FSW machining tool for battery pack box body

Abstract

The utility model relates to the technical field of battery pack production, in particular to a battery pack box FSW machining tool which comprises a turnover tool reference platform, two rows of parallel sliding rails are arranged on the tool reference platform, two rows of parallel gantry clamping frames are arranged on the parallel sliding rails, opposite pressurizing mechanisms are arranged on the two sides of the two rows of parallel gantry clamping frames, and the opposite pressurizing mechanisms are arranged on the tool reference platform. The distance between the two rows of gantry clamping frames is variable; the two ends of the parallel sliding rails are connected through the rotating mechanism, the rotating mechanism comprises a circular rail and a rotating frame movably connected with the middle of the circular rail, the opposite pressurizing mechanism is fixedly connected with the rotating frame, the gantry clamping frame comprises supporting legs and a truss, the truss is movably connected with a main clamping mechanism, and the main clamping mechanism comprises clamping air cylinders which are oppositely installed. The clamping cylinder is connected with a clamping plate; the main clamping mechanism, the downward pressing clamping mechanism and the horizontal pushing clamping mechanism are combined to fix a battery pack box body weldment, so that the battery pack box body weldment is prevented from moving or shaking in the machining process; the tool reference platform drives the battery pack box body to turn over, and processing of the front face and the back face is rapidly connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack production technical field especially is battery pack box FSW processing frock. BACKGROUND

[0002] The processing quality of battery pack box is important to the overall performance of battery pack. FSW (Friction Stir Welding) is an advanced welding technology, which has the advantages of high welding quality, small deformation, strong sealing and low residual stress, and has been widely used in the processing of battery pack box. As an important auxiliary equipment in the processing of FSW, the welding frock directly affects the welding quality and efficiency. Therefore, exploring the innovative direction of FSW welding frock design is of great significance to improve the quality and reduce the production cost.

[0003] The frock with inaccurate positioning, uneven clamping force and inconvenient operation will affect the processing quality and production efficiency of battery pack box. UTILITY MODEL CONTENT

[0004] The utility model aims at providing battery pack box FSW processing frock, which realizes efficient and stable processing of battery pack box through structural optimization design.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The battery pack box FSW processing frock comprises a reversible frock reference platform, the frock reference platform is provided with two rows of parallel sliding rails, the parallel sliding rails are provided with two rows of parallel gantry clamps, the two sides of the two rows of parallel gantry clamps are provided with opposite pressing mechanisms, and the distance between the two rows of gantry clamps is variable.

[0007] Further, the gantry clamp comprises connected legs and trusses, the trusses are movably connected with main clamping mechanisms, the main clamping mechanisms comprise matched clamping cylinders, the movable rods of the clamping cylinders are connected with clamping plates at the tail ends, and the movement directions of the two clamping plates on the same main clamping mechanism are kept opposite.

[0008] Further, the height of the clamping plate is lower than that of the clamping cylinder, and the movement direction of the movable rod of the clamping cylinder is perpendicular to the clamping plate.

[0009] Further, the gantry clamp is provided with a downward clamping mechanism and a horizontal pushing clamping mechanism.

[0010] Further, the opposite pressing mechanism comprises a push cylinder, and an active rod end of the push cylinder is connected to a truss on the gantry clamp.

[0011] Further, the bottom of the gantry clamp is connected to parallel slide rails through a sliding block.

[0012] Further, ≥2 main clamping mechanisms are arranged on the single-column gantry clamp, and the opposite pressing mechanism corresponds to the gantry clamp one by one.

[0013] Further, the opposite pressing mechanism is synchronously flipped with the gantry clamp.

[0014] Further, the single pushing force of the push cylinder is ≥350N.

[0015] The beneficial effects of the technical scheme of the utility model are as follows:

[0016] The battery pack box FSW machining tool provided by the utility model has a reasonable structure, and the combination of the main clamping mechanism, the downward pressing clamping mechanism and the flat pushing clamping mechanism can firmly fix the battery pack box welding part, so that movement or shaking of the battery pack box welding part in the welding process is prevented.

[0017] The battery pack box FSW machining tool provided by the utility model is provided with a rotating frame, so that the welding battery pack box can be flipped with the tool reference platform, the welding of the front and back surfaces is quickly connected, and the machining efficiency is improved.

[0018] The battery pack box FSW machining tool provided by the utility model has a movable structure, can be adjusted according to the shape and size of different welding objects, has a wider application range, has high tool reuse rate, has high universality, and reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the drawings without creative labor.

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is Figure 1 It is an enlarged schematic view of position A in the middle;

[0022] Figure 3 It is Figure 1 It is an enlarged schematic view of position B in the middle;

[0023] Figure 4 It is the overhead structure schematic view of the utility model.

[0024] Figure 5 It is the main clamping mechanism schematic view in the utility model.

[0025] In the drawing: 1: tool datum platform; 1a: parallel slide rail; 1b: gantry clamp frame; 1b-1: support leg; 1b-2: truss; 1b-3: main clamping mechanism; 1b-301: clamping cylinder; 1b-302: clamping plate; 1b-4: downward pressing clamping mechanism; 1b-5: flat push clamping mechanism; 1c: opposite pressing mechanism; 2: rotating mechanism; 2a: circular rail; 2b: rotating frame. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic views, just illustrate the basic structure of the utility model in a schematic way, so it just shows the structure related to the utility model. The utility model is described in detail by structure schematic view, and the schematic view is just an example, which should not limit the protection scope of the utility model here.

[0027] Please refer to Figures 1 to 5 , embodiment: battery pack box FSW processing tool, including the tool datum platform 1 that can overturn, tool datum platform 1 is provided with two parallel slide rails 1a, is provided with two parallel gantry clamp frames 1b on two parallel slide rails 1a, the both sides of two parallel gantry clamp frames 1b are provided with opposite pressing mechanism 1c, and the interval of two gantry clamp frames 1b is variable;Two ends of parallel slide rail 1a are connected by rotating mechanism 2, and rotating mechanism 2 includes circular rail 2a and rotating frame 2b movably connected in the middle of circular rail 2a, and opposite pressing mechanism 1c is connected and fixed with rotating frame 2b, and opposite pressing mechanism 1c overturns synchronously with gantry clamp frame 1b, and rotating frame 2b realizes that tool datum platform 1 overturns with welding battery pack box.

[0028] Specifically, gantry clamp frame 1b includes connected support leg 1b-1 and truss 1b-2, main clamping mechanism 1b-3 is movably connected on truss 1b-2, more than two main clamping mechanisms 1b-3 are arranged on single column gantry clamp frame 1b, main clamping mechanism 1b-3 includes opposite clamping cylinder 1b-301, the movable rod end of clamping cylinder 1b-301 is connected with clamping plate 1b-302, the movement direction of two clamping plates 1b-302 on the same main clamping mechanism 1b-3 remains opposite, and the close movement of two clamping plates 1b-302 realizes the clamping of battery pack box. The height of clamping plate 1b-302 is lower than that of clamping cylinder 1b-301, and the movement direction of the movable rod of clamping cylinder 1b-301 is perpendicular to clamping plate 1b-302, as shown in Figure 2 、 Figure 3As shown, the gantry clamp 1b is also provided with a downward clamping mechanism 1b-4 and a horizontal pushing clamping mechanism 1b-5, and the power sources of the two are both air cylinders; the combination of the main clamping mechanism 1b-3, the downward clamping mechanism 1b-4 and the horizontal pushing clamping mechanism 1b-5 can firmly fix the battery pack box welding part, so that movement or shaking during welding is prevented, which helps to ensure that the quality of the welding joint is uniform and consistent, and welding defects are avoided.

[0029] In the embodiment, the counter-pressure mechanism 1c corresponds to the gantry clamp 1b one by one, the counter-pressure mechanism 1c includes a push cylinder, the single thrust of the push cylinder is greater than or equal to 350N, the movable rod of the push cylinder is connected to the truss 1b-2 on the gantry clamp 1b, the bottom of the gantry clamp 1b is connected to the parallel sliding rail 1a through a sliding block, and the gantry clamp 1b is close to the moving bidirectional clamping force, so as to ensure that the battery pack box welding joint is tightly and neatly butt-jointed.

[0030] In addition, the circular rail 2a is provided with a ring-shaped rack, the rotating frame 2b is connected with a gear driven by a motor, the gear is meshed with the ring-shaped rack for transmission, the rotating frame 2b carries the workpiece reference platform 1 to realize overturning, and then the face welding is realized, and the front and back face welding is smoothly connected.

[0031] The use process of the battery pack box FSW machining tool of the utility model is as follows: the battery pack boxes to be connected are placed on the gantry clamp 1b, fixed by the combination of the main clamping mechanism 1b-3, the downward clamping mechanism 1b-4 and the horizontal pushing clamping mechanism 1b-5, then the counter-pressure mechanism 1c pushes the two parallel gantry clamps 1b to be close to each other, the welding joint of the battery pack box is tightly butt-jointed, and the push cylinder is pressed; then the FSW welding equipment is started, and welding operation is carried out. In the welding process, the welding parameters are monitored by a sensor, and the welding process is adjusted in time if necessary; after the front welding is completed, the rotating frame 2b rotates based on the circular rail 2a to realize the face welding; after the front and back face welding is completed, the clamping mechanisms are loosened, the gantry clamps 1b are moved away, and the processed battery pack box is taken out.

[0032] In the above process, in order to ensure the welding processing effect and stability, the welding process flow needs to be strictly followed. At the same time, the welding quality needs to be detected to ensure that the welding seam quality meets the standard. Generally, the detection methods include visual detection, X-ray detection and ultrasonic detection.

[0033] The aluminum alloy battery package shell has the characteristics of good weight reduction effect and long service life, can be applied to new energy vehicles, improves the energy density of the battery package, prolongs the cruising range, the frame and the bottom plate are the bearers of the battery module, and the strength requirement is relatively high. The FSW welding is to insert a special-shaped stirring head into the welded parts rotating, move forward along the welding interface, heat the welding materials to the hot plastic state through the stirring and friction of the materials, under the driving of the high-speed rotation of the stirring head, the materials in the plastic state are transferred from front to back around the stirring head, and the materials are diffused and connected to form a dense intermetallic solid phase connection through the extrusion of the stirring head to the welded metal.

[0034] When the FSW processing is performed, the special processing tool can guarantee the precision and stability of the welding, the utility model can firmly fix the welding part, prevent moving or shaking in the welding process, ensure that the quality of the welded joint is uniform, and avoid welding defects. The utility model has many movable structures, can be adjusted according to the shape and size of different welding objects, realizes a wider application range, has high reusability, reduces production cost, realizes that the front welding is completed and then the back welding is continued, reduces manual intervention, and improves processing efficiency.

[0035] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, it should be pointed out that, for the person skilled in the art, on the premise of not departing from the utility model concept, related changes, modifications or additions should belong to the protection scope of the utility model.

Claims

1. A battery pack case FSW processing tooling, characterized by: Including the reversible tool reference platform (1), the tool reference platform (1) is provided with two parallel slide rails (1a), the parallel slide rails (1a) are provided with two parallel gantry clamps (1b), two parallel gantry clamps (1b) are provided with opposite pressing mechanisms (1c) on both sides, the distance of two gantry clamps (1b) is variable; Both ends of the parallel slide rail (1a) are connected by a rotating mechanism (2), the rotating mechanism (2) includes a circular track (2a) and a rotating frame (2b) movably connected in the circular track (2a), the opposite pressing mechanism (1c) is connected and fixed with the rotating frame (2b).

2. The battery pack enclosure FSW tooling package of claim 1, wherein: The gantry clamp (1b) includes connected legs (1b-1) and trusses (1b-2), the trusses (1b-2) movably connect main clamping mechanisms (1b-3), the main clamping mechanisms (1b-3) include opposite clamping cylinders (1b-301), the movable rod end of the clamping cylinder (1b-301) is connected with a clamping plate (1b-302), the movement direction of the two clamping plates (1b-302) on the same main clamping mechanism (1b-3) remains opposite.

3. The battery pack enclosure FSW tooling package of claim 2, wherein: The height of the clamping plate (1b-302) is lower than that of the clamping cylinder (1b-301), and the moving direction of the movable rod of the clamping cylinder (1b-301) is perpendicular to the clamping plate (1b-302).

4. The battery pack enclosure FSW tooling package of claim 1, wherein: The gantry clamp (1b) is provided with a downward clamping mechanism (1b-4) and a horizontal pushing clamping mechanism (1b-5).

5. The battery pack enclosure FSW tooling package of claim 2, wherein: The opposite pressing mechanism (1c) includes a pushing cylinder, and the movable rod end of the pushing cylinder is connected with the truss (1b-2) on the gantry clamp (1b).

6. The battery pack enclosure FSW tooling package of claim 1, wherein: The bottom of the gantry clamp (1b) is connected with the parallel slide rail (1a) through a sliding block.

7. The battery pack enclosure FSW tooling package of claim 5, wherein: The single-column gantry clamp (1b) is provided with ≥2 main clamping mechanisms (1b-3), and the opposite pressing mechanism (1c) corresponds to the gantry clamp (1b) one by one.

8. The battery pack enclosure FSW tooling package of claim 7, wherein: The opposite pressing mechanism (1c) is synchronized with the gantry clamp (1b) to flip.

9. The battery pack enclosure FSW tooling package of claim 5, wherein: The single pushing force of the pushing cylinder is ≥350N.

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