Ventilation device for laser welding machine

Abstract

A ventilation device for a laser welding machine comprises a box body, a plurality of air inlets are formed in the side face of the box body, a plurality of air outlets are formed in the top side of the box body, suction fans are installed at the air outlets in a communicated mode, filter screens are arranged between the air inlets and the air outlets, the filter screens are located in the box body, and the air inlets are communicated with box bodies through pipelines, the drying box is characterized in that a plurality of rotating shafts are rotationally mounted on one side of the opening of the box body respectively, air deflectors are fixedly mounted on the rotating shafts respectively, and the air deflectors can seal the side of the opening of the box body. The welding ventilation device is simple in structure and ingenious in conception, the size of the opening of the box body can be adjusted according to actual needs, objects with small sizes are prevented from being sucked into the box body and finally entering the box body during air suction, different welding ventilation requirements can be met by adjusting the angle of the air guide plate and the air suction angle of the box body, operation is easy, and practicability is high. The method can meet actual requirements and is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the field of laser welding, in particular to a ventilation device for a laser welding machine. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasonic wave, among which laser welding is an efficient and precise welding method that uses a high energy density laser beam as a heat source. Laser welding can reduce the required amount of heat input to the minimum, the metallographic change range of the heat affected zone is small, and the deformation caused by heat conduction is also minimal. It can reduce the time required for thick plate welding and even save the use of filler metal. It has a wide range of weldable materials and can also join various heterogeneous materials to each other. It can weld two metals with different physical properties (such as different resistances). It is widely used in the automotive manufacturing industry and electronics industry. It is widely used in industries and other fields; however, laser welding machines often produce smoke when in use, which pollutes the environment and may have adverse effects on the health of workers. It is necessary to deal with the smoke generated during the use of laser welding machines; the State Intellectual Property Office issued an authorization announcement on March 5, 2021, with the patent with authorization announcement number CN212651481U: "Smoke treatment device for laser welding machine". The patent discloses a device that can treat smoke during welding, but when the device is in use, the size of the air intake port is fixed. When welding small objects, the air intake port can easily suck small objects into the shell. Therefore, we designed a ventilation device that is easy to adjust the size of the air intake port according to actual conditions. Utility Model Content

[0003] The utility model provides a ventilation device for a laser welding machine, which is used to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A ventilation device for a laser welding machine comprises a box body, a plurality of air inlets are arranged on the side of the box body, a plurality of air outlets are arranged on the top side of the box body, a suction fan is connected and installed at the air outlet, a filter screen is arranged between the air inlet and the air outlet, the filter screen is located in the box body, and the air inlet is connected and installed with a box body with an opening on one side through a pipeline. The ventilation device is characterized in that: a plurality of rotating shafts are rotatably installed on one side of the opening of the box body, an air guide plate is fixedly installed on the rotating shaft, the plurality of air guide plates can close one side of the opening of the box body, and a driving device capable of driving the plurality of rotating shafts to rotate is respectively provided on the box body.

[0006] As described above, a ventilation device for a laser welding machine, the driving device includes gears, one end of the rotating shaft extends out of the box body, one end of the rotating shaft is fixedly installed with coaxial gears, adjacent gears are connected through an odd number of transmission wheels, a coaxial worm wheel is fixedly installed on one of the rotating shafts, a worm is meshingly provided on one side of the worm wheel, the worm is rotatably installed on the box body through several shaft seats, and a first hand wheel is fixedly installed on one end of the worm.

[0007] As described above, a ventilation device for a laser welding machine has a through groove on one side of the box body, and a slot on the other side of the box body. The through groove and the slot are plugged together to install the same filter net. A baffle is fixedly installed on one side of the filter net, and a sealing gasket is provided between the baffle and the box body. A rotating plate is contacted and cooperated on one side of the baffle plate, and the upper side of the rotating plate is fixedly installed on the horizontal axis, and the horizontal axis is rotatably installed on the box body.

[0008] As described above, a ventilation device for a laser welding machine, each of the box bodies is correspondingly provided with a group of cranes that can drive the box body to move up and down, the pipeline is a hose, the crane includes a screw rod, each group of cranes is provided with two screw rods and a base plate, the screw rods are rotatably mounted on the corresponding base plates through bearings, the outer periphery of the screw rods are respectively threaded to fit the nut, one side of the nut is respectively hinged to the spring rod, the movable ends of the spring rods in the same group are fixedly connected to the same placement plate, and the box body is mounted on the placement plate.

[0009] As described above, a ventilation device for a laser welding machine has dovetail grooves respectively arranged on the placement plate, dovetail sliders are slidably installed in the dovetail grooves, and the dovetail sliders are fixedly installed on the corresponding box body. A horizontal plate is fixedly installed on one side of the box body, a threaded through hole is arranged on the horizontal plate, and a threaded rod is installed in the threaded through hole. A plurality of grooves are arranged on the placement plate, and the threaded rod can be inserted into the grooves.

[0010] In the ventilation device for a laser welding machine as described above, a second hand wheel is fixedly mounted on each of the screw rods.

[0011] The advantages of the utility model are: the utility model has a simple structure and an ingenious design, and can open the size of the box opening according to actual needs to prevent small objects from being sucked into the box and finally entering the box body during air inhalation, and can adjust the angle of the box air inhalation by adjusting the angle of the air guide plate to adapt to different welding ventilation needs, is simple to operate, can meet actual needs, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 yes Figure 1 Partial enlarged view of Ⅰ; Figure 3 yes Figure 1 A-direction view; Figure 4 yes Figure 3 Ⅱ partial enlarged view; Figure 5 yes Figure 3 B view.

[0014] Figure numerals: 1, box body, 2, air inlet, 3, air outlet, 4, suction fan, 5, duct, 6, box body, 7, rotating shaft, 8, air guide plate, 9, filter screen, 20, gear, 21, transmission wheel, 22, worm gear, 23, worm, 24, first hand wheel, 30, through groove, 31, slot, 32, baffle, 33, rotating plate, 34, horizontal axis, 35, sealing gasket, 40, screw rod, 41, bottom plate, 42, nut, 43, spring rod, 44, placement plate, 50, dovetail slide groove, 51, dovetail slider, 52, horizontal plate, 53, threaded through hole, 54, threaded rod, 55, groove, 60, second hand wheel. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] A ventilation device for a laser welding machine, such as Figure 1 , 2As shown in , 3, 4, and 5, it includes a box body 1, a plurality of air inlets 2 are provided on the side of the box body 1, a plurality of air outlets 3 are provided on the top side of the box body 1, a suction fan 4 is installed at the air outlet 3, and the suction fan 4 is fixedly installed on the box body 1. A filter screen 9 is provided between the air inlet 2 and the air outlet 3, and the filter screen 9 is located in the box body 1. The air inlet 2 is connected to a box body 6 with an opening on one side through a pipe 5, one end of the pipe 5 is fixedly installed on the box body 1, and the other end of the pipe 5 is fixedly installed on the non-open side of the box body 6. A reserved hole connected with the pipe 5 is provided on the box body 6, which is characterized in that: a plurality of rotating shafts 7 are rotatably installed on one side of the opening of the box body 6, and an air guide plate 8 is fixedly installed on the rotating shaft 7, and the rotating shaft 7 is coaxially arranged with the corresponding air guide plate 8. The plurality of air guide plates 8 can close the open side of the box body 6, and a driving device capable of driving the plurality of rotating shafts 7 to rotate is provided on the box body 6. The utility model has a simple structure and an ingenious design. It can open the size of the opening of the box body 6 according to actual needs to prevent small objects from being sucked into the box body 6 and finally entering the box body 1 during air inhalation. The angle of the air inhalation of the box body 6 can be adjusted by adjusting the angle of the air guide plate 8 to adapt to different welding ventilation needs. The operation is simple, the actual needs can be met, and the utility model is suitable for promotion. When using the utility model, first place one side of the opening of the box body 6 to the side of the laser welding machine, according to actual needs, control the corresponding driving device to drive the rotating shaft 7 to rotate, adjust the angle of the air guide plate 8, and open the corresponding side of the opening of the box body 6. At this time, start the suction fan 4, which sucks the smoke in the welding process into the box body 1 through the box body 6, the pipeline 5 and the air inlet 2, and the filter 9 filters the smoke, and the filtered smoke is discharged from the air outlet 3; when welding small objects, the driving device can drive the rotating shaft 7 and the air guide plate 8 to rotate counterclockwise, open the opening side of the box body 6, and facilitate the absorption of smoke. At the same time, the angle of rotation of the air guide plate 8 can be controlled, and the size of the opening on the opening side of the box body 6 can be controlled to prevent the opening from being too large, so that small objects are sucked into the box body 1; similarly, the rotating shaft 7 can be controlled to drive the air guide plate 8 to rotate clockwise, so that it is convenient to absorb the smoke on the upper side of the box body 6. When suction is not required, the rotating shaft 7 can be controlled to drive the air guide plate 8 to rotate to a vertical state, and the box body 6 is closed at this time.

[0017] Specifically, as shown in the figure, the driving device described in this embodiment includes a gear 20, one end of the rotating shaft 7 extends out of the box body 6, one end of the rotating shaft 7 is fixedly installed with a coaxial gear 20, and the adjacent gears 20 are connected through an odd number of transmission wheels 21. In this embodiment, a transmission wheel 21 is provided between adjacent gears 20, and the transmission wheels 21 are respectively fixedly installed on the support shaft, and the support shaft is rotatably installed on the box body 1 through bearings. The odd number of transmission wheels 21 can make two adjacent gears 20 rotate in the same direction, and a coaxial worm wheel 22 is fixedly installed on one of the rotating shafts 7, and a worm 23 is meshingly provided on one side of the worm wheel 22. The worm 23 is rotatably installed on the box body 1 through several shaft seats, and the outer periphery of the worm 23 is rotatably installed in the inner hole of the shaft seat through a bearing, and the shaft seat is fixedly installed on the box body 1, and a first hand wheel 24 is fixedly installed on one end of the worm 23. When the angle of the air guide plate 8 needs to be adjusted, the worm 23 is rotated by the first hand wheel 24, the worm 23 drives the worm wheel 22 to rotate, the worm wheel 22 drives the corresponding gear 20 to rotate through the rotating shaft 7, and the gear 20 drives other gears 20 to rotate through the transmission wheel 21, so that the rotating shaft 7 rotates synchronously, and the rotating shaft 7 drives the air guide plate 8 to rotate, thereby changing the angle of the air guide plate 8.

[0018] Specifically, as shown in the figure, a through groove 30 is provided on one side of the box body 1 described in this embodiment, and a slot 31 is provided on the other side of the box body 1. The through groove 30 and the slot 31 are plugged and matched to install the same filter screen 9. The filter screen 9 can be moved out from the slot 31 and the through groove 30, and moved out of the box body 1 through the through groove 30. A baffle 32 is fixedly installed on one side of the filter screen 9, and a sealing gasket 35 is provided between the baffle 32 and the box body 1. A rotating plate 33 is provided on one side of the baffle 32 for contact and cooperation. The upper side of the rotating plate 33 is fixedly installed on the horizontal axis 34, and the horizontal axis 34 is rotatably installed on the box body 1. The horizontal axis 34 is rotatably installed on the box body 1 through a bearing. The rotating plate 33 can maintain a close fit with the baffle 32 under the action of its own gravity to limit it. When the rotating plate 33 is rotated upward by 180 degrees, the limit on the baffle 32 is released. When the filter 9 needs to be cleaned, the rotating plate 33 is rotated upwards, the limit on the baffle 32 is released, the baffle 32 is pulled, the filter 9 is moved out of the box body 1, and the filter 9 is cleaned. After cleaning, the filter 9 is reinserted into the slot 31, and the rotating plate 33 is released. At this time, under the action of the gravity of the rotating plate 33 itself, the rotating plate 33 rotates downward to limit the baffle 32. The sealing gasket 35 can increase the sealing between the baffle 32 and the box body 1 to prevent untreated air from escaping from the through groove 30.

[0019] Further, as shown in the figure, each of the box bodies 6 in the present embodiment is correspondingly provided with a group of cranes capable of driving the box body 6 to move up and down, the pipeline 5 is a hose, the crane includes a screw rod 40, each group of cranes is provided with two screw rods 40 and a base plate 41, the screw rods 40 are rotatably mounted on the corresponding base plates 41 through bearings, the outer periphery of the screw rods 40 are respectively threadedly mounted with nuts 42, one side of the nuts 42 is respectively hinged to spring rods 43, the fixed end of the spring rod 43 is rotatably connected to one side of the nut 42 through a hinge shaft, the movable end of the spring rod 43 in the same group is fixedly connected to the same placement plate 44, the box body 6 is mounted on the placement plate 44, and the length of the hose is long enough to ensure that the box body 6 can move with the placement plate 44. By rotating the screw rod 40 in the same group, the nut 42 drives the placement plate 44 and the box body 6 to move up and down, and the position of the box body 6 can be adjusted according to actual needs, so as to adapt to different environments. When the box body 6 needs to be tilted, only one screw rod 40 in the same group can be rotated, and the nut 42 on the screw rod 40 drives the placement plate 44 and the box body 6 to move, and the spring rod 43 is stretched, and the spring rod 43 rotates along the hinge axis. At this time, the box body 6 is in a tilted state.

[0020] Further, as shown in the figure, the placement plate 44 of the present embodiment is provided with dovetail chute 50, and dovetail slider 51 is slidably installed in dovetail chute 50, and dovetail slider 51 is fixedly installed on the corresponding box body 6, and a horizontal plate 52 is fixedly installed on one side of the box body 6, and a threaded through hole 53 is provided on the horizontal plate 52, and a threaded rod 54 is installed in the threaded through hole 53, and a plurality of grooves 55 are provided on the placement plate 44, and the threaded rod 54 can be inserted into the groove 55. When it is necessary to adjust the box body 6 to the position of the placement plate 44, the threaded rod 54 is rotated at this time, and the threaded rod 54 moves upward along the threaded through hole 53 and moves out of the corresponding groove 55, and the box body 6 is slid at this time, and the box body 6 drives the dovetail slider 51 to slide in the dovetail chute 50, and when it slides to a suitable position, the threaded rod 54 is rotated in the opposite direction, so that the threaded rod 54 is inserted into the corresponding groove 55, and the box body 6 is limited.

[0021] Furthermore, as shown in the figure, the second hand wheel 60 is fixedly mounted on the screw rod 40 of the present embodiment. Rotating the screw rod 40 by the second hand wheel 60 is more convenient and labor-saving.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ventilation device for a laser welding machine, comprising a box body (1), a plurality of air inlets (2) are provided on the side of the box body (1), a plurality of air outlets (3) are provided on the top side of the box body (1), a suction fan (4) is connected and installed at the air outlet (3), a filter screen (9) is provided between the air inlet (2) and the air outlet (3), the filter screen (9) is located in the box body (1), and the air inlet (2) is connected to a box body (6) with an opening on one side through a pipeline (5), characterized in that: A plurality of rotating shafts (7) are rotatably mounted on one side of the opening of the box body (6), and air guide plates (8) are fixedly mounted on the rotating shafts (7). The plurality of air guide plates (8) can close the opening of the box body (6), and a driving device capable of driving the plurality of rotating shafts (7) to rotate is provided on the box body (6).

2. A ventilation device for a laser welding machine according to claim 1, characterized in that: The driving device comprises a gear (20), one end of a rotating shaft (7) protrudes out of the box body (6), one end of the rotating shaft (7) is fixedly mounted with a coaxial gear (20), adjacent gears (20) are connected by an odd number of transmission wheels (21), a coaxial worm wheel (22) is fixedly mounted on one of the rotating shafts (7), one side of the worm wheel (22) is meshingly provided with a worm (23), the worm (23) is rotatably mounted on the box body (1) through a plurality of shaft seats, and a first hand wheel (24) is fixedly mounted on one end of the worm (23).

3. A ventilation device for a laser welding machine according to claim 1, characterized in that: A through groove (30) is provided on one side of the box body (1), and a slot (31) is provided on the other side of the box body (1). The through groove (30) and the slot (31) are plugged and matched to install a same filter screen (9). A baffle (32) is fixedly installed on one side of the filter screen (9), and a sealing gasket (35) is provided between the baffle (32) and the box body (1). A rotating plate (33) is contact-matchedly provided on one side of the baffle (32), and the upper side of the rotating plate (33) is fixedly installed on a horizontal shaft (34), and the horizontal shaft (34) is rotatably installed on the box body (1).

4. A ventilation device for a laser welding machine according to claim 1, characterized in that: Each of the box bodies (6) is provided with a corresponding group of cranes capable of driving the box body (6) to move up and down. The pipeline (5) is a hose. The cranes include screw rods (40). Each group of cranes is provided with two screw rods (40) and a base plate (41). The screw rods (40) are rotatably mounted on the corresponding base plates (41) through bearings. The outer peripheries of the screw rods (40) are respectively threadedly mounted with screw nuts (42). One side of the screw nuts (42) is respectively hinged with spring rods (43). The movable ends of the spring rods (43) in the same group are fixedly connected to the same placement plate (44). The box body (6) is mounted on the placement plate (44).

5. A ventilation device for a laser welding machine according to claim 4, characterized in that: The placement plates (44) are provided with dovetail slide grooves (50) respectively, and dovetail sliders (51) are slidably mounted in the dovetail slide grooves (50), and the dovetail sliders (51) are fixedly mounted on the corresponding box body (6). A transverse plate (52) is fixedly mounted on one side of the box body (6), and a threaded through hole (53) is provided on the transverse plate (52), and a threaded rod (54) is installed in the threaded through hole (53). The placement plates (44) are provided with a plurality of grooves (55), and the threaded rod (54) can be inserted into the grooves (55).

6. A ventilation device for a laser welding machine according to claim 4, characterized in that: A second hand wheel (60) is fixedly mounted on each of the screw rods (40).

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