CN222971217U - A three-plate aluminum alloy profile friction stir welding welding fixture - Google Patents

Abstract

The utility model provides a friction stir welding jig for aluminum alloy profiles spliced with three plates, including a panel, the middle of the panel is set as a reference plane, and the two sides are set as pre-deformation planes, a fixed support seat is installed at the bottom of the panel, a base is set below the panel, and a plurality of support blocks are fixedly connected to the top of the base at equal intervals, and the plurality of support blocks are all located below the panel, and one of the support blocks is fixedly connected to a rotating shaft near the side wall of the fixed support seat, and the end of the rotating shaft away from the support block is rotatably clamped inside the opening of the fixed support seat. Through the design of the pre-deformation plane, the jig can pre-adjust the position of the workpiece before welding to compensate for the deformation that may occur during the welding process. This design ensures that the flatness of the workpiece is well maintained after welding is completed, effectively avoids the problem of uneven workpiece after welding, and significantly improves the accuracy and overall quality of welding.

Description

Friction stir welding jig for three-plate spliced aluminum alloy section bar

Technical Field

The utility model relates to the technical field of welding jigs, in particular to a friction stir welding jig for three-plate spliced aluminum alloy sections.

Background

In the manufacturing process of the current aluminum alloy section battery energy storage box body, the volume of the aluminum alloy section battery energy storage box body is generally larger, the weight of the body is required to be light on the basis of meeting the strength and the performance, the box body is enabled to develop towards a thin direction, deformation caused by welding pressure in the welding process is larger and larger, a subsequent correction procedure is required to be adopted to finish a shaping tool of a workpiece, the procedure is complicated, correction is difficult, poor heat dissipation of a battery caused by poor flatness of a bottom plate of the workpiece is solved, the welding efficiency is improved, the weld quality and the welding flatness are improved, and the development of a high-efficiency, high-quality and economical and applicable tool is particularly important.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a friction stir welding jig for three-plate spliced aluminum alloy profiles.

In order to achieve the purpose, the three-plate spliced aluminum alloy section friction stir welding jig comprises a panel, wherein the middle of the panel is set to be a datum plane, the two sides of the panel are set to be predeformation planes, a fixed supporting seat is arranged at the bottom of the panel, a base is arranged below the panel, a plurality of supporting blocks are fixedly connected to the top of the base at equal intervals, the plurality of supporting blocks are all arranged below the panel, one of the supporting blocks is fixedly connected with a rotary shaft close to the side wall of the fixed supporting seat, one end of the rotary shaft, far away from the supporting block, is rotatably clamped in an opening of the fixed supporting seat, two groups of clamping corner cylinders are arranged at the bottoms of the two sides of the panel, the supporting blocks are all arranged between the two groups of clamping corner cylinders, a plurality of jacking cylinders are fixedly connected to the tops of the base and are respectively arranged on one sides of the supporting blocks, a plurality of pin shafts are fixedly connected to the movable ends of the jacking cylinders, a plurality of supporting connecting seats are fixedly connected to the bottoms of the panel at equal intervals, a plurality of the supporting pins are respectively connected to the tops of the positioning pins, and the two sides of the positioning pins are respectively arranged at the two sides of the panel.

Preferably, the number of the clamping corner oil cylinders and the locating pins is 8, the number of the supporting blocks is 3, and the number of the top support oil cylinders and the supporting connecting seats is 6.

Preferably, the clamping corner oil cylinder and the jacking oil cylinder are connected with a hydraulic pump through pipelines.

Preferably, the plurality of support connecting seats are symmetrically arranged at the bottoms of the pre-deformation planes at two sides of the panel respectively.

The utility model has the following beneficial effects:

1. According to the friction stir welding jig for the three-plate spliced aluminum alloy section, through the design of the pre-deformation plane, the position of a workpiece can be adjusted in advance before welding so as to compensate deformation possibly generated in the welding process. The design ensures that the planeness of the workpiece after welding is well maintained, effectively avoids the problem of uneven workpiece after welding, and remarkably improves the welding precision and the whole quality. The arrangement of the pre-deformation amount not only keeps the flatness, but also reserves enough gaps among welding seams, and promotes the shaping flow of materials in the friction stir welding process. The flow is beneficial to eliminating the defects of air holes, welding tunnels and the like generated in the welding process, so that the welding quality and the connection strength of the welding seam are improved, and the performance of the welding joint is more excellent.

2. The three-plate spliced aluminum alloy section bar friction stir welding jig has the advantages that the panel can swing up and down due to the design of the rotating shaft and the rotating support seat, and greater processing flexibility is provided for workpieces with different shapes and sizes. The design allows operators to adjust the angle of the panel according to the actual condition of the workpiece so as to adapt to different welding requirements, thereby widening the application range of the jig.

3. According to the three-plate spliced aluminum alloy profile friction stir welding jig, the clamping corner oil cylinder and the jacking oil cylinder are automatically controlled, so that the clamping, positioning and welding processes of workpieces are quicker and more accurate. The automatic control reduces the need of manual intervention, reduces labor intensity and improves production efficiency. Meanwhile, the automatic control reduces the possibility of human errors and ensures the consistency and stability of the welding process.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

The device comprises a panel 1, a fixed supporting seat 2, a base 3, a supporting block 4, a rotary shaft 5, a clamping corner oil cylinder 6, a supporting connecting seat 7, a top supporting oil cylinder 8, a pin shaft 9, a pin shaft 10 and a positioning pin.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, the embodiment of the utility model provides a friction stir welding jig for three-plate spliced aluminum alloy sections, which comprises a panel 1, wherein the middle part of the panel 1 is set as a reference plane, the two sides of the panel 1 are set as pre-deformation planes, a fixed supporting seat 2 is installed at the bottom of the panel 1, a base 3 is arranged below the panel 1, a plurality of supporting blocks 4 are fixedly connected to the top of the base 3 at equal intervals, the plurality of supporting blocks 4 are all positioned below the panel 1, one supporting block 4 is close to a side wall of the fixed supporting seat 2 and fixedly connected with a rotary shaft 5, one end of the rotary shaft 5, which is far away from the supporting block 4, is rotatably clamped inside an opening of the fixed supporting seat 2, two groups of clamping corner cylinders 6 are installed at the bottoms of the two sides of the panel 1, the plurality of supporting blocks 4 are all positioned between the two groups of clamping corner cylinders 6, a plurality of top supporting cylinders 8 are fixedly connected to one side of the plurality of supporting blocks 4 respectively, a plurality of pin shafts 9 are fixedly connected to the movable ends of the top supporting cylinders 8, a plurality of supporting connecting seats 7 are fixedly connected to the bottoms of the panel 1 at equal intervals, and a plurality of positioning pins 10 are installed at the sides of the two sides of the positioning pins 10 respectively.

The number of the clamping corner oil cylinders 6 and the positioning pins 10 is increased, so that workpieces can be clamped and positioned more uniformly and stably in the welding process, and the welding quality problem caused by insufficient clamping force or inaccurate positioning is reduced.

Proper distribution of the support blocks 4 provides sufficient support force while avoiding excessively complex designs that increase manufacturing costs and assembly difficulties. Three support blocks 4 are distributed at key stress points of the panel 1 to optimize its structural strength and stability.

Increasing the number of jacking cylinders 8 and support connection bases 7 allows for more accurate and stable control of the panel 1. These jack-up hydro-cylinders 8 and support connecting seat 7 distribute between panel 1 and base 3, through the collaborative work, can accurate adjustment panel 1's position and angle to satisfy the welding demand of different work pieces.

The clamping corner oil cylinder 6 and the jacking oil cylinder 8 are connected with the hydraulic pump through pipelines, so that the centralized supply and the accurate control of the hydraulic power can be realized. The design simplifies the layout of the hydraulic system, improves the energy utilization efficiency, and ensures the quick response and stable output of the oil cylinder in the welding process.

The support connecting seats 7 are symmetrically arranged at the bottoms of the pre-deformation planes at the two sides of the panel 1, so that the panel 1 can be ensured to be balanced and stable under the stress. The symmetrical design is also beneficial to reducing the problems of deformation and stress concentration caused by uneven stress, and improving the overall durability and service life of the jig.

When the three-plate spliced aluminum alloy profile friction stir welding jig is used, firstly, the aluminum alloy profile to be welded is accurately placed on a panel 1 of the jig, which is the basis for ensuring the welding precision. Subsequently, the workpiece is firmly fixed and precisely positioned by the positioning pin 10 and the clamping angle cylinder 6 to prevent movement or displacement during welding. The hydraulic pump drives the jacking cylinder 8 to work, and the pre-deformation plane of the panel 1 is adjusted to a preset angle and position. This step is to compensate for the deformation that may occur during the welding process, ensuring the flatness and flatness of the work piece after the welding is completed. And simultaneously, the optimal welding position and angle are provided for the subsequent welding operation. And starting the friction stir welding equipment to enable the welding tool to rotate at a high speed and insert into the welding line. During the friction process of the welding tool and the welding line material, a large amount of friction heat is generated, so that the welding line material is softened and the shaping flow occurs. Under the action of the stirring head, the softened materials are fully mixed and extruded, and finally a compact welding line is formed. This step is the core of the welding process and is directly related to the quality and strength of the weld. After the welding is completed, the welding equipment is closed, and the clamping corner oil cylinder 6 and the jacking oil cylinder 8 are released, so that the panel 1 is restored to the initial state. At this time, the welded aluminum alloy profile can be safely taken out. In the whole process, the pre-deformation design of the jig and the accurate control of the oil cylinder play a vital role, and the pre-deformation design and the accurate control of the oil cylinder jointly ensure the welding precision and quality.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A friction stir welding welding jig for three-plate spliced aluminum alloy profiles, comprising a panel (1), characterized in that: the middle of the panel (1) is set as a reference plane, and the two sides are set as pre-deformation planes, a fixed support seat (2) is installed at the bottom of the panel (1), a base (3) is arranged below the panel (1), and a plurality of support blocks (4) are fixedly connected to the top of the base (3) at equal intervals, and the plurality of support blocks (4) are all located below the panel (1), one of the support blocks (4) is fixedly connected to a rotating shaft (5) near the side wall of the fixed support seat (2), and the end of the rotating shaft (5) away from the support block (4) is rotatably clamped in the opening of the fixed support seat (2), and the two ends of the panel (1) are fixedly connected to the fixed support seat (2). Two groups of clamping angle cylinders (6) are installed at the bottom of the side, and the multiple support blocks (4) are located between the two groups of clamping angle cylinders (6). The top of the base (3) is fixedly connected with multiple top support cylinders (8), and the multiple top support cylinders (8) are respectively located on one side of the multiple support blocks (4). The movable ends of the multiple top support cylinders (8) are fixedly connected with pin shafts (9). The bottom of the panel (1) is fixedly connected with multiple support connection seats (7) at equal intervals, and the multiple support connection seats (7) are respectively connected to the multiple pin shafts (9). The tops of both sides of the panel (1) are installed with multiple positioning pins (10), and the multiple positioning pins (10) are respectively installed on the movable ends of the multiple clamping angle cylinders (6). 2. The three-plate spliced aluminum alloy profile friction stir welding welding fixture according to claim 1 is characterized in that: the number of the multiple clamping angle cylinders (6) and the positioning pins (10) is 8, the number of the multiple support blocks (4) is 3, and the number of the multiple supporting cylinders (8) and the supporting connecting seats (7) is 6. 3. The friction stir welding jig for three-plate spliced aluminum alloy profiles according to claim 1, characterized in that the clamping angle cylinder (6) and the supporting cylinder (8) are both connected to a hydraulic pump through a pipeline. 4. A friction stir welding jig for three-plate splicing aluminum alloy profiles according to claim 1, characterized in that: a plurality of the support connection seats (7) are symmetrically arranged at the bottom of the pre-deformed planes on both sides of the panel (1).