Gas protection device for titanium alloy laser welding

Abstract

The utility model belongs to the field of gas protection equipment, and particularly relates to a titanium alloy laser welding gas protection device which comprises a base, two supporting tables used for placing titanium alloy are fixedly installed on the top of the base, a fixing frame is installed on the tops of the supporting tables, and a connecting frame is fixedly installed on the top of the base. A sliding plate is slidably mounted on the connecting frame, a laser welding mechanism for titanium alloy laser is fixedly mounted at the bottom of the sliding plate, a groove is formed in the top of the supporting table, an inert protection pipe is arranged in the groove, two driving grooves are formed in the top of the supporting table, and driving seats are slidably mounted in the driving grooves. The titanium alloy laser protection device is reasonable in design, inert gas can be blown to the upper face and the lower face of the welding position through the inert protection pipe and the inert gas pipe, so that the purpose of protecting titanium alloy laser is achieved, the inert gas pipe and the laser welding mechanism move synchronously, and the purpose of fully protecting the titanium alloy laser is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas protection equipment technology, and in particular to a gas protection device for laser welding of titanium alloys. Background Technology

[0002] Laser welding is performed in the atmosphere, so gas shielding is the most crucial step in laser welding of titanium alloys. Titanium is a very reactive metal. Due to the formation of a dense oxide film on its surface, it is very stable at room temperature, but at high temperatures, it has a strong ability to absorb oxygen, nitrogen, and hydrogen, which seriously affects the mechanical properties and corrosion resistance of the welded joint.

[0003] However, during titanium alloy welding, the temperature on both the front and back sides of the titanium alloy exceeds 200°C, which presents a problem of difficulty in protecting the areas where the temperature on both the front and back sides of the titanium alloy weld exceeds 200°C. Therefore, we propose a gas protection device for titanium alloy laser welding to solve the above problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gas protection device for laser welding of titanium alloys.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas protection device for laser welding of titanium alloy includes a base, on the top of which two support platforms for placing titanium alloy are fixedly installed. A fixed frame is installed on the top of the support platforms. A connecting frame is fixedly installed on the top of the base. A sliding plate is slidably installed on the connecting frame. A laser welding mechanism for titanium alloy is fixedly installed at the bottom of the sliding plate.

[0007] The top of the support platform has a groove, and an inert gas protective tube is installed in the groove. The top of the support platform has two drive slots, and a drive seat is slidably installed in the drive slot. A connecting seat is fixedly installed on the top of the drive seat. Two horizontal plates are fixedly installed on one side of the connecting seat. A rotating shaft is rotatably installed between the two horizontal plates. A rotating seat is fixedly installed on the rotating shaft. An inert gas tube is fixedly installed on the top of the rotating seat.

[0008] Preferably, an L-shaped plate is fixedly installed on the top of the connecting seat, and one end of the L-shaped plate is fixedly connected to the sliding plate.

[0009] Preferably, a rotating shaft is rotatably mounted on the connecting seat, one end of the rotating shaft extends to one side of the connecting seat and a rotating plate is fixedly mounted thereon, and a transmission mechanism is provided between the rotating shaft and the rotating shaft.

[0010] Preferably, the transmission mechanism includes a worm and a worm wheel, the worm being fixedly mounted on a rotating shaft, the worm being fixedly mounted on a rotating shaft, and the worm and the worm wheel meshing with each other.

[0011] Preferably, the same threaded rod is rotatably mounted on the front and rear inner walls of the drive groove, and the drive seat is threaded onto the corresponding threaded rod.

[0012] Preferably, a control box is fixedly installed on the rear side of the base, the control box is provided with a drive mechanism, a linkage mechanism is provided between the drive mechanism and the threaded rod, and one end of the threaded rod extends into the control box.

[0013] Preferably, the drive mechanism includes a drive shaft and a drive motor. The drive shaft is rotatably mounted on the inner walls of both sides of the control box, and the drive motor is fixedly mounted on the control box.

[0014] Preferably, the linkage mechanism includes a driving bevel gear and a driven bevel gear. The driving bevel gear is fixedly mounted on the drive shaft, and the driven bevel gear is fixedly mounted on one end of the threaded rod. The driving bevel gear meshes with the corresponding driven bevel gear.

[0015] The beneficial effects of this utility model are:

[0016] 1. Place the titanium alloy to be welded on two support platforms. With the cooperation of the rotating plate, rotating shaft, worm and worm wheel, the rotating shaft can rotate and drive the rotating seat to rotate. The rotating seat can drive the inert gas tube to rotate, thereby adjusting the opening position of the inert gas tube so that the opening of the inert gas tube can be aligned with the weld of the titanium alloy.

[0017] 2. The laser welding mechanism can weld titanium alloys. Inert gas can be blown above and below the weld area through the inert protection tube and inert gas tube, thereby achieving the purpose of protecting the titanium alloy from laser.

[0018] 3. Through the cooperation of the drive motor, drive shaft, drive bevel gear and driven bevel gear, the threaded rod can rotate and drive the drive seat, connecting seat, L-shaped plate and welding mechanism to move. The connecting seat can drive the inert gas tube to move, so as to realize the synchronous movement of the inert gas tube and the laser welding mechanism, thereby achieving the purpose of fully protecting the titanium alloy from laser. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a gas protection device for laser welding of titanium alloys proposed in this utility model;

[0020] Figure 2 This is a cross-sectional three-dimensional structural diagram of a gas protection device for laser welding of titanium alloys proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of part A of a gas protection device for laser welding of titanium alloys proposed in this utility model;

[0022] Figure 4 This is a top-view three-dimensional cross-sectional structural diagram of a control box for a gas protection device for laser welding of titanium alloys proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Support platform; 3. Fixing frame; 401. Groove; 402. Inert gas protection tube; 501. Connecting frame; 502. Sliding plate; 503. Laser welding mechanism; 601. Drive slot; 602. Drive seat; 603. Connecting seat; 604. L-shaped plate; 701. Horizontal plate; 702. Rotating shaft; 703. Rotating seat; 704. Inert gas tube; 801. Rotating shaft; 802. Worm gear; 803. Rotating plate; 804. Worm wheel; 901. Threaded rod; 902. Driven bevel gear; 903. Drive shaft; 904. Drive bevel gear; 905. Drive motor; 10. Control box. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] When a component is described as being "set on" another component, it can be directly on the other component or it can be in an intervening component. "Set on" indicates a mode of existence, which can be a connection, installation, fixed connection, active connection, etc. When a component is described as being "connected" to another component, it can be directly connected to the other component or it may be in an intervening component.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Reference Figure 1-4A gas protection device for laser welding of titanium alloys includes a base 1. Two support platforms 2 for placing the titanium alloy are fixedly mounted on the top of the base 1. A fixing frame 3 is mounted on the top of the support platforms 2. A connecting frame 501 is fixedly mounted on the top of the base 1. A sliding plate 502 is slidably mounted on the connecting frame 501. A laser welding mechanism 503 for titanium alloys is fixedly mounted on the bottom of the sliding plate 502. A groove 401 is formed on the top of the support platforms 2, and an inert protection tube 402 is placed inside the groove 401. Two drive slots 601 are formed on the top of the support platforms 2, and drive seats 602 are slidably mounted inside the drive slots 601. A connecting seat 603 is fixedly installed on the top of the drive seat 602. Two horizontal plates 701 are fixedly installed on one side of the connecting seat 603. A rotating shaft 702 is rotatably installed between the two horizontal plates 701. A rotating seat 703 is fixedly installed on the rotating shaft 702. An inert gas tube 704 is fixedly installed on the top of the rotating seat 703. Inert gas can be blown above and below the welding joint through the inert protection tube 402 and the inert gas tube 704, thereby achieving the purpose of protecting the titanium alloy from laser. The inert gas tube 704 moves synchronously with the laser welding mechanism 503, thereby achieving the purpose of fully protecting the titanium alloy from laser.

[0028] In this embodiment, an L-shaped plate 604 is fixedly installed on the top of the connecting seat 603, and one end of the L-shaped plate 604 is fixedly connected to the sliding plate 502. By providing the L-shaped plate 604, the movement of the connecting seat 603 can drive the sliding plate 502 to move. A rotating shaft 801 is rotatably installed on the connecting seat 603. One end of the rotating shaft 801 is fixedly extended to one side of the connecting seat 603 and a rotating plate 803 is fixedly installed thereon. A transmission mechanism is provided between the rotating shaft 801 and the rotating shaft 702. The transmission mechanism includes a worm 802 and a worm wheel 804. The worm 802 is fixedly installed on the rotating shaft 801, and the worm wheel 804 is fixedly installed on the rotating shaft 702. The worm 802 and the worm wheel 804 mesh with each other. By providing the worm 802 and the worm wheel 804, the rotation of the rotating shaft 801 can drive the rotating shaft 702 to rotate, thereby achieving the purpose of adjusting the angle of the inert gas tube 704.

[0029] In this embodiment, the same threaded rod 901 is rotatably installed on the front and rear inner walls of the drive groove 601, and the drive seat 602 is threaded onto the corresponding threaded rod 901. By providing the threaded rod 901, the rotation of the threaded rod 901 can drive the drive seat 602 to move. A control box 10 is fixedly installed on the rear side of the base 1. The control box 10 is provided with a drive mechanism. A linkage mechanism is provided between the drive mechanism and the threaded rod 901, and one end of the threaded rod 901 extends into the control box 10.

[0030] In this embodiment, the drive mechanism includes a drive shaft 903 and a drive motor 905. The drive shaft 903 is rotatably mounted on the inner walls of both sides of the control box 10, and the drive motor 905 is fixedly mounted on the control box 10. The linkage mechanism includes a drive bevel gear 904 and a driven bevel gear 902. The drive bevel gear 904 is fixedly mounted on the drive shaft 903, and the driven bevel gear 902 is fixedly mounted on one end of the threaded rod 901. The drive bevel gear 904 meshes with the corresponding driven bevel gear 902. By starting the drive motor 905, the drive motor 905 can drive the drive shaft 903 to rotate. With the cooperation of the drive bevel gear 904 and the driven bevel gear 902, the drive shaft 903 can drive the two threaded rods 901 to rotate.

[0031] In this invention, the titanium alloy to be welded is placed on two support platforms 2. By rotating the rotating plate 803 and the rotating shaft 801, and through the cooperation of the worm gear 802 and the worm wheel 804, the rotation of the rotating shaft 801 drives the rotating shaft 702 to rotate. The rotating shaft 702 drives the rotating seat 703 to rotate, and the rotating seat 703 drives the inert gas pipe 704 to rotate. This adjusts the opening position of the inert gas pipe 704 so that its opening is aligned with the weld seam of the titanium alloy. The titanium alloy can be welded by the laser welding mechanism 503. Inert gas is blown above and below the weld seam through the inert protective tube 402 and the inert gas pipe 704. This achieves the purpose of protecting titanium alloy from laser radiation. By starting the drive motor 905, the drive motor 905 can drive the drive shaft 903 to rotate. With the cooperation of the drive bevel gear 904 and the driven bevel gear 902, the drive shaft 903 can drive the two threaded rods 901 to rotate. The threaded rods 901 can drive the drive seat 602 to move. The drive seat 602 can drive the connecting seat 603 to move. The connecting seat 603 drives the welding mechanism to move through the L-shaped plate 604. The connecting seat 603 can drive the inert gas tube 704 to move, so that the inert gas tube 704 and the laser welding mechanism 503 can move synchronously, thereby achieving the purpose of fully protecting titanium alloy from laser radiation.

[0032] The above provides a detailed description of a gas protection device for laser welding of titanium alloys provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A gas protection device for laser welding of titanium alloys, characterized in that, Includes a base (1), on the top of which two support platforms (2) for placing titanium alloy are fixedly installed, on the top of the support platforms (2) are fixed frames (3), on the top of the base (1) are fixed frames (501), on the top of the base (1) are fixed frames (501), on the top of the connecting frames (501) are sliding plates (502), and on the bottom of the sliding plates (502) are fixed laser welding mechanisms (503) for titanium alloy lasers. The top of the support platform (2) is provided with a groove (401), and an inert gas protection tube (402) is provided in the groove (401). The top of the support platform (2) is provided with two drive slots (601), and a drive seat (602) is slidably installed in the drive slots (601). A connecting seat (603) is fixedly installed on the top of the drive seat (602). Two horizontal plates (701) are fixedly installed on one side of the connecting seat (603). A rotating shaft (702) is rotatably installed between the two horizontal plates (701). A rotating seat (703) is fixedly installed on the rotating shaft (702). An inert gas tube (704) is fixedly installed on the top of the rotating seat (703).

2. The gas protection device for laser welding of titanium alloys according to claim 1, characterized in that, An L-shaped plate (604) is fixedly installed on the top of the connecting seat (603), and one end of the L-shaped plate (604) is fixedly connected to the sliding plate (502).

3. The gas protection device for laser welding of titanium alloys according to claim 1, characterized in that, A rotating shaft (801) is rotatably mounted on the connecting seat (603). One end of the rotating shaft (801) extends to one side of the connecting seat (603) and a rotating plate (803) is fixedly mounted thereon. A transmission mechanism is provided between the rotating shaft (801) and the rotating shaft (702).

4. A gas protection device for laser welding of titanium alloys according to claim 3, characterized in that, The transmission mechanism includes a worm (802) and a worm wheel (804). The worm (802) is fixedly mounted on a rotating shaft (801), and the worm wheel (804) is fixedly mounted on a rotating shaft (702). The worm (802) and the worm wheel (804) mesh with each other.

5. A gas protection device for laser welding of titanium alloys according to claim 1, characterized in that, The same threaded rod (901) is rotatably mounted on the front and rear inner walls of the drive groove (601), and the drive seat (602) is threaded onto the corresponding threaded rod (901).

6. A gas protection device for laser welding of titanium alloys according to claim 1, characterized in that, A control box (10) is fixedly installed on the rear side of the base (1). The control box (10) is provided with a drive mechanism. A linkage mechanism is provided between the drive mechanism and the threaded rod (901), and one end of the threaded rod (901) extends into the control box (10).

7. A gas protection device for laser welding of titanium alloys according to claim 6, characterized in that, The drive mechanism includes a drive shaft (903) and a drive motor (905). The drive shaft (903) is rotatably mounted on the inner walls of both sides of the control box (10), and the drive motor (905) is fixedly mounted on the control box (10).

8. A gas protection device for laser welding of titanium alloys according to claim 6, characterized in that, The linkage mechanism includes a driving bevel gear (904) and a driven bevel gear (902). The driving bevel gear (904) is fixedly mounted on the driving shaft (903), and the driven bevel gear (902) is fixedly mounted on one end of the threaded rod (901). The driving bevel gear (904) meshes with the corresponding driven bevel gear (902).

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