Friction stir welding tool for joints with different thicknesses

Abstract

The utility model discloses a friction stir welding tool for joints with different thicknesses, which relates to the technical field of welding tools and comprises a fixed table, a first sliding rod is fixedly mounted on the right side of the inner wall of the fixed table, and a lifting plate is slidably connected to one side wall of the first sliding rod. Fixing frames are fixedly connected to the left side of the upper end of the outer wall of the lifting plate and the left side of the upper end of the outer wall of the fixing table in a left-right symmetry mode, second sliding rods are slidably connected to the two fixing frames in a front-back symmetry mode, and extrusion plates are fixedly installed on the opposite sides of the outer walls of each pair of left and right sliding rods. A rotating rod is rotated by rotating a first rotating handle, a worm, a worm gear and a first threaded rod which are arranged front and back are driven to rotate at the same time through rotation of the rotating rod, and therefore a lifting plate is driven to slide up and down along a first sliding rod, height positions of plates with different thicknesses are rapidly adjusted before welding, time and labor are saved, and no component needs to be disassembled or assembled; and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a fixture for friction stir welding of joints with unequal thicknesses. Background Technology

[0002] Friction welding is a method of welding that uses the heat generated by friction between the contact surfaces of workpieces as a heat source to cause plastic deformation of the workpieces under pressure. Compared with traditional fusion welding, friction welding has the advantages of high weld joint quality, weld strength equal to that of the base material, high welding efficiency, stable quality and good consistency. Currently, friction welding is often used for welding joints of plates of different thicknesses.

[0003] An existing application with application number 202322037139.0 discloses a friction stir welding fixture for unequal thickness joints. This application includes a welding platform, a backing plate, and a clamping mechanism. The backing plate is positioned on the welding platform and used to clamp the sheet metal onto the sheet metal placement surface and the backing plate. The thicker side of the sheet metal is clamped onto the sheet metal placement surface, and the thinner side is clamped onto the backing plate. When unequal thickness sheets are placed on the welding platform, the backing plate supports the thinner side of the sheet metal, preventing metal seepage during subsequent welding and avoiding internal void defects, thus improving sheet metal quality. This application mainly uses the backing plate to support sheets of different thicknesses. When different sheets have different thicknesses, a backing plate of the corresponding thickness needs to be replaced to meet the welding requirements. However, in actual use, since different sheets often have different thicknesses, this application requires disassembling and replacing backing plates of different thicknesses. Although the backing plate is fixed to the welding platform with screws, the operation is cumbersome and time-consuming.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a fixture for friction stir welding of joints with unequal thicknesses, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a fixture for friction stir welding of joints with unequal thicknesses, comprising a fixed platform, a sliding rod 1 fixedly installed on the right side of the inner wall of the fixed platform, a lifting plate slidably connected to one side wall of the sliding rod, a fixed frame symmetrically fixedly connected to the lifting plate and the upper left side of the outer wall of the fixed platform, two sliding rods 2 symmetrically slidably connected to each of the two fixed frames, and an extrusion plate fixedly installed on the opposite side of the outer wall of each pair of sliding rods 2.

[0007] As a further technical solution of this utility model, a mounting frame is welded to the lower end of the inner wall of the fixed platform, a rotating rod is rotatably connected to the mounting frame, a worm gear is symmetrically fixedly installed on the rotating rod, a rotating base is symmetrically fixedly installed on the lower end of the inner wall of the fixed platform, a threaded rod is rotatably connected to the upper end of the outer wall of each of the two rotating bases, a worm wheel is fixedly installed on the lower end of one side wall of each threaded rod, the worm wheel is meshed with the worm gear, a connecting sleeve is threadedly connected to one side wall of each of the two threaded rods, and both connecting sleeves are fixedly connected to the lifting plate.

[0008] As a further technical solution of this utility model, the rear end of the outer wall of the rotating rod penetrates the rear side of the outer wall of the fixed platform and is fixedly connected to a rotating handle.

[0009] As a further technical solution of this utility model, the outer wall of the fixed platform is symmetrically provided with openings on the front and rear sides that communicate with the inner wall of the fixed platform.

[0010] As a further technical solution of this utility model, the side wall of the extrusion plate is rotatably connected with a threaded rod II, the threaded rod II passes through the fixed frame and is threadedly connected to the fixed frame, and the two opposite ends of the outer walls of the two threaded rod II are fixedly installed with rotating handle II.

[0011] As a further technical solution of this utility model, an opening two is provided in the middle of the right side of the outer wall of the fixed platform.

[0012] This utility model provides a fixture for friction stir welding of joints with unequal thicknesses, which has the following advantages compared with the prior art:

[0013] 1. When using this utility model, the user can rotate the rotating rod by turning the rotating handle according to the thickness of the plate. The rotation of the rotating rod drives the front and rear worm gears, worm wheels and threaded rods to rotate simultaneously, thereby driving the lifting plate to slide up and down along the sliding rod. This allows for quick adjustment of the height position of plates of different thicknesses before welding, saving time and effort without disassembling any parts, thus improving the practicality of the device.

[0014] 2. When using this utility model, the user rotates the second handle to drive the second threaded rod to rotate, thereby moving the extrusion plates on both sides left and right. The left and right movement of the extrusion plates on both sides fixes the position of the plate above the fixed platform and the lifting plate, thus achieving rapid fixation of the plate to be welded. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the right view of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is an enlarged view of the structure at point A of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the threaded rod of this utility model at two points.

[0020] In the diagram: 100, fixed platform; 200, sliding rod one; 210, lifting plate; 300, fixed frame; 310, sliding rod two; 400, extrusion plate; 500, mounting frame; 510, rotating rod; 511, rotating handle one; 520, worm gear; 530, rotating base; 540, threaded rod one; 550, worm wheel; 560, connecting sleeve; 600, opening one; 700, threaded rod two; 710, rotating handle two; 800, opening two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution for a friction stir welding fixture for joints of unequal thicknesses: It includes a fixed platform 100 for placing thicker plates to be welded; a sliding rod 200 is fixedly installed on the right side of the inner wall of the fixed platform 100; a lifting plate 210 is slidably connected to the side wall of the sliding rod 200 for placing thinner plates to be welded; and fixed frames 300 are symmetrically fixedly connected to the upper left side of the outer wall of the lifting plate 210 and the fixed platform 100. Both fixed frames 300 have symmetrically sliding supports. A sliding rod 310 is movably connected. Each pair of sliding rods 310 has an extrusion plate 400 fixedly installed on opposite sides of its outer wall. The lifting plate 210 supports plates of different thicknesses by moving up and down. The extrusion plates 400 on both sides fix the position of the plates on the fixed platform 100 and above the lifting plate 210. A mounting bracket 500 is welded to the lower end of the inner wall of the fixed platform 100. A rotating rod 510 is rotatably connected to the mounting bracket 500. Worm gears 520 are symmetrically fixedly installed on the rotating rod 510. A rotating base 530 is symmetrically fixedly installed at the lower end of the inner wall of the platform 100. A threaded rod 540 is rotatably connected to the upper end of the outer wall of each rotating base 530. A worm gear 550 is fixedly installed at the lower end of the side wall of each threaded rod 540, meshing with a worm 520. A connecting sleeve 560 is threadedly connected to the side wall of each threaded rod 540, and both connecting sleeves 560 are fixedly connected to the lifting plate 210. The rotation of the rotating rod 510 drives the two worms 520 to rotate, thereby causing the two worm gears 550 to rotate. The rotation of the 0-axis causes the two threaded rods 540 to rotate simultaneously, driving the lifting plate 210 to slide up and down along the sliding rod 200. The rear end of the outer wall of the rotating rod 510 passes through the rear side of the outer wall of the fixed platform 100 and is fixedly connected to a rotating handle 511. The user can rotate the rotating rod 510 by rotating the rotating handle 511. The front and rear sides of the outer wall of the fixed platform 100 are symmetrically provided with openings 600 that penetrate the inner wall of the fixed platform 100. The openings 600 are used to facilitate the up and down movement of the plates on the lifting plate 210.

[0023] like Figure 1 and 5 As shown, a threaded rod 700 is rotatably connected to the side wall of the extrusion plate 400. The threaded rod 700 passes through the fixing frame 300 and is threadedly connected to the fixing frame 300. Rotating handles 710 are fixedly installed on the opposite ends of the outer walls of the two threaded rods 700. By rotating the rotating handles 710, the threaded rods 700 are rotated, thereby allowing the extrusion plates 400 on both sides to move left and right. The left and right movement of the extrusion plates 400 on both sides fixes the position of the plate above the fixing platform 100 and the lifting plate 210. An opening 800 is provided in the middle of the right side of the outer wall of the fixing platform 100. The opening 800 is used to facilitate the up and down movement of the rotating handle 710 on the right side.

[0024] The working principle of this utility model is as follows: In use, the user first places the plate on the device. The fixed platform 100 is used to place thicker plates to be welded, and the lifting plate 210 is used to place thinner plates to be welded. The user rotates the rotating handle 710 to drive the threaded rod 700 to rotate, causing the pressing plates 400 on both sides to move left and right. The pressing plates 400 on both sides move left and right to fix the position of the plates above the fixed platform 100 and the lifting plate 210. Then, according to the thickness of the plate, the user rotates the rotating rod 510 by rotating the rotating handle 511. The rotation of the rotating rod 510 drives the two front and rear worm gears 520 to rotate, thereby causing the two front and rear worm wheels 550 to rotate. This causes the two threaded rods 540 to rotate simultaneously, driving the lifting plate 210 to slide up and down along the sliding rod 200, realizing the rapid adjustment of the height position of plates of different thicknesses before welding without disassembling any parts.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A fixture for friction stir welding of joints with unequal thicknesses, comprising a fixed platform (100), characterized in that: A sliding rod (200) is fixedly installed on the right side of the inner wall of the fixed platform (100). A lifting plate (210) is slidably connected to the side wall of the sliding rod (200). A fixed frame (300) is symmetrically fixedly connected to the left side of the upper end of the lifting plate (210) and the outer wall of the fixed platform (100). A sliding rod (310) is symmetrically slidably connected to each of the two fixed frames (300). A pressing plate (400) is fixedly installed on the opposite side of the outer wall of each pair of sliding rods (310).

2. The fixture for friction stir welding of unequal thickness joints according to claim 1, characterized in that, A mounting bracket (500) is welded to the lower end of the inner wall of the fixed platform (100). A rotating rod (510) is rotatably connected to the mounting bracket (500). A worm gear (520) is symmetrically fixed to the rotating rod (510). A rotating base (530) is symmetrically fixed to the lower end of the inner wall of the fixed platform (100). A threaded rod (540) is rotatably connected to the upper end of the outer wall of each of the two rotating bases (530). A worm wheel (550) is fixedly installed on the lower end of the side wall of the threaded rod (540). The worm wheel (550) meshes with the worm gear (520). A connecting sleeve (560) is threaded to the side wall of each of the two threaded rods (540). Both connecting sleeves (560) are fixedly connected to the lifting plate (210).

3. The fixture for friction stir welding of unequal thickness joints according to claim 2, characterized in that, The rear end of the outer wall of the rotating rod (510) passes through the rear side of the outer wall of the fixed platform (100) and is fixedly connected to a rotating handle (511).

4. The fixture for friction stir welding of unequal thickness joints according to claim 1, characterized in that, The outer wall of the fixed platform (100) is symmetrically provided with openings (600) that communicate with the inner wall of the fixed platform (100).

5. A fixture for friction stir welding of unequal thickness joints according to claim 1, characterized in that, The side wall of the extrusion plate (400) is rotatably connected to a threaded rod (700), which passes through the fixing frame (300) and is threadedly connected to the fixing frame (300). Rotating handles (710) are fixedly installed on the opposite ends of the outer walls of the two threaded rods (700).

6. A fixture for friction stir welding of unequal thickness joints according to claim 5, characterized in that, An opening two (800) is provided in the middle of the right side of the outer wall of the fixed platform (100).

Images