Aluminum alloy laser welding smoke treatment device

Abstract

The utility model relates to the field of laser welding, and discloses an aluminum alloy laser welding smoke treatment device which comprises a ventilation pipe, a connector is installed on the right surface of the ventilation pipe, an air suction pipe is installed on the lower surface of the ventilation pipe, an air exhaust assembly is arranged at the left end of the ventilation pipe, and an installation frame is installed on the front surface of the ventilation pipe. The exhaust assembly comprises an exhaust pipe, the exhaust pipe is fixedly connected to the left end of the ventilation pipe, a filter screen is fixedly connected to the inner wall of the exhaust pipe, a baffle is fixedly connected to the upper end of the filter screen, a partition plate is rotatably connected to the lower surface of the baffle, and a fixing frame is fixedly connected to the lower surface of the partition plate. According to the utility model, the high-pressure blowing device is connected to the position of the connector at one end of the ventilation pipe, and when high-speed airflow passes through the inside of the ventilation pipe, negative pressure can be generated at the opening at the lower end of the air suction pipe, so that smoke dust and chippings can be sucked into the ventilation pipe and enter the exhaust device along the ventilation pipe.

Description

Technical Field

[0001] This utility model relates to the field of laser welding, and in particular to a device for treating fumes from laser welding of aluminum alloys. Background Technology

[0002] Laser welding is a common welding method. It involves focusing a laser beam onto the surface of the material to be welded, causing the material to absorb the laser energy and rapidly melt and vaporize, forming a small hole called a keyhole. As the laser beam moves, the keyhole also moves, and the surrounding liquid metal flows behind the keyhole, cools and solidifies to form a weld.

[0003] During laser welding, the material is subjected to high pressure during the melting process, which causes fumes and debris to be ejected outwards. In order to protect the operators, an absorption device needs to be installed at the welding position to absorb the fumes and debris. In the existing technology, the fumes are generally absorbed directly by a suction device. However, the fumes and debris are at a high temperature when they are discharged. After entering the suction device, they release high temperatures, which can easily cause damage to the inside of the suction device. Therefore, an aluminum alloy laser welding fume treatment device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an aluminum alloy laser welding fume treatment device, which aims to improve the problem in the prior art that "the negative pressure absorption method is used to collect fumes and debris, which easily leads to damage to the internal parts of the suction device".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum alloy laser welding fume treatment device, comprising a ventilation pipe, a connector installed on the right surface of the ventilation pipe, a suction pipe installed on the lower surface of the ventilation pipe, an exhaust component provided at the left end of the ventilation pipe, and a mounting bracket installed on the front surface of the ventilation pipe;

[0006] The exhaust assembly includes an exhaust pipe, which is fixedly connected to the left end of a ventilation pipe. A filter screen is fixedly connected to the inner wall of the exhaust pipe. A baffle is fixedly connected to the upper end of the filter screen. A partition is rotatably connected to the lower surface of the baffle. A fixing frame is fixedly connected to the lower surface of the partition. A rotating sleeve is rotatably connected to the inner wall of the exhaust assembly. The fixing frame is fixedly connected to the inner wall of the rotating sleeve. A locking component is provided at the left end of the rotating sleeve. A chip removal component is provided at the left end of the exhaust pipe.

[0007] As a further description of the above technical solution:

[0008] The chip removal assembly includes a chip removal pipe, which is installed at the left end of the exhaust pipe, and the left end of the exhaust pipe has an opening corresponding to the chip removal pipe.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the rotating sleeve is provided with a chip discharge port corresponding to the chip discharge pipe.

[0011] As a further description of the above technical solution:

[0012] A windproof sleeve is fixedly connected to the outer wall of the rotating sleeve, and the windproof sleeve is rotatably connected to the inner wall of the exhaust pipe.

[0013] As a further description of the above technical solution:

[0014] The locking component includes a lever, the right end of which is fixedly connected to the outer wall of the windshield cover.

[0015] As a further description of the above technical solution:

[0016] A fixing block is fixedly connected to the outer wall of the exhaust pipe near the lower part of the lever. An insert block is slidably connected through the inner wall of the lever. A slot that matches the insert block is provided on the upper surface of the fixing block.

[0017] As a further description of the above technical solution:

[0018] The insert and the lever are elastically connected by a locking spring.

[0019] As a further description of the above technical solution:

[0020] The insert is shaped like the number 7, with its front end penetrating and slidably connected to the left end of the lever.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by connecting a high-pressure blower to one end of the ventilation pipe, when the high-speed airflow passes through the inside of the ventilation pipe, a negative pressure is generated at the lower opening of the suction pipe, which will attract smoke and debris into the inside of the ventilation pipe and into the exhaust device along the ventilation pipe. Thus, the smoke and debris will not come into contact with the blower during the discharge process, and the overall device has good durability.

[0023] 2. In this utility model, by setting a filter screen, debris can be blocked, and the rotating sleeve can be used to align the debris discharge port with the discharge pipe. At the same time, the rotating sleeve will drive the partition to rotate and seal the internal channel of the ventilation pipe. At this time, the high-speed airflow will leave the exhaust pipe from the discharge port. In this way, the high-speed airflow can be used to discharge the debris remaining inside the exhaust pipe. The whole device is more convenient to clean. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model.

[0025] Figure 2 This is a three-dimensional cross-sectional view of the exhaust component in this utility model.

[0026] Figure 3 This is a three-dimensional cross-sectional diagram of the exhaust component in this utility model.

[0027] Figure 4 This is a three-dimensional cross-sectional diagram of the locking component in this utility model.

[0028] Legend:

[0029] 1. Ventilation duct; 2. Connector; 3. Mounting bracket; 4. Suction duct; 5. Exhaust assembly; 51. Exhaust duct; 52. Filter screen; 53. Baffle; 54. Rotating sleeve; 55. Partition; 56. Windproof sleeve; 57. Fixing bracket; 6. Chip removal assembly; 61. Chip removal pipe; 62. Chip removal port; 7. Locking assembly; 71. Fixing block; 72. Pulling block; 73. Inserting block; 74. Slot; 75. Locking spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3 An embodiment of this utility model provides an aluminum alloy laser welding fume treatment device, including a ventilation pipe 1 for high-pressure airflow, a connector 2 for connecting a high-pressure blower installed on the right surface of the ventilation pipe 1, and a suction pipe 4 for attracting fume and debris installed on the lower surface of the ventilation pipe 1. When high-pressure air passes through the inside of the ventilation pipe 1, a negative pressure is generated inside the suction pipe 4 according to Bernoulli's principle, thus attracting fume and debris into the inside of the suction pipe 4. An exhaust assembly 5 for discharging fume is provided at the left end of the ventilation pipe 1, and a mounting bracket 3 for fixing the entire device is installed on the front surface of the ventilation pipe 1.

[0032] The exhaust assembly 5 includes an exhaust duct 51, which is fixedly connected to the left end of the ventilation duct 1. High-pressure air passing through the exhaust duct 51 carries smoke and debris into the interior of the exhaust duct 51. A filter screen 52 for blocking debris is fixedly connected to the inner wall of the exhaust duct 51. A baffle 53 for blocking airflow is fixedly connected to the upper end of the filter screen 52. A partition 55 for closing the opening on the surface of the baffle 53 is rotatably connected to the lower surface of the baffle 53. A fixing device for moving the partition 55 is fixedly connected to the lower surface of the partition 55. The inner wall of the frame 57 and the exhaust assembly 5 is rotatably connected to a rotating sleeve 54 for driving the fixed frame 57 to rotate. The fixed frame 57 is fixedly connected to the inner wall of the rotating sleeve 54. By rotating the rotating sleeve 54, the fixed frame 57 can be driven to rotate. The rotation of the fixed frame 57 can drive the partition 55 to rotate. The rotation of the partition 55 can cooperate with the baffle 53 to block the internal channel of the exhaust pipe 51. The left end of the rotating sleeve 54 is provided with a locking component 7 for fixing the rotating sleeve 54. The left end of the exhaust pipe 51 is provided with a chip removal component 6 for guiding the debris to be discharged.

[0033] Reference Figure 1 - Figure 3 The chip removal assembly 6 includes a chip removal pipe 61 for discharging chips. The chip removal pipe 61 is installed at the left end of the exhaust pipe 51. The left end of the exhaust pipe 51 is provided with an opening corresponding to the chip removal pipe 61. The chips discharged from the left end of the exhaust pipe 51 will enter the interior of the chip removal pipe 61 under the drive of the high-pressure airflow. The outer wall of the rotating sleeve 54 is provided with a chip removal port 62 corresponding to the chip removal pipe 61. When the chip removal port 62 is aligned with the chip removal pipe 61, the high-pressure airflow can drive the chips inside the exhaust pipe 51 to leave the interior of the device through the chip removal pipe 61.

[0034] Reference Figure 2 - Figure 4 A windshield sleeve 56 is fixedly connected to the outer wall of the rotating sleeve 54 to ensure a seal between the rotating sleeve 54 and the exhaust pipe 51. The windshield sleeve 56 is rotatably connected to the inner wall of the exhaust pipe 51. The locking assembly 7 includes a lever 72 for driving the windshield sleeve 56. The right end of the lever 72 is fixedly connected to the outer wall of the windshield sleeve 56. The windshield sleeve 56 can be rotated by moving the lever 72. A fixing block 71 is fixedly connected to the outer wall of the exhaust pipe 51 near the lower part of the lever 72. A fixing block 71 is slidably connected to the inner wall of the lever 72 to fix the lever. The upper surface of the fixing block 71 is provided with a slot 74 that is adapted to the insertion block 73 of the block 72. When the insertion block 73 is inserted into the slot 74, the insertion block 73 will be fixed and cannot move horizontally. The insertion block 73 and the toggle block 72 are elastically connected by a locking spring 75. The locking spring 75 will support the insertion block 73 downward at all times. The insertion block 73 is set in the shape of a 7. The front end of the insertion block 73 passes through and slides on the left end of the toggle block 72. By moving the front end of the insertion block 73, the insertion block 73 can be moved upward and disengaged from the slot 74.

[0035] Working Principle: Connect the high-pressure blower to connector 2 on the right end of ventilation pipe 1. After turning on the high-pressure blower, a high-speed airflow enters ventilation pipe 1. According to Bernoulli's principle, when the high-speed airflow flows inside ventilation pipe 1, a negative pressure is generated at the lower opening of the suction pipe 4 on the lower surface of ventilation pipe 1. This negative pressure attracts welding fumes and debris, causing them to enter the interior of ventilation pipe 1 along the suction pipe 4. Subsequently, driven by the airflow, the fumes and debris enter the exhaust assembly 5 on the left end of ventilation pipe 1. During this process, the fumes and debris do not come into contact with the high-pressure blower, protecting the device and improving overall durability. The fumes and debris entering the exhaust pipe 51 encounter the filter screen 52 fixed to its inner wall. The filter screen 52 can block larger debris, preventing it from entering the subsequent ventilation system, allowing the fumes and some fine debris to continue moving forward with the airflow.

[0036] When it is necessary to clean the debris remaining in the exhaust duct 51, first move the front end of the insert block 73 to make it move upward against the spring force of the locking spring 75, disengaging it from the slot 74 on the fixing block 71. At this time, rotate the toggle block 72. Since the toggle block 72 is fixed to the outer wall of the wind baffle 56, and the wind baffle 56 is fixed to the outer wall of the rotating sleeve 54, rotating the toggle block 72 will cause the rotating sleeve 54 to rotate together. When the rotating sleeve 54 rotates, it drives the partition 55 to rotate through the fixing bracket 57 until the partition 55 closes the opening on the surface of the baffle 53, thereby blocking the normal passage between the ventilation duct 1 and the exhaust duct 51. At the same time, the chip discharge port 62 on the outer wall of the rotating sleeve 54 will rotate to align with the chip discharge pipe 61. At this time, the high-speed airflow will carry the debris remaining in the exhaust duct 51, enter the chip discharge pipe 61 from the chip discharge port 62, and be discharged from the device, completing the chip removal operation.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for treating fumes from laser welding of aluminum alloys, comprising a ventilation duct (1), characterized in that: A connector (2) is installed on the right surface of the ventilation pipe (1), a suction pipe (4) is installed on the lower surface of the ventilation pipe (1), an exhaust assembly (5) is provided at the left end of the ventilation pipe (1), and a mounting bracket (3) is installed on the front surface of the ventilation pipe (1). The exhaust assembly (5) includes an exhaust pipe (51), which is fixedly connected to the left end of the ventilation pipe (1). A filter screen (52) is fixedly connected to the inner wall of the exhaust pipe (51). A baffle (53) is fixedly connected to the upper end of the filter screen (52). A partition (55) is rotatably connected to the lower surface of the baffle (53). A fixing frame (57) is fixedly connected to the lower surface of the partition (55). A rotating sleeve (54) is rotatably connected to the inner wall of the exhaust assembly (5). The fixing frame (57) is fixedly connected to the inner wall of the rotating sleeve (54). A locking component (7) is provided at the left end of the rotating sleeve (54). A chip removal component (6) is provided at the left end of the exhaust pipe (51).

2. The aluminum alloy laser welding fume treatment device according to claim 1, characterized in that: The chip removal assembly (6) includes a chip removal pipe (61), which is installed at the left end of the exhaust pipe (51). The left end of the exhaust pipe (51) has an opening corresponding to the chip removal pipe (61).

3. The aluminum alloy laser welding fume treatment device according to claim 2, characterized in that: The outer wall of the rotating sleeve (54) is provided with a chip discharge port (62) corresponding to the chip discharge pipe (61).

4. The aluminum alloy laser welding fume treatment device according to claim 1, characterized in that: The outer wall of the rotating sleeve (54) is fixedly connected to a windproof sleeve (56), which is rotatably connected to the inner wall of the exhaust pipe (51).

5. The aluminum alloy laser welding fume treatment device according to claim 4, characterized in that: The locking component (7) includes a lever (72), the right end of which is fixedly connected to the outer wall of the windshield sleeve (56).

6. The aluminum alloy laser welding fume treatment device according to claim 5, characterized in that: A fixing block (71) is fixedly connected to the outer wall of the exhaust pipe (51) near the lower part of the lever (72). A plug (73) is slidably connected through the inner wall of the lever (72). A slot (74) adapted to the plug (73) is provided on the upper surface of the fixing block (71).

7. The aluminum alloy laser welding fume treatment device according to claim 6, characterized in that: The insert (73) and the lever (72) are elastically connected by a locking spring (75).

8. The aluminum alloy laser welding fume treatment device according to claim 6, characterized in that: The insert (73) is configured in the shape of a number 7, and the front end of the insert (73) is slidably connected to the left end of the lever (72).

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