Welding seam sampling and cutting equipment for aluminum alloy shell of power battery

Abstract

The utility model provides a welding seam sampling and cutting device for a power battery aluminum alloy shell, which comprises a device body, a first cutting machine, a second cutting machine and an automatic rotating working table, and the first cutting machine and the second cutting machine which are parallel to each other are arranged on an operation table of the device body. Automatic rotating workbenches are assembled on the operation table surfaces, corresponding to the first cutting machine and the second cutting machine, of the equipment body; the aluminum alloy shell of the power battery is stably clamped through the symmetrically arranged clamps, the situation that in the single-direction clamping and cutting process of the aluminum alloy shell of the power battery, fierce resonance can cause weld joint breakage to a locally-cut weld joint is avoided, and the aluminum alloy shell clamping and cutting device is more practical and saves time and labor. And moreover, the clamps and the storage rack adopt a magnetic attraction and clamping mode, so that the clamps can be quickly switched when different positions such as four corners and side surfaces of the aluminum alloy shell of the battery are cut.

Description

Technical Field

[0001] The utility model relates to a weld sampling and cutting device for an aluminum alloy shell of a power battery, belonging to the field of mechanical processing equipment. Background Art

[0002] Most power battery aluminum alloy shells are formed in one piece by a mold or welded together with multiple metal plates. Welding is the process of connecting metal parts together by heating or pressurizing, or a combination of both. Since power battery aluminum alloy shells have relatively high requirements for air tightness, they need to be tested for air tightness. Air tightness testing is mostly carried out using the entire equipment, which occupies a large area. The existing production process is to use the equipment to cut off a part of the weld of the power battery aluminum alloy shell, grind and test the weld to detect whether the welding process is complete and reliable.

[0003] The prior art discloses an application number CN201620157587.1, and the name of the patent application is a portable minimally invasive sampling machine, which discloses that it includes an air compressor, an air pipe, an arc milling cutter, an air motor, a swing mechanism, an adjustment mechanism, a fixed support and a locking chain, and the entire machine is fixed on the sample to be sampled by the fixed support and the locking chain. The technical aspects of this utility model are aimed at in-service equipment at high temperatures, and can cut tiny samples from in-service equipment efficiently and with minimal damage, without damaging the metal material structure. It can also be applied to sensitive parts such as welds or heat-affected zones that are difficult to sample and analyze, and to the sampling of materials in equipment and pipelines that do not have destructive sampling conditions, thereby solving the problem of material performance evaluation of in-service equipment.

[0004] However, if the above equipment is used for cutting welds of aluminum alloy shells, it cannot guarantee that the vibration caused by cutting will not cause secondary damage to the welds.

[0005] Therefore, the utility model provides a weld sampling and cutting device for a power battery aluminum alloy shell with bidirectional fixation and automatic rotation. Utility Model Content

[0006] In view of this, the purpose of the present utility model is to provide a weld sampling and cutting device for a power battery aluminum alloy shell with bidirectional fixation and automatic rotation.

[0007] The utility model is achieved in this way:

[0008] A weld sampling and cutting device for a power battery aluminum alloy casing includes a device body, a first cutting machine, a second cutting machine, and an automatic rotating worktable. The operating table of the device body is provided with two mutually parallel first and second cutting machines. The operating tables of the device body corresponding to the first and second cutting machines are both equipped with automatic rotating worktables.

[0009] The automatic rotating workbench includes an electric rotating platform, a storage platform, a storage rack, and a clamp. The electric rotating platform is equipped with a rotating storage platform. The clamp is clamped on the side of the storage platform by the storage rack. There are two clamps, which are symmetrically arranged.

[0010] As a further improvement, the storage rack includes a mounting part, a limiting part, and a magnetic plate. The limiting part is a polyhedron with a top surface and side openings composed of several rectangular plates. A magnetic plate is fixed in the middle of the limiting part, and a mounting part is vertically fixed at the bottom end of the limiting part. The mounting part is assembled on the side of the storage platform by screws or bolts.

[0011] As a further improvement, the clamp includes a connecting plate, a supporting plate, a clamping plate, and second bolts. The supporting plate is vertically provided on the bottom surface of the front end of the connecting plate, and the clamping plate is locked to the supporting plate by a plurality of second bolts.

[0012] As a further improvement, a slot is provided at the tail end of the connecting plate, and the slot of the connecting plate matches the magnetic plate on the storage rack.

[0013] As a further improvement, the supporting plate and the clamping plate both have V-shaped bending portions, and the bending portions of the two are arranged opposite to each other.

[0014] As a further improvement, a plurality of protrusions are provided on the end surface of the bent portion.

[0015] As a further improvement, the shelf is provided with a convex strip near the fixed end of the connecting plate, so that a slot is formed between the connecting plate and the convex strip; the head end of the clamping plate corresponding to the slot is adapted.

[0016] The beneficial effects of the present invention are as follows: the present invention stably clamps the power battery aluminum alloy shell through the symmetrically arranged clamps, avoiding the power battery aluminum alloy shell being clamped in one direction, which may cause severe resonance to the weld being partially cut during the cutting process, causing the weld to break. The present invention is more practical, and the clamp and the storage rack of the present invention adopt a magnetic attraction and a card-locking method, so the clamp can be quickly switched when cutting different positions of the battery aluminum alloy shell, such as the four corners, sides, etc.; an electric rotating platform is used for automatic rotation, thereby improving the level of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a schematic structural diagram of a device for sampling and cutting welds of an aluminum alloy shell of a power battery provided in an embodiment of the present invention.

[0019] Figure 2 The present invention is a partial structural diagram of an automatic rotating worktable of a weld sampling and cutting device for an aluminum alloy shell of a power battery provided by an embodiment of the present invention.

[0020] Figure 3 This is a structural schematic diagram of an automatic rotating worktable in an assembled state for a weld sampling and cutting device for an aluminum alloy shell of a power battery provided by an embodiment of the utility model.

[0021] Figure 4 The present invention provides a schematic diagram of a fixture structure for a weld sampling and cutting device for an aluminum alloy shell of a power battery.

[0022] Figure 5 The present invention provides a schematic diagram of a rack structure for a device for sampling and cutting welds of an aluminum alloy shell of a power battery. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0025] Reference Figure 1-Figure 5As shown, this embodiment provides a specific implementation method for a weld sampling and cutting device for a power battery aluminum alloy shell, including a device body 10, a first cutting machine 20, a second cutting machine 30, and an automatic rotating workbench 40. The operating table of the device body 10 is provided with two mutually parallel first cutting machines 20 and second cutting machines 30, and the operating tables of the device body 10 corresponding to the first cutting machine 20 and the second cutting machine 30 are equipped with automatic rotating workbenches 40; wherein, the first cutting machine 20 and the second cutting machine 30 are used for cutting the power battery aluminum alloy shell.

[0026] The automatic rotating workbench 40 includes an electric rotating platform 401, a storage platform 402, a storage rack 403, and a clamp 404. The electric rotating platform 401 is equipped with a rotating storage platform 402, and a clamp 404 is clamped on the side of the storage platform 402 by the storage rack 403. There are two clamps 404, which are symmetrically arranged. The electric rotating platform is a device that realizes the rotation of an object through electric drive. It integrates core components such as a motor, a reducer, and a controller, and can accurately control the rotation angle, speed and acceleration.

[0027] The utility model stably clamps the power battery aluminum alloy shell through the symmetrically arranged clamps 404, avoiding the power battery aluminum alloy shell being clamped in one direction. During the cutting process, the violent resonance will cause the weld being partially cut to break, which is more practical.

[0028] Furthermore, the clamp 404 and the rack 403 of the present invention adopt a magnetic attraction and a snap-fit method, and the clamps can be quickly switched when cutting different positions of the battery aluminum alloy shell, such as the four corners and the sides, as follows:

[0029] Among them, the storage rack 403 includes a mounting portion 431, a limiting portion 432, and a magnetic plate 433. The limiting portion 432 is a polyhedron with a top surface and side openings composed of several rectangular plates. A magnetic plate 433 is fixed in the middle of the limiting portion 432, and a mounting portion 431 is vertically fixed to the bottom end of the limiting portion 432. The mounting portion 431 is assembled on the side of the storage platform 402 by screws or bolts.

[0030] like Figure 5 As shown, the magnetic plate 433 is set in the middle, and the left and right sides are limited by the magnetic plate 433. The center of gravity is also in the middle. During the rotation driven by the electric rotating platform 401, there will be no shaking due to centrifugal motion, and the stability is further improved.

[0031] Among them, the clamp 404 includes a connecting plate 441, a supporting plate 442, a clamping plate 443, and a second bolt 444. The supporting plate 442 is vertically arranged on the bottom surface of the head end of the connecting plate 441. The clamping plate 443 is locked to the supporting plate 442 by a number of second bolts 444. The aluminum alloy shell of the power battery can be fixed between the clamping plate 443 and the supporting plate 442.

[0032] Furthermore, a slot 441-1 is formed at the rear end of the connecting plate 441, and the slot 441-1 of the connecting plate 441 cooperates with the magnetic plate 433 on the storage rack 403, magnetically engaging to achieve bolt-free and screw-free assembly and disassembly, wherein the magnetic plate 433 is made of magnetic material.

[0033] In one specific embodiment, the support plate 442 and the clamping plate 443 both have a V-shaped bending portion 445, and the bending portions 445 of the two are arranged relative to each other. The weld cutting surfaces of the power battery aluminum alloy shell are different, and they can be clamped and fixed if they are at a corner position.

[0034] Furthermore, a plurality of protrusions are provided on the end surface of the bending portion 445 to increase the friction with the material, thereby improving the smoothness of the material during use.

[0035] Among them, the storage rack 403 is provided with a protrusion 441-2 near the fixed end of the connecting plate 441, so that a card slot is formed between the connecting plate 441 and the protrusion 441-2; the head end of the clamping plate 443 corresponding to the card slot is adapted to this, which facilitates the precise docking and engagement of the clamping plate 443 on the connecting plate 441.

[0036] In one specific embodiment, the height of the protrusion 441 - 2 is no more than 3 mm, so as to prevent the protrusion 441 - 2 from being too high and being unable to clamp the aluminum alloy shell of the power battery.

[0037] The present invention further comprises a display screen 50 and a cylinder 60 for controlling the operation of the first cutting machine 20 and the second cutting machine 30 . The display screen 50 is connected to the cylinder 60 and the electric rotating platform 401 by signals.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A weld sampling and cutting device for a power battery aluminum alloy shell, characterized in that: The invention comprises an equipment body (10), a first cutting machine (20), a second cutting machine (30), and an automatic rotating worktable (40); the operating table of the equipment body (10) is provided with two mutually parallel first cutting machines (20) and second cutting machines (30); the operating table of the equipment body (10) corresponding to the first cutting machine (20) and the second cutting machine (30) is equipped with an automatic rotating worktable (40); The automatic rotating workbench (40) comprises an electric rotating platform (401), a storage platform (402), a storage rack (403), and a clamp (404). The electric rotating platform (401) is equipped with a rotatable storage platform (402). The clamp (404) is clamped on the side of the storage platform (402) by the storage rack (403). The number of the clamps (404) is two and they are symmetrically arranged.

2. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 1, characterized in that: The storage rack (403) comprises a mounting portion (431), a limiting portion (432), and a magnetic plate (433). The limiting portion (432) is a polyhedron with a top surface and side openings formed by a plurality of rectangular plates. A magnetic plate (433) is fixed in the middle of the limiting portion (432). The mounting portion (431) is vertically fixed to the bottom end of the limiting portion (432). The mounting portion (431) is assembled on the side of the storage platform (402) by screws or bolts.

3. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 1, characterized in that: The clamp (404) includes a connecting plate (441), a supporting plate (442), a clamping plate (443), and a second bolt (444). The supporting plate (442) is vertically arranged on the bottom surface of the head end of the connecting plate (441), and the clamping plate (443) is locked to the supporting plate (442) by a plurality of second bolts (444).

4. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 3, characterized in that: A slot (441-1) is provided at the tail end of the connecting plate (441), and the slot (441-1) of the connecting plate (441) matches the magnetic plate (433) on the storage rack (403).

5. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 3, characterized in that: The supporting plate (442) and the clamping plate (443) both have V-shaped bending portions (445), and the bending portions (445) of the two are arranged opposite to each other.

6. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 5, characterized in that: A plurality of protrusions are provided on the end surface of the bending portion (445).

7. The weld sampling and cutting equipment for the power battery aluminum alloy shell according to claim 4, characterized in that: The storage rack (403) is provided with a convex strip (441-2) near the fixed end of the connecting plate (441), so that a slot is formed between the connecting plate (441) and the convex strip (441-2); the head end of the clamping plate (443) is adapted to the slot.

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