A multi-axis linkage dual-station mounting device

Abstract

The present invention belongs to the technical field of mounting equipment, and discloses a multi-axis linkage double-station mounting equipment, including a mounter, wherein an adsorption component is fixedly installed at the end of the vacuum suction pipe. The adsorption component includes a connecting pipe and a suction nozzle detachably inserted into the connecting pipe. An axially extending second inner cavity is provided in the connecting pipe, and an annular fixing ring is fixedly connected to the inner wall of the second inner cavity. Two second sliding rods are symmetrically and slidably connected in the fixing ring. A second spring is sleeved on the second sliding rod. The end of the second sliding rod is fixedly connected with a second limiting sleeve. The inner end of the second sliding rod extends to the inner side of the fixing ring and is fixedly connected with a clamping block. A limiting surface matched with the clamping groove is arranged on one side of the clamping block facing the suction nozzle. In the device of the present invention, the suction nozzle can be quickly replaced and disassembled, avoiding the complexity of screw installation and reducing the time cost of suction nozzle installation and disassembly.

Description

Technical Field

[0001] The present invention relates to the field of mounting equipment, and more specifically, to a multi-axis linkage double-station mounting equipment. Background Art

[0002] The multi-axis linkage double-station mounting equipment is an automated equipment integrating a high-precision robotic arm, an intelligent vision system and a double workbench, and realizes the precise mounting of complex workpieces through the coordinated movement of multiple axes. Its double-station design supports parallel operations and improves efficiency. In the complex working system of the mounter, the nozzle, as one of its core components, plays a crucial role. It relies on vacuum suction to create a negative pressure environment to reliably suck components.

[0003] In the prior art, some nozzles on the mounter are still installed by means of bolt fixation. Although bolt fixation can improve the firmness of nozzle installation, however, the bolt fixation method also has some limitations. During operation, time-consuming tightening and loosening adjustments are required, and the operation process is relatively complex. At the same time, the bolt fixation method also requires manual operation, so the time cost of installation and disassembly is increased. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, this application proposes a multi-axis linkage double-station mounting equipment, which can quickly replace and disassemble the nozzle, avoids the complexity of screw installation, and reduces the time cost of nozzle installation and disassembly.

[0005] To solve the above technical problems, the present invention proposes the following technical solutions: A multi-axis linkage double-station mounting equipment includes a mounter, and an adsorption component is fixedly installed at the end of its vacuum suction pipe;

[0006] The adsorption component includes a connecting pipe and a nozzle detachably inserted into the connecting pipe. An axially extending second inner cavity is provided in the connecting pipe, and an annular fixing ring is fixedly connected to the inner wall of the second inner cavity;

[0007] Two second sliding rods are symmetrically and slidably connected in the fixing ring. A second spring is sleeved on the second sliding rod. The end of the second sliding rod is fixedly connected with a second limiting sleeve. The inner end of the second sliding rod extends to the inner side of the fixing ring and is fixedly connected with a clamping block. A limiting surface matching the clamping groove is provided on the side of the clamping block facing the nozzle. A first arc surface, a second arc surface and a third arc surface slidably matched with the inner wall of the clamping groove are respectively provided on the top surface, bottom surface and outer side of the clamping block, wherein the limiting surface is perpendicular to the first arc surface and the third arc surface.

[0008] Preferably, one end of the second spring abuts against the clamping block, and the other end of the second spring abuts against the fixing ring.

[0009] Preferably, a first inner cavity is formed in the inner wall of the connecting pipe. A fixing seat is slidably sleeved on the inner wall of the connecting pipe. A through hole is formed in the top of the fixing seat. An installation groove is formed in the bottom of the fixing seat. A sealing ring is fixedly connected to the inner wall of the installation groove. A first sliding rod is fixedly connected to the top of the fixing seat.

[0010] Preferably, a convex ring is formed by protruding the inner wall of the connecting pipe. The end of the first sliding rod penetrates through the convex ring and extends into the first inner cavity. The first sliding rod is slidably connected to the connecting pipe. A first spring is sleeved on the outer wall of the first sliding rod.

[0011] Preferably, a first limiting sleeve is fixedly connected to the outer wall of the first sliding rod. A connecting ring is fixedly connected to the outer wall of the suction nozzle. A pressing groove is formed in the top of the connecting ring. The connecting ring is in pressing contact with the sealing ring through the pressing groove.

[0012] Preferably, one end of the first spring is fixedly connected to the first limiting sleeve, and the other end of the first spring is fixedly connected to the connecting pipe.

[0013] Preferably, a threaded portion is formed in the inner wall of the connecting pipe. A threaded knob is sleeved on the outer wall of the suction nozzle. The threaded knob is threadedly connected to the threaded portion. The top of the threaded knob presses the connecting ring upward.

[0014] Preferably, an installation sleeve is sleeved on the outer wall of the connecting pipe. A first rotating shaft is rotatably connected to the inner wall of the installation sleeve. A second rotating shaft is rotatably connected to the inner wall of the installation sleeve. The end portions of the first rotating shaft and the second rotating shaft are respectively fixedly connected to the connecting pipe.

[0015] Preferably, a gear is fixedly connected to the outer wall of the second rotating shaft. A bracket is fixedly connected to the outer wall of the installation sleeve. A sliding groove is formed in the top of the bracket. A toothed plate is slidably connected to the inner wall of the sliding groove. The toothed plate is engaged with the gear.

[0016] Preferably, a screw rod is rotatably connected to the end of the bracket. A rotating knob is fixedly connected to the end of the screw rod. A connecting block is threadedly connected to the outer wall of the screw rod. The top of the connecting block is fixedly connected to the toothed plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the suction nozzle is axially inserted into the connecting pipe, the suction nozzle generates extrusion on the clamping block. When the clamping block is aligned with the clamping groove, the block is embedded into the clamping groove to complete the installation of the suction nozzle. The operator reversely rotates the threaded knob to release the pressing force on the connecting ring. Subsequently, the suction nozzle is rotated towards the third arc surface side, and the suction nozzle generates outward extrusion on the clamping block. Then, the suction nozzle is pulled outwards, so that the suction nozzle can be quickly replaced and disassembled, avoiding the complexity of threaded installation and reducing the time cost of suction nozzle installation and disassembly.

[0019] 2. During the insertion process, the connecting ring at the top of the nozzle pushes the sealing ring to drive the fixing seat to slide upward along the first sliding rod. At this time, the first spring is compressed to generate a reverse force, thereby improving the sealing performance of the installation.

[0020] 3. The operator rotates the threaded knob to squeeze the connecting ring upward along the threaded part of the connecting pipe, and applies a radial compression force to the sealing ring through the pressure groove, improving the sealing performance between the nozzle and the connecting pipe, and at the same time improving the firmness of the nozzle installation.

[0021] 4. The angle adjustment of the nozzle is realized through the first rotating shaft and the second rotating shaft on the installation sleeve. When double-station switching is required, the operator rotates the rotating knob to drive the screw to rotate, drives the connecting block to move along the sliding groove, and then pushes the toothed plate to engage with the gear for transmission. The gear drives the second rotating shaft to rotate, thereby adjusting the angle of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the partial structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the installation structure of the nozzle of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the connecting pipe of the present invention;

[0027] Figure 5 It is a schematic diagram of the installation structure of the fixing seat of the present invention;

[0028] Figure 6 It is a schematic diagram of the installation structure of the clamping block of the present invention;

[0029] Figure 7 It is a schematic diagram of the structures at the top and bottom of the nozzle of the present invention;

[0030] Figure 8 It is a schematic diagram of the installation structure of the first rotating shaft of the present invention;

[0031] Figure 9 It is a schematic diagram of the installation structure of the toothed plate of the present invention.

[0032] Description of reference numerals in the figure: 1. Mounter; 2. Adsorption component; 3. Connecting pipe; 4. Threaded part; 5. Convex ring; 6. First inner cavity; 7. Second inner cavity; 8. Threaded knob; 9. Sealing ring; 10. Fixed seat; 11. Installation groove; 12. Through hole; 13. First spring; 14. First sliding rod; 15. First limiting sleeve; 16. Fixed ring; 17. Second sliding rod; 18. Second limiting sleeve; 19. Second spring; 20. Block; 21. First arc surface; 22. Second arc surface; 23. Third arc surface; 24. Limiting surface; 25. Nozzle; 26. Connecting ring; 27. Pressing groove; 28. Card slot; 29. Installation sleeve; 30. First rotating shaft; 31. Second rotating shaft; 32. Gear; 33. Bracket; 34. Chute; 35. Rack; 36. Connecting block; 37. Screw; 38. Rotating knob. Detailed implementation mode

[0033] To make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. The following will make a detailed description of the specific implementation mode of the present invention with reference to the drawings of the specification.

[0034] As Figures 1 - 4 and Figure 6 shown, a multi-axis linkage double-station mounting device includes a mounter 1, and an adsorption component 2 is fixedly installed at the end of the vacuum suction pipe of the mounter 1;

[0035] The adsorption component 2 includes a connecting pipe 3 and a nozzle 25 detachably inserted into the connecting pipe 3. An axially extending second inner cavity 7 is provided in the connecting pipe 3, and an annular fixed ring 16 is fixedly connected to the inner wall of the second inner cavity 7;

[0036] Two second sliding rods 17 are symmetrically and slidably connected in the fixed ring 16. A second spring 19 is sleeved on the second sliding rod 17. The end of the second sliding rod 17 is fixedly connected with a second limiting sleeve 18. The inner end of the second sliding rod 17 extends to the inner side of the fixed ring 16 and is fixedly connected with a block 20. A limiting surface 24 matching the card slot 28 is provided on the side of the block 20 facing the nozzle 25. The top surface, bottom surface and outer side of the block 20 are respectively provided with a first arc surface 21, a second arc surface 22 and a third arc surface 23 that are slidably matched with the inner wall of the card slot 28. Among them, the limiting surface 24 is perpendicular to the first arc surface 21 and the third arc surface 23. One end of the second spring 19 abuts against the block 20, and the other end of the second spring 19 abuts against the fixed ring 16;

[0037] Installation and disassembly: When the nozzle 25 is inserted axially into the connecting pipe 3, the nozzle 25 exerts extrusion on the clamping block 20. When the clamping block 20 aligns with the clamping groove 28, the clamping block 20 is embedded in the clamping groove 28, completing the installation of the nozzle 25. The operator reversely rotates the threaded knob 8 to release the pressing force on the connecting ring 26. Subsequently, the nozzle 25 is rotated towards the third arc surface 23 side, and the nozzle 25 exerts extrusion on the clamping block 20 outwards. Then, the nozzle 25 is pulled outwards, enabling the quick replacement and disassembly of the nozzle 25, avoiding the complexity of threaded installation and the time cost of installation and disassembly.

[0038] As Figure 4 , Figure 5 and Figure 7 shown, a first inner cavity 6 is formed in the inner wall of the connecting pipe 3, which is directly below the second inner cavity 7. A fixing seat 10 is slidably sleeved on the inner wall of the connecting pipe 3. A through hole 12 is formed at the top of the fixing seat 10, and an installation groove 11 is formed at the bottom of the fixing seat 10. A sealing ring 9 is fixedly connected to the inner wall of the installation groove 11. A first sliding rod 14 is fixedly connected to the top of the fixing seat 10. A convex ring 5 protrudes from the inner wall of the connecting pipe 3. The end of the first sliding rod 14 passes through the convex ring 5 and extends into the first inner cavity 6. The first sliding rod 14 is slidably connected to the connecting pipe 3. A first spring 13 is sleeved on the outer wall of the first sliding rod 14. A first limiting sleeve 15 is fixedly connected to the outer wall at the top of the first sliding rod 14. A connecting ring 26 is fixedly connected to the outer wall of the nozzle 25. A pressing groove 27 is formed at the top of the connecting ring 26. The connecting ring 26 is in pressing contact with the sealing ring 9 through the pressing groove 27. One end of the first spring 13 is fixedly connected to the first limiting sleeve 15, and the other end of the first spring 13 is fixedly connected to the connecting pipe 3;

[0039] During the insertion of the nozzle 25, the connecting ring 26 at the top of the nozzle 25 pushes the sealing ring 9 to drive the fixing seat 10 to slide upwards along the first sliding rod 14. At this time, the first spring 13 is compressed to generate a reverse acting force, thereby improving the sealing performance of the installation.

[0040] As Figure 3 and Figure 4 shown, a threaded portion 4 is formed in the inner wall of the connecting pipe 3. A threaded knob 8 is sleeved on the outer wall of the nozzle 25. The threaded knob 8 is threadedly connected to the threaded portion 4. The top of the threaded knob 8 presses the connecting ring 26 upwards;

[0041] In some embodiments, a protrusion that is threadedly engaged with the threaded portion 4 is formed at the top of the threaded knob 8.

[0042] The operator rotates the threaded knob 8 to make it press the connecting ring 26 upwards along the threaded portion 4 of the connecting pipe 3, and applies a radial compression force to the sealing ring 9 through the pressing groove 27, improving the sealing performance between the nozzle 25 and the connecting pipe 3 and at the same time improving the firmness of the installation of the nozzle 25.

[0043] As Figure 8 andFigure 9 As shown in the figure, an installation sleeve 29 is sleeved on the outer wall of the connecting pipe 3. A first rotating shaft 30 is rotatably connected to the inner wall of the installation sleeve 29, and a second rotating shaft 31 is rotatably connected to the inner wall of the installation sleeve 29. The end parts of the first rotating shaft 30 and the second rotating shaft 31 are fixedly connected to the connecting pipe 3 respectively. A gear 32 is fixedly connected to the outer wall of the second rotating shaft 31. A bracket 33 is fixedly connected to the outer wall of the installation sleeve 29. A chute 34 is opened at the top of the bracket 33. A toothed plate 35 is slidably connected to the inner wall of the chute 34. The toothed plate 35 is engaged with the gear 32. A screw rod 37 is rotatably connected to the end of the bracket 33. A rotating knob 38 is fixedly connected to the end of the screw rod 37. A connecting block 36 is threadedly connected to the outer wall of the screw rod 37. The top of the connecting block 36 is fixedly connected to the toothed plate 35;

[0044] The angle adjustment of the suction nozzle 25 is realized through the first rotating shaft 30 and the second rotating shaft 31 on the installation sleeve 29. When double-station switching is required, the operator rotates the rotating knob 38 to drive the screw rod 37 to rotate, drives the connecting block 36 to move along the chute 34, and further pushes the toothed plate 35 to be engaged with the gear 32 for transmission. The gear 32 drives the second rotating shaft 31 to rotate, and then the angle of the suction nozzle 25 is adjusted.

[0045] Adjusting the angle of the suction nozzle 25 can optimize the effect of component suction and mounting. By changing the contact angle between the suction nozzle 25 and the component, the fitting degree between the suction nozzle and the component surface can be increased, the suction stability can be improved, and adjusting the angle can also adapt to the mounting requirements of different package types, ensure the accurate alignment of the component and the solder pad, and improve the mounting accuracy;

[0046] In some embodiments, the mounter 1 is installed on a sliding seat on the cross beam. A first station platform and a second station platform are arranged in parallel below the cross beam. The sliding seat is connected to the cross beam through a multi-axis drive mechanism. The multi-axis drive mechanism includes an X-axis drive motor arranged at both ends of the cross beam, a Y-axis drive motor arranged on the sliding seat, and a Z-axis drive motor arranged at the base of the adsorption component. The X-axis drive motor is connected to the sliding seat through a synchronous belt. The output end of the Y-axis drive motor is connected with a precision guide rail that slidably cooperates with the cross beam;

[0047] The mounter 1 straddles above the first station platform and the second station platform through the cross beam. The cross beam is made of high-rigidity aluminum profiles and is fixed to the equipment base through columns at both ends. A linear guide rail that precisely cooperates with the cross beam is provided at the bottom of the sliding seat. The X-axis drive motor drives the sliding seat to move along the length direction of the cross beam through a synchronous belt pulley. The Y-axis drive motor drives the adsorption component 2 to perform horizontal movement perpendicular to the cross beam through a ball screw. The Z-axis drive motor adopts a servo motor combined with a harmonic reducer to drive the adsorption component 2 to achieve precise positioning in the vertical direction;

[0048] The first station platform and the second station platform are symmetrically arranged on both sides of the crossbeam. Each station platform is provided with a vacuum adsorption fixing area and a vision positioning module. When the first station platform performs the mounting operation, the second station platform synchronously performs substrate positioning and component pre-positioning; the X-axis drive motor, Y-axis drive motor, and Z-axis drive motor achieve three-axis linkage through a motion control card, and cooperate with the rotation adjustment mechanism of the mounting sleeve 29, enabling the adsorption component to quickly switch between the two station platforms to form a continuous operation cycle. The vision positioning module includes a high-resolution CCD camera and a ring light source, and the position offset is fed back to the motion control system in real time through the image processing system for dynamic compensation;

[0049] During the double-station switching process, the adsorption component 2 maintains the stability of the vacuum adsorption force through the pressing seal of the sealing ring 9 and the connecting ring 26. The elastic coefficients of the first spring 13 and the second spring 19 are optimized to ensure the reliable fixation of the nozzle 25 under high-speed moving conditions. When the station switching signal is detected, the control system automatically triggers the fine-tuning action of the threaded knob 8, and the compression amount of the sealing ring 9 is monitored in real time through the pressure sensor to ensure the pressure stability of the vacuum pipeline during operation at different stations.

[0050] Working principle: When the operator inserts the nozzle 25 axially into the connecting pipe 3, the nozzle 25 exerts pressure on the block 20 and first contacts the second arc surface 22 of the block 20. During the insertion process, the connecting ring 26 at the top of the nozzle 25 pushes the sealing ring 9 to drive the fixed seat 10 to slide upward along the first sliding rod 14. At this time, the first spring 13 is compressed to generate a reverse acting force. By rotating the nozzle 25 until the block 20 aligns with the card slot 28, the second sliding rod 17 is pushed inward to reset under the action of the second spring 19, enabling the block 20 to be embedded in the card slot 28 to fix the nozzle 25. The limiting surface 24 at the top of the block 20 can prevent the nozzle 25 from sliding. At the same time, the first arc surface 21 and the second arc surface 22 respectively form a sliding fit with the upper and lower inner walls of the card slot 28 to complete the axial locking of the nozzle 25. At this time, the operator rotates the threaded knob 8 to squeeze the connecting ring 26 upward along the threaded part 4 of the connecting pipe 3, and applies a radial compression force to the sealing ring 9 through the pressing groove 27 to achieve the seal between the nozzle 25 and the connecting pipe 3, ensuring the stability of the vacuum adsorption gas path;

[0051] The angle adjustment of the nozzle 25 is realized through the first rotating shaft 30 and the second rotating shaft 31 on the mounting sleeve 29. The operator rotates the rotating knob 38 to drive the screw 37 to rotate, driving the connecting block 36 to move along the sliding groove 34, and then pushing the toothed plate 35 to mesh with the gear 32 for transmission. The gear 32 drives the second rotating shaft 31 to rotate, thereby adjusting the angle of the nozzle 25;

[0052] When the nozzle 25 needs to be replaced, the operator reversely rotates the threaded knob 8 to release the pressing force on the connecting ring 26. Subsequently, the nozzle 25 is rotated towards the third arc surface 23 side, and the nozzle 25 generates an outward extrusion force on the clamping block 20. Then, the nozzle 25 is pulled outwards, so that the nozzle 25 can be quickly replaced and disassembled.

[0053] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present invention, which are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A multi-axis linkage double-station mounting device, characterized in that, Including: A chip mounter (1), with an adsorption component (2) fixedly installed at the end of its vacuum suction pipe; The adsorption component (2) includes a connecting pipe (3) and a nozzle (25) detachably inserted into the connecting pipe (3). An axially extending second inner cavity (7) is provided in the connecting pipe (3), and an annular fixing ring (16) is fixedly connected to the inner wall of the second inner cavity (7); Two second sliding rods (17) are symmetrically and slidably connected within the fixing ring (16). A second spring (19) is sleeved on the second sliding rod (17). The end of the second sliding rod (17) is fixedly connected with a second limiting sleeve (18). The inner end of the second sliding rod (17) extends to the inner side of the fixing ring (16) and is fixedly connected with a clamping block (20). A limiting surface (24) matching with a clamping groove (28) is provided on the side of the clamping block (20) facing the nozzle (25). A first arc surface (21), a second arc surface (22) and a third arc surface (23) that are slidably matched with the inner wall of the clamping groove (28) are respectively provided on the top surface, bottom surface and outer side of the clamping block (20). Among them, the limiting surface (24) is perpendicularly arranged with the first arc surface (21) and the third arc surface (23); A first inner cavity (6) is formed by recessing the inner wall of the connecting pipe (3). A fixing seat (10) is slidably sleeved on the inner wall of the connecting pipe (3). An installation groove (11) is opened at the bottom of the fixing seat (10). A sealing ring (9) is fixedly connected to the inner wall of the installation groove (11). A first sliding rod (14) is fixedly connected to the top of the fixing seat (10). A first spring (13) is sleeved on the outer wall of the first sliding rod (14); An installation sleeve (29) is sleeved on the outer wall of the connecting pipe (3). A first rotating shaft (30) is rotatably connected to the inner wall of the installation sleeve (29). A second rotating shaft (31) is rotatably connected to the inner wall of the installation sleeve (29). The ends of the first rotating shaft (30) and the second rotating shaft (31) are respectively fixedly connected to the connecting pipe (3); A gear (32) is fixedly connected to the outer wall of the second rotating shaft (31). A bracket (33) is fixedly connected to the outer wall of the installation sleeve (29). A chute (34) is opened at the top of the bracket (33). A rack (35) is slidably connected to the inner wall of the chute (34). The rack (35) meshes with the gear (32); A screw rod (37) is rotatably connected to the end of the bracket (33). A rotating knob (38) is fixedly connected to the end of the screw rod (37). A connecting block (36) is threadedly connected to the outer wall of the screw rod (37). The top of the connecting block (36) is fixedly connected to the rack (35).

2. The multi-axis linkage double-station mounting device according to claim 1, wherein: One end of the second spring (19) abuts against the clamping block (20), and the other end of the second spring (19) abuts against the fixing ring (16).

3. The multi-axis linkage double-station mounting device according to claim 2, wherein: A through hole (12) is opened at the top of the fixing seat (10).

4. The multi-axis linkage double-station mounting device according to claim 3, characterized in that: A convex ring (5) is formed by protruding the inner wall of the connecting pipe (3). The end of the first sliding rod (14) penetrates through the convex ring (5) and extends into the first inner cavity (6). The first sliding rod (14) is slidably connected to the connecting pipe (3).

5. The multi-axis linkage double-station mounting device according to claim 4, characterized in that: A first limiting sleeve (15) is fixedly connected to the outer wall of the first sliding rod (14). A connecting ring (26) is fixedly connected to the outer wall of the suction nozzle (25). A pressing groove (27) is formed at the top of the connecting ring (26). The connecting ring (26) is in pressing contact with the sealing ring (9) through the pressing groove (27).

6. The multi-axis linkage double-station mounting device according to claim 5, wherein: One end of the first spring (13) is fixedly connected to the first limiting sleeve (15), and the other end of the first spring (13) is fixedly connected to the connecting pipe (3).

7. The multi-axis linkage double-station mounting device according to claim 6, characterized in that: A threaded portion (4) is formed on the inner wall of the connecting pipe (3). A threaded knob (8) is sleeved on the outer wall of the suction nozzle (25). The threaded knob (8) is in threaded connection with the threaded portion (4), and the top of the threaded knob (8) presses the connecting ring (26) upward.

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