Aluminum alloy welding tool

Abstract

The utility model discloses an aluminum alloy welding tool which comprises a base, a first supporting assembly, a second supporting assembly, a first profiling positioning piece, a second profiling positioning piece, a side face pressing assembly, a head pressing assembly, a tail pressing assembly and a profiling pressing assembly, wherein the first supporting assembly, the second supporting assembly, the first profiling positioning piece, the second profiling positioning piece, the side face pressing assembly, the head pressing assembly and the tail pressing assembly are installed on the base. The first supporting assembly is used for supporting a first aluminum alloy part. The second supporting assembly is used for supporting a second aluminum alloy part; the first profiling positioning piece and the profiling pressing assembly are used for limiting movement of the first aluminum alloy part. The second profiling positioning piece is used for limiting movement of the second aluminum alloy part; the head pressing assembly and the tail pressing assembly are used for pressing the first aluminum alloy part. The side face pressing assembly is used for pressing the second aluminum alloy part. According to the utility model, the heat generated in the welding process of the super-long welding seam can be quickly transferred out, so that the welding deformation is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an aluminum alloy welding tool. Background Art

[0002] Aluminum alloys have the characteristics of high specific strength, high plasticity, good corrosion resistance, excellent mechanical processing performance, and high recycling rate. They are widely used in the production of aerospace, shipbuilding, automobiles, rail vehicles and other transportation products. The preparation of aluminum alloy structural parts usually adopts welding technology. Due to the high thermal expansion coefficient of aluminum alloy materials, the deformation of aluminum alloy parts is large during welding, especially arc welding. Therefore, traditional aluminum alloy welding processes usually use point contact tooling to reduce the contact area between the tooling and the workpiece; because when using surface contact, the tooling will quickly take away the heat of the workpiece, accelerate the solidification of the molten pool, and is not conducive to the removal of weld porosity.

[0003] However, for aluminum alloy parts with particularly long welds, such as those exceeding 1000mm, and thicker ones, if point contact tooling is used for welding, the heat generated by welding cannot be dissipated in time, and the accumulation of heat will cause deformation of the parts, resulting in uneven surface of the parts and defects such as dimensional changes. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an aluminum alloy welding tool.

[0005] The technical solution adopted by the utility model is:

[0006] An aluminum alloy welding tool comprises a base and a first supporting assembly, a second supporting assembly, a first contour positioning member, a second contour positioning member, a side clamping assembly, a head clamping assembly, a tail clamping assembly and a contour clamping assembly installed on the base;

[0007] The first supporting assembly is provided with a first supporting surface, and the first supporting surface is used to position and support the first aluminum alloy part; the second supporting assembly is provided with a second supporting surface, and the second supporting assembly is used to position and support the second aluminum alloy part so that the bottom surface of the second aluminum alloy part is completely attached to the second supporting surface; the second aluminum alloy part is in the shape of a flat plate, horizontally surrounds the first aluminum alloy part, and is connected to the first aluminum alloy part through an extra-long annular weld;

[0008] The first profiling positioning member is provided with a first profiling surface that is in the shape of the head of the first aluminum alloy part, the profiling pressing assembly is provided with a profiling block that is driven by a profiling pressing cylinder, and the profiling block is provided with a second profiling surface that is in the shape of the tail of the first aluminum alloy part; the profiling block is coaxially arranged with the first profiling positioning member, and the profiling pressing assembly and the first profiling positioning member cooperate to limit the movement of the first aluminum alloy part in a plane;

[0009] The second profiling positioning member is provided with a third profiling surface that is profiling with the head of the second aluminum alloy part. The center lines of the second profiling positioning member and the first profiling positioning member are located in the same vertical plane. The second profiling positioning member and the first aluminum alloy part cooperate to limit the movement of the second aluminum alloy part in a plane.

[0010] The head pressing assembly and the tail pressing assembly cooperate to press the first aluminum alloy part and fit it onto the first supporting surface;

[0011] The side clamping assembly is used to clamp the second aluminum alloy part and fit it on the second supporting surface; the side clamping assembly is provided with a plurality of clamping plates that are shaped like the second aluminum alloy part, and the clamping plates, the first supporting surface and the second supporting surface are all made of a material with a thermal conductivity greater than that of aluminum alloy.

[0012] Furthermore, it also includes a third support assembly, which includes four sliding assemblies installed on the front, rear, left and right sides of the upper side of the base, and the sliding assembly includes a slide rail, a slide plate, a sliding cylinder that drives the slide plate to move along the slide rail, and a second positioning block fixed on the slide plate, and the upper side surfaces of all the second positioning blocks form a first support surface.

[0013] Furthermore, the first supporting assembly includes a plurality of first positioning blocks fixedly mounted on the upper side of the base, and the upper side surfaces of all the first positioning blocks form a first supporting surface.

[0014] Furthermore, the second support assembly includes a first support plate and a second support plate, and the upper side surfaces of the first support plate and the second support plate form a second support surface; the inner side surfaces of the first support plate and the second support plate are respectively arranged as a first arcuate surface and a second arcuate surface that imitate the left and right side surfaces of the first aluminum alloy part.

[0015] Furthermore, a plurality of side clamping assemblies are provided, which are symmetrically distributed on both sides of the first and second aluminum alloy parts. Each side clamping assembly includes a side clamping angle seat, a side clamping arm, a side clamping cylinder and a clamping plate. The clamping plate is fixed to one end of the side clamping arm, and the other end of the side clamping arm is rotatably mounted on the side clamping angle seat and driven by the side clamping cylinder to rotate and press down.

[0016] Furthermore, the head clamping assembly includes a head clamping angle seat, a head clamping arm, a head clamping cylinder and a head clamping plate. The head clamping plate is fixed to one end of the head clamping arm, and the other end of the head clamping arm is rotatably mounted on the head clamping angle seat and driven by the head clamping cylinder to rotate and press down.

[0017] Furthermore, the tail clamping assembly includes a tail clamping angle seat, a tail clamping arm, a tail clamping cylinder and a tail clamping block. The tail clamping block is fixed to one end of the tail clamping arm, and the other end of the tail clamping arm is rotatably mounted on the tail clamping angle seat and driven by the tail clamping cylinder to rotate and press down.

[0018] Furthermore, the base includes legs and a base body, and the base body is composed of a bottom plate, a top plate and four side plates. The cavity surrounded by the bottom plate, the top plate and the four side plates is used to place signal lines and cables. The four corners of the base body are provided with hanging rings, the sides of the base body are provided with electrical boxes, valve boxes and control panels, and the top plate of the base body is provided with mounting holes and wire holes.

[0019] Beneficial effects of the utility model:

[0020] 1. By using a support plate and several clamping plates made of materials with excellent thermal conductivity, the support plate and the clamping plate fit and clamp the aluminum alloy parts, the heat generated during the welding process can be quickly transferred out, thereby effectively reducing the welding deformation. The welding heat of the super-long weld is large, but the aluminum alloy parts will not be cooled quickly, thereby affecting the performance of the parts.

[0021] 2. By using the coaxially arranged first profiling positioning member, the second profiling positioning member and the profiling block to clamp the aluminum alloy parts, the automatic guiding and centering of the aluminum alloy parts during clamping can be achieved, ensuring that the positioning and clamping of the aluminum alloy parts will not deflect and affect the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the aluminum alloy structural part of Example 1.

[0023] Figure 2 This is the general assembly drawing of the aluminum alloy welding tooling of the present utility model.

[0024] Figure 3 for Figure 2 Exploded diagram of .

[0025] Figure 4 This is the base structure diagram of the aluminum alloy welding tooling.

[0026] Figure 5 This is the structural diagram of the third support assembly of the aluminum alloy welding tooling.

[0027] Figure 6 This is a structural diagram of the first supporting plate of the second supporting assembly of the aluminum alloy welding tooling.

[0028] Figure 7 This is a structural diagram of the second supporting plate of the second supporting assembly of the aluminum alloy welding tooling.

[0029] Figure 8 This is a structural diagram of the contoured clamping assembly of the aluminum alloy welding tooling.

[0030] Fig. 9 This is a structural diagram of the side clamping assembly of the aluminum alloy welding tooling.

[0031] Fig.10This is the structural diagram of the head clamping assembly of the aluminum alloy welding tooling.

[0032] Fig.11 This is the structural diagram of the tail clamping assembly of the aluminum alloy welding tooling. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred implementation manner.

[0034] The present application provides an aluminum alloy welding tool for welding an aluminum alloy structural member 10 .

[0035] See also Figure 1 The aluminum alloy structural member 10 is an axisymmetric part, consisting of a bottom plate, a connecting plate 12 and a water retaining plate 11. The bottom plate and the connecting plate 12 form a first aluminum alloy part, and the water retaining plate 11 forms a second aluminum alloy part. The connecting plate 12 is a vertical aluminum alloy plate, which surrounds a racket-shaped cavity with a large head and a small tail. The bottom of the cavity is closed by the bottom plate, and two reinforcing ribs are arranged in the cavity. The water retaining plate 11 is a 6mm thick aluminum alloy flat plate, which surrounds the connecting plate 12 horizontally, and forms an ultra-long semi-closed annular weld with a length of 1080mm and a height of 6mm, with a closed head and an open tail.

[0036] See also Figure 2-Figure 3 The aluminum alloy welding tooling includes a base 6 and a first supporting assembly, a second supporting assembly, a third supporting assembly, a first contour positioning member 41, a second contour positioning member 42, a side clamping assembly, a head clamping assembly 51, a tail clamping assembly 52 and a contour clamping assembly 8 installed on the base 6.

[0037] See also Figure 4 In this embodiment, the base 6 includes legs 64 and a base body 65. The legs 64 are arranged at the bottom of the base body 65 to support the base body 65. The base body 65 is composed of a bottom plate, a top plate and four side plates. The cavity surrounded by the bottom plate, the top plate and the four side plates is used to place signal lines and cables. The top plate is provided with mounting holes for installing the above-mentioned components and wire holes for passing control lines and cables through each component. The four corners of the base body are provided with lifting rings 62. One side of the base body is provided with an electrical box 1 and a valve box 11, and the other side of the base body is provided with a control panel 63. The control lines and cables of the above-mentioned components pass through the wire holes to connect the electrical box 1 and the valve box 11 respectively. The valve box 11 is used to install the solenoid valves for the above-mentioned components and the control panel 63; the control panel 63 is used to control the start and stop of the above-mentioned components.

[0038] See also Figure 2 and Figure 4The front end of the top plate of the base 6, i.e., the head of the aluminum alloy structure 10, is provided with a first profiling positioning member 41 and a second profiling positioning member 42. The first profiling positioning member 41 is provided with a V-shaped first profiling surface that is profiling with the head of the connecting plate 12, and the second profiling positioning member 42 is provided with an arc-shaped third profiling surface that is profiling with the head of the water retaining plate 11. The second profiling positioning member 42 is located above the first profiling positioning member 41, and the axes of the second profiling surface and the third profiling surface coincide with each other when viewed from top to bottom.

[0039] The first support assembly and the third support assembly are installed at the center of the top plate of the base 6. The first support assembly includes six cylindrical positioning blocks 61 made of chromium zirconium copper, and the six cylindrical positioning blocks 61 are evenly distributed in the bottom plate of the connecting plate 12, and the upper side surfaces of the six cylindrical positioning blocks 61 form the first support surface.

[0040] See also Figure 5 The third support assembly includes a head sliding assembly 21, a tail sliding assembly 22, a left sliding assembly 23 and a right sliding assembly 24. The four sliding assemblies are distributed around the first support assembly. The head sliding assembly 21 and the tail sliding assembly 22 slide along the X axis, and the left sliding assembly 23 and the right sliding assembly 24 slide along the Y axis. Taking the tail sliding assembly 22 as an example, each sliding assembly includes a slide rail 221, a slide plate 222, a sliding cylinder 223 and a cylindrical positioning block 224; the cylindrical positioning block 224 is fixed on the slide plate 222, and the slide plate 222 is driven by the sliding cylinder 223 to move the slide rail 221. A cylindrical positioning block 224 is provided on each of the head sliding assembly 21 and the tail sliding assembly 22, and two cylindrical positioning blocks 224 are distributed on the left sliding assembly 23 and the right sliding assembly 24. The six cylindrical positioning blocks 224 are all made of chromium-zirconium copper, and their upper side surfaces form the first support surface. In addition, a sensor 225 for detecting the position of the connecting plate 12 is also provided on the tail sliding assembly 22 .

[0041] The first support assembly and the third support assembly are provided to improve the practicality of the tooling. For example, when welding an aluminum alloy product with a welding height of 5 inches, the four sliding assemblies slide inward, and the aluminum alloy parts are supported on six cylindrical positioning blocks 224; when welding an aluminum alloy product with a welding height of 10 inches, the four sliding assemblies slide outward, and the aluminum alloy parts are supported on six cylindrical positioning blocks 61.

[0042] See also Figure 6-Figure 7A second support plate 72 is installed above the left sliding assembly 23, and a first support plate 71 is installed above the right sliding assembly 24. The first support plate 71 includes a plate body 711 made of chrome zirconium copper and two legs 713 for supporting the plate body 711. The inner side surface of the plate body 711 is set as a first arc surface 714 that is contoured to the left side surface of the connecting plate 12. The second support plate 72 includes a plate body 721 made of chrome zirconium copper and two legs 723 for supporting the plate body 721. The inner side surface of the plate body 72 is set as a second arc surface 724 that is contoured to the right side surface of the connecting plate 12. The first support plate 71 and the second support plate 71 form a second support assembly, and the first arc surface 714 and the second arc surface 724 are set with a mounting gap from the side surface of the connecting plate 12.

[0043] See also Figure 2 and Figure 8 The profiling and clamping assembly 8 includes an angle seat 83, a profiling and clamping cylinder 82 and a profiling block 81. The profiling and clamping cylinder 82 is installed on the top plate of the angle seat 83. The cylinder piston rod extends horizontally to connect the profiling block 81 and is provided with a second profiling surface 811 that is contoured to the tail of the connecting plate 12; the profiling block 81 is coaxially arranged with the first profiling positioning member 41.

[0044] See also Figure 2 and Fig. 9 In this embodiment, there are 8 side clamping assemblies, namely the first clamping assembly 31, the second clamping assembly 32, the third clamping assembly 33, the fourth clamping assembly 34, the fifth clamping assembly 35, the sixth clamping assembly 36, the seventh clamping assembly 37 and the eighth clamping assembly 38. The first clamping assembly 31 and the eighth clamping assembly 38 have the same structure and are symmetrically distributed on both sides of the base, the second clamping assembly 32 and the seventh clamping assembly 37 have the same structure and are symmetrically distributed on both sides of the base, the third clamping assembly 33 and the sixth clamping assembly 36 have the same structure and are symmetrically distributed on both sides of the base, and the fourth clamping assembly 34 and the fifth clamping assembly 35 have the same structure and are symmetrically distributed on both sides of the base; each side clamping assembly is provided with a clamping plate that imitates the water baffle 11, that is, the 8 clamping plates are connected to form a shape similar to the water baffle 11, so that the water baffle 11 can be attached to and supported on the 8 clamping plates.

[0045] Taking the first clamping assembly 31 as an example, each side clamping assembly includes a side clamping angle seat 311, a side clamping arm 312, a side clamping cylinder 313 and a clamping plate 314. The clamping plate 314 is fixed to one end of the side clamping arm 312. The other end of the side clamping arm 312 is rotatably mounted on the side clamping angle seat 311 and driven to rotate and press downward by the side clamping cylinder 313. The clamping plate 314 is made of chrome zirconium copper, and the side clamping cylinder 313 is preferably a strong SMC flat cylinder.

[0046] See also Figure 2 and Fig.10 The head pressing assembly 51 includes a head pressing angle seat 511, a head pressing arm 512, a head pressing cylinder 513 and a head pressing plate 514. The head pressing plate 514 is fork-shaped, and the head pressing arm 512 is L-shaped. The closed end of the head pressing plate 514 is fixed on the head pressing arm 512. The other end of the head pressing arm 512 is rotatably mounted on the head pressing angle seat 511 and driven by the head pressing cylinder 513 to rotate and press down. The fork-shaped head pressing plate 514 can be pressed on the two reinforcing ribs of the connecting plate 12 to improve the pressing effect.

[0047] See also Figure 2 and Fig.11 The tail clamping assembly 52 includes a tail clamping angle seat 521, a tail clamping arm 522, a tail clamping cylinder 523 and a tail clamping block 524. The tail clamping block 524 is fixed to one end of the tail clamping arm 522. The other end of the tail clamping arm 522 is rotatably mounted on the tail clamping angle seat 521 and driven by the tail clamping cylinder 523 to rotate and press down. The tail clamping block 524 is convex-shaped, and the convex-shaped tail clamping block can press on the tail of the connecting plate 12 with a larger area to improve the clamping effect.

[0048] The method of using the above-mentioned aluminum alloy welding tooling is as follows:

[0049] (1) Place the connecting plate 12 on the base 6, with its bottom surface supported on six cylindrical positioning blocks 61, and its head against the first arc surface of the first contour positioning member 41;

[0050] (2) The water baffle plate 11 is mounted on the connecting plate 12, and its bottom surface is supported on the first supporting plate 71 and the second supporting plate 72, and its head abuts against the second arc surface of the second contour positioning member 42; an extra-long semi-closed annular weld is formed between the connecting plate 12 and the water baffle plate;

[0051] (3) Start the profiling and pressing cylinder 82, the profiling block 81 extends forward to push the connecting plate 12 and the water baffle 11, the head of the connecting plate 12 presses against the first arc surface, the tail presses against the second profiling surface of the profiling block, and the head of the water baffle 11 presses against the third profiling surface;

[0052] (4) The eight side pressing cylinders 33 of the eight side pressing assemblies are started, and the eight pressing plates 34 are driven by the side pressing cylinders to rotate and press down, so as to press the water retaining plate 11 and fit it onto the first supporting plate 71 and the second supporting plate 72;

[0053] (5) The head pressing cylinder 513 and the tail pressing cylinder 523 of the head pressing assembly 51 and the tail pressing assembly 52 are respectively started, and the head pressing plate 514 and the tail pressing block 524 are respectively driven by the head pressing cylinder 513 and the tail pressing cylinder 523 to rotate and press down, thereby pressing the connecting plate 12 onto the six cylindrical positioning blocks 61;

[0054] (6) Welding of extra-long semi-closed annular welds.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications are also within the protection scope of the present invention.

Claims

1. An aluminum alloy welding tool, characterized in that: It comprises a base (6) and a first supporting assembly, a second supporting assembly, a first contour positioning member (41), a second contour positioning member (42), a side clamping assembly, a head clamping assembly (51), a tail clamping assembly (52) and a contour clamping assembly (8) mounted on the base (6); The first supporting assembly is provided with a first supporting surface, and the first supporting surface is used to position and support the first aluminum alloy part; the second supporting assembly is provided with a second supporting surface, and the second supporting assembly is used to position and support the second aluminum alloy part so that the bottom surface of the second aluminum alloy part is completely attached to the second supporting surface; the second aluminum alloy part is in the shape of a flat plate, horizontally surrounds the first aluminum alloy part, and is connected to the first aluminum alloy part through an extra-long annular weld; The first profiling positioning member (41) is provided with a first profiling surface that is in the same shape as the head of the first aluminum alloy part, the profiling pressing assembly (8) is provided with a profiling block (81) that is driven to move by a profiling pressing cylinder (82), and the profiling block (81) is provided with a second profiling surface that is in the same shape as the tail of the first aluminum alloy part; the profiling block (81) is coaxially arranged with the first profiling positioning member (41), and the profiling pressing assembly (8) and the first profiling positioning member (41) cooperate to limit the movement of the first aluminum alloy part in a plane; The second profiling positioning member (42) is provided with a third profiling surface that is profiling the head of the second aluminum alloy part. The center lines of the second profiling positioning member (42) and the first profiling positioning member (41) are located in the same vertical plane. The second profiling positioning member (42) and the first aluminum alloy part cooperate to limit the movement of the second aluminum alloy part in a plane. The head pressing assembly (51) and the tail pressing assembly (52) cooperate to press the first aluminum alloy part and fit it onto the first supporting surface; The side clamping assembly is used to clamp the second aluminum alloy part and fit it on the second supporting surface; the side clamping assembly is provided with a plurality of clamping plates (314) that are shaped like the second aluminum alloy part, and the clamping plates (314), the first supporting surface and the second supporting surface are all made of a material with a thermal conductivity greater than that of the aluminum alloy.

2. The aluminum alloy welding tool according to claim 1, characterized in that: It also includes a third support assembly, which includes four sliding assemblies installed on the front, rear, left and right sides of the upper side of the base (6), the sliding assembly including a slide rail, a slide plate, a slide cylinder driving the slide plate to move along the slide rail, and a second positioning block fixed on the slide plate, and the upper side surfaces of all the second positioning blocks form a first support surface.

3. An aluminum alloy welding tool according to claim 1 or 2, characterized in that: The first support assembly comprises a plurality of first positioning blocks fixedly mounted on the upper side of the base (6), and the upper side surfaces of all the first positioning blocks form a first support surface.

4. The aluminum alloy welding tool according to claim 1, characterized in that: The second support assembly includes a first support plate and a second support plate, the upper side surfaces of the first support plate and the second support plate form a second support surface; the inner side surfaces of the first support plate and the second support plate are respectively arranged as a first arcuate surface and a second arcuate surface that imitate the left and right side surfaces of the first aluminum alloy part.

5. The aluminum alloy welding tool according to claim 1, characterized in that: A plurality of side clamping assemblies are provided, symmetrically distributed on both sides of the first and second aluminum alloy parts, each side clamping assembly comprises a side clamping angle seat (311), a side clamping arm (312), a side clamping cylinder (313) and a clamping plate (314), the clamping plate (314) is fixed to one end of the side clamping arm (312), and the other end of the side clamping arm (312) is rotatably mounted on the side clamping angle seat (311) and driven by the side clamping cylinder (313) to rotate and press downward.

6. The aluminum alloy welding tool according to claim 1, characterized in that: The head pressing assembly (51) comprises a head pressing angle seat (511), a head pressing arm (512), a head pressing cylinder (513) and a head pressing plate (514); the head pressing plate (514) is fixed to one end of the head pressing arm (512); the other end of the head pressing arm (512) is rotatably mounted on the head pressing angle seat (511) and driven by the head pressing cylinder (513) to rotate and press downward.

7. The aluminum alloy welding tool according to claim 1, characterized in that: The tail pressing assembly (52) comprises a tail pressing angle seat (521), a tail pressing arm (522), a tail pressing cylinder (523) and a tail pressing block (524). The tail pressing block (524) is fixed to one end of the tail pressing arm (522). The other end of the tail pressing arm (522) is rotatably mounted on the tail pressing angle seat (521) and driven by the tail pressing cylinder (523) to rotate and press downward.

8. The aluminum alloy welding tool according to claim 1, characterized in that: The base (6) comprises legs and a base body, wherein the base body comprises a bottom plate, a top plate and four side plates, wherein a cavity enclosed by the bottom plate, the top plate and the four side plates is used to place signal lines and cables, wherein hanging rings are arranged at the four corners of the base body, an electrical box, a valve box and a control panel are arranged on the side of the base body, and a mounting hole and a wire passing hole are arranged on the top plate of the base body.

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