Air compressor shell closing and helium filling device and method

Abstract

The application discloses an air compressor shell closing and helium filling device and a shell closing and helium filling method. The device comprises a rack, a conveying line arranged on the rack, and a plurality of jigs conveyed along the conveying line, and further comprises a closing mechanism and a helium filling mechanism arranged on the rack. The device can automatically screw and fill helium into the shell, automatically close the shell, and replace the water vapor in the shell, thereby ensuring the dryness of the shell and preventing water vapor corrosion. The closing mechanism can press the shell end cover by using a center pressing piece, thereby ensuring the stability of the whole product during closing. The helium filling mechanism can realize the butt joint of the upper air inlets of two products, thereby improving the adaptability of the device and saving equipment cost. The helium filling is performed twice by using a first filling assembly and a second filling assembly to fill air into the product from the upper air inlets and the lower air inlets, thereby realizing twice helium filling, effectively removing the water vapor in the shell, and further ensuring the dryness of the shell.

Description

Technical Field

[0001] This invention relates to the field of air compressors, specifically to an air compressor housing closure and helium filling device and method. Background Technology

[0002] The air compressor's outer casing includes end caps and a housing. The end caps need to be screwed onto the housing to close it. After closing, air needs to be blown into the housing to remove moisture and ensure the internal components are dry. The existing device cannot be used to close or fill the casing with helium for two air compressors with different air inlet positions.

[0003] Therefore, it is necessary to provide an air compressor housing closure and helium filling device and a method for closure and helium filling. Summary of the Invention

[0004] The present invention provides an air compressor housing closure and helium filling device and method, which effectively solves the problem that existing devices cannot be adapted to the closure and helium filling of different air compressors.

[0005] The technical solution adopted in this invention is: An air compressor housing closing and helium filling device includes a frame, a conveyor line arranged on the frame along the X-axis, and several fixtures conveyed along the conveyor line. It also includes a closing mechanism and a helium filling mechanism arranged sequentially on the frame along the X-axis.

[0006] Furthermore, the closing mechanism includes a first support mounted on the frame, a first lifting component mounted on the frame for lifting the fixture, a first linear guide rail mounted vertically on the first support, a lifting frame slidably mounted on the first linear guide rail, a first driving component mounted on the first support for driving the lifting frame to lift, several screw fastening machines mounted on the lifting frame, and a central pressing component mounted on the lifting frame.

[0007] Furthermore, the lifting frame includes a first vertical plate slidably connected to a first linear guide rail, a lower horizontal plate disposed at the lower end of the first vertical plate, an upper horizontal plate disposed at the upper end of the first vertical plate, a support column connecting the upper horizontal plate and the lower horizontal plate, a movable plate, and a locking strip disposed on the lower horizontal plate. The locking strip and the lower horizontal plate form a locking groove, and the movable plate is bolted in the locking groove.

[0008] Furthermore, the movable plate is provided with a vertical through hole, and the central pressing component includes a connecting block provided on the upper surface of the movable plate, a first linear bearing provided on the connecting block, a lifting shaft sleeved on the first linear bearing, a limiting end provided on the upper end of the lifting shaft, a pressing block provided on the lower end of the lifting shaft, and a first spring sleeved on the lifting shaft. The two ends of the first spring abut against the upper surface of the pressing head and the lower surface of the first linear bearing, respectively.

[0009] Furthermore, the screw-locking mechanism includes several mounting blocks disposed on the lower end face of the movable plate, several sleeves respectively rotatably disposed on the mounting blocks, several motors disposed on the upper horizontal plate, and several couplings, each of the couplings connecting the upper end of a sleeve to the lower end of the motor shaft.

[0010] Furthermore, the helium filling mechanism includes a second support mounted on the frame, a second lifting assembly mounted on the frame for raising and lowering the fixture, a pressing assembly mounted on the second support, a first inflation assembly mounted on the second support, and a second inflation assembly mounted on the frame.

[0011] Furthermore, the pressing assembly includes a third support mounted on the second support, a second linear bearing mounted on the second support, a second shaft mounted on the second linear bearing, a third cylinder mounted on the third support for driving the third shaft to rise and fall, and a second pressure head mounted at the lower end of the second shaft.

[0012] Furthermore, the second support is provided with an arc-shaped hole and a first strip-shaped hole extending along the X direction. The first inflation assembly includes a rotating plate rotatably mounted on a second linear bearing at one end, a turntable rotatably mounted on the second linear bearing and bolted to the rotating plate at the upper end face of the second support, a movable block slidably connected to the first strip-shaped hole and fixedly connected to the upper end face of the rotating plate, a second driving assembly mounted on the second support for driving the movable block to slide along the first strip-shaped hole, a first cylinder and a second cylinder mounted on the rotating plate, a second limiting head mounted at the upper end of the second cylinder, a first cylinder mounted at the lower end of the rotating plate, a first connecting frame mounted at the output end of the first cylinder, and a first elastic inflation component mounted on the first connecting frame. The second cylinder is slidably connected to the arc-shaped hole, the lower end face of the second limiting head abuts against the second support, the movable block is provided with a second strip-shaped hole extending along the Y-axis direction, the first cylinder is slidably connected to the second strip-shaped hole, and the first strip-shaped hole is located between the second linear bearing and the arc-shaped hole.

[0013] Furthermore, the second inflation assembly includes a second base mounted on the frame, a second cylinder mounted on the second base, a second connecting frame mounted on the output end of the second cylinder, and a second elastic inflation component mounted on the second connecting frame. The second elastic inflation component has the same structure as the first elastic inflation component. The second elastic inflation component includes a second linear bearing horizontally mounted on the connecting frame, a second column sleeved on the second linear bearing, mounting brackets and limiting plates respectively mounted at both ends of the second column, an air nozzle mounted on the mounting bracket, and a second spring sleeved on the second column. The two ends of the second spring abut against the mounting bracket and the second connecting frame respectively.

[0014] The method for closing and filling the air compressor housing with helium, using the aforementioned air compressor housing closing and helium filling device, includes the following steps: S1, the conveyor line moves the conveyor fixture to the corresponding position of the closing mechanism; S2, the closing mechanism closes the housing screws; S3, the conveyor line moves the conveyor fixture to the corresponding position of the helium filling mechanism; S4, the helium filling mechanism fills the housing with helium.

[0015] Beneficial effects of the invention: The entire device can automatically tighten screws on the outer shell and fill it with helium, automatically close the outer shell, and replace the moisture inside the outer shell to ensure that the inside of the outer shell is dry and prevent moisture corrosion.

[0016] The closing mechanism of this application can use the central pressure component to press the end cap of the housing, ensuring the stability of the entire product when closed.

[0017] The helium filling mechanism enables docking of the gas inlets of two products, improving the adaptability of the device and facilitating cost savings.

[0018] Helium filling is performed in two stages using a first filling component and a second filling component, respectively, through the upper and lower gas inlets. This two-stage helium filling effectively removes moisture from the shell and further ensures that the interior of the shell remains dry. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of an air compressor housing closure and helium filling device provided for an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the closing mechanism of the air compressor housing closing and helium filling device provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the central pressure component of the air compressor housing closing and helium filling device provided in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram from one perspective of the helium filling mechanism of the air compressor housing closing and helium filling device provided in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram from another perspective of the helium filling mechanism of the air compressor housing closing and helium filling device provided in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram from one perspective of the second support, the first inflation component, and the second inflation component of the helium filling mechanism of the air compressor housing closing and helium filling device provided in the embodiments of this application.

[0025] Figure 7 This is a schematic diagram from another perspective of the second support, the first inflation component, and the second inflation component of the helium filling mechanism of the air compressor housing closing helium filling device provided in the embodiments of this application.

[0026] Figure 8 This is a schematic diagram of the second elastic inflation member, the second connector, and the second cylinder of the helium filling mechanism of the air compressor housing closing helium filling device provided in the embodiments of this application.

[0027] The diagram is labeled as follows: 1. Frame; 2. Conveyor line; 3. Fixture; 4. Closing mechanism; 5. Helium filling mechanism; 41. Support No. 1; 42. Linear guide rail No. 1; 43. Lifting frame; 44. Drive assembly No. 1; 45. Screw fastening machine; 46. Center pressing component; 431. Vertical plate No. 1; 432. Lower horizontal plate; 433. Upper horizontal plate; 434. Support column; 435. Moving plate; 436. Clamping bar; 461. Connecting block; 462. Linear bearing No. 1; 463. Lifting shaft; 464. Limiting end; 465. Pressing block; 466. Spring No. 1; 451. Mounting block; 452. Sleeve; 453. Motor; 454. Coupling; 51. Support No. 2; 52. Pressing assembly; 53. First inflation assembly; 54. Second inflation assembly; 52. 1. Support No. 3; 522. Linear Bearing No. 2; 523. Shaft No. 2; 524. Cylinder No. 3; 525. Pressure Head No. 2; 501. Strip Hole No. 1; 502. Arc Hole; 531. Rotating Plate; 532. Turntable; 533. Moving Block; 534. Drive Assembly No. 2; 535. Cylinder No. 1; 536. Limiting Head No. 2; 537. Cylinder No. 1; 538. Connecting Frame No. 1; 539. Elastic Inflatable Component No. 1; 503. Strip Hole No. 2; 541. Base No. 2; 542. Cylinder No. 2; 543. Connecting Frame No. 2; 544. Elastic Inflatable Component No. 2; 5441. Linear Bearing No. 2; 5442. Column No. 2; 5443. Mounting Frame; 5444. Limiting Plate; 5445. Air Nozzle; 5446. Spring No. 2; 100. Product. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, the first embodiment provided in this application is an air compressor housing closing and helium filling device. Its structure includes a frame 1, a conveyor line 2 arranged on the frame 1 along the X-axis direction, and a plurality of fixtures 3 conveyed along the conveyor line 2. It also includes a closing mechanism 4 and a helium filling mechanism 5 arranged sequentially on the frame 1 along the X-axis direction.

[0030] In actual use, the product 100 to be assembled is transported to the corresponding position of the closing mechanism 4 via the conveyor line 2. Then the closing mechanism 4 closes the product 100. Then the conveyor line 2 transports the fixture 3 to the helium filling mechanism 5. Then the helium filling mechanism 5 fills the product 100 with helium.

[0031] The above design enables the rapid tightening of bolts on the air compressor housing and allows the helium filling mechanism 5 to fill the cavity inside the housing with helium, creating airflow inside the housing and replacing the water vapor inside.

[0032] Specifically: such as Figure 2 As shown, the closing mechanism 4 includes a first support 41 mounted on the frame 1, a first lifting assembly mounted on the frame 1 for raising and lowering the fixture 3, a first linear guide rail 42 vertically mounted on the first support 41, a lifting frame 43 slidably mounted on the first linear guide rail 42, a first drive assembly 44 mounted on the first support 41 for driving the lifting frame 43 to rise and fall, several screw fastening machines 45 mounted on the lifting frame 43, and a central pressing component 46 mounted on the lifting frame 43. It should be noted that the conveyor line 2 is a double-speed chain, and the conveyor line 2 stops when the fixture 3 moves to the corresponding position of the closing mechanism 4. The first drive assembly 44 can be a hydraulic cylinder, a pneumatic cylinder, or a linear module.

[0033] In actual use, after the fixture 3 moves to the bottom of the closing mechanism 4, the first lifting component lifts the fixture 3 so that the fixture 3 is separated from the conveyor line 2. Then, the first drive component 44 drives the lifting frame 43 to move down, so that the center pressing component 46 presses down on the end cap of the product 100, so that the screw locking component aligns with the bolt end pre-installed on the product 100 and tightens the bolt. After the closing mechanism 4 is completed, the first lifting component moves down so that the fixture 3 returns to the conveyor line 2 and moves along the conveyor line 2 to the helium filling mechanism 5.

[0034] In the above design, the structural design and specific implementation of the closing mechanism 4 can effectively lock the product 100. It can press the center of the end cap of the product 100 using the central pressing part 46 to prevent the product 100 from shaking during the locking process.

[0035] Specifically: such as Figure 2 As shown, the lifting frame 43 includes a first vertical plate 431 slidably connected to a first linear guide rail 42, a lower horizontal plate 432 disposed at the lower end of the first vertical plate 431, an upper horizontal plate 433 disposed at the upper end of the first vertical plate 431, a support column 434 connecting the upper horizontal plate 433 and the lower horizontal plate 432, a moving plate 435, and a retaining strip 436 disposed on the lower horizontal plate 432. The retaining strip 436 and the lower horizontal plate 432 form a retaining groove. The moving plate 435 is bolted into the retaining groove. The upper horizontal plate 433 is connected to a first drive assembly 44.

[0036] In actual use, the upper horizontal plate 433 is driven to rise and fall by the first drive component 44, so that the upper horizontal plate 433 drives the first vertical plate 431, the lower horizontal plate 432, the support column 434, the moving plate 435 and the clamping bar 436 to rise and fall synchronously.

[0037] In the above design, the structural design and specific implementation of the lifting frame 43 can ensure stable lifting along the first linear guide rail 42, and ensure that the central pressing component 46 and the screw fastening machine 45 lift synchronously and stably.

[0038] Specifically: such as Figure 2 and Figure 3 As shown, the movable plate 435 is provided with a vertical through hole, and the central pressing component 46 includes a connecting block 461 provided on the upper end face of the movable plate 435, a first linear bearing 462 provided on the connecting block 461, a lifting shaft 463 sleeved on the first linear bearing 462, a limiting end 464 provided on the upper end of the lifting shaft 463, a pressing block 465 provided on the lower end of the lifting shaft 463, and a first spring 466 sleeved on the lifting shaft 463. The two ends of the first spring 466 abut against the upper end face of the pressing head and the lower end face of the first linear bearing 462, respectively.

[0039] In actual use, the movable plate 435 is fixed in the slot by bolts. As the movable plate 435 moves down with the lifting frame 43, when the pressure block 465 contacts the end cap of the product 100, the central pressure component 46 continues to descend with the movable plate 435. Before the first drive assembly 44 stops driving the descent, the lifting shaft 463 moves up relative to the first linear bearing 462. At this time, the first spring 466 is compressed until the first drive assembly 44 stops driving.

[0040] In the above design, the structural design and specific implementation of the central pressure component 46 can reduce the impact of the pressure block 465 on the end cap of the product 100 through the elastic change of the first spring 466, effectively achieving buffering when the pressure block 465 contacts the product 100, and preventing damage to the end face of the product 100.

[0041] Specifically: such as Figure 2 As shown, the screw fastening machine 45 includes several mounting blocks 451 disposed on the lower end face of the movable plate 435, several sleeves 452 respectively rotatably disposed on the mounting blocks 451, several motors 453 disposed on the upper horizontal plate 433, and several couplings 454. Each coupling 454 connects the upper end of a sleeve 452 to the lower end of the motor 453 shaft. The lower end of the sleeve 452 has a polygonal opening for engaging with bolts.

[0042] In actual use, after the lifting frame 43 descends along the first linear guide rail 42, the lower end of the sleeve 452 engages with the pre-installed bolts on the product 100. The motor 453 drives the coupling 454 to rotate, causing the sleeve 452 to rotate synchronously. The rotation of the sleeve 452 enables the bolts to be tightened until the product 100 is tightened.

[0043] In the above design, by mounting the sleeve 452 of the screw fastening machine 45 on the moving plate 435, the movable plate 435 and the center pressure piece 46 with different sleeves 452 can be replaced according to the detachable relationship between the moving plate 435 and the lower horizontal plate 432 to meet the bolts required for different models of products 100.

[0044] Specifically: such as Figure 4 As shown, the helium filling mechanism 5 includes a second support 51 mounted on the frame 1, a second lifting assembly (not shown) mounted on the frame 1 for lifting the fixture 3, a pressing assembly 52 mounted on the second support 51, a first inflation assembly 53 mounted on the second support 51, and a second inflation assembly 54 mounted on the frame 1.

[0045] It should be noted that both air compressors have two air ports (upper and lower). When filling with helium, first use the first filling component 53 to connect with the upper air port to fill with helium, and then disconnect the first filling component 53 from the upper air port; then use the second filling component 54 to connect with the lower air port to fill with helium.

[0046] In actual use, when the fixture 3 moves with the conveyor line 2 to the corresponding position of the helium filling mechanism 5, the second lifting component lifts the fixture 3 from the conveyor line 2, and then the pressing component 52 presses the end cap of the product 100. The first inflation component 53 and the second inflation component 54 inflate the product 100 in sequence.

[0047] In the above design, the structural design and specific implementation of the helium filling mechanism 5 can ensure stable helium filling of the product 100. The first filling component 53 and the second filling component 54 fill the product 100 with helium in sequence, which can achieve a more extensive purging of the inside of the shell and ensure that the water vapor inside the shell is effectively replaced.

[0048] Specifically: such as Figure 5 As shown, the pressing assembly 52 includes a third support 521 mounted on the second support 51, a second linear bearing 522 mounted on the second support 51, a second shaft 523 sleeved on the second linear bearing 522, a third cylinder 524 mounted on the third support 521 for driving the third shaft to rise and fall, and a second pressing head 525 mounted at the lower end of the second shaft 523.

[0049] In actual use, after fixture 3 is lifted by the second lifting assembly, cylinder 3 drives shaft 523 to move downward along linear bearing 522, causing shaft 523 to move pressure head 525 downward and press against end cap of product 100. After product 100 is filled with helium, cylinder 524 drives shaft 523 to move upward, causing pressure head 525 to disengage from product 100.

[0050] In the above design, the structural design and specific implementation of the pressing component 52 can effectively achieve the pressing of the product 100 during inflation.

[0051] Specifically: such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the second support 51 is provided with an arc-shaped hole 502 and a first strip-shaped hole 501 extending along the X direction. The first inflation assembly 53 includes a rotating plate 531 rotatably mounted on a second linear bearing 522 at one end, a turntable 532 rotatably mounted on the second linear bearing 522 and bolted to the rotating plate 531 at the upper end face of the second support 51, a moving block 533 slidably connected to the first strip-shaped hole 501 and fixedly connected to the upper end face of the rotating plate 531, a second drive assembly 534 mounted on the second support 51 for driving the moving block 533 to slide along the first strip-shaped hole 501, and a first cylinder 53 mounted on the rotating plate 531. The system includes a second cylinder, a second limiting head 536 located at the upper end of the second cylinder, a first cylinder 537 located at the lower end of the rotating plate 531, a first connecting frame 538 located at the output end of the first cylinder 537, and a first elastic inflatable component 539 located on the first connecting frame 538. The second cylinder is slidably connected to the arc-shaped hole 502, the lower end face of the second limiting head 536 abuts against the second support 51, the moving block 533 is provided with a second strip hole 503 extending along the Y-axis direction, the first cylinder 535 is slidably connected to the second strip hole 503, and the first strip hole 501 is located between the second linear bearing 522 and the arc hole 502.

[0052] It should be noted that this application applies to two products 100. Both products 100 include an upper air port and a lower air port. The angle of the upper air port differs, while the angle of the lower air port is the same. The upper air port corresponds to the first inflation component 53, and the lower air port corresponds to the second inflation component 54. The air port angles of the two products 100 and the first inflation component 53 are inconsistent. Therefore, the first inflation component 53 needs to adjust the angle for both products 100. The second drive component 534 can be either a cylinder or a lead screw; in this embodiment, it is a cylinder.

[0053] In actual use, when product 100 is lifted by the second lifting component along with fixture 3 and pressed by the pressing component 52, the first connecting frame 538 is driven by the first cylinder 537 to move to one side of product 100, so that the first connecting frame 538 drives the first elastic inflatable component 539 to move synchronously, so that the first elastic inflatable component 539 is connected with the upper inflation port of product 100 and inflated, and helium flows out from the lower air port. When changing to product model 100, and the angle of the first elastic inflatable component 539 needs to be adjusted accordingly, the second drive assembly 534 drives the moving block 533 to slide along the first strip hole 501. This causes the inner wall of the second strip hole 503 in the moving block 533 to rub against the first cylinder 535, pushing the first cylinder 535 to move. The first cylinder 535 then drives the rotating plate 531 to rotate around the second linear bearing 522. When the rotating plate 531 rotates, it causes the second cylinder to slide along the arc hole 502, thus adjusting the first cylinder 537, the first connecting frame 538, and the first elastic inflatable component 539 to the appropriate angle. During the rotation of the rotating plate 531, the turntable 532 and the second limit head 536 rotate synchronously.

[0054] In the above design, the structural design and specific implementation of the first inflation component 53 and the second support 51 can adjust the inflation angle for different models of products 100, thereby adapting to the inflation requirements of different products 100.

[0055] Specifically: such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the second inflation assembly 54 includes a second base 541 mounted on the frame 1, a second cylinder 542 mounted on the second base 541, a second connecting frame 543 mounted on the output end of the second cylinder 542, and a second elastic inflation member 544 mounted on the second connecting frame 543. The second elastic inflation member 544 has the same structure as the first elastic inflation member 539. The second elastic inflation member 544 includes a second linear bearing 5441 horizontally mounted on the connecting frame, a second column 5442 sleeved on the second linear bearing 5441, a mounting frame 5443 and a limiting plate 5444 respectively mounted at both ends of the second column 5442, an air nozzle 5445 mounted on the mounting frame 5443, and a second spring 5446 sleeved on the second column 5442. The two ends of the second spring 5446 abut against the mounting frame 5443 and the second connecting frame 543 respectively.

[0056] When the second inflation assembly 54 is inflating, helium flows in from the lower air port and flows out from the upper air port. First, the second cylinder 542 drives the second connecting frame 543 to move the second elastic inflation component 544 towards the product 100. During the movement of the second elastic inflation component 544, after the air nozzle 5445 contacts the lower air port of the product 100, the second column 5442 moves away from the product 100 relative to the second linear bearing 5441, causing the second spring 5446 to compress until the second cylinder 542 stops moving. At this time, the air nozzle 5445 is fully connected with the lower air port of the product 100.

[0057] In the above design, the structural design and specific implementation of the second inflation component 54 can effectively achieve docking with the air port of the product 100. The structural design and specific implementation of the second elastic inflation component 544 and the first elastic inflation component 539 facilitate the use of the second spring 5446 for cushioning when docking with the product 100.

[0058] The second embodiment provided in this application is a method for closing and filling an air compressor housing with helium. The method uses the aforementioned air compressor housing closing and helium filling device and includes the following steps: S1, the conveyor line 2 moves the conveyor fixture 3 to the corresponding position of the closing mechanism 4; S2, the closing mechanism 4 closes the housing screws; S3, the conveyor line 2 moves the conveyor fixture 3 to the corresponding position of the helium filling mechanism 5; S4, the helium filling mechanism 5 fills the housing with helium.

[0059] The above design effectively enables the tightening of bolts on the air compressor housing and the filling of the housing with helium after tightening. Helium is used to remove moisture and oxygen from the housing, ensuring that the inside of the housing is dry.

[0060] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air compressor housing closing and helium filling device, comprising a frame (1), a conveyor line (2) arranged along the X-axis direction on the frame (1), and a plurality of fixtures (3) conveyed along the conveyor line (2), characterized in that: It also includes a closing mechanism (4) and a helium filling mechanism (5) arranged sequentially on the frame (1) along the X-axis direction; The helium filling mechanism (5) includes a second support (51) on the frame (1), a second lifting assembly on the frame (1) for lifting the fixture (3), a pressing assembly (52) on the second support (51), a first inflation assembly (53) on the second support (51), and a second inflation assembly (54) on the frame (1). The pressing assembly (52) includes a third support (521) mounted on the second support (51), a second linear bearing (522) mounted on the second support (51), a second shaft (523) sleeved on the second linear bearing (522), a third cylinder (524) mounted on the third support (521) for driving the third shaft to rise and fall, and a second pressure head (525) mounted at the lower end of the second shaft (523). The second support (51) is provided with an arc-shaped hole (502) and a first strip-shaped hole (501) extending along the X direction. The first inflation assembly (53) includes a rotating plate (531) rotatably mounted on a second linear bearing (522) at one end, a turntable (532) rotatably mounted on the second linear bearing (522) and bolted to the upper end face of the second support (51) and the rotating plate (531), a moving block (533) slidably connected to the first strip-shaped hole (501) and fixedly connected to the upper end face of the rotating plate (531), a second drive assembly (534) mounted on the second support (51) for driving the moving block (533) to slide along the first strip-shaped hole (501), and a first cylinder (53) mounted on the rotating plate (531). 5) and the second cylinder, the second limiting head (536) set at the upper end of the second cylinder, the first cylinder (537) set at the lower end of the rotating plate (531), the first connecting frame (538) set at the output end of the first cylinder (537), and the first elastic inflation component (539) set on the first connecting frame (538); the second cylinder is slidably connected to the arc hole (502), the lower end face of the second limiting head (536) abuts against the second support (51), the moving block (533) is provided with the second strip hole (503) extending along the Y-axis direction, the first cylinder (535) is slidably connected to the second strip hole (503), and the first strip hole (501) is located between the second linear bearing (522) and the arc hole (502).

2. The air compressor housing closing and helium filling device according to claim 1, characterized in that: The closing mechanism (4) includes a first support (41) on the frame (1), a first lifting component on the frame (1) for lifting the jig (3), a first linear guide rail (42) vertically on the first support (41), a lifting frame (43) slidably on the first linear guide rail (42), a first drive component (44) on the first support (41) for driving the lifting frame (43) to lift, a plurality of screw fastening machines (45) on the lifting frame (43), and a central pressing component (46) on the lifting frame (43).

3. The air compressor housing closing and helium filling device according to claim 2, characterized in that: The lifting frame (43) includes a first vertical plate (431) slidably connected to a first linear guide rail (42), a lower horizontal plate (432) disposed at the lower end of the first vertical plate (431), an upper horizontal plate (433) disposed at the upper end of the first vertical plate (431), a support column (434) connecting the upper horizontal plate (433) and the lower horizontal plate (432), a moving plate (435), and a locking strip (436) disposed on the lower horizontal plate (432). The locking strip (436) and the lower horizontal plate (432) form a locking groove, and the moving plate (435) is bolted in the locking groove.

4. The air compressor housing closing and helium filling device according to claim 3, characterized in that: The movable plate (435) is provided with a vertical through hole. The central pressing component (46) includes a connecting block (461) provided on the upper end face of the movable plate (435), a first linear bearing (462) provided on the connecting block (461), a lifting shaft (463) sleeved on the first linear bearing (462), a limiting end (464) provided on the upper end of the lifting shaft (463), a pressing block (465) provided on the lower end of the lifting shaft (463), and a first spring (466) sleeved on the lifting shaft (463). The two ends of the first spring (466) abut against the upper end face of the pressing head and the lower end face of the first linear bearing (462), respectively.

5. The air compressor housing closing and helium filling device according to claim 2, characterized in that: The screw fastening machine (45) includes several mounting blocks (451) disposed on the lower end face of the moving plate (435), several sleeves (452) respectively rotatably disposed on the mounting blocks (451), several motors (453) disposed on the upper horizontal plate (433), and several couplings (454), each of the couplings (454) connecting the upper end of a sleeve (452) to the lower end of the motor (453) shaft.

6. The air compressor housing closing and helium filling device according to claim 1, characterized in that: The second inflation assembly (54) includes a second base (541) mounted on the frame (1), a second cylinder (542) mounted on the second base (541), a second connecting frame (543) mounted on the output end of the second cylinder (542), and a second elastic inflation member (544) mounted on the second connecting frame (543). The second elastic inflation member (544) has the same structure as the first elastic inflation member (539). The second elastic inflation member (544) includes a horizontally mounted connecting frame (543). The second linear bearing (5441) on the connecting frame, the second column (5442) sleeved on the second linear bearing (5441), the mounting bracket (5443) and the limiting plate (5444) respectively set at both ends of the second column (5442), the air nozzle (5445) set on the mounting bracket (5443), and the second spring (5446) sleeved on the second column (5442), wherein the two ends of the second spring (5446) abut against the mounting bracket (5443) and the second connecting bracket (543) respectively.

7. A method for closing and filling an air compressor housing with helium, using the air compressor housing closing and helium filling device according to any one of claims 1 to 6, characterized in that: The process includes the following steps: S1, the conveyor line (2) and the conveyor fixture (3) move to the corresponding position of the closing mechanism (4); S2, the closing mechanism (4) closes the screws on the outer shell; S3, the conveyor line (2) and the conveyor fixture (3) move to the corresponding position of the helium filling mechanism (5); S4, the helium filling mechanism (5) fills the outer shell with helium.

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