Intermediate assembly device and assembly method for air compressor

Abstract

This invention discloses an intermediate assembly device and method for an air compressor, comprising a frame, a rotor assembly feeding mechanism and a bearing housing assembly feeding mechanism, a turntable, an indexer, several carrier assemblies, a first clamping mechanism mounted on the frame, a second clamping and transferring mechanism mounted on the frame, a transfer mechanism mounted on the frame, an airtightness detection mechanism mounted on the frame, and a receiving mechanism. The rotor assembly feeding mechanism provides rotor assemblies to the carrier assemblies, the bearing housing feeding mechanism provides bearing housing assemblies to the carrier assemblies, the first clamping mechanism clamps the eccentric shaft of the rotor assembly to the rotor, and the second clamping and transferring mechanism transfers the bearing housing assembly into the rotor assembly and clamps it. Advantages: It enables the automatic assembly of the rotor assembly and the subsequent automatic assembly of the rotor assembly and bearing housing assembly. The entire device achieves automatic assembly, ensuring assembly efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of air compressors, specifically to an intermediate assembly device and assembly method for an air compressor. Background Technology

[0002] A novel intermediate component for an air compressor includes a rotor assembly and a bearing housing assembly. The rotor assembly comprises a rotor and an eccentric shaft on the rotor, while the bearing housing assembly includes pre-assembled bearing housings, shaft seats, oil seals, and other components. The eccentric shaft and rotor require press-fitting to assemble the rotor assembly, which is then assembled with the bearing housing assembly. Existing assembly mechanisms cannot simultaneously assemble both the rotor assembly and the rotor-bearing housing assembly.

[0003] Therefore, it is necessary to provide an intermediate assembly device and assembly method for an air compressor. Summary of the Invention

[0004] The present invention provides an intermediate assembly device and assembly method for an air compressor, which effectively solves the problem that existing devices cannot assemble the intermediate involved in this application.

[0005] The technical solution adopted in this invention is:

[0006] An intermediate assembly device for an air compressor includes a frame, a rotor assembly feeding mechanism, and a bearing housing assembly feeding mechanism. It also includes a turntable, an indexing device mounted on the frame for driving the turntable's rotation, several carrier assemblies circumferentially mounted on the turntable, a first clamping mechanism mounted on the frame, a second clamping and transferring mechanism mounted on the frame, a transfer mechanism mounted on the frame, an airtightness detection mechanism mounted on the frame, and a receiving mechanism. The rotor assembly feeding mechanism provides rotor assemblies to the carrier assemblies, the bearing housing feeding mechanism provides bearing housing assemblies to the carrier assemblies, the first clamping mechanism clamps the eccentric shaft of the rotor assembly to the rotor, and the second clamping and transferring mechanism transfers the bearing housing assembly into the rotor assembly and clamps it.

[0007] Furthermore, the carrier assembly includes a first fixture, a second fixture, and a first gripper cylinder mounted on the frame. The first fixture includes a first plate A fixedly mounted on the frame, a first linear bearing A mounted on the first plate A, a first support seat mounted on the first linear bearing A, a first plate B fixedly connected to the lower end of the first support seat, several first linear bearings B mounted on the first plate A, a connecting shaft mounted on the first linear bearings B and fixedly connected to the first plate B, a first tension spring B mounted on the connecting shaft, and a slidable mechanism with the first support seat. The system includes a first lifting column, a first spring A fitted on the first lifting column, a first support seat with a first support groove and a first through hole slidably connected to the first lifting column and communicating with the lower end of the first support groove, the first lifting column including a first rod, an upper end set at the upper end of the first rod and a lower end set at the lower end of the first rod, the first spring A fitted on the first rod, and the two ends of the first spring A abutting against the upper end and the first support seat respectively; the first fixture is used to support the rotor assembly, and the second fixture is used to support the bearing seat assembly.

[0008] Furthermore, the No. 1 pressing mechanism includes a No. 1 support mounted on the frame, a No. 1 electric cylinder mounted vertically on the No. 1 support, a No. 1 pressure head mounted at the output end of the No. 1 electric cylinder, and a limiting block mounted on the No. 1 support for limiting the lower end of the No. 1 lifting column.

[0009] Furthermore, the second pressing and transferring mechanism includes a second support mounted on the frame, a second electric cylinder mounted vertically on the second support, a second pressure head mounted at the output end of the second electric cylinder, a second linear guide rail mounted horizontally on the second support, a second slide mounted slidably on the second linear guide rail, a second cylinder A mounted on the second support for driving the second slide to slide along the second linear guide rail, a second cylinder B mounted vertically on the second slide, a second connecting frame mounted at the output end of the second cylinder B, and a second gripper mounted on the second connecting frame.

[0010] Furthermore: the second cylinder A drives the second slide block to slide back and forth along the second linear guide rail between the first fixture and the second fixture; the second cylinder B drives the second connecting frame to move the second gripper up and down; the second gripper picks up and puts in the bearing seat assembly; and the second electric cylinder drives the second pressure head to press down on the bearing seat assembly located on the rotor assembly.

[0011] Furthermore, the rotor assembly feeding mechanism includes a No. 4 feeding rack on one side of the frame and a No. 4 transfer assembly on the frame. The No. 4 transfer assembly includes a No. 4 support on the frame, a No. 4 linear guide rail horizontally mounted on the No. 4 support, a No. 4 slide block slidably mounted on the No. 4 linear guide rail, a No. 4 linear module mounted on the No. 4 support for driving the No. 4 slide block to slide along the No. 4 linear guide rail, a No. 4 cylinder vertically mounted on the No. 4 slide block, a No. 4 frame mounted at the output end of the No. 4 cylinder, and a No. 4 gripper mounted on the No. 4 frame.

[0012] Furthermore, the bearing housing assembly feeding mechanism includes a No. 5 feeding rack located on one side of the frame and a No. 5 robotic arm located on one side of the frame.

[0013] Furthermore, the number of airtightness testing mechanisms is at least two, and each airtightness testing mechanism includes a No. 6 seat mounted on the frame, a No. 6 linear guide rail A horizontally mounted on the No. 6 seat, a material support seat slidably mounted on the No. 6 linear guide rail A, a No. 6 lead screw mounted on the No. 6 seat for driving the material support seat to slide along the No. 6 linear guide rail A, a No. 6 support mounted on the No. 6 seat, a No. 6 lifting frame mounted on the No. 6 support, a No. 6 cylinder mounted on the No. 6 support for driving the No. 6 lifting frame to rise and fall, an air connector mounted at the output end of the No. 6 cylinder, an air pressure sensor mounted on the air connector, and an elastic pressure frame mounted below the No. 6 lifting frame.

[0014] Furthermore, the transfer mechanism includes a No. 7 robotic arm mounted on the frame and a No. 7 gripper mounted on the No. 7 robotic arm.

[0015] An intermediate assembly method for an air compressor, using the aforementioned intermediate assembly device, includes the following steps: S1, placing the rotor assembly onto the carrier assembly via a rotor assembly feeding mechanism, and placing the bearing housing assembly onto the carrier assembly via a bearing housing assembly feeding mechanism; S2, pressing the eccentric shaft of the rotor assembly against the rotor via a first pressing mechanism; S3, transferring the bearing housing assembly from the carrier assembly to above the rotor assembly via a second pressing and transferring mechanism, thereby assembling the rotor assembly and the bearing housing assembly; S4, transferring the assembled product to an airtightness testing mechanism for airtightness testing; S5, transferring the product after airtightness testing to a receiving mechanism via a transfer mechanism.

[0016] Beneficial effects of the invention:

[0017] It can realize the automatic assembly of rotor components and the automatic assembly of the assembled rotor components with bearing housing components. The entire device can achieve automatic assembly, ensuring assembly efficiency and assembly accuracy.

[0018] The structure of the No. 1 fixture and the cooperation of the No. 1 clamping assembly enable the No. 1 lifting column to limit the assembly depth of the eccentric shaft when clamping it, ensuring the assembly accuracy of the eccentric shaft and the rotor, and preventing the No. 1 pressure head from impacting the rotor after the eccentric shaft is fully inserted into it.

[0019] The No. 2 pressing and transfer mechanism can transfer the bearing housing assembly on the No. 2 fixture to the rotor assembly on the No. 1 fixture, and can also press-fit the transferred bearing housing assembly to assemble the rotor assembly and the bearing housing assembly.

[0020] By setting up two airtightness testing mechanisms, it is possible to conduct airtightness tests on two products separately. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of an intermediate assembly apparatus for an air compressor provided in an embodiment of this application.

[0022] Figure 2 A schematic diagram of the carrier assembly of an intermediate assembly apparatus for an air compressor provided in an embodiment of this application.

[0023] Figure 3 A cross-sectional view of the first fixture of the intermediate assembly apparatus for an air compressor provided in an embodiment of this application.

[0024] Figure 4 A schematic diagram of the first clamping mechanism of the intermediate assembly device for an air compressor provided in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of the second compression transfer mechanism of the intermediate assembly device for an air compressor provided in an embodiment of this application.

[0026] Figure 6 A schematic diagram of the air tightness detection mechanism of the intermediate assembly apparatus for an air compressor provided in an embodiment of this application.

[0027] Figure 7 A schematic diagram of the fourth transfer component of the intermediate assembly apparatus for an air compressor provided in an embodiment of this application.

[0028] The markings in the diagram are as follows: 1. Frame; 2. Rotor assembly feeding mechanism; 3. Bearing seat assembly feeding mechanism; 4. Turntable; 5. Carrier assembly; 6. No. 1 clamping mechanism; 7. No. 2 clamping and transfer mechanism; 8. Transfer mechanism; 9. Air tightness detection mechanism; 10. Receiving mechanism; 51. No. 1 fixture; 52. No. 2 fixture; 53. No. 1 gripper cylinder; 511. No. 1 plate A; 512. No. 1 linear bearing A; 513. No. 1 support seat; 514. No. 1 plate B; 515. Connecting shaft; 516. No. 1 tension spring B; 517. No. 1 lifting column; 518. No. 1 spring A; 171. No. 1 rod; 172. Upper end; 173. Lower end; 61. No. 1 support; 62. No. 1 electric cylinder; 63. No. 1 pressure head; 64. No. 1 limit block; 71. No. 2 support; 72. No. 2 electric cylinder 73. Cylinder No. 2; 74. Linear Guide No. 2; 75. Slide No. 2; 76. Cylinder No. 2 A; 77. Cylinder No. 2 B; 78. Gripper No. 2; 79. Lifting Assembly; 21. Unloading Rack No. 4; 22. Transfer Assembly No. 4; 221. Support No. 4; 222. Linear Guide No. 4; 223. Slide No. 4; 224. Linear Module No. 4; 225. Cylinder No. 4; 22 6. No. 4 gripper; 31. No. 5 unloading rack; 32. No. 5 robotic arm; 91. No. 6 base; 92. No. 6 linear guide rail A; 93. Material support base; 94. No. 6 lead screw; 95. No. 6 support; 96. No. 6 lifting frame; 97. No. 6 cylinder; 98. Air connector; 99. Elastic pressure frame; 100. Rotor assembly; 101. Rotor; 102. Eccentric shaft; 200. Bearing housing assembly. Detailed Implementation

[0029] 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.

[0030] like Figure 1 As shown, the first embodiment provided in this application is an intermediate assembly device for an air compressor, including a frame 1, a rotor assembly feeding mechanism 2, and a bearing housing assembly feeding mechanism 3. It also includes a turntable 4, an indexer mounted on the frame 1 for driving the turntable 4 to rotate, several carrier assemblies 5 circumferentially mounted on the turntable 4, a first pressing mechanism 6 mounted on the frame 1, a second pressing transfer mechanism 7 mounted on the frame 1, a transfer mechanism 8 mounted on the frame 1, an airtightness detection mechanism 9 mounted on the frame 1, and a receiving mechanism 10. Specifically, the rotor assembly feeding mechanism 2 provides rotor assemblies 100 to the carrier assemblies 5, the bearing housing assembly feeding mechanism 3 provides bearing housing assemblies 200 to the carrier assemblies 5, the first pressing mechanism 6 presses the eccentric shaft 102 of the rotor assembly 100 against the rotor 101, and the second pressing transfer mechanism 7 transfers the bearing housing assembly 200 into the rotor assembly 100 and presses it.

[0031] In actual use, the rotor assembly 100 is placed on the carrier assembly 5 via the rotor assembly feeding mechanism 2, and the bearing seat assembly 200 is placed on the carrier assembly 5 via the bearing seat assembly 200. Then, the indexer drives the turntable 4 to rotate, causing the turntable 4 to rotate the carrier assembly 5 to the position corresponding to the first pressing mechanism 6. Then, the first pressing mechanism 6 presses the eccentric shaft 102 of the rotor assembly 100 against the rotor 101. Subsequently, the turntable 4 rotates to the position corresponding to the second pressing and transfer mechanism 7. The second pressing and transfer mechanism 7 transfers the bearing seat assembly 200 on the carrier assembly 5 to above the rotor assembly 100 and presses it, thus assembling the rotor assembly 100 and the bearing seat assembly 200. Then, the assembled product is transferred to the airtightness testing mechanism 9 for airtightness testing via the transfer mechanism 8, and then the airtightness tested product is transferred to the receiving mechanism 10 via the transfer mechanism 8.

[0032] In the above design, the entire device can realize the automatic assembly of intermediates, ensuring assembly efficiency and assembly accuracy.

[0033] Specifically: such as Figure 2 and Figure 3 As shown, the carrier assembly 5 includes a first fixture 51, a second fixture 52, and a first gripper cylinder 53 mounted on the frame 1. The first fixture 51 includes a first plate A511 fixedly mounted on the frame 1, a first linear bearing A512 mounted on the first plate A511, a first support seat 513 sleeved on the first linear bearing A512, a first plate B514 fixedly connected to the lower end of the first support seat 513, several first linear bearings B mounted on the first plate A511, a connecting shaft 515 sleeved on the first linear bearings B and fixedly connected to the first plate B514, a first tension spring B516 sleeved on the connecting shaft 515, and a first gripper cylinder 53 slidably connected to the first support seat 513. The system includes a lifting column 517, a spring A518 sleeved on the lifting column 517, a support seat 513 having a support groove and a through hole slidably connected to the lifting column 517 and communicating with the lower end of the support groove, a rod 171, an upper end head 172 at the upper end of the rod 171 and a lower end head 173 at the lower end of the rod 171, a spring A518 sleeved on the rod 171, and the two ends of the spring A518 abutting against the upper end head 172 and the support seat 513 respectively; a fixture 51 is used to support the rotor assembly 100, and a fixture 52 is used to support the bearing seat assembly 200.

[0034] It should be noted that the upper end of the connecting shaft 515 is a cam structure. The diameter of the cam structure is larger than the inner diameter of the linear bearing, which prevents the cam structure from sliding along the first linear bearing A512.

[0035] In actual use, the rotor assembly 100 is placed in the first fixture 51, and the bearing seat is placed in the second fixture 52. After the rotor assembly 100 is placed in the first fixture 51, the eccentric shaft 102 on the rotor 101 is clamped by the first gripper cylinder 53 to ensure the stability of the eccentric shaft 102. When the first clamping mechanism 6 clamps the eccentric shaft 102, the first support seat 513 slides downward along the first linear bearing A512, causing the connecting shaft 515 to move downward along the first linear bearing B, and the first tension spring B516 to stretch and deform. After being pressed down by the first clamping mechanism 6, the eccentric shaft 102 presses down on the upper end 172 of the first lifting column 517, causing the first lifting column 517 to slide downward along the first through hole and compress the first spring A518 until the eccentric shaft 102 is assembled on the rotor 101. After the first clamping mechanism 6 completes the clamping and lifting of the eccentric shaft 102, the first tension spring B516 drives the first plate B514 to reset. At this time, the first spring A518 remains in a compressed state, and the rotor assembly 100 is assembled. When the second pressing and transfer mechanism 7 transfers the bearing housing assembly 200 onto the rotor assembly 100 to press the bearing housing assembly 200, after the second pressing and transfer mechanism 7 transfers the bearing housing assembly 200 from the second fixture 52 to the assembled rotor assembly 100 on the first fixture 51, the second pressing and transfer mechanism 7 applies pressure to the bearing housing assembly 200, causing the first support seat 513 to drive the first plate B514 to move down, causing the first plate B514 to move down and causing the connecting shaft 515 to move down, causing the first tension spring B516 to stretch until the upper end of the connecting shaft 515 abuts against the first linear bearing A512, the first support seat 513 stops moving until the second pressing and transfer mechanism 7 presses the bearing housing assembly 200 onto the rotor assembly 100.

[0036] In the above design, the structural design and specific implementation of the carrier component 5 can ensure that when pressing the eccentric shaft 102 and the rotor 101, the depth of the eccentric shaft 102 into the rotor 101 is limited by the first lifting column 517, and the first spring A518 can be used to buffer the eccentric shaft 102 during the pressing process.

[0037] Specifically: such as Figure 4 As shown, the No. 1 pressing mechanism 6 includes a No. 1 support 61 mounted on the frame 1, a No. 1 electric cylinder 62 mounted vertically on the No. 1 support 61, a No. 1 pressure head 63 mounted on the output end of the No. 1 electric cylinder 62, and a limiting block mounted on the No. 1 support 61 for limiting the lower end of the No. 1 lifting column 517.

[0038] In actual use, when the rotor assembly 100 on the first fixture 51 rotates with the turntable 4 to the corresponding position of the first clamping mechanism 6, the first electric cylinder 62 drives the first pressure head 63 to press down to squeeze the upper end of the eccentric shaft 102, so that the eccentric shaft 102 presses down on the first lifting column 517, and after the first lifting column 517 moves down, the lower end 173 of the first lifting column 517 abuts against the limit block. At this time, the assembly of the eccentric shaft 102 and the rotor 101 is completed.

[0039] In the above design, the structural design and specific implementation of the No. 1 clamping mechanism 6 can realize the assembly of the rotor 101 and the eccentric shaft 102, and at the same time can limit the assembly depth of the eccentric shaft 102 inserted into the rotor 101.

[0040] Specifically: such as Figure 5 As shown, the second pressing and transferring mechanism 7 includes a second support 71 mounted on the frame 1, a second electric cylinder 72 vertically mounted on the second support 71, a second pressure head 73 mounted at the output end of the second electric cylinder 72, a second linear guide rail 74 horizontally mounted on the second support 71, a second slide block 75 slidably mounted on the second linear guide rail 74, a second cylinder A76 mounted on the second support 71 for driving the second slide block 75 to slide along the second linear guide rail 74, a second cylinder B77 vertically mounted on the second slide block 75, a second connecting frame mounted at the output end of the second cylinder B77, a second gripper 78 mounted on the second connecting frame, and a lifting assembly 79 mounted on the second support 71 for supporting the first fixture 51. The lifting assembly 79 includes a lifting head sliding on the second base and a second cylinder C mounted on the second support 71 for driving the lifting head to rise and fall.

[0041] In actual use, when the carrier assembly 5 rotates with the turntable 4 to below the second pressing and transferring mechanism 7, the lifting assembly 79 supports the first fixture 51: the second cylinder C drives the lifting head to rise to support the lower end of the first fixture 51. At this time, cylinder A76 first drives slide 75 to move cylinder B77 so that gripper 78 is above fixture 52. Then, cylinder B77 drives gripper 78 to move down and grab the bearing housing assembly 200 in fixture 52. Then, cylinder B77 resets and cylinder A76 drives slide 75 to slide along linear guide 74 to above fixture 51. Then, cylinder B77 drives gripper 78 to move down so that gripper 78 places bearing housing assembly 200 on rotor assembly 100. Then, cylinder A76 drives slide 75 to move cylinder B77 so that gripper 78 is above fixture 52. Subsequently, the second electric cylinder 72 drives the second pressure head 73 to move downward, so that the second pressure head 73 continuously presses down on the bearing housing assembly 200, so that the bearing housing assembly 200 and the rotor assembly 100 are assembled.

[0042] In the above design, the structural design and specific implementation of the second pressing and transfer mechanism 7 can transfer the bearing housing assembly 200 from the second fixture 52 to the rotor assembly 100 and realize the pressing of the rotor assembly 100 and the bearing housing assembly 200.

[0043] Specifically: the second cylinder A76 drives the second slide 75 to slide back and forth between the first fixture 51 and the second fixture 52 along the second linear guide rail 74; the second cylinder B77 drives the second connecting frame to move the second gripper 78 up and down; the second gripper 78 picks up and puts in the bearing seat assembly 200; and the second electric cylinder 72 drives the second pressure head 73 to press down on the bearing seat assembly 200 located on the rotor assembly 100.

[0044] Specifically: such as Figure 1 and Figure 7 As shown, the rotor assembly feeding mechanism 2 includes a No. 4 feeding rack 21 disposed on one side of the frame 1 and a No. 4 transfer assembly 22 disposed on the frame 1. The No. 4 transfer assembly 22 includes a No. 4 support 221 disposed on the frame 1, a No. 4 linear guide rail 222 disposed horizontally on the No. 4 support 221, a No. 4 slide block 223 slidably disposed on the No. 4 linear guide rail 222, a No. 4 linear module 224 disposed on the No. 4 support 221 for driving the No. 4 slide block 223 to slide along the No. 4 linear guide rail 222, a No. 4 cylinder 225 disposed vertically on the No. 4 slide block 223, a No. 4 frame disposed at the output end of the No. 4 cylinder 225, and a No. 4 gripper 226 disposed on the No. 4 frame.

[0045] In actual use, the fourth linear module 224 drives the fourth slide 223 to slide along the fourth linear guide rail 222 to the top of the fourth feeding rack 21. Then, the fourth cylinder 225 drives the fourth gripper 226 to move down and clamp the rotor 101 of the rotor assembly 100. Then, the fourth linear module 224 drives the fourth slide 223 to move into the carrier assembly 5. Then, the fourth cylinder 225 drives the fourth gripper 226 to move down and place the rotor assembly 100 in the carrier assembly 5.

[0046] In the above design, the structural design and specific implementation of the rotor assembly feeding mechanism 2 can effectively realize the rapid feeding of the rotor assembly 100.

[0047] Specifically: such as Figure 1 As shown, the bearing housing assembly feeding mechanism 3 includes a No. 5 feeding rack 31 disposed on one side of the frame 1 and a No. 5 robotic arm 32 disposed on one side of the frame 1.

[0048] In actual use, the No. 5 robotic arm 32 picks up the bearing seat assembly 200 in the No. 5 feeding rack 31 and transfers it to the carrier assembly 5.

[0049] In the above design, the bearing housing assembly feeding mechanism 3 can quickly feed the bearing housing assembly 200.

[0050] Specifically: such as Figure 1 and Figure 6 As shown, the number of airtightness testing mechanisms 9 is at least two. Each airtightness testing mechanism 9 includes a No. 6 seat 91 mounted on the frame 1, a No. 6 linear guide rail A92 horizontally mounted on the No. 6 seat 91, a material support seat 93 slidably mounted on the No. 6 linear guide rail A92, a No. 6 lead screw 94 mounted on the No. 6 seat 91 for driving the material support seat 93 to slide along the No. 6 linear guide rail A92, a No. 6 support 95 mounted on the No. 6 seat 91, a No. 6 lifting frame 96 mounted on the No. 6 support 95, a No. 6 cylinder 97 mounted on the No. 6 support 95 for driving the No. 6 lifting frame 96 to rise and fall, an air connector 98 mounted at the output end of the No. 6 cylinder 97, an air pressure sensor mounted on the air connector 98, and an elastic pressure frame 99 mounted below the No. 6 lifting frame 96.

[0051] It should be noted that the bearing housing assembly 200 is located above the rotor assembly 100. After the bearing housing assembly 200 and the rotor assembly 100 are assembled, the lower end of the bearing housing is sealed, and the shaft hole at the upper end of the bearing housing can be sealed with the air connector 98.

[0052] In actual use, after the product is pressed, the transfer mechanism 8 transfers the product from the carrier assembly 5 to the support seat 93. Then, the support seat 93 is driven by the sixth lead screw 94 to slide along the sixth linear guide rail A92 to below the air connector 98. Subsequently, the sixth cylinder 97 drives the sixth lifting frame 96 to move down, so that the elastic pressing component presses against the bearing seat assembly 200 above to achieve the positioning of the bearing seat assembly 200. The air connector 98 moves down to press against the shaft hole. An external air source connected to the air connector 98 supplies air to the air connector 98, so that the gas flows into the cavity formed by the air connector 98 and the product being pressed together. The air pressure value is monitored by the air pressure sensor. If the air pressure value is qualified, it means that the product is airtight. Otherwise, it is unqualified.

[0053] In the above design, the two airtightness testing mechanisms 9 can perform airtightness testing on two products respectively, ensuring that the cycle time of airtightness testing is consistent with the cycle time of product assembly. By setting up the elastic pressure frame 99, elastic buffering and positioning of the bearing housing assembly 200 can be achieved.

[0054] Specifically: the transfer mechanism 8 includes a seventh robotic arm mounted on the frame 1 and a seventh gripper mounted on the seventh robotic arm.

[0055] In actual use, the No. 7 robotic arm drives the No. 7 gripper to transfer the product.

[0056] In the above design, the structural design and specific implementation of the transfer mechanism 8 can effectively realize the transfer of products.

[0057] The second embodiment provided in this application is an intermediate assembly method for an air compressor, using the aforementioned intermediate assembly device for an air compressor, including the following steps: S1, placing the rotor assembly 100 on the carrier assembly 5 via the rotor assembly feeding mechanism 2, and placing the bearing housing assembly 200 on the carrier assembly 5 via the bearing housing assembly feeding mechanism 3; S2, pressing the eccentric shaft 102 of the rotor assembly 100 against the rotor 101 via the first pressing mechanism 6; S3, transferring the bearing housing assembly 200 on the carrier assembly 5 to above the rotor assembly 100 via the second pressing and transferring mechanism 7, thereby assembling the rotor assembly 100 and the bearing housing assembly 200; S4, transferring the assembled product to the airtightness testing mechanism 9 for airtightness testing via the transfer mechanism 8; S5, transferring the product after airtightness testing via the transfer mechanism 8 to the receiving mechanism 10.

[0058] The above design enables rapid assembly of intermediate components, improving assembly efficiency.

[0059] 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 intermediate assembly device for an air compressor, comprising a frame (1), a rotor assembly feeding mechanism (2), and a bearing housing assembly feeding mechanism (3), characterized in that: It also includes a turntable (4), an indexer mounted on the frame (1) for driving the turntable (4) to rotate, several carrier assemblies (5) circumferentially mounted on the turntable (4), a first clamping mechanism (6) mounted on the frame (1), a second clamping transfer mechanism (7) mounted on the frame (1), a transfer mechanism (8) mounted on the frame (1), an airtightness detection mechanism (9) mounted on the frame (1), and a receiving mechanism (10); wherein, the rotor assembly feeding mechanism (2) is used to provide the rotor assembly (100) to the carrier assembly (5), the bearing seat assembly feeding mechanism (3) is used to provide the bearing seat assembly (200) to the carrier assembly (5), the first clamping mechanism (6) is used to clamp the eccentric shaft (102) of the rotor assembly (100) to the rotor (101), and the second clamping transfer mechanism (7) is used to transfer the bearing seat assembly (200) into the rotor assembly (100) and clamp it; The carrier assembly (5) includes a first fixture (51), a second fixture (52), and a first gripper cylinder (53) mounted on the frame (1). The first fixture (51) includes a first plate A (511) fixedly mounted on the frame (1), a first linear bearing A (512) mounted on the first plate A (511), a first support seat (513) sleeved on the first linear bearing A (512), a first plate B (514) fixedly connected to the lower end of the first support seat (513), several first linear bearings B mounted on the first plate A (511), a connecting shaft (515) sleeved on the first linear bearings B and fixedly connected to the first plate B (514), a first tension spring B (516) sleeved on the connecting shaft (515), and a first lifting mechanism slidably connected to the first support seat (513). The column (517) and the spring A (518) sleeved on the first lifting column (517) are provided with a first support groove and a first through hole that is slidably connected to the first lifting column (517) and communicates with the lower end of the first support groove. The first lifting column (517) includes a first rod (171), an upper end head (172) set on the upper end of the first rod (171) and a lower end head (173) set on the lower end of the first rod (171). The spring A (518) is sleeved on the first rod (171), and the two ends of the spring A (518) abut against the upper end head (172) and the first support seat (513) respectively. The first fixture (51) is used to support the rotor assembly (100), and the second fixture (52) is used to support the bearing seat assembly (200).

2. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The first pressing mechanism (6) includes a first support (61) mounted on the frame (1), a first electric cylinder (62) mounted vertically on the first support (61), a first pressure head (63) mounted at the output end of the first electric cylinder (62), and a limiting block mounted on the first support (61) for limiting the lower end of the first lifting column (517).

3. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The second pressing and transferring mechanism (7) includes a second support (71) mounted on the frame (1), a second electric cylinder (72) mounted vertically on the second support (71), a second pressure head (73) mounted at the output end of the second electric cylinder (72), a second linear guide rail (74) mounted horizontally on the second support (71), a second slide block (75) slidably mounted on the second linear guide rail (74), a second cylinder A (76) mounted on the second support (71) for driving the second slide block (75) to slide along the second linear guide rail (74), a second cylinder B (77) mounted vertically on the second slide block (75), a second connecting frame mounted at the output end of the second cylinder B (77), and a second gripper (78) mounted on the second connecting frame.

4. The intermediate assembly apparatus for an air compressor according to claim 3, characterized in that: The second cylinder A (76) drives the second slide (75) to slide back and forth between the first fixture (51) and the second fixture (52) along the second linear guide rail (74). The second cylinder B (77) drives the second connecting frame to move the second gripper (78) up and down. The second gripper (78) picks up and puts in the bearing seat assembly (200). The second electric cylinder (72) drives the second pressure head (73) to press down on the bearing seat assembly (200) located on the rotor assembly (100).

5. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The rotor assembly feeding mechanism (2) includes a No. 4 feeding rack (21) set on one side of the frame (1) and a No. 4 transfer assembly (22) set on the frame (1). The No. 4 transfer assembly (22) includes a No. 4 support (221) set on the frame (1), a No. 4 linear guide rail (222) set horizontally on the No. 4 support (221), a No. 4 slide block (223) slidably set on the No. 4 linear guide rail (222), a No. 4 linear module (224) set on the No. 4 support (221) for driving the No. 4 slide block (223) to slide along the No. 4 linear guide rail (222), a No. 4 cylinder (225) set vertically on the No. 4 slide block (223), a No. 4 frame set at the output end of the No. 4 cylinder (225), and a No. 4 gripper (226) set on the No. 4 frame.

6. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The bearing housing assembly feeding mechanism (3) includes a No. 5 feeding rack (31) set on one side of the frame (1) and a No. 5 robotic arm (32) set on one side of the frame (1).

7. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The number of airtightness testing mechanisms (9) is at least two. Each airtightness testing mechanism (9) includes a No. 6 seat (91) set on the frame (1), a No. 6 linear guide rail A (92) set horizontally on the No. 6 seat (91), a material support seat (93) slidably set on the No. 6 linear guide rail A (92), a No. 6 lead screw (94) set on the No. 6 seat (91) for driving the material support seat (93) to slide along the No. 6 linear guide rail A (92), a No. 6 support (95) set on the No. 6 seat (91), a No. 6 lifting frame (96) set on the No. 6 support (95), a No. 6 cylinder (97) set on the No. 6 support (95) for driving the No. 6 lifting frame (96) to rise and fall, an air connector (98) set at the output end of the No. 6 cylinder (97), an air pressure sensor set on the air connector (98), and an elastic pressure frame (99) set below the No. 6 lifting frame (96).

8. The intermediate assembly apparatus for an air compressor according to claim 1, characterized in that: The transfer mechanism (8) includes a No. 7 robotic arm mounted on the frame (1) and a No. 7 gripper mounted on the No. 7 robotic arm.

9. A method for assembling an intermediate component of an air compressor, using the intermediate component assembly apparatus for an air compressor as described in any one of claims 1 to 8, characterized in that: The process includes the following steps: S1, the rotor assembly (100) is placed on the carrier assembly (5) by the rotor assembly loading mechanism (2), and the bearing seat assembly (200) is placed on the carrier assembly (5) by the bearing seat assembly loading mechanism (3); S2, the eccentric shaft (102) of the rotor assembly (100) is pressed against the rotor (101) by the first pressing mechanism (6); S3, the second pressing and transferring mechanism (7) transfers the bearing seat assembly (200) on the carrier assembly (5) to the rotor assembly (100) and presses it, thereby assembling the rotor assembly (100) and the bearing seat assembly (200); S4, the transfer mechanism (8) transfers the assembled product to the airtightness testing mechanism (9) for airtightness testing; S5, the transfer mechanism (8) transfers the airtightness tested product to the receiving mechanism (10).

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