CN217412989U

CN217412989U - Battery pack lower box body friction stir welding tool

Info

Publication number: CN217412989U
Application number: CN202221545103.2U
Authority: CN
Inventors: 顾锋云
Original assignee: Changzhou Jinpin Precision Technology Co ltd; Dongguan Everwin Precision Technology Co Ltd
Current assignee: Changzhou Jinpin Precision Technology Co ltd; Dongguan Everwin Precision Technology Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-13
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses a box friction stir welding frock under battery package, including the frock bottom plate, the upper surface of frock bottom plate is provided with the profile groove that is used for putting into the frame of box under the battery package, the upper surface of frock bottom plate still is provided with the support piece that is used for supporting the water-cooling plate perpendicularly, support piece threaded connection in the upper surface of frock bottom plate, in order through rotating support piece adjustment the support piece up end with distance between the frock bottom plate upper surface. The utility model discloses can fix the water-cooling board and the frame of box under the battery package, easy operation, the centre gripping is with fixed effectual, is convenient for carry out friction stir welding at follow-up to water-cooling board and frame, guarantees the welding effect.

Description

Battery pack lower box body friction stir welding tool

Technical Field

The application relates to the technical field of automobile battery accessory treatment, in particular to a battery pack lower box body friction stir welding tool.

Background

The power battery is used as a power device of a new energy pure electric vehicle, and the related components and structures of the power battery are provided with a battery pack and a lower box body for placing the battery pack.

Fig. 1 shows a lower box of a power battery pack. In the figure, the reference mark A is a water cooling plate in the lower box body of the battery pack, and a water cooling pipe for circulating cooling liquid is circularly arranged on the plate body. And the label B is a frame of the lower box body of the battery pack. The end face of B1 in FIG. 1 is the upper edge of the frame. The lower box body of the battery pack is integrally seen, the frame is of a square structure, and the water cooling plate covers the edge, so that the frame-shaped structure capable of accommodating the battery pack is integrally formed.

As shown in the enlarged view of the part marked by the reference M in fig. 1, that is, fig. 2, the connection of the edge of the water-cooled plate to the lower edge of the frame needs to be welded by friction stir welding to ensure the tightness of the welding seam. M1 in fig. 2 is the weld location.

The lower box body of the battery pack shown in fig. 1 is inconvenient to fix and stabilize when friction stir welding is adopted, so that a corresponding tool clamp needs to be designed to fix the lower box body of the battery pack so as to ensure the welding effect.

SUMMERY OF THE UTILITY MODEL

In view of, the utility model aims at providing a battery package lower box friction stir welding frock, concrete scheme is as follows.

A friction stir welding tool for a lower box body of a battery pack comprises a tool bottom plate, wherein an imitated groove used for placing a frame of the lower box body of the battery pack is formed in the upper surface of the tool bottom plate, at least one supporting piece used for supporting a water cooling plate is vertically arranged on the upper surface of the tool bottom plate, and the supporting piece is connected to the upper surface of the tool bottom plate in a threaded mode so that the distance between the upper end face of the supporting piece and the upper surface of the tool bottom plate can be adjusted through rotating the supporting piece; the battery pack box comprises a tool bottom plate, and is characterized in that two opposite end parts on the tool bottom plate are respectively provided with a first fixing assembly, two opposite side edges on the tool bottom plate are respectively provided with a second fixing assembly, the first fixing assembly and the second fixing assembly respectively comprise adjusting rods which are perpendicular to the tool bottom plate and can vertically move, and the two opposite adjusting rods are connected through a pressing plate so as to drive the pressing plate to downwards move through the downward movement of the adjusting rods, and further compress a battery pack lower box body.

The utility model discloses an in some preferred embodiments, the frock bottom plate includes outer bottom plate of frock and frock infrabasal plate, the upper surface of outer bottom plate of frock is formed with type groove, this inslot setting the frock infrabasal plate, just the outer wall of frock infrabasal plate with the inner wall in type groove forms the interval with regard to as the profile groove.

In some preferred embodiments of the present invention, the first fixing member and the second fixing member each include a fixing seat plate, the fixing seat plate is fixedly connected to the edge of the tool bottom plate, and the adjusting rod is connected to the fixing seat plate.

In some preferred embodiments of the present invention, the fixing seat plate is formed with a bayonet, the edge of the tool bottom plate is clamped into the bayonet of the fixing seat plate, and the fixing seat plate is fixed to the tool bottom plate by a bolt.

The utility model discloses an in some preferred embodiments, the lower extreme of adjusting the pole forms the screw thread, just the upper surface of fixed bedplate forms the screw hole, the lower extreme of adjusting the pole stretches into the screw hole and realize screw-thread fit, and then realize the vertical removal of adjusting the pole.

The utility model discloses an in some preferred embodiments, the upper end of adjusting the pole forms the regulating rod head that the external diameter is greater than its lower part, be formed with the via hole on the clamp plate, it down inserts from last to adjust the pole in the via hole, and pass through the regulating rod head is right the clamp plate carries on spacingly.

In some preferred embodiments of the present invention, the supporting member includes a supporting rod and a supporting head, the lower end of the supporting rod is screwed to the upper surface of the tool bottom plate, the upper end of the supporting rod is disposed on the supporting head, the supporting head is plate-shaped, and the upper surface of the supporting head is a supporting plane for supporting the water-cooling plate.

The utility model discloses an in some preferred embodiments, set up in frock bottom plate border, and relative two in position first fixed subassembly is a set of first fixed subassembly, the battery package lower box friction stir welding frock includes a set of at least first fixed subassembly.

The utility model discloses an in some preferred embodiments, set up in frock bottom plate border, and relative two in position the fixed subassembly of second is the fixed subassembly of a set of second, the battery package lower box friction stir welding frock includes a set of at least the fixed subassembly of second.

Has the advantages that:

the utility model discloses think about novelty, the accessible the utility model discloses fix the water-cooling board and the frame of box under the battery package, easy operation, the centre gripping is with fixed effectual, is convenient for carry out friction stir welding at follow-up to water-cooling board and frame, guarantees the welding effect.

Drawings

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

fig. 1 is a schematic structural view of a lower box of a workpiece battery pack according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at M in FIG. 1;

fig. 3 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

A friction stir welding tool for a lower box body of a battery pack is applied to welding between a water cooling plate A and a frame B in the lower box body of the battery pack shown in figures 1 and 2. Specifically, it is with respect to M in fig. 1 that the weld M1 (shown in fig. 2) formed between the water-cooled panel a and the frame B is welded by friction stir welding.

In the whole lower box body of the battery pack, the water cooling plate A and the frame B form a frame-shaped structure, and a welding seam M1 is in a square closed shape.

Specifically, as shown in fig. 3, the preferred embodiment of the friction stir welding tool for the lower case of the battery pack includes a tool bottom plate 10, and the tool bottom plate 10 is used for placing and supporting a workpiece. Specifically, the upper surface of the tooling bottom plate 10 is provided with a contour groove 20, and the contour groove 20 is used for being inserted into the frame B, so that the shape of the contour groove 20 is designed according to the shape of the frame B and is adapted to the frame B. In particular use, the upper surface B1 of frame B in fig. 1 extends into the contour groove 20.

In some preferred embodiments, the tool bottom plate 10 is provided as a split structure to reduce the difficulty in producing the tool, and specifically, the tool bottom plate 10 includes a tool outer bottom plate 11 and a tool inner bottom plate 12, a groove is formed on the upper surface of the tool outer bottom plate 11, the tool inner bottom plate 12 is arranged in the groove, and an interval is formed between the outer wall of the tool inner bottom plate 12 and the inner wall of the groove to serve as the profiling groove 20.

The structural style of the split type tool bottom plate 10 is that the outer bottom plate 11 of the tool and the inner bottom plate 12 of the tool are connected and fixed through bolts, the inner bottom plate 12 of the tool can be replaced, and the adaptability in a use scene is stronger.

In the box under the battery package, because water-cooling board A is bigger for frame B's size specification, when the box is on placing the frock under in order to guarantee the battery package, can realize leveling, play good supporting effect and effect, the deformation that appears when avoiding water-cooling board A unsettled, not atress and unstability, surface vertical is provided with a plurality of supporting water-cooling board's support 30 on frock bottom plate 10, in order to guarantee support piece 30 to water-cooling board A's support atress angle, and under this angle, the bonding tool pressure direction when with the welding suits, avoid the unstability that the atress disequilibrium brought.

In the concrete implementation process, the work piece of different models has the different condition of specification, in order to guarantee the utility model is suitable for a work piece of different specifications to when making the work piece place on the frock bottom plate 10, can place stably, avoid unsettled. Therefore, the utility model discloses be provided with a plurality of support piece 30, and the equal threaded connection of lower extreme in the upper surface of frock bottom plate 10 of a plurality of support piece 30.

When the tool is used specifically, the supporting member 30 is rotated, so that the supporting member 30 moves axially, the upper end surface of the supporting member is raised or lowered, and the workpiece is abutted by the upper end of the supporting member 30, thereby being suitable for workpieces of different models.

In some preferred embodiments, in order to provide a larger supporting surface for the workpiece and facilitate adjustment of the supporting member 30, the supporting member 30 includes a supporting rod 31 and a supporting head 32, a lower end of the supporting rod 31 is screwed to an upper surface of the tool bottom plate 10, the supporting head 32 is disposed at an upper end of the supporting rod 31, the supporting head 32 is plate-shaped, and an upper surface of the supporting head 32 is a supporting plane for supporting the water cooling plate.

Further, in some preferred embodiments, the number of the supporting members 30 is at least one, and specifically, may be four as shown in fig. 3. When the tool bottom plate is used specifically, the support piece 30 is rotated to adjust the distance between the upper end face of the support piece 30 and the upper surface of the tool bottom plate 10, so that the height of the tool bottom plate is adjusted to adapt to different workpieces.

In order to clamp the workpiece arranged on the tool base plate 10, two opposite end parts of the tool base plate 10 are respectively provided with a first fixing component I, and the clamping and fixing of the workpiece at an angle can be completed through the first fixing components I. Two first fixing assemblies I which are arranged at two opposite end parts on the tooling bottom plate 10 and are opposite in position are regarded as a group. In a specific embodiment, the present invention at least includes a set of the first fixing assembly I.

Based on the same design principle, two opposite side edges of the tooling bottom plate 10 are respectively provided with a second fixing component II so as to clamp and fix the workpiece at another angle through the second fixing components II. With the count mode of above-mentioned first fixed subassembly I, will set up on frock bottom plate 10 relative two sides and two fixed subassemblies II of second that the position is relative as a set of, the utility model discloses in at least including the fixed subassembly II of a set of above-mentioned second. As shown in fig. 3, in one embodiment, a set of second fixing members II is used.

Specifically, the first fixing assembly I and the second fixing assembly II both include adjusting rods 50 which are perpendicular to the tooling bottom plate 10 and can move vertically, and the two adjusting rods 50 which are opposite in position are connected through a pressing plate 60, so that the adjusting rods 50 move downwards to drive the pressing plate 60 to move downwards, and further compress the lower box body of the battery pack, and thus, the workpiece is clamped.

Further, in some preferred embodiments, the lower end of the adjusting rod 50 is formed with a screw thread, and the upper surface of the fixed seat plate 70 is formed with a screw hole, and the lower end of the adjusting rod 50 extends into the screw hole to realize screw-thread fit, thereby realizing vertical movement of the adjusting rod 50. The distance fine adjustment can be conveniently realized through threaded fit. In particular implementations, the determined fine-tuning relationship may be formed by determining the number of rotations of the adjustment lever 50 and the distance of the vertical precession.

Further, in some preferred embodiments, the upper end of the adjusting rod 50 is formed with an adjusting rod head 51 having an outer diameter larger than that of the lower end thereof, the pressure plate 60 is formed with a through hole, the adjusting rod 50 is inserted into the through hole from top to bottom, and the pressure plate 60 is limited by the adjusting rod head 51. The pressing plate 60 is limited and adjusted through the formed adjusting rod head 51, and the pressing plate 60 is pushed to move downwards, so that the workpiece is clamped.

In some preferred embodiments, the first fixing assembly I and the second fixing assembly II each include a fixing seat plate 70, the fixing seat plate 70 is fixedly connected to the edge of the tool bottom plate 10, and the adjusting rod 50 is connected to the fixing seat plate 70.

In order to avoid abrasion caused by contact between the fixed seat plate 70 and the tooling bottom plate 10, the first fixed component I and the second fixed component II further comprise a cushion block 40, and the cushion block 40 is arranged between the fixed seat plate 70 and the tooling bottom plate 10.

Further, in some preferred embodiments, in order to make the connection between the fixing seat plate 70 and the tool bottom plate 10 more firm and stable, a bayonet is formed on the fixing seat plate 70, the edge of the tool bottom plate 10 is snapped into the bayonet of the fixing seat plate 70, and the fixing seat plate 70 is fixed to the tool bottom plate 10 by a bolt.

Further, in order to further stabilize the connection between the fixing seat plate 70 and the tooling bottom plate 10, a convex pattern is provided on the inner wall of the bayonet of the fixing seat plate 70 and the surface of the tooling bottom plate 10 where the fixing seat plate 70 is provided. The friction is increased by providing the ribs.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a box friction stir welding frock under battery package which characterized in that: the fixture comprises a fixture bottom plate (10), wherein an imitated groove (20) used for placing a frame of a lower box body of a battery pack is formed in the upper surface of the fixture bottom plate (10), at least one supporting piece (30) used for supporting a water cooling plate is vertically arranged on the upper surface of the fixture bottom plate (10), and the supporting piece (30) is in threaded connection with the upper surface of the fixture bottom plate (10) so that the distance between the upper end surface of the supporting piece (30) and the upper surface of the fixture bottom plate (10) can be adjusted by rotating the supporting piece (30);

two opposite ends of the tooling bottom plate (10) are respectively provided with a first fixing assembly (I), two opposite sides of the tooling bottom plate (10) are respectively provided with a second fixing assembly (II), the first fixing assembly (I) and the second fixing assembly (II) respectively comprise a vertical adjusting rod (50) which is perpendicular to the tooling bottom plate (10) and can move vertically, the two opposite adjusting rods (50) are connected through a pressing plate (60), and the pressing plate (60) moves downwards to be driven through the downward movement of the adjusting rods (50), so that the battery pack lower box body is pressed.

2. The friction stir welding tool for the lower box body of the battery pack according to claim 1, characterized in that: the tool bottom plate (10) comprises a tool outer bottom plate (11) and a tool inner bottom plate (12), a groove is formed in the upper surface of the tool outer bottom plate (11), the tool inner bottom plate (12) is arranged in the groove, the outer wall of the tool inner bottom plate (12) forms an interval with the inner wall of the groove to serve as the profiling groove (20).

3. The friction stir welding tool for the lower box body of the battery pack according to claim 1, characterized in that: the first fixing component (I) and the second fixing component (II) respectively comprise a fixing seat plate (70), the fixing seat plate (70) is fixedly connected to the edge of the tool bottom plate (10), and the adjusting rod (50) is connected to the fixing seat plate (70).

4. The friction stir welding tool for the lower box body of the battery pack according to claim 3, characterized in that: the fixture base plate is characterized in that a bayonet is formed in the fixture base plate (70), the edge of the fixture base plate (10) is clamped into the bayonet of the fixture base plate (70), and the fixture base plate (70) is fixed to the fixture base plate (10) through bolts.

5. The friction stir welding tool for the lower box body of the battery pack according to claim 4, characterized in that: the lower end of the adjusting rod (50) forms threads, a threaded hole is formed in the upper surface of the fixing seat plate (70), and the lower end of the adjusting rod (50) extends into the threaded hole to achieve threaded fit, so that the adjusting rod (50) can move vertically.

6. The friction stir welding tool for the lower box body of the battery pack according to claim 5, characterized in that: the upper end of the adjusting rod (50) forms an adjusting rod head (51) with the outer diameter larger than the lower part of the adjusting rod, a through hole is formed in the pressing plate (60), the adjusting rod (50) is inserted into the through hole from top to bottom, and the pressing plate (60) is limited through the adjusting rod head (51).

7. The friction stir welding tool for the lower box body of the battery pack according to claim 1, characterized in that: support piece (30) include bracing piece (31) and support head (32), the lower extreme threaded connection of bracing piece (31) in the upper surface of frock bottom plate (10), the upper end of bracing piece (31) sets up support head (32), support head (32) are the slabby, just the upper surface of supporting the head is for being used for supporting the support plane of water-cooling plate.

8. The friction stir welding tool for the lower box body of the battery pack according to claim 1, characterized in that: the battery pack lower box body friction stir welding tool comprises a tool bottom plate (10), a first fixing component (I), a second fixing component (I), a battery pack lower box body friction stir welding tool body and a third fixing component (II).

9. The friction stir welding tool for the lower box body of the battery pack according to claim 1, characterized in that: the battery pack lower box body friction stir welding tool comprises a tool bottom plate (10), two second fixing assemblies (II) which are opposite in position are a group of second fixing assemblies (II), and the battery pack lower box body friction stir welding tool at least comprises a group of second fixing assemblies (II).