Vacuum cleaner shell welding device

Abstract

The present invention belongs to the field of welding technology, and specifically is a vacuum cleaner shell welding device, comprising a base, a heating part and a fixing part, the heating part comprising a first heater and a second heater for heating the throat and the shell respectively; the fixing part comprises a No. 1 clamp and a No. 2 clamp for clamping the throat and the shell respectively, and is characterized in that the fixing part also comprises: a No. 1 tube slidably mounted on the base, the No. 1 clamp is fixedly mounted on one end of the No. 1 tube; a No. 2 tube fixedly mounted on the base, the No. 2 clamp is mounted on the No. 2 tube; a rotating plate rotatably mounted on the base, the first heater and the second heater are respectively located on the upper surface and the lower surface of the rotating plate; the No. 1 clamp and the No. 2 clamp are provided to clamp the throat and the shell, and after the throat and the shell are heated and melted, the throat is directly controlled to move downward to perform welding. Compared with the existing device, the travel of the throat movement is reduced, the use is convenient and quick, and the work efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of welding, in particular to a vacuum cleaner shell welding device. Background Art

[0002] With the development of the economy, more and more families choose vacuum cleaners instead of traditional brooms for house cleaning. A vacuum cleaner is a device that uses high-speed rotating blades to generate negative pressure inside the shell of the vacuum cleaner to absorb dust and other garbage. The components of the vacuum cleaner include a shell, a throat, a motor, a dust collection bucket, a dust suction tube, etc. When processing the vacuum cleaner, welding devices such as hot pressing welding are required to weld the shell and the throat.

[0003] A patent application with publication number CN204747816U discloses a welding device for a vacuum cleaner shell, including a bracket, and also includes: a heating device installed on the bracket; a pressing device provided on the bracket; a heat dissipation device provided on the bracket; heating the throat and the shell by the heating device, pressing the heated throat and the shell by the pressing device, and cooling the connection between the throat and the shell by the heat dissipation device to quickly achieve welding of the throat and the shell.

[0004] When hot-pressing the vacuum cleaner shell, the surfaces to be welded in the throat and the shell are first heated, and then the two surfaces are butted together after heating. It is difficult for existing heating devices to simultaneously achieve the functions of heating two objects on one side and heating them together and aligning them. Therefore, in actual work, the throat and the shell are placed in two places for heating respectively. After the heating is completed, the throat is transferred to the shell, and then a pressing device is used to press the throat and the shell to achieve the welding action, which is more inconvenient to use.

[0005] To this end, the present invention provides a vacuum cleaner shell welding device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a vacuum cleaner shell welding device described in the present invention comprises a base, a heating part and a fixing part, the heating part comprises a first heater and a second heater for heating the throat and the shell respectively; the fixing part comprises a No. 1 clamp and a No. 2 clamp for clamping the throat and the shell respectively, and is characterized in that the fixing part also comprises: a No. 1 pipe slidably mounted on the base, the No. 1 clamp is fixedly mounted on one end of the No. 1 pipe; a No. 2 pipe fixedly mounted on the base, the No. 2 clamp is mounted on the No. 2 pipe; a rotating plate rotatably mounted on the base, the first heater and the second heater are respectively located on the upper surface and the lower surface of the rotating plate.

[0008] Preferably, the fixing part also includes: a pump body installed on the base; a plurality of circular holes opened on the No. 2 clamp and the No. 1 clamp, the No. 1 pipe, the No. 2 pipe, the No. 1 clamp and the No. 2 clamp all adopt a hollow structure, the No. 1 pipe is connected to the No. 1 clamp, the No. 2 pipe is connected to the No. 2 clamp, the pump body is connected to the No. 2 pipe, a No. 1 hose is installed between the No. 1 pipe and the No. 2 pipe, and the No. 1 pipe is connected to the No. 2 pipe through the No. 1 hose.

[0009] Preferably, the length of the No. 2 clamp is greater than the depth of the shell, and the portion of the No. 2 clamp that exceeds the shell still contains the circular hole.

[0010] Preferably, the fixing part further comprises: a ring rotatably mounted on the topmost second clamping jaw;

[0011] A disc is installed inside the circular ring, and a plurality of round rods are slidably installed on the disc; a connecting rod is used to drive the round rods to slide, one end of the connecting rod is rotatably installed on the circular ring, and the other end of the connecting rod is rotatably installed on the lower end of the round rod.

[0012] Preferably, the fixing part also includes: a ratchet for driving the circular ring to rotate, the ratchet being fixedly mounted on the outer circumference of the circular ring; a rack plate for driving the ratchet to rotate, the rack plate being slidably mounted on the topmost No. 2 clamp; a blocking block for driving the rack plate to slide, the blocking block being slidably mounted on the No. 2 tube, a No. 1 spring being installed between the blocking block and the No. 1 tube, and the blocking block being fixedly connected to the rack plate.

[0013] Preferably, a No. 2 spring is installed between the ratchet and the top No. 2 clamp, and the rack plate adopts a telescopic structure.

[0014] Preferably, the disc is connected to the top No. 2 clamp in an up-and-down sliding manner, the disc is connected to the circular ring in a threaded manner, and the connecting rod is connected to the circular rod in an up-and-down sliding manner.

[0015] Preferably, the round rod and the connecting rod adopt a hollow structure, an air inlet is opened on the round rod, a No. 2 hose is fixedly installed on one end of the connecting rod, one end of the No. 2 hose is connected to a circular plate, the circular plate is connected to several of the No. 2 hoses, a No. 3 hose is installed on the other end of the circular plate, and the No. 3 hose is connected to one of the No. 2 clamps.

[0016] Preferably, the fixing portion further comprises a slide bar slidably mounted on the No. 2 clamping jaw, and the slide bar is used to close the No. 3 hose.

[0017] Preferably, the fixing part also includes a pull rope for driving the slide bar to slide, one end of the pull rope is connected to the slide bar, and the other end of the pull rope is connected to the rotating plate, and a No. 3 spring is installed between the slide bar and the No. 2 clamp.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The vacuum cleaner shell welding device described in the present invention clamps the throat pipe and the shell by setting a No. 1 clamp and a No. 2 clamp. After the throat pipe and the shell are heated and melted, the throat pipe is directly controlled to move downward to perform welding. Compared with the existing device, the travel of the throat pipe is reduced, the use is convenient and quick, and the work efficiency is improved.

[0020] 2. The vacuum cleaner shell welding device described in the present invention, by setting a circular hole, after the shell and the throat are inserted into the No. 1 clamp and the No. 2 clamp, the pump body is controlled to start, and the shell and the throat can be fixed on the No. 1 clamp and the No. 2 clamp by generating a suction force at the circular hole. Compared with the fixing methods such as clamping and stretching, the deformation of the shell and the throat during fixing, which affects the accuracy of the welding position of the shell and the throat, is avoided. With the length of the No. 2 clamp being greater than the depth of the shell, the air in the working environment can be drawn away during welding to reduce the odor generated when the shell and the throat are heated and melted. With the air inlet on the round rod, the air around the throat and the shell can be circulated when the shell and the throat are in close contact, which helps to reduce the temperature at the connection point of the throat and the shell, accelerates the welding of the throat and the shell, and improves work efficiency.

[0021] 3. The vacuum cleaner shell welding device described in the present invention, by setting a circular ring and a circular rod, cooperates with a blocking block. When the pump body is started, the circular rod can automatically move to push the shell to move and adjust the position of the shell, thereby ensuring the accuracy of the position of the throat and the shell during welding and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the positions of the housing and the throat of the present invention;

[0025] Figure 3 is a cross-sectional view of the device of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the first clamping jaw and the second clamping jaw of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the No. 1 pipe of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the rack plate of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the air inlet of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the connecting rod of the present invention;

[0031] In the figure: 1. base; 2. first heater; 3. second heater; 4. No. 1 pipe; 5. No. 1 clamp; 6. No. 2 pipe; 7. No. 2 clamp; 8. rotating plate; 9. pump body; 10. round hole; 11. No. 1 hose; 12. round ring; 13. round disk; 14. round rod; 15. connecting rod; 16. ratchet; 17. rack plate; 18. blocking block; 19. No. 1 spring; 20. No. 2 spring; 21. air inlet; 22. No. 2 hose; 23. round plate; 24. No. 3 hose; 25. slide bar; 26. pull rope; 27. No. 3 spring; 100. shell; 200. throat. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1

[0034] like Figure 1 - Figure 8 As shown, a vacuum cleaner shell welding device according to an embodiment of the present invention includes a base 1, a heating part and a fixing part, the heating part includes a first heater 2 and a second heater 3 for heating the throat and the shell respectively; the fixing part includes a No. 1 clamp 5 and a No. 2 clamp 7 for clamping the throat and the shell respectively, and is characterized in that the fixing part also includes: a No. 1 tube 4 slidably mounted on the base 1, the No. 1 clamp 5 is fixedly mounted on one end of the No. 1 tube 4; a No. 2 tube 6 fixedly mounted on the base 1, the No. 2 clamp 7 is mounted on the No. 2 tube 6; and a rotating plate 8 rotatably mounted on the base 1, the first heater 2 and the second heater 3 are respectively located on the upper surface and the lower surface of the rotating plate 8.

[0035] Specifically, when the existing hot pressure welding device is in use, the throat 200 and the shell 100 need to be placed in two places for heating respectively. After the heating is completed, the throat 200 needs to be transferred to the shell 100, and then the throat 200 and the shell 100 are pressed by a pressing device to achieve the welding action, which is more troublesome to use; the first heater 2 and the second heater 3 adopt a structure of heating by electric resistance wire. Before work, the throat 200 is held with the No. 1 clamping jaw, and the shell 100 is put on the No. 2 clamping jaw 7, and the shell 100 is rotated so that the connection point between the shell 100 and the throat 200 is aligned with the throat 200, and then the first heater 2 and the second heater 3 are controlled to work, and the first heater 2 and the second heater 3 generate heat to melt the connection position between the shell 100 and the throat 200. After the heating is completed, the connecting rod 15 is controlled to rotate, driving the first heater 2 and the second heater 3 to rotate synchronously to one side of the shell 100. While the rotating plate 8 rotates, the No. 1 pipe 4 is controlled to move downward. The movement of the No. 1 pipe 4 drives the No. 1 clamp 5 and the throat 200 to move downward synchronously until the throat 200 and the shell 100 are in close contact. As the temperature decreases, the molten part where the throat 200 and the shell 100 are in contact solidifies, and the welding action of the shell 100 and the throat 200 is completed; by setting the No. 1 clamp 5 and the No. 2 clamp 7, the throat 200 and the shell 100 are clamped. After the throat 200 and the shell 100 are heated and melted, the throat 200 is directly controlled to move downward to perform hot pressing welding. Compared with the existing device, the moving stroke of the throat 200 is reduced, which is convenient and quick to use and improves work efficiency.

[0036] like Figure 2 , Figure 3 , Figure 4 As shown, the fixing part also includes: a pump body 9 installed on the base 1; a plurality of round holes 10 opened on the No. 2 clamp 7 and the No. 1 clamp 5, the No. 1 pipe 4, the No. 2 pipe 6, the No. 1 clamp 5 and the No. 2 clamp 7 all adopt a hollow structure, the No. 1 pipe 4 is connected to the No. 1 clamp 5, the No. 2 pipe 6 is connected to the No. 2 clamp 7, the pump body 9 is connected to the No. 2 pipe 6, a No. 1 hose 11 is installed between the No. 1 pipe 4 and the No. 2 pipe 6, and the No. 1 pipe 4 and the No. 2 pipe 6 are connected through the No. 1 hose 11.

[0037] Specifically, since the vacuum cleaner and the throat pipe 200 are generally made of materials with lower hardness such as plastic, there is a problem of deformation of the vacuum cleaner and the throat pipe 200 when they are fixed by clamping and stretching, which affects the accuracy of the welding position of the vacuum cleaner and the throat pipe 200; the pump body 9 adopts a suction pump. After the shell 100 and the throat pipe 200 are inserted into the No. 1 clamp 5 and the No. 2 clamp 7, the pump body 9 is controlled to start. When the pump body 9 is started, suction is generated at the circular hole 10, so that the shell 100 and the throat pipe 200 can be fixed on the No. 1 clamp 5 and the No. 2 clamp 7, thereby improving the above-mentioned problem.

[0038] like Figure 4 As shown, the length of the second clamping jaw 7 is greater than the depth of the housing 100 , and the portion of the second clamping jaw 7 that exceeds the housing 100 still contains a circular hole 10 .

[0039] Specifically, while the pump body 9 fixes the shell 100 and the throat 200 on the No. 1 clamp 5 and the No. 2 clamp 7 through suction, the circular hole 10 in the part where the No. 2 clamp 7 does not contact the shell 100 can draw away the air in the working environment to reduce the odor generated when the shell 100 and the throat 200 are heated and melted.

[0040] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the fixing part also includes: a ring 12 rotatably mounted on the top No. 2 clamp 7; a disk 13 mounted inside the ring 12, and a plurality of round rods 14 are slidably mounted on the disk 13; a connecting rod 15 for driving the round rods 14 to slide, one end of the connecting rod 15 is rotatably mounted on the ring 12, and the other end of the connecting rod 15 is rotatably mounted on the lower end of the round rod 14.

[0041] Specifically, after the shell 100 is inserted into the No. 2 clamp 7, the ring 12 is rotated. The rotation of the ring 12 causes the connecting rod 15 to rotate. The rotation of the connecting rod 15 causes the round rods 14 to move horizontally in a direction away from each other until several round rods 14 are in contact with the holes of the shell 100. The position of the shell 100 can be adjusted so that the holes of the shell 100 are aligned with the throat 200. After the position of the shell 100 is adjusted, the pump body 9 is controlled to start so that the No. 2 clamp 7 fixes the shell 100. Then the ring 12 is controlled to rotate so that the round rods 14 move horizontally in a direction close to each other until the round rods 14 return to their initial state and are not in contact with the shell 100.

[0042] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the fixed part also includes: a ratchet 16 for driving the ring 12 to rotate, the ratchet 16 is fixedly mounted on the outer circumference of the ring 12; a rack plate 17 for driving the ratchet 16 to rotate, the rack plate 17 is slidably mounted on the top No. 2 clamp 7; a blocking block 18 for driving the rack plate 17 to slide, the blocking block 18 is slidably mounted on the No. 2 tube 6, a No. 1 spring 19 is installed between the blocking block 18 and the No. 1 tube 4, and the blocking block 18 is fixedly connected to the rack plate 17.

[0043] like Figure 6 As shown, a No. 2 spring 20 is installed between the ratchet 16 and the top No. 2 clamp 7, and the rack plate 17 adopts a telescopic structure.

[0044] Specifically, the rack plate 17 is telescopic to transmit the ratchet 16 in one direction. After the shell 100 is inserted into the No. 2 clamp 7, the pump body 9 is controlled to start, and the No. 1 pipe 4 and the No. 2 pipe 6 are sucked. The blocking block 18 slides backward due to the suction force, and the blocking block 18 slides backward to drive the rack plate 17 to move backward synchronously. The movement of the rack plate 17 causes the ratchet 16 to rotate, and the rotation of the ratchet 16 drives the ring 12 to rotate. The rotation of the ring 12 causes the round rod 14 to move to adjust the position of the shell 100. At this time, the No. 2 spring 20 is stretched. When the rack plate 17 moves to the point where the ratchet 16 is not in contact, the ratchet 16 rotates to the initial state under the action of the elastic force of the No. 2 spring 20, so that the round rod 14 moves to the point where it is not in contact with the shell 100, thereby preventing the heat of the second heater 3 from being transferred to the non-connected part of the shell 100 through the round rod 14.

[0045] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the disc 13 is connected to the top second clamping jaw 7 by sliding up and down, the disc 13 is connected to the circular ring 12 by threading, and the connecting rod 15 is connected to the circular rod 14 by sliding up and down.

[0046] Specifically, in the initial state, the uppermost end of the round rod 14 is flush with the uppermost end of the No. 2 clamp 7; when the ring 12 rotates to drive the round rod 14 to move away from each other, since the ring 12 and the disk 13 are threadedly connected, the disk 13 can move upward, and the movement of the disk 13 drives the round rod 14 to move upward synchronously, that is, the round rod 14 moves upward while the rod moves away from each other, so the position of the shell 100 can be adjusted; when fixing the shell 100, it is only necessary to insert the shell 100 into the No. 2 clamp 7, and there is no need to control the extension and retraction of the No. 2 clamp 7 or the extension and retraction of the round rod 14, so as to put the round rod 14 into the hole of the shell 100, which is easy to use.

[0047] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the round rod 14 and the connecting rod 15 adopt a hollow structure, an air inlet 21 is opened on the round rod 14, a No. 2 hose 22 is fixedly installed at one end of the connecting rod 15, one end of the No. 2 hose 22 is connected to a circular plate 23, the circular plate 23 is connected to several No. 2 hoses 22, a No. 3 hose 24 is installed at the other end of the circular plate 23, and the No. 3 hose 24 is connected to one of the No. 2 clamps 7.

[0048] like Figure 3 , Figure 6 As shown, the fixing portion further includes a slide bar 25 slidably mounted on the No. 2 clamping jaw 7 , and the slide bar 25 is used to close the No. 3 hose 24 .

[0049] Specifically, after the throat 200 is in close contact with the shell 100, the slide bar 25 is moved to connect the No. 3 hose 24 with the interior of the No. 2 clamp 7, so that the air inlet 21 of the round rod 14 can draw away the surrounding air, allowing air to circulate around the throat 200 and the shell 100, which helps to reduce the temperature at the connection point of the throat 200 and the shell 100, accelerate the welding of the throat 200 and the shell 100, and improve work efficiency.

[0050] like Figure 4 , Figure 6 As shown, the fixing part also includes a pull rope 26 for driving the slide bar 25 to slide, one end of the pull rope 26 is connected to the slide bar 25, and the other end of the pull rope 26 is connected to the rotating plate 8. A No. 3 spring 27 is installed between the slide bar 25 and the No. 2 clamp 7.

[0051] Specifically, in the initial state, the pull rope 26 is in a relaxed state. After the first heater 2 and the second heater 3 rotate a certain angle and the throat 200 is in close contact with the shell 100, the first heater 2 and the second heater 3 continue to rotate, and the pull rope 26 can be used to drive the slide bar 25 to move, which is easy to use.

[0052] Working principle: put the shell 100 on the No. 2 clamp 7, and the throat 200 is put inside the No. 1 clamp 5, then control the pump body 9 to start, suck the No. 1 pipe 4 and the No. 2 pipe 6, and the blocking block 18 slides backward due to the suction force, and the blocking block 18 slides backward to drive the rack plate 17 to move backward synchronously, and the movement of the rack plate 17 causes the ratchet 16 to rotate, and the rotation of the ratchet 16 drives the ring 12 to rotate, and the rotation of the ring 12 drives the round rod 14 to move away from each other through the connecting rod 15. When the rotation of the ring 12 drives the round rod 14 to move away from each other, since the ring 12 and the disc 13 are threadedly connected, the disc 13 can move upward, and the movement of the disc 13 drives the round rod 14 to move upward synchronously, that is, the round rod 14 The housing 100 is adjusted by moving one side up and one side rod away from each other. At this time, the No. 2 spring 20 is stretched. When the rack plate 17 moves to the point where the ratchet 16 is not in contact, the ratchet 16 rotates to the initial state under the elastic force of the No. 2 spring 20, so that the round rod 14 moves to the point where it is not in contact with the housing 100, thereby preventing the heat of the second heater 3 from being transferred to the non-connected part of the housing 100 through the round rod 14. After the position of the housing 100 is adjusted, the blocking block 18 moves backward to the point where the No. 2 pipe 6 and the No. 2 clamp 7 are connected. The suction force of the pump body 9 generates suction force at the circular holes 10 of the No. 1 clamp 5 and the No. 2 clamp 7, so that the housing 100 and the throat 200 can be fixed on the No. 1 clamp 5 and the No. 2 clamp 7. The shell 100 and the throat 200 are fixed on the No. 1 clamp 5 and the No. 2 clamp 7 by suction, and the circular hole 10 of the part of the No. 2 clamp 7 that is not in contact with the shell 100 can extract the air in the working environment to reduce the odor generated when the shell 100 and the throat 200 are heated and melted. Then the first heater 2 and the second heater 3 are controlled to work, and the first heater 2 and the second heater 3 generate heat to melt the connection position of the shell 100 and the throat 200. After the heating is completed, the connecting rod 15 is controlled to rotate, driving the first heater 2 and the second heater 3 to rotate synchronously to one side of the shell 100. While the rotating plate 8 rotates, the No. 1 pipe 4 is controlled to move downward, and the movement of the No. 1 pipe 4 drives the No. 1 clamp 5 and the throat 20 0 moves downward synchronously until the throat 200 and the shell 100 are in close contact. After the first heater 2 and the second heater 3 rotate a certain angle and the throat 200 and the shell 100 are in close contact, the first heater 2 and the second heater 3 continue to rotate and the slide bar 25 can be driven to move by the pull rope 26. The slide bar 25 moves so that the third hose 24 is connected with the inside of the second clamp 7, so that the air inlet 21 of the round rod 14 can draw away the surrounding air, so that the air around the throat 200 and the shell 100 can circulate, which helps to reduce the temperature at the connection point of the throat 200 and the shell 100. As the temperature decreases, the molten part of the throat 200 and the shell 100 in contact solidifies, that is, the welding action of the shell 100 and the throat 200 is completed.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vacuum cleaner housing welding device, comprising a base (1), a heating part and a fixing part, wherein the heating part comprises a first heater (2) and a second heater (3) for heating the throat and the housing respectively; the fixing part comprises a first clamping jaw (5) and a second clamping jaw (7) for clamping the throat and the housing respectively, wherein: The fixed part also includes: A No. 1 pipe (4) is slidably mounted on the base (1), and the No. 1 clamping jaw (5) is fixedly mounted on one end of the No. 1 pipe (4); A No. 2 pipe (6) is fixedly mounted on the base (1), and the No. 2 clamp (7) is mounted on the No. 2 pipe (6); A rotating plate (8) mounted on the base (1) is rotated, wherein the first heater (2) and the second heater (3) are respectively located on the upper surface and the lower surface of the rotating plate (8); A pump body (9) mounted on the base (1); A plurality of circular holes (10) are provided on the second clamping jaw (7) and the first clamping jaw (5); the first pipe (4), the second pipe (6), the first clamping jaw (5) and the second clamping jaw (7) all have a hollow structure; the first pipe (4) and the first clamping jaw (5) are connected; the second pipe (6) and the second clamping jaw (7) are connected; the pump body (9) is connected to the second pipe (6); a first hose (11) is installed between the first pipe (4) and the second pipe (6); the first pipe (4) and the second pipe (6) are connected via the first hose (11); the length of the second clamping jaw (7) is greater than the depth of the shell (100); and the portion of the second clamping jaw (7) that exceeds the shell (100) still contains the circular hole (10); A ring (12) rotatably mounted on the topmost second clamping jaw (7); A disc (13) is installed inside the circular ring (12), a plurality of round rods (14) are slidably installed on the disc (13), the disc (13) is slidably connected to the top second clamping jaw (7) up and down, and the disc (13) is threadedly connected to the circular ring (12); a connecting rod (15) for driving the round rod (14) to slide, one end of the connecting rod (15) being rotatably mounted on the circular ring (12), the other end of the connecting rod (15) being rotatably mounted on the lower end of the round rod (14), the connecting rod (15) and the round rod (14) being slidably connected up and down, the round rod (14) and the connecting rod (15) being of a hollow structure, an air inlet (21) being provided on the round rod (14), a No. 2 hose (22) being fixedly mounted on one end of the connecting rod (15), one end of the No. 2 hose (22) being connected to a circular plate (23), the circular plate (23) being connected to a plurality of the No. 2 hoses (22), a No. 3 hose (24) being mounted on the other end of the circular plate (23), the No. 3 hose (24) being connected to one of the No. 2 clamping jaws (7); a ratchet (16) for driving the circular ring (12) to rotate, wherein the ratchet (16) is fixedly mounted on the outer circumference of the circular ring (12); a rack plate (17) for driving the ratchet wheel (16) to rotate, the rack plate (17) being slidably mounted on the top second clamping jaw (7), a second spring (20) being mounted between the ratchet wheel (16) and the top second clamping jaw (7), and the rack plate (17) being a telescopic structure; A blocking block (18) drives the rack plate (17) to slide, the blocking block (18) is slidably mounted on the No. 2 pipe (6), a No. 1 spring (19) is mounted between the blocking block (18) and the No. 1 pipe (4), and the blocking block (18) is fixedly connected to the rack plate (17).

2. A vacuum cleaner housing welding device according to claim 1, characterized in that: The fixing part also includes a slide bar (25) slidably mounted on the No. 2 clamping jaw (7), and the slide bar (25) is used to close the No. 3 hose (24).

3. A vacuum cleaner housing welding device according to claim 2, characterized in that: The fixing part also includes a pull rope (26) for driving the slide bar (25) to slide, one end of the pull rope (26) is connected to the slide bar (25), and the other end of the pull rope (26) is connected to the rotating plate (8), and a No. 3 spring (27) is installed between the slide bar (25) and the No. 2 clamp (7).

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