Splicing mechanism for outer fan of air outlet

Abstract

The utility model discloses an air outlet outer fan assembling mechanism which comprises an operation table, a carrying table, a first pressing assembly and a pair of second pressing assemblies, the carrying table is connected with the operation table in a sliding mode and is provided with a first carrying seat and a pair of second carrying seats, and the second carrying seats are movable and are provided with first linear driving mechanisms. The first pressing assembly is connected with the operation table through a mounting frame, and the second pressing assemblies are oppositely arranged on the two sides of the carrying table. By means of the structure, efficient and accurate splicing of the air outlet outer fan assembly can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to an air outlet outer fan assembly mechanism. Background Art

[0002] With the continuous development of industrial production and manufacturing technology, the requirements for assembly precision are becoming increasingly higher. Traditional assembly methods rely on manual assembly, but when encountering small parts or assembling multiple parts one by one in sequence, it will result in low assembly efficiency, low precision, and even damage to parts during assembly.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of the utility model is to provide an air outlet outer fan assembly mechanism, which can realize the efficient and precise assembly of the air outlet outer fan components, reduce the errors and inefficiency problems caused by manual operation, improve production efficiency and product quality, and at the same time reduce labor intensity, and adapt to the assembly needs of air outlet outer fan components of different specifications.

[0005] Technical solution: The utility model provides an air outlet external fan assembly mechanism, including an operating table, a carrier is provided on the operating table, and the carrier is movably connected to the operating table; a first carrier and a pair of second carriers are provided on the carrier, the first carrier and the second carrier are provided with grooves matching the external fan assembly, the second carrier is relatively arranged on both sides of the first carrier, and the second carrier is movably connected to the carrier; a first linear drive mechanism, the end and output end of the first linear drive mechanism are respectively connected to the corresponding second carriers, and the first linear drive mechanism drives the two second carriers to reciprocate; a first pressing assembly, the first pressing assembly is arranged above the operating table and is connected to the operating table through a mounting frame; a pair of second pressing assemblies, the second pressing assemblies are relatively arranged on both sides of the carrier.

[0006] The air outlet outer fan assembly is assembled from two groups of fan blades, an intermediate connector, and a pair of side connectors. Each group is provided with multiple fan blades. The intermediate connector is located between the two groups of fan blades and is used to connect the two groups of fan blades. The side connector is used to connect multiple fan blades on the side of each group of fan blades. A first carrier is provided on the carrier. The upper end of the first carrier is provided with a groove that matches the intermediate connector, and the upper end of the second carrier is provided with a groove that matches the fan blades. Before assembly, the operator places the multiple fan blades and the intermediate connector in the corresponding grooves respectively, and the first carrier and a pair of second carriers are arranged at intervals. First, the first pressing assembly presses the intermediate connector and the fan blades in the grooves of the first carrier and the second carrier respectively in the vertical direction. Then, the first linear drive mechanism drives the pair of second carriers to close and squeeze towards each other. At this time, the two groups of fan blades and the intermediate connector are successfully spliced. Finally, a pair of second pressing assemblies are squeezed towards each other, and a pair of side connectors are respectively spliced ​​with the two groups of fan blades on both sides of the two groups of fan blades. At this point, the air outlet outer fan assembly is successfully assembled.

[0007] Furthermore, in the present application, an air outlet external fan assembly mechanism, the first pressing assembly includes a first cylinder, the first cylinder is mounted on the upper end of the mounting frame, its axis is perpendicular to the operating table, and its output end is mounted with a first pressure plate, and a first pressure block and a pair of second pressure blocks are provided below the first pressure plate; the first pressure block and the second pressure block correspond to the first carrier and the second carrier respectively, and the first pressure block and the second pressure block are provided with grooves matching the external fan assembly; the second pressure block is relatively arranged on both sides of the first pressure block, and the second pressure block is movably connected to the first pressure plate; a second linear drive mechanism, the end and output end of the second linear drive mechanism are respectively connected to the corresponding second pressure block, and the second linear drive mechanism drives the two second pressure blocks to reciprocate. The first pressure block is provided with a groove matching the intermediate connecting piece, and the second pressure block is provided with a groove matching the fan blade. After the first cylinder completes the downward pressure, the first linear drive mechanism drives the pair of second carriers to close and squeeze toward each other, while the corresponding second linear drive mechanism drives the pair of second pressure blocks to close toward each other.

[0008] Furthermore, in the present application, an air outlet outer fan assembly mechanism, the second pressing assembly includes a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are arranged on the operating table along the same straight line, a second cylinder is installed on the first mounting seat, a third pressure block assembly is installed on the output end of the second cylinder, a first slide rail and an adjustable limit block are provided on the second mounting seat, a first slider is provided on the first slide rail, and the first slider is connected to the third pressure block assembly; the two second cylinders are coaxial and axially opposite, and their axes are parallel to the operating table. The third pressure block assembly is provided with a groove corresponding to the shape of the side connecting piece, so that the side connecting piece is accurately limited in the groove. Before pressing and assembling, the side connecting piece is placed in the corresponding groove of the third pressure block assembly. After the two groups of fan blades and the middle connecting piece are successfully spliced ​​in the current process, the two second cylinders press the side connecting piece on both sides of the two groups of fan blades from both sides of the two groups of fan blades, and finally complete the assembly of the outer fan assembly. The function of the adjustable limit block is to limit the second carrier. Because of the special structure of the outer fan assembly, the two second cylinders are parallel to the operating table, so that the side connectors and fan blades can be assembled more accurately.

[0009] Furthermore, in the present application, a mechanism for assembling an air outlet fan is provided with a pair of limit plates at both ends of the first pressure plate, each of which is provided with an adjustment screw that passes through the limit plates and is threadedly connected to the limit plates. The pair of limit plates limit the position of the corresponding second pressure block on both sides to ensure accurate positioning. By rotating and extending the adjustment screw, the position of the second pressure block can be fine-tuned to ensure pressing accuracy.

[0010] Furthermore, the air outlet outer fan assembly mechanism of the present application further includes a set of second slide rails and a third linear drive mechanism, wherein the second slide rails and the third linear drive mechanism are mounted on an operating table, the second slide rails vertically extending between the two second mounting seats, the platform being slidably connected to the second slide rails via a sliding block, and the output end of the third linear drive mechanism being connected to the platform and driving the platform to reciprocate. The platform is driven to reciprocate by the third linear drive mechanism, and when the outer fan assembly is successfully assembled, the next process is carried out, and after the next process is completed, the process returns to the next outer fan assembly process.

[0011] Furthermore, in an air outlet outer fan assembly mechanism in the present application, a pair of first sensors are provided on the first linear drive mechanism for detecting the opening and closing status of the second carrier.

[0012] Furthermore, in an air outlet outer fan assembly mechanism in the present application, a pair of second sensors are provided on the second linear drive mechanism for detecting the opening and closing state of the second pressing block.

[0013] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0014] 1. The utility model discloses an air outlet outer fan assembly mechanism that realizes efficient and precise assembly of the air outlet outer fan assembly through a reasonable structural design. The first carrier and the second carrier on the carrier are respectively provided with grooves matching the intermediate connector and the fan blades, which can accurately place the parts; the first linear drive mechanism drives the second carrier to move, and the linear drive mechanisms in the first pressing assembly and the second pressing assembly drive the pressing blocks to press together, which can realize the precise splicing of multiple parts in sequence, reduce the errors caused by manual operation, improve the assembly accuracy and efficiency, and reduce the labor intensity at the same time, so as to meet the assembly requirements of air outlet outer fan assemblies of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the first angle of an air outlet outer fan assembly mechanism of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the second angle of the air outlet outer fan assembly mechanism of the utility model;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0018] Figure 4 This is a schematic structural diagram of the third angle of the air outlet outer fan assembly mechanism of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the first angle of an air outlet outer fan assembly mechanism including a general assembly mechanism of the utility model;

[0020] Figure 6 for Figure 5 A magnified schematic diagram of part C;

[0021] Figure 7 This is a second angle structural diagram of an air outlet outer fan assembly mechanism including a general assembly mechanism according to the utility model;

[0022] Figure 8 For this utility model Figure 7 A magnified schematic diagram of part B;

[0023] Figure 9 This is a schematic structural diagram of an air outlet outer fan assembly mechanism of the utility model, which includes an assembly mechanism, a frame, a movable roller, and a parts placement table.

[0024] Description of the accompanying drawings: 1-operating table, 2-carrier, 21-first carrier, 22-second carrier, 23-first linear drive mechanism, 24-carrier slide, 231-first sensor, 3-first pressing assembly, 31-first cylinder, 32-first pressure plate, 33-first pressure block, 34-second pressure block, 35-second linear drive mechanism, 36-pressure plate slide, 351-second sensor, 4-second pressing assembly, 41-first mounting seat, 42-second mounting seat, 43-second cylinder, 44-third pressure block, 45-first slide, 46-can be Adjust the limit block, 47-first slider, 5-mounting frame, 6-second slide rail, 7-third linear drive mechanism, 8-final assembly mechanism, 81-third pressing assembly, 811-third cylinder, 812-fourth pressing block, 82-final assembly table, 821-table top, 822-guide column, 823-spring, 824-first limit block, 8241-first protrusion, 8211-opening, 9-frame, 91-parts placement table, 92-moving roller, 10-outlet outer fan assembly, 101-fan blades, 102-middle connecting piece, 103-side connecting piece, 11-housing. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figure 1 、 23 shows an assembly mechanism for an air outlet external fan, an operating table 1, a carrier 2 is provided on the operating table 1, and the carrier 2 is movably connected to the operating table 1; a first carrier 21 and a pair of second carriers 22 are provided on the carrier 2, the first carrier 21 and the second carrier 22 are provided with grooves matching the external fan assembly, the second carrier 22 is relatively arranged on both sides of the first carrier 21, and the second carrier 22 is movably connected to the carrier 2; a first linear drive mechanism 23, the end and output end of the first linear drive mechanism 23 are respectively connected to the corresponding second carrier 22, and the first linear drive mechanism 23 drives the two second carriers 22 to reciprocate; a first pressing component 3, the first pressing component 3 is arranged above the operating table 1, and is connected to the operating table 1 through the mounting frame 5; a pair of second pressing components 4, the second pressing components 4 are relatively arranged on both sides of the carrier 2. The air outlet outer fan assembly 10 is assembled by two groups of fan blades 101, an intermediate connector 102 and a pair of side connectors 103. Each group is provided with multiple fan blades 101. The intermediate connector 102 is provided between the two groups of fan blades 101 and is used to connect the two groups of fan blades 101. The side connector 103 is used to connect multiple fan blades 101 on the side of each group of fan blades 101. A first carrier 21 is provided on the carrier 2. The upper end of the first carrier 21 is provided with a groove that matches the intermediate connector 102, and the upper end of the second carrier 22 is provided with a groove that matches the fan blades 101. Before assembly, the operator places the multiple fan blades 101 and the intermediate connector 102 in the corresponding grooves respectively, and the first carrier 21 and a pair of second carriers 22 are arranged at intervals. First, the first pressing assembly 3 presses the intermediate connector 102 and the fan blades 101 into the grooves of the first carrier 21 and the second carrier 22 respectively in the vertical direction downward. Next, the first linear drive mechanism 23 drives the pair of second carriers 22 toward each other, squeezing them together. This successfully connects the two sets of blades 101 to the intermediate connector 102. Finally, the pair of second press-fit assemblies 4 squeeze toward each other, successfully connecting the pair of side connectors 103 to the two sets of blades 101 on either side. This completes the assembly of the air outlet outer fan assembly 10. The first linear drive mechanism 23 is a pneumatic cylinder, and the second carrier 22 is slidably connected to the platform 2 via platform rails 24 provided on the platform 2.

[0028] In this embodiment, Figure 1As shown, the first pressing assembly 3 includes a first cylinder 31, which is mounted on the upper end of the mounting frame 5, with its axis perpendicular to the operating table 1. The output end of the first pressing plate 32 is mounted. A first pressing block 33 and a pair of second pressing blocks 34 are provided below the first pressing plate 32. The first pressing block 33 and the second pressing block 34 correspond to the first carrier 21 and the second carrier 22 respectively. The first pressing block 33 and the second pressing block 34 are provided with grooves that match the outer fan assembly; the second pressing blocks 34 are arranged on both sides of the first pressing block 33, and the second pressing blocks 34 are movably connected to the first pressing plate 32; and a second linear drive mechanism 35. The end and output end of the second linear drive mechanism 35 are respectively connected to the corresponding second pressing blocks 34, and the second linear drive mechanism 35 drives the two second pressing blocks 34 to reciprocate. The first pressing block 33 is provided with a groove that matches the intermediate connecting member 102, and the second pressing block 34 is provided with a groove that matches the fan blade 101. After the first cylinder 31 completes its downward movement, the first linear drive mechanism 23 drives the pair of second carriers 22 toward each other, pressing them together. Simultaneously, the corresponding second linear drive mechanism 35 drives the pair of second pressure blocks 34 toward each other. The second linear drive mechanism 35 is a pneumatic cylinder, and the second pressure blocks 34 are slidably connected to the carrier 2 via pressure plate guide rails 36 provided on the first pressure plate 32.

[0029] In this embodiment, Figure 4 、 8 As shown, the second pressing assembly 4 includes a first mounting seat 41 and a second mounting seat 42. The first mounting seat 41 and the second mounting seat 42 are arranged on the operating table 1 along the same straight line. A second cylinder 43 is installed on the first mounting seat 41, and a third pressure block assembly 44 is installed on the output end of the second cylinder 43. A first slide rail 45 and an adjustable limit block 46 are provided on the second mounting seat 42. A first slider 47 is provided on the first slide rail 45, and the first slider 47 is connected to the third pressure block assembly 44; the two second cylinders 43 are coaxial and axially opposite, and their axes are parallel to the operating table 1. The third pressing block assembly 44 is provided with a groove corresponding to the shape of the side connecting piece 103, so that the side connecting piece 103 is accurately limited in the groove. Before pressing and assembling, the side connecting piece 103 is placed in the corresponding groove of the third pressing block assembly 44. After the two groups of fan blades 101 and the intermediate connecting piece 102 are successfully spliced ​​in the current process, the two second cylinders 43 press the side connecting piece 103 on both sides of the two groups of fan blades 101, and finally complete the assembly of the outer fan assembly 10. The function of the adjustable limit block 46 is to limit the second carrier 22. Due to the special structure of the outer fan assembly 10, the two second cylinders 43 are parallel to the operating table 1, so that the side connecting piece 103 and the fan blades 101 can be more accurately assembled.

[0030] In this embodiment, Figure 1As shown, a pair of limiting plates 321 are provided at both ends of the first pressing plate 32. Each limiting plate 321 is provided with an adjusting screw 322, which passes through the limiting plates 321 and is threadedly connected to the limiting plates 321. The pair of limiting plates 321 limit the corresponding second pressing blocks 34 on both sides to ensure accurate positioning. By rotating and extending the adjusting screw, the position of the second pressing blocks 34 can be fine-tuned to ensure pressing accuracy.

[0031] In this embodiment, Figure 4 As shown, the system also includes two parallel second rails 6 and a third linear drive mechanism 7. The second rails 6 and third linear drive mechanism 7 are mounted on the operating table 1. The second rail 6 extends vertically between the two second mounting seats 42. The platform 2 is slidably connected to the second rails 6 via a sliding block. The output end of the third linear drive mechanism 7 is connected to the platform 2 and drives the platform 2 to reciprocate. The third linear drive mechanism 7 drives the platform 2 to reciprocate. After the outer fan assembly 10 is successfully assembled, the next step is carried out. After the next step is completed, the system returns to the next outer fan assembly 10 assembly. The third linear drive mechanism is a pneumatic cylinder.

[0032] In this embodiment, Figure 3 As shown, a pair of first sensors 231 are provided on the first linear drive mechanism 23 for detecting the opening and closing status of the second carrier 22 .

[0033] In this embodiment, Figure 5 、 6 As shown, a pair of second sensors 351 are provided on the second linear drive mechanism 35 for detecting the opening and closing status of the second pressing block 34 .

[0034] Here is how the assembly mechanism works:

[0035] 1. Assembly of the air outlet outer fan assembly 10

[0036] 1.1 Parts placement

[0037] The operator places the fan blade 101 and the intermediate connector 102 in the corresponding grooves on the carrier 2. Simultaneously, the second linear drive mechanism (cylinder) 35 and the first linear drive mechanism (cylinder) 23 are extended. The first carrier 21 and the pair of second carriers 22 are spaced apart, and the first pressure block 33 and the pair of second pressure blocks 34 are spaced apart. The first pressure block 33 and the first carrier 21 are aligned vertically, while the second pressure block 34 and the second carrier 22 are aligned vertically. The first and second pressure blocks 33 and 34 also have corresponding grooves.

[0038] 1.2 Preliminary pressing of fan blades and intermediate connectors

[0039] The first cylinder 31 drives the first pressing plate 32, driving the first pressing block 33 and the second pressing block 34 on the first pressing plate 32 to press down, thereby pressing the intermediate connecting member 102 and the fan blade 101 into the first carrier 21 and the second carrier 22 respectively.

[0040] 1.2 Further splicing of fan blades and intermediate connectors

[0041] The second linear drive mechanism (cylinder) 35 and the first linear drive mechanism (cylinder) 23 begin to contract, respectively driving a pair of second pressing blocks 34 and a pair of second carriers 22 to close and squeeze toward each other. At this time, the two sets of fan blades 101 and the intermediate connecting piece 102 are successfully spliced.

[0042] 1.3 Add side connectors and complete the assembly of the external fan assembly

[0043] Place the side connectors 103 in the grooves of the third pressing block assembly 44 of the second pressing assembly 4. Press the pair of third pressing block assemblies 44 toward each other, and successfully connect the pair of side connectors 103 to the fan blades 101 on both sides of the two sets of fan blades 101. The air outlet outer fan assembly 10 is now successfully assembled.

[0044] Example 2

[0045] like Figure 7 、 8 9 , in addition to the components of Example 1, further includes an assembly mechanism 8 and a frame 9 . The operating table 1 is mounted on the frame 9 . The assembly mechanism 8 includes a total pressure assembly 81 and a split assembly 82 . The split assembly 82 is mounted on the operating table 1 . The total pressure assembly 81 is mounted above the split assembly 82 and connected to the operating table 1 via the mounting frame 5 . The assembly mechanism 8 assembles the outer casing 11 with the external fan assembly. The outer casing 11 is placed on the split assembly 82 .

[0046] In this embodiment, Figure 7 As shown, the total pressure assembly 81 includes a third cylinder 811, which is mounted on the upper end of the mounting frame 5, and a fourth pressure block 812 is mounted on the output end thereof. The fourth pressure block 812 is provided with a groove corresponding to the housing 11.

[0047] In this embodiment, Figure 7 、 8As shown, the assembly component 82 includes an assembly table 821 and a group of guide columns 822. The assembly table 821 is arranged above the operating table 1, and the two are connected by a group of guide columns 822. Springs 823 are provided on the outside of the guide columns 822. The two ends of the springs 823 respectively contact the operating table 1 and the assembly table 821. An opening 8211 is provided in the middle of the assembly table 821, and a group of first limit blocks 824 are provided on the outer edge of the opening 8211 on the assembly table 821. The first limit blocks 824 are provided with a first protrusion 8241, and the first protrusion 8241 extends to above the opening 8211. A set of guide pillars 822 is 4 in number and is provided on the assembly table 821. The assembly table 821 can move up and down along the axis of the guide pillars 822. The assembled outer fan assembly 10 is driven by the third linear drive mechanism 7 to drive the carrier 2 on the second slide rail 6 to be transferred to the lower part of the assembly table 821. The third cylinder 811 is installed on the upper end of the mounting frame 5 and the fourth pressure block 812 is opposite to the housing 11 placed on the first protrusion 8241 on the first limit block 824. The fourth pressure block 812 can accurately press the housing 11 under the drive. The pressure is applied, driving the assembly table 821 to press down together until it is successfully assembled with the outer fan assembly 10 below. When the assembly is successful, the outer fan assembly 10 and the housing 11 are integrated. The third cylinder 811 drives the fourth pressure block 812 to retract after the downward pressure is completed. The first limit block 824 on the assembly table 821 carries the assembled air outlet assembly back to the initial position through the spring 823 sleeved on the guide column 822. At this time, the carrier 2 returns via the third linear drive mechanism 7 to proceed with the next assembly of the outer fan assembly 10. The third linear drive mechanism is a cylinder.

[0048] Here is how the assembly mechanism works:

[0049] 1. Assemble the outer shell 11 and the outer fan assembly 10

[0050] 1.1 Housing 11 placement and component transfer

[0051] The housing 11 is placed on the assembly 82. The assembled outer fan assembly 10 is driven by the linear drive mechanism 7 to drive the carrier 2 on the second slide rail 6 to be transferred to the assembly assembly 82 just below the assembly table 821.

[0052] 1.2 Pressing and assembly

[0053] The third cylinder 811 is installed at the upper end of the mounting frame 5 and the fourth pressure block 812 is opposite to the outer shell 11 placed on the first protrusion 8241 on the first limit block 824 of the splicing component 82. The fourth pressure block 812 can accurately apply pressure to the outer shell 11 under driving, driving the assembly table 821 of the splicing component 82 to be pressed down together until it is successfully assembled with the outer fan component 10 below. When the assembly is successful, the outer fan component 10 and the outer shell 11 are formed into one.

[0054] 1.3 Reset

[0055] The third cylinder 811 drives the fourth pressure block 812 to retract after the pressure is completed. The first limit block 824 on the assembly table 821 of the assembly component 82 carries the assembled air outlet assembly back to the initial position through the spring 823 arranged outside the guide column 822. At this time, the platform 2 returns through the linear drive mechanism 7 to assemble the next external fan component 10.

[0056] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air outlet outer fan assembly mechanism, characterized by: include: An operating table (1), wherein the operating table (1) is provided with a carrier (2), and the carrier (2) is movably connected to the operating table (1); a first carrier (21) and a pair of second carriers (22) are provided on the carrier (2), wherein the first carrier (21) and the second carrier (22) are provided with grooves matching the outer fan assembly, and the second carrier (22) is relatively arranged on both sides of the first carrier (21), and the second carrier (22) is movably connected to the carrier (2); a first linear drive mechanism (23), wherein the end and the output end of the first linear drive mechanism (23) are respectively connected to the corresponding second carriers (22), and the first linear drive mechanism (23) drives the two second carriers (22) to reciprocate; a first pressing assembly (3), wherein the first pressing assembly (3) is arranged above the operating table (1) and is connected to the operating table (1) through a mounting frame (5); and a pair of second pressing assemblies (4), wherein the second pressing assembly (4) is relatively arranged on both sides of the carrier (2).

2. The air outlet outer fan assembly mechanism according to claim 1, characterized in that: The first pressing assembly (3) includes a first cylinder (31), which is installed on the upper end of the mounting frame (5), and its axis is perpendicular to the operating table (1). The output end of the first pressing plate (32) is installed, and a first pressing block (33) and a pair of second pressing blocks (34) are provided below the first pressing plate (32). The second pressing blocks (34) are relatively arranged on both sides of the first pressing block (33). The second pressing blocks (34) are movably connected to the first pressing plate (32), and the first pressing block (33) and the second pressing block (34) correspond to the first carrier (21) and the second carrier (22) respectively. The first pressing block (33) and the second pressing block (34) are provided with grooves matching the outer fan assembly; and the second linear driving mechanism (35) is also included. The end and output end of the second linear driving mechanism (35) are respectively connected to the corresponding second pressing blocks (34), and the second linear driving mechanism (35) drives the two second pressing blocks (34) to reciprocate.

3. The air outlet outer fan assembly mechanism according to claim 2, characterized in that: The second pressing assembly (4) comprises a first mounting seat (41) and a second mounting seat (42), wherein the first mounting seat (41) and the second mounting seat (42) are arranged on the operating table (1) at intervals along the same straight line, a second cylinder (43) is mounted on the first mounting seat (41), a third pressing block assembly (44) is mounted on the output end of the second cylinder (43), a first slide rail (45) and an adjustable limit block (46) are provided on the second mounting seat (42), a first slider (47) is provided on the first slide rail (45), and the first slider (47) is connected to the third pressing block assembly (44); the second cylinder (43) is coaxial and axially opposed, and its axis is parallel to the operating table (1).

4. The air outlet outer fan assembly mechanism according to claim 3, characterized in that: A pair of limiting plates (321) are provided at both ends of the first pressing plate (32), and an adjusting screw (322) is provided on the limiting plate (321). The adjusting screw (322) is passed through the limiting plate (321) and is threadedly connected to the limiting plate (321).

5. The air outlet outer fan assembly mechanism according to claim 4, characterized in that: The invention also includes a set of second slide rails (6) and a third linear drive mechanism (7). The second slide rails (6) and the third linear drive mechanism (7) are installed on the operating table (1). The second slide rails (6) vertically pass through the two second mounting seats (42). The platform (2) is slidably connected to the second slide rails (6) through a sliding block. The output end of the third linear drive mechanism (7) is connected to the platform (2) and drives the platform (2) to move back and forth.

6. The air outlet outer fan assembly mechanism according to claim 5, characterized in that: A pair of first sensors (231) are provided on the first linear drive mechanism (23) for detecting the opening and closing state of the second carrier (22).

7. The air outlet outer fan assembly mechanism according to claim 6, characterized in that: A pair of second sensors (351) are provided on the second linear drive mechanism (35) for detecting the opening and closing state of the second pressing block (34).

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