Novel gantry friction stir welding machine

Abstract

The utility model discloses a novel gantry friction stir welding machine which comprises an electric guide rail, a gantry is arranged at the upper end of the electric guide rail in a sliding mode, a platform is fixedly arranged at the lower end of the gantry, a spindle box is fixedly arranged on one side of the gantry, and a driving device is fixedly arranged at the upper end of the spindle box. And a collecting box is fixedly arranged on one side of the electric guide rail. According to the structure, the buffer box is arranged at the lower end of the spindle box, the ejector block is fixedly arranged at the lower end of the buffer box, the first connecting plate is fixedly arranged at the lower end of the ejector block, the second connecting plate is fixedly arranged at the lower end of the first connecting plate, and the welding head is installed at the lower end of the second connecting plate; and a damper is fixedly arranged at the lower end of the first fixing block, and the lower end of the damper is fixedly arranged at the upper end of the first connecting plate, so that impact force and vibration borne by the welding head in the welding process are effectively reduced, and the service life of the welding head is longer.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a novel gantry friction stir welding machine. Background Technology

[0002] Friction stir welding is a new type of welding technology. It mainly uses a high-speed rotating stirring head to rub against the contact surface of the workpiece to generate heat and form a thermoplastic layer. Under the pressure of the stirring head, the layer plastically flows from the front to the rear, thereby pressing the workpiece into a whole. Friction stir welding technology is required for some large workpieces, so a new type of gantry friction stir welding machine is needed.

[0003] When using a new type of gantry friction stir welding machine, existing technologies, such as the one proposed in patent CN219786944U, employ extended columns and a distance between the top surfaces of both sides of the machine base and the top surface of the welding platform that is less than the axial length of the stirring head. This allows the welding device to slide laterally to both ends of the gantry frame, increasing the welding working area of ​​the welding head. The protective cover protects the longitudinal components, reducing the probability of welding debris clogging the linear guide rails and gear racks. The pulley system improves the smoothness of the longitudinal sliding of the sliding cover.

[0004] However, during friction stir welding, the welding head is subjected to significant impact and vibration, which can easily lead to unstable welding quality and prevent the welding head from reaching its expected service life. A large amount of welding slag is generated during the welding process. The accumulation of welding slag not only affects the working environment but may also interfere with equipment operation and may even cause injury to operators. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of gantry friction stir welding machine. Through a buffer device composed of a buffer box and a damper, the impact force and vibration of the welding head during the welding process are effectively reduced, resulting in a longer service life of the welding head, easier collection of welding slag generated during the welding process, improved working environment, and reduced harm to operators.

[0006] To achieve the above objectives, a novel gantry friction stir welding machine is provided, comprising an electric guide rail, a gantry frame slidably mounted on the upper end of the electric guide rail, a platform fixedly mounted on the lower end of the gantry frame, a spindle box fixedly mounted on one side of the gantry frame, a drive device fixedly mounted on the upper end of the spindle box, and a collection box fixedly mounted on one side of the electric guide rail.

[0007] According to the novel gantry friction stir welding machine, a buffer box is fixedly installed at the lower end of the spindle box, a top block is installed at the lower end of the buffer box, and two second buffer springs are symmetrically fixedly installed at the upper end of the top block. The second buffer springs are installed inside the slider.

[0008] According to the novel gantry friction stir welding machine, a fixed rod is fixedly installed inside the buffer box, and two first buffer springs are symmetrically fixedly installed on both sides of the fixed rod. The first buffer springs are fixedly installed on the upper end of the slider, and the slider is slidably installed on the side wall of the fixed rod.

[0009] According to the novel gantry friction stir welding machine, a first connecting plate is fixedly installed at the lower end of the top block, a second connecting plate is fixedly installed at the lower end of the first connecting plate, and a welding head is installed at the lower end of the second connecting plate.

[0010] According to the novel gantry friction stir welding machine, two first fixing blocks are symmetrically fixed on both sides of the spindle box, and a damper is fixedly installed at the lower end of the first fixing block. The lower end of the damper is fixedly installed on the upper end of the first connecting plate.

[0011] According to the novel gantry friction stir welding machine, a collection trough is fixedly provided on one side of the platform, a second fixing block is provided on one side of the collection trough, a motor is fixedly provided on one side of the second fixing block, and the second fixing block is fixedly provided on the side wall of the electric guide rail.

[0012] According to the novel gantry friction stir welding machine, a lead screw is fixedly installed on one side of the motor, a moving block is threadedly connected to the side wall of the lead screw, a scraper is fixedly installed on one side of the moving block, and the scraper is slidably installed inside the collection tank.

[0013] According to the novel gantry friction stir welding machine, a bearing seat is provided on one side of the lead screw, the lead screw is installed inside the bearing seat, the bearing seat is fixedly provided on one side of the collection tank, a discharge inclined pipe is fixedly and connected to one side of the collection tank, and a collection box is fixedly provided at the lower end of the discharge inclined pipe.

[0014] Beneficial effects:

[0015] 1. A gantry frame is slidably mounted on the upper end of the electric guide rail. A spindle box is fixedly mounted on one side of the gantry frame. A drive unit is fixedly mounted on the upper end of the spindle box. A buffer box is fixedly mounted on the lower end of the spindle box. A top block is fixedly mounted on the lower end of the buffer box. A first connecting plate is fixedly mounted on the lower end of the top block. A second connecting plate is fixedly mounted on the lower end of the first connecting plate. A welding head is installed on the lower end of the second connecting plate. Two second buffer springs are symmetrically fixedly mounted on the upper end of the top block. The second buffer springs are fixedly mounted inside the slider. Two first buffer springs are symmetrically fixedly mounted on the upper end of the slider. The first buffer springs are fixedly mounted inside the buffer box. A fixing rod is fixedly mounted inside the buffer box. The slider slides on the side wall of the fixing rod. Two first fixing blocks are symmetrically fixedly mounted on both sides of the spindle box. A damper is fixedly mounted on the lower end of the first fixing block. The lower end of the damper is fixedly mounted on the upper end of the first connecting plate. The buffer device composed of the buffer box and the damper effectively reduces the impact force and vibration of the welding head during the welding process, thus extending the service life of the welding head.

[0016] 2. A collection trough is fixedly installed on one side of the platform. A second fixed block is fixedly installed on one side of the collection trough. A motor is fixedly installed on one side of the second fixed block. A lead screw is fixedly installed on one side of the motor. A moving block is threadedly connected to the side wall of the lead screw. A scraper is fixedly installed on one side of the moving block. The scraper is slidably installed inside the collection trough. A bearing seat is fixedly installed on one side of the lead screw. The bearing seat is fixedly installed on the other side of the collection trough. A discharge inclined pipe is fixedly installed on the other side of the collection trough and communicates with it. A collection box is fixedly installed at the lower end of the discharge inclined pipe. This makes it easy to collect the welding slag generated during the welding process, improves the working environment, and reduces the harm to operators.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 A perspective view of a novel gantry friction stir welding machine proposed in this utility model;

[0020] Figure 2 A cross-sectional view of the buffer box of a novel gantry friction stir welding machine proposed in this utility model;

[0021] Figure 3 The present utility model proposes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 The present utility model proposes Figure 1 Enlarged view of point B in the middle;

[0023] Figure 5 The present utility model proposes Figure 1 A magnified view of point C in the middle.

[0024] Legend:

[0025] 1. Electric guide rail; 2. Gantry frame; 3. Spindle box; 4. Drive unit; 5. First fixed block; 6. Platform; 7. Buffer box; 8. First buffer spring; 9. Fixed rod; 10. Slider; 11. Second buffer spring; 12. Top block; 13. Damper; 14. First connecting plate; 15. Second connecting plate; 16. Welding head; 17. Bearing seat; 18. Discharge inclined pipe; 19. Collection box; 20. Motor; 21. Second fixed block; 22. Lead screw; 23. Collection trough; 24. Moving block; 25. Scraper. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model embodiment discloses a novel gantry friction stir welding machine, which includes an electric guide rail 1, a gantry frame 2 slidably mounted on the upper end of the electric guide rail 1, a platform 6 fixedly mounted on the lower end of the gantry frame 2, a spindle box 3 fixedly mounted on one side of the gantry frame 2, a drive device 4 fixedly mounted on the upper end of the spindle box 3, and a collection box 19 fixedly mounted on one side of the electric guide rail 1.

[0028] Specifically: the electric guide rail 1 is used to drive the upper gantry 2 to make linear motion, the platform 6 is used to carry the weldment, the drive device 4 is used to drive the welding head 16 to rotate at high speed, and the collection box 19 is used to collect the welding chips generated during welding.

[0029] A buffer box 7 is fixedly installed at the lower end of the spindle box 3. A top block 12 is installed at the lower end of the buffer box 7. Two second buffer springs 11 are symmetrically fixed at the upper end of the top block 12. The second buffer springs 11 are installed inside the slider 10.

[0030] Specifically, the elastic deformation of the first buffer spring 8 and the second buffer spring 11 absorbs the vibration energy generated during the welding process.

[0031] A fixed rod 9 is fixedly installed inside the buffer box 7. Two first buffer springs 8 are symmetrically fixed on both sides of the fixed rod 9. The first buffer springs 8 are fixedly installed on the upper end of the slider 10, and the slider 10 is slidably installed on the side wall of the fixed rod 9.

[0032] Specifically: the slider 10 uses the elasticity of the first buffer spring 8 to initially buffer the vibration energy generated by the welding head 16.

[0033] A first connecting plate 14 is fixedly installed at the lower end of the top block 12, a second connecting plate 15 is fixedly installed at the lower end of the first connecting plate 14, and a welding head 16 is installed at the lower end of the second connecting plate 15.

[0034] Specifically: the first connecting plate 14 and the second connecting plate 15 are fixed together by fastening bolts, and the welding head 16 contacts the surface of the workpiece being welded when it rotates at high speed, thereby making the workpieces weld together.

[0035] Two first fixing blocks 5 are symmetrically fixed on both sides of the spindle box 3. A damper 13 is fixedly installed at the lower end of the first fixing block 5. The lower end of the damper 13 is fixedly installed at the upper end of the first connecting plate 14.

[0036] Specifically: the first fixing block 5 is used to fix the damper 13.

[0037] A collection trough 23 is fixedly installed on one side of the platform 6, a second fixing block 21 is installed on one side of the collection trough 23, a motor 20 is fixedly installed on one side of the second fixing block 21, and the second fixing block 21 is fixedly installed on the side wall of the electric guide rail 1.

[0038] Specifically, the collection groove 23 serves to guide the welding slag, allowing it to fall precisely into the collection box 19.

[0039] A lead screw 22 is fixedly installed on one side of the motor 20. A moving block 24 is threadedly connected to the side wall of the lead screw 22. A scraper 25 is fixedly installed on one side of the moving block 24. The scraper 25 is slidably installed inside the collection tank 23.

[0040] Specifically: the motor 20 uses the force of the magnetic field to drive the lead screw 22 to rotate. The rotation of the lead screw 22 causes the moving block 24 on the side wall to move left and right on its side wall, so that the scraper 25 scrapes off the welding slag inside the collection tank 23.

[0041] A bearing seat 17 is provided on one side of the lead screw 22. The lead screw 22 is installed inside the bearing seat 17. The bearing seat 17 is fixedly installed on one side of the collection tank 23. A discharge inclined pipe 18 is fixedly and connected to one side of the collection tank 23. A collection box 19 is fixedly installed at the lower end of the discharge inclined pipe 18.

[0042] Specifically: the bearing housing 17 allows the lead screw 22 to rotate and has a limiting function, and the discharge inclined tube 18 is used to transport the welding chips into the collection box 19.

[0043] Working principle: When welding a workpiece, the energy generated by the vibration of the welding head 16 during operation is compressed by the top block 12 against the second buffer spring 11. The slider 10 slides up and down on the side wall of the fixed rod 9 through the two first buffer springs 8, so that the vibration energy is absorbed by the elastic deformation of the first buffer springs 8 and the second buffer springs 11, which plays a preliminary buffering role. Then, the vibration energy is consumed by the damper 13 on the side wall of the spindle box 3, which effectively reduces the impact force and vibration of the welding head 16 during the welding process. The welding chips generated during the welding process fall into the collection tank 23 through their own neutral flow. Then, the motor 20 is started. The motor 20 drives the lead screw 22 to rotate by the force of the magnetic field. The rotation of the lead screw 22 drives the moving block 24 on the side wall to move left and right on its side wall, so that the scraper 25 scrapes the welding chips in the collection tank 23 and falls into the collection box 19 through the discharge inclined pipe 18.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A new gantry friction stir welding machine comprising an electrically powered rail (1), characterised in that: The electric guide rail (1) upper end is provided with a portal frame (2), the portal frame (2) lower end is fixedly provided with a platform (6), the portal frame (2) one side is fixedly provided with a main shaft box (3), the main shaft box (3) upper end is fixedly provided with a driving device (4), the electric guide rail (1) one side is fixedly provided with a collection box (19).

2. A novel gantry friction stir welding machine as claimed in claim 1, wherein, The main shaft box (3) lower end is fixedly provided with a buffer box (7), the buffer box (7) lower end is mounted with a top block (12), the top block (12) upper end is fixedly provided with two second buffer springs (11), the second buffer spring (11) is mounted in the slider (10).

3. A novel gantry friction stir welding machine as claimed in claim 2, wherein, The buffer box (7) is fixedly provided with a fixed rod (9), the fixed rod (9) both sides are fixedly provided with two first buffer springs (8), the first buffer spring (8) is fixedly provided on the upper end of the slider (10), the slider (10) is slidably arranged on the side wall of the fixed rod (9).

4. A novel gantry friction stir welding machine as claimed in claim 2, wherein, The top block (12) lower end is fixedly provided with a first connecting plate (14), the first connecting plate (14) lower end is fixedly provided with a second connecting plate (15), the second connecting plate (15) lower end is mounted with a welding head (16).

5. A novel gantry friction stir welding machine as claimed in claim 1, wherein, The main shaft box (3) both sides are fixedly provided with two first fixed blocks (5), the first fixed block (5) lower end is fixedly provided with a damper (13), the damper (13) lower end is fixedly provided on the upper end of the first connecting plate (14).

6. A novel gantry friction stir welding machine as claimed in claim 1, wherein, The platform (6) one side is fixedly provided with a collection groove (23), the collection groove (23) one side is provided with a second fixed block (21), the second fixed block (21) one side is fixedly provided with a motor (20), the second fixed block (21) is fixedly provided on the side wall of the electric guide rail (1).

7. A novel gantry friction stir welding machine as claimed in claim 6 wherein, The motor (20) one side is fixedly provided with a lead screw (22), the lead screw (22) side wall is threadedly connected with a moving block (24), the moving block (24) one side is fixedly provided with a scraper (25), the scraper (25) is slidably arranged in the collection groove (23).

8. A novel gantry friction stir welding machine as claimed in claim 7, wherein, The lead screw (22) one side is provided with a bearing seat (17), the lead screw (22) is mounted in the bearing seat (17), the bearing seat (17) is fixedly provided on the side of the collection groove (23), the collection groove (23) one side is fixedly and continuously provided with a discharge inclined pipe (18), the discharge inclined pipe (18) lower end is fixedly provided with a collection box (19).

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