core bearing and positioning foundation of the fixture system, and it limits the workpiece 200 through the limiting structure set on it.

[0043] The elastic limiting member 20 is a limiting structure that can elastically deform along the direction of gravity Z. For example, the elastic limiting member 20 can be a positioning pin connected to the base 10 by a guide structure and a spring.

[0044] In some embodiments, one end of the rotation limiting member 30 is rotatably disposed on the base 10, and the other end of the rotation limiting member 30 is a free end. The rotation limiting member 30 rotates about the rotation axis so that the free end of the rotation limiting member 30 is located above the elastic limiting member 20 (i.e., the first position), or is no longer located above the elastic limiting member 20 (i.e., the second position).

[0045] Specifically, when fixing the workpiece 200, the rotation limiting workpiece 200 is first placed in the second position so that the workpiece 200 can be placed on multiple elastic limiting members 20 along the gravity direction Z. When the elastic limiting member 200 contacts the workpiece 200, it will elastically deform along the gravity direction Z. Then, by placing the rotation limiting member 30 in the first position, the rotation limiting member 30 and the elastic limiting member 20 together limit the workpiece 200.

[0046] In this technical solution, since the elastic limiting member 20 will elastically deform along the direction of gravity Z when it comes into contact with the workpiece 200, the elastic limiting member 20 at the deformation point of the workpiece 200 can eliminate the influence of the workpiece 200 deformation on the limiting by its own greater deformation. At the same time, it avoids the damage caused by the rigid limiting to the workpiece 200 by secondary deformation, thereby reducing the processing error of the workpiece 200 in subsequent processing.

[0047] According to some embodiments of this application, please refer to Figures 1-3 The workpiece 200 includes a crossbeam 210 extending along a first direction X, and a plurality of elastic limiting members 20 spaced apart along the first direction X; and / or, the workpiece 200 includes a longitudinal beam 220 extending along a second direction Y, and a plurality of elastic limiting members 20 spaced apart along the second direction Y, wherein the first direction X, the second direction Y and the gravity direction Z are perpendicular to each other.

[0048] Please refer to Figure 2 The crossbeam 210 and the longitudinal beam 220 are beam-shaped structural components in two directions of the workpiece 200. The crossbeam 210 and the longitudinal beam 220 can be the frame of the battery box or the partition beam inside the battery box.

[0049] The first direction X and the second direction Y are two mutually perpendicular horizontal directions.

[0050] In this technical solution, by arranging multiple elastic limiting members 20 along the main extension direction of the workpiece 200 (i.e., the extension direction of the crossbeam 210 and / or the longitudinal beam 220) at intervals, the multiple elastic limiting members 20 can compensate for the deformation of the workpiece 200 in the main extension direction during the previous welding process through their own elastic deformation, thereby further reducing the processing error of the workpiece 200 in subsequent processing.

[0051] According to some embodiments of this application, please refer to Figure 1 and Figure 4 as well as Figure 5 The battery tray clamp 100 further includes a first limiting mechanism 40, which includes two first limiting members 41 spaced apart along the second direction Y, with a first gap 401 between the two first limiting members 41 for accommodating the crossbeam 210; and / or, a second limiting mechanism 50, which includes two second limiting members 51 spaced apart along the first direction X, with a second gap 501 between the two second limiting members 51 for accommodating the longitudinal beam 220.

[0052] In some embodiments, please refer to Figure 4 The first limiting member 41 is a plate-like structure, with its length direction parallel to the first direction X and its thickness direction parallel to the second direction Y; please refer to... Figure 5 The second limiting member 51 is a plate-shaped structure, with its length direction parallel to the second direction Y and its thickness direction parallel to the first direction X.

[0053] In this technical solution, a first limiting mechanism 40 is formed by two first limiting members 41 to limit the movement of the crossbeam 210 in the second direction Y, and / or a second limiting mechanism 50 is formed by two second limiting members 51 to limit the movement of the main beam in the first direction X, thereby improving the limiting accuracy of the battery tray clamp 100, while the structure is simple and easy to implement.

[0054] According to some embodiments of this application, please refer to Figure 1 and Figure 6 The battery tray clamp 100 also includes an end support 60, which is disposed on the base 10 and is used to support the end of the crossbeam 210 and / or the end of the longitudinal beam 220.

[0055] In this technical solution, the end of the crossbeam 210 and / or the end of the longitudinal beam 220 are supported by the end support member 60, thereby limiting the sagging of the ends of the crossbeam 210 and / or the longitudinal beam 220 due to their own weight, and improving the positioning accuracy of the battery tray clamp 100.

[0056] According to some embodiments of this application, please refer to Figure 6The battery tray clamp 100 also includes a first nozzle 61, which is connected to a gas source and supplies gas to the end face of the end support 60 for supporting the crossbeam 210 and / or the longitudinal beam 220.

[0057] In this technical solution, by providing gas to the end support 60 through the first nozzle 61, the risk of processing debris remaining on the support end surface of the end support 60 and scratching subsequent workpieces 200 is reduced, thereby improving the yield of workpieces 200 and reducing the rework rate of workpieces 200.

[0058] According to some embodiments of this application, please refer to Figure 1 and Figure 7 The battery tray clamp 100 also includes a detection mechanism 70, which is disposed on the base 10 and is used to detect the placement of the workpiece 200.

[0059] For example, the detection mechanism 70 can be a pressure-sensitive sensor or an infrared sensor.

[0060] In some embodiments, the battery tray clamp 100 further includes a controller, which is electrically connected to the detection mechanism 70 and the drive 31 of the rotation limit member 30. After the detection mechanism 70 detects that the workpiece 200 is placed in place, it sends a first signal to the controller. After receiving the first signal, the controller starts the drive 31 to drive the rotation limit member 30 to move to the first position.

[0061] In this technical solution, the placement of the workpiece 200 is detected by the detection mechanism 70, which reduces the risk of damage to the workpiece 200 caused by the rotation limiter 30 forcibly pressing the workpiece 200 when the workpiece 200 is not in place, and reduces the risk of the workpiece 200 being scrapped.

[0062] According to some embodiments of this application, please refer to Figure 7 The battery tray clamp 100 also includes a second nozzle 71, which is connected to a gas source and supplies gas to the detection mechanism 70.

[0063] In this technical solution, gas is supplied to the detection mechanism 70 through the second nozzle 71 to clean the detection mechanism 70, thereby reducing the risk that the debris generated during processing may remain in the detection mechanism 70 and cause inaccurate detection results.

[0064] According to some embodiments of this application, please refer to Figure 1 and Figure 8 The battery tray clamp 100 also includes a telescopic limiting member 80, which is disposed on the base 10 and has a telescopic end 81 that can be telescopically extended along the direction of gravity Z. A first limiting hole is provided on the workpiece 200, and the telescopic end 81 extends out to be inserted into the first limiting hole.

[0065] In some embodiments, the telescopic limiting member 80 includes a positioning pin and a telescopic cylinder 82. The positioning pin is disposed at the output end of the telescopic cylinder 82, and the telescopic cylinder 82 is used to drive the positioning pin to move along the direction of gravity Z.

[0066] In some embodiments, there are multiple telescopic limiting members 80. At least one telescopic limiting member 80 has a circular cross-section at its telescopic end 81 that matches the first limiting hole, while the other telescopic limiting members 80 have polygonal cross-sections at their telescopic ends 81. Understandably, the contact between the circular cross-section of the telescopic end 81 of at least one telescopic limiting member 80 and the first positioning hole of the workpiece 200 restricts the movement of the workpiece 200 along the first direction X and the second direction Y. The cross-sections of the telescopic ends 81 of the other telescopic limiting members 80 have a certain gap with the first limiting hole of the workpiece 200 to compensate for the tolerance of the first limiting hole distance and avoid assembly interference caused by over-positioning.

[0067] In this technical solution, the workpiece 200 is fixed by extending the telescopic end 81 and inserting it into the first limiting hole, and the workpiece 200 is released by retracting the telescopic end 81 to disengage from the first limiting hole. The structure is simple and easy to implement.

[0068] According to some embodiments of this application, please refer to Figure 1 and Figure 9 The elastic limiting member 20 has an expansion end 21 away from the base 10. The workpiece 200 is provided with a second limiting hole. The expansion end 21 is used to be inserted into the second limiting hole. The expansion end 21 is configured to expand radially to abut against the inner wall of the second limiting hole.

[0069] In this technical solution, the expansion end 21 expands radially to abut against the inner wall of the second limiting hole to restrict the workpiece 200, thereby ensuring that the expansion end 21 fully abuts against the inner wall of the second limiting hole of the workpiece 200, which is beneficial to improving the limiting accuracy of the battery tray clamp 100.

[0070] According to some embodiments of this application, please refer to Figure 1 and Figure 9 as well as Figure 10 The elastic limiting member 20 is a pneumatic support cylinder, and / or the battery tray clamp 100 also includes a driving member 31, which is disposed on the base 10, and the rotation limiting member 30 is disposed on the driving end of the driving member 31. The driving member 31 is used to drive the rotation limiting member 30 to rotate around the rotation axis.

[0071] For example, the elastic limiting member 20 can be a pneumatic support cylinder. This is prior art and will not be described further here.

[0072] For example, the drive unit 31 can be a drive motor or a rotary cylinder.

[0073] In this technical solution, by setting the elastic limiting member 20 as a pneumatic support cylinder and / or driving the rotary limiting member 30 to rotate around the rotation axis by the driving member 31, the operator's workload is reduced. In particular, when the elastic limiting member 20 is set as a pneumatic support cylinder and the rotary limiting member 30 is driven to rotate around the rotation axis by the driving member 31, manual clamping is not required, reducing the risk of accidental injury to the operator.

[0074] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0075] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery tray clamp characterized by, The battery tray clamp comprises: a base; a plurality of elastic limiters arranged on the base to support a workpiece, the elastic limiters being configured to elastically deform along a gravity direction when supporting the workpiece; a rotating limiter arranged on the base and rotatable about a rotation axis parallel to the gravity direction, the rotating limiter being arranged in one-to-one correspondence with the elastic limiters, the rotating limiter having a first position and a second position, in the first position, the rotating limiter and the elastic limiter are arranged in a spaced manner along the gravity direction, in the second position, the projection of the rotating limiter on a plane perpendicular to the gravity direction does not overlap with the projection of the elastic limiter on the plane.

2. A battery tray clamp according to claim 1, wherein, The workpiece comprises a cross beam extending along a first direction, and a plurality of the elastic limiters are arranged in a spaced manner along the first direction; and / or, The workpiece comprises a longitudinal beam extending along a second direction, and a plurality of the elastic limiters are arranged in a spaced manner along the second direction, the first direction, the second direction and the gravity direction are perpendicular to each other.

3. The battery tray clamp of claim 2, wherein, The battery tray clamp further comprises: a first limiting mechanism comprising two first limiters arranged in a spaced manner along the second direction, a first gap for accommodating the cross beam being formed between the two first limiters; and / or, a second limiting mechanism comprising two second limiters arranged in a spaced manner along the first direction, a second gap for accommodating the longitudinal beam being formed between the two second limiters.

4. The battery tray clamp of claim 2, wherein, The battery tray clamp further comprises: an end support arranged on the base and used for supporting an end of the cross beam and / or an end of the longitudinal beam.

5. The battery tray clamp of claim 4, wherein, The battery tray clamp further comprises: a first nozzle connected to a gas source and providing gas to an end surface of the end support for supporting the cross beam and / or the longitudinal beam.

6. The battery tray clamp of claim 1, wherein, The battery tray clamp further comprises: a detection mechanism arranged on the base and used for detecting a placement condition of the workpiece.

7. The battery tray clamp of claim 6, wherein, The battery tray clamp further comprises: a second nozzle connected to the gas source and providing gas to the detection mechanism.

8. The battery tray clamp of claim 1, wherein, The battery tray clamp further comprises: a telescopic limiter arranged on the base and having a telescopic end telescopically extending along the gravity direction, the workpiece being provided with a first limiting hole, the telescopic end extending out to be inserted into the first limiting hole.

9. The battery tray clamp of claim 1, wherein, The elastic limiter has an expansion end away from the base, the workpiece being provided with a second limiting hole, the expansion end being used for being inserted into the second limiting hole, the expansion end being configured to radially expand to abut against an inner wall of the second limiting hole.

10. The battery tray clamp of any one of claims 1-9, wherein, The elastic limiter is a pneumatic supporting cylinder, and / or the battery tray clamp further comprises a driving member arranged on the base, the rotating limiter being arranged on a driving end of the driving member, the driving member being used for driving the rotating limiter to rotate about the rotation axis.

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