An automatic fan blade assembly device and assembly method

Abstract

This invention discloses an automatic fan blade assembly device and method, including a mounting platform on which an assembly platform is rotatably mounted via a first motor. A feeding mechanism and a pressing mechanism are provided on the outer side of the assembly platform. The device also includes a telescopic column rotatably mounted at the top edge of the assembly platform. A telescopic sleeve is fitted onto the top of the telescopic column, and a positioning seat is fitted onto the top of the telescopic sleeve via a bearing. A buffer assembly is provided between the positioning seat and the assembly platform to buffer and protect the positioning seat. An adjusting disc is rotatably mounted embedded within the positioning seat and is fixedly fitted onto the telescopic sleeve. An adjusting groove is formed on the top of the adjusting disc. This automatic fan blade assembly device and method provides buffer protection during the assembly and pressing process and is applicable to the assembly and buffer protection of fans of different specifications.

Description

Technical Field

[0001] This invention relates to the technical field, specifically to an automatic fan blade assembly device and assembly method. Background Technology

[0002] Fan blades convert the rotational mechanical energy of an electric motor into the kinetic energy of airflow, thereby generating directional airflow and ultimately achieving the core functions of "air delivery" or "heat dissipation". In the production and processing of cooling fans, when assembling fan blades, they need to be pressed into the fan frame and components such as the central bushing and pins need to be installed. This requires steps such as receiving, feeding and pressing. However, existing automatic fan blade assembly equipment has the following problems when in use.

[0003] For fan blade assembly, a top-down pressing method is mostly used, with a feeding mechanism placing the components in the corresponding central area to achieve automated assembly. However, existing automatic fan blade assembly equipment is inconvenient for cushioning protection and mostly relies on rigid pressing. Due to limitations in the production process, there are slight differences in the precision of the components. During assembly, direct rigid pressing can easily lead to problems caused by dimensional inaccuracies, affecting the quality of the finished product. At the same time, the dimensions of fan blades and related components vary in different heat sinks. Existing automatic fan blade assembly equipment is not easy to adjust to meet the assembly needs of different specifications. It mostly involves replacing the positioning mechanism. On the basis of multi-station pressing, the installation of the positioning mechanism is not only subject to precision differences, but also cumbersome to operate, which can easily lead to the loss of parts and affect continuous use.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic fan blade assembly device and assembly method to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic fan blade assembly device and assembly method, comprising an assembly platform, wherein the assembly platform is rotatably mounted on the assembly platform by a first motor, and a feeding mechanism and a pressing mechanism are provided on the outside of the assembly platform;

[0007] It also includes a telescopic column, which is rotatably installed at the top edge of the assembly table. The top of the telescopic column is fitted with a telescopic sleeve, and the top of the telescopic sleeve is fitted with a positioning seat through a bearing. A buffer assembly is provided between the positioning seat and the assembly table to buffer and protect the positioning seat. An adjustment plate is rotatably installed embedded in the positioning seat. The adjustment plate is fixedly fitted on the telescopic sleeve. The top of the adjustment plate has an adjustment groove, and an adjustment rod is provided in the adjustment groove. The top of the adjustment rod passes through a guide cavity and a positioning block is fixed thereon. The guide cavity is located on the upper end face of the positioning seat.

[0008] A size adjustment component is provided, which is installed inside the assembly table, and adjusts the position of the positioning block according to the specifications of the fan.

[0009] Preferably, the buffer assembly includes a buffer platform and a base. The buffer platform is disposed between the assembly platform and the positioning seat. The buffer platform is sleeved on the outside of the telescopic column. A bottom rod is fixed to the top of the buffer platform. A top rod is installed in the top cavity of the bottom rod by a spring. The top of the top rod is fixed to the bottom of the positioning seat. A base is disposed on the outside of the buffer platform. A positioning rod is slidably limited in the top cavity of the base. The positioning rod is fixed to the bottom of the positioning seat.

[0010] Preferably, a guide groove is provided on the inner wall of the buffer platform, and a guide head is provided in the guide groove, the guide head being fixed to the outside of the telescopic column.

[0011] Preferably, the guide head slides in contact with the guide groove, and the guide groove is distributed in a spiral structure.

[0012] Preferably, the initial position of the positioning rod is located at the upper limit inside the base, and the base is distributed at the four corners of the bottom of the positioning seat.

[0013] Preferably, the adjusting rod slides within the adjusting groove, the adjusting groove is distributed in an inclined arc shape on the adjusting plate, the adjusting rod slides within the guiding cavity, and the guiding cavities are distributed opposite each other on the positioning seat.

[0014] Preferably, the positioning blocks are distributed at the top four corners of the positioning seat, and the positioning blocks have notches on their inner sides.

[0015] Preferably, the size adjustment assembly includes a second motor, which is fixed to the bottom of the assembly table. The output end of the second motor is connected to a screw via a bevel gear set. The screw is installed laterally and rotates within the assembly table. A rack is threaded onto the outer end of the screw. The rack slides within the assembly table. A toothed roller meshes with one side of the rack. The toothed roller is embedded and rotates within the assembly table. The top of the toothed roller is connected to a telescopic column.

[0016] Preferably, the assembly method includes the following steps:

[0017] S1: According to the fan blade specifications, the second motor drives the screw to rotate, adjusts the position of the rack, drives the toothed roller to rotate, and the telescopic column and telescopic sleeve drive the adjustment disc to rotate, which in turn adjusts the position of the positioning block in conjunction with the adjustment groove, adjustment rod and guide cavity.

[0018] S2: The rotation of the telescopic column drives the buffer platform to move vertically through the guide groove and guide head, adjusting the position of the bottom rod and adjusting the initial pressure of the spring;

[0019] S3: The fan blades, frame and other components are assembled by sequentially placing them on the positioning seat through the feeding mechanism and pressing mechanism. During the pressing process, the positioning seat moves downward under force, which drives the spring to move downward, and the spring provides buffer protection.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. According to the pressing requirements of different specifications, the present invention only requires the second motor to drive the screw to rotate, the rack to move and drive the toothed roller to rotate, and the telescopic column and telescopic sleeve to drive the adjustment plate to rotate. Under the action of the adjustment groove and the guide cavity, the positions of four positioning blocks on multiple positioning seats are adjusted synchronously to adjust the multi-station positioning seats synchronously. The adjustment process is simple and has good synchronization, which helps to reduce maintenance time and frequency, and at the same time provides a guarantee for the accuracy of each station, thereby helping to improve the quality of finished products.

[0022] 2. In this invention, during size adjustment, the rotation of the telescopic column can drive the buffer platform to move up and down via the guide groove and guide head. By adjusting the position of the base rod, the compression degree of the spring can be adjusted, allowing the spring to provide different buffering forces. This ensures that fan blade accessories of different specifications can receive stable support and protection during press-fitting. Through the ingenious use of the base and positioning rod, stable buffering is ensured while the positioning seat position is stable, which helps with the subsequent press-fitting positioning. There is no need to make complex adjustments to the feeding and press-fitting mechanisms. The overall device greatly improves its applicability and economic efficiency through the synchronous adjustment of size and buffering. Attached Figure Description

[0023] Figure 1 This is a top view schematic diagram of the distribution structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the assembly platform of the present invention from the front.

[0025] Figure 3 This is a schematic diagram of the internal structure of the positioning base of the present invention from the front.

[0026] Figure 4 For the present invention Figure 3Enlarged structural diagram at point A in the middle;

[0027] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0028] Figure 6 This is a bottom view schematic diagram of the connection structure between the telescopic column and the telescopic sleeve of the present invention;

[0029] Figure 7 This is a top view of the adjustment disc structure of the present invention;

[0030] Figure 8 This is a top view schematic diagram of the distribution structure of the guide cavity of the present invention.

[0031] In the diagram: 1. Mounting platform; 2. Assembly platform; 21. First motor; 3. Telescopic column; 4. Telescopic sleeve; 5. Positioning seat; 61. Buffer platform; 611. Guide groove; 612. Guide head; 62. Bottom rod; 63. Top rod; 64. Spring; 65. Base; 66. Positioning rod; 7. Adjusting plate; 8. Adjusting groove; 9. Adjusting rod; 10. Positioning block; 11. Guide cavity; 121. Second motor; 122. Screw; 123. Rack; 124. Toothed roller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-8 This invention provides a technical solution: an automatic fan blade assembly device and assembly method, including an installation platform 1, an assembly platform 2 rotatably mounted on the installation platform 1 via a first motor 21, a feeding mechanism and a pressing mechanism provided on the outer side of the assembly platform 2; a telescopic column 3 rotatably mounted at the top edge of the assembly platform 2, a telescopic sleeve 4 is provided at the top of the telescopic column 3 for limiting, a positioning seat 5 is mounted on the top of the telescopic sleeve 4 via a bearing, a buffer assembly is provided between the positioning seat 5 and the assembly platform 2 for buffering and protecting the positioning seat 5, and positioning blocks 10 are distributed at the four corners of the top of the positioning seat 5, with notches provided on the inner side of the positioning blocks 10;

[0034] In one embodiment of the present invention, the buffer assembly includes a buffer platform 61 and a base 65. The buffer platform 61 is disposed between the assembly platform 2 and the positioning seat 5. The buffer platform 61 is sleeved on the outside of the telescopic column 3. A bottom rod 62 is fixed to the top of the buffer platform 61. A top rod 63 is installed in the top cavity of the bottom rod 62 through a spring 64. The top of the top rod 63 is fixed to the bottom of the positioning seat 5. A base 65 is disposed on the outside of the buffer platform 61. A positioning rod 66 is slidably limited in the top cavity of the base 65. The positioning rod 66 is fixed to the bottom of the positioning seat 5.

[0035] The fan frame is placed between four positioning blocks 10 and positioned by the concave area of ​​the positioning blocks 10. Then, the fan blades and their central positioning bushings, pins and other components are placed in the corresponding areas inside the fan frame by the feeding mechanism. The first motor 21 drives the assembly table 2 to rotate, and the pressing mechanism is used to assemble them one by one to complete the assembly of the fan blades. During pressing, the positioning seat 5 is moved downward by the force, and the spring 64 is compressed by the downward movement of the top rod 63. The spring 64 provides the buffer force.

[0036] In one embodiment of the present invention, an adjustment disc 7 is rotatably mounted embedded in the positioning seat 5. The adjustment disc 7 is fixedly sleeved on the telescopic sleeve 4. An adjustment groove 8 is opened on the top of the adjustment disc 7. An adjustment rod 9 is provided in the adjustment groove 8. The top of the adjustment rod 9 passes through the guide cavity 11 and a positioning block 10 is fixed thereon. The guide cavity 11 is opened on the upper end face of the positioning seat 5. The adjustment rod 9 slides in the adjustment groove 8. The adjustment groove 8 is distributed in an inclined arc structure on the adjustment disc 7. The adjustment rod 9 slides in the guide cavity 11. The guide cavities 11 are distributed opposite to each other on the positioning seat 5.

[0037] In one embodiment of the present invention, a size adjustment component is disposed in the assembly platform 2. The size adjustment component adjusts the position of the positioning block 10 according to the specifications of the fan. The size adjustment component includes a second motor 121, which is fixed to the bottom of the assembly platform 2. The output end of the second motor 121 is connected to a screw 122 through a bevel gear set. The screw 122 is installed in the assembly platform 2 and rotates laterally. The outer end of the screw 122 is threaded with a rack 123. The rack 123 slides in contact with the assembly platform 2. A toothed roller 124 is engaged on one side of the rack 123. The toothed roller 124 is embedded and rotated in the assembly platform 2. The top of the toothed roller 124 is connected to the telescopic column 3.

[0038] According to the fan specifications, the positions of the four positioning blocks 10 on each positioning seat 5 are adjusted. The second motor 121, in conjunction with the bevel gear group, drives multiple screws 122 to rotate. The screws 122 drive the rack 123 to move, and the rack 123 drives the toothed roller 124 to rotate. The toothed roller 124 drives the adjusting disc 7 to rotate through the telescopic column 3 and the telescopic sleeve 4. Under the restriction of the guide cavity 11, the rotation of the adjusting disc 7, through the adjustment groove 8 with the arc-shaped inclined structure and the guide limit of the guide cavity 11, can drive the adjusting rod 9 and the positioning blocks 10 to move. The four positioning blocks 10 move in opposite directions to adjust the internal positioning space.

[0039] In one embodiment of the present invention, a guide groove 611 is provided on the inner wall of the buffer platform 61, and a guide head 612 is provided in the guide groove 611. The guide head 612 is fixed to the outside of the telescopic column 3. The guide head 612 slides in contact with the guide groove 611, and the guide groove 611 is distributed in a spiral structure. The initial position of the positioning rod 66 is located at the upper limit inside the base 65, and the base 65 is distributed at the four corners of the bottom of the positioning seat 5.

[0040] Under the vertical limiting action of the base 65 and the positioning rod 66, the rotation of the telescopic column 3, through the guide groove 611 and the guide head 612 of the spiral structure, drives the buffer platform 61 to move vertically, which in turn drives the bottom rod 62 to move vertically, adjusting the initial compression degree of the spring 64.

[0041] As one embodiment of the present invention, the assembly method includes the following steps:

[0042] S1: According to the fan blade specifications, the second motor 121 drives the screw 122 to rotate, adjusts the position of the rack 123, drives the toothed roller 124 to rotate, and the telescopic column 3 and telescopic sleeve 4 drive the adjustment plate 7 to rotate, and adjusts the position of the positioning block 10 in conjunction with the adjustment groove 8, adjustment rod 9 and guide cavity 11.

[0043] S2: The rotation of the telescopic column 3 drives the buffer platform 61 to move vertically through the guide groove 611 and the guide head 612, adjusting the position of the bottom rod 62 and adjusting the initial pressure of the spring 64;

[0044] S3: The fan blades, frame, and other components are assembled by sequentially placing them onto the positioning seat 5 using the feeding and pressing mechanisms. During the pressing process, the positioning seat 5 moves downward under pressure, causing the spring 64 to move downward as well, providing cushioning protection.

[0045] Working principle: First, according to the fan specifications, adjust the positions of the four positioning blocks 10 on each positioning seat 5. The second motor 121, in conjunction with the bevel gear group, drives multiple screws 122 to rotate. The screws 122 drive the rack 123 to move, and the rack 123 drives the toothed roller 124 to rotate. The toothed roller 124 drives the adjusting disc 7 to rotate through the telescopic column 3 and the telescopic sleeve 4. Under the restriction of the guide cavity 11, the rotation of the adjusting disc 7, through the arc-shaped inclined structure of the adjusting groove 8 and the guide limit of the guide cavity 11, can drive the adjusting rod 9 and the positioning blocks 10 to move. The four positioning blocks 10 move in opposite directions to adjust the internal positioning space. Furthermore, under the vertical limit of the base 65 and the positioning rod 66, the rotation of the telescopic column 3, through the spiral structure of the guide groove 611 and the guide head 612, drives the buffer platform 61 to move vertically, and then drives the bottom rod 62 to move vertically, adjusting the initial compression degree of the spring 64. That is, the larger the fan frame, the farther the position of the four positioning blocks 10, and the greater the initial compression degree of the spring 64.

[0046] After adjustment, the fan frame is placed between the four positioning blocks 10 and positioned by the concave area of ​​the positioning blocks 10. Then, the fan blades and their central positioning bushings, pins and other components are placed in the corresponding areas inside the fan frame by the feeding mechanism. The first motor 21 drives the assembly table 2 to rotate, and the pressing mechanism is used to assemble them one by one to complete the assembly of the fan blades. During pressing, the positioning seat 5 is moved downward by the force, and the spring 64 is compressed by the downward movement of the top rod 63. The spring 64 provides buffer force, which ensures that the pressing force is sufficient on the one hand, and avoids excessive pressing that will affect the assembly effect on the other hand. The feeding mechanism and the pressing mechanism adopt existing technology, which will not be described in detail here.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 automatic fan blade assembly device, comprising a mounting platform (1), wherein an assembly platform (2) is rotatably mounted on the mounting platform (1) via a first motor (21), and a feeding mechanism and a pressing mechanism are provided on the outside of the assembly platform (2); Its features are: It also includes a telescopic column (3), which is rotatably installed at the top edge of the assembly table (2). The top of the telescopic column (3) is fitted with a telescopic sleeve (4). The top of the telescopic sleeve (4) is fitted with a positioning seat (5) through a bearing. A buffer assembly is provided between the positioning seat (5) and the assembly table (2) to buffer and protect the positioning seat (5). An adjustment plate (7) is rotatably installed embedded in the positioning seat (5). The adjustment plate (7) is fixedly fitted on the telescopic sleeve (4). An adjustment groove (8) is opened on the top of the adjustment plate (7). An adjustment rod (9) is provided in the adjustment groove (8). The top of the adjustment rod (9) passes through the guide cavity (11) and a positioning block (10) is fixed thereon. The guide cavity (11) is opened on the upper end face of the positioning seat (5). Size adjustment component, which is set in the assembly table (2), adjusts the position of the positioning block (10) according to the specifications of the fan; The buffer assembly includes a buffer platform (61) and a base (65). The buffer platform (61) is disposed between the assembly platform (2) and the positioning seat (5). The buffer platform (61) is sleeved on the outside of the telescopic column (3). A bottom rod (62) is fixed to the top of the buffer platform (61). A top rod (63) is installed in the top cavity of the bottom rod (62) by means of a spring (64). The top of the top rod (63) is fixed to the bottom of the positioning seat (5). A base (65) is disposed on the outside of the buffer platform (61). A positioning rod (66) is slidably limited in the top cavity of the base (65). The positioning rod (66) is fixed to the bottom of the positioning seat (5). The size adjustment assembly includes a second motor (121), which is fixed to the bottom of the assembly platform (2). The output end of the second motor (121) is connected to a screw (122) through a bevel gear set. The screw (122) is installed in the assembly platform (2) and rotates laterally. The outer end of the screw (122) is threaded with a rack (123). The rack (123) slides in contact with the assembly platform (2). A toothed roller (124) is engaged on one side of the rack (123). The toothed roller (124) is embedded and rotated in the assembly platform (2). The top of the toothed roller (124) is connected to the telescopic column (3).

2. The automatic fan blade assembly equipment according to claim 1, characterized in that: The inner wall of the buffer platform (61) is provided with a guide groove (611), and a guide head (612) is provided in the guide groove (611). The guide head (612) is fixed on the outside of the telescopic column (3).

3. The automatic fan blade assembly equipment according to claim 2, characterized in that: The guide head (612) slides in contact with the guide groove (611), which is distributed in a spiral structure.

4. The automatic fan blade assembly equipment according to claim 1, characterized in that: The initial position of the positioning rod (66) is located at the upper limit inside the base (65), and the base (65) is distributed at the four corners of the bottom of the positioning seat (5).

5. The automatic fan blade assembly equipment according to claim 1, characterized in that: The adjusting rod (9) slides in the adjusting groove (8), which is distributed in an inclined arc shape on the adjusting plate (7). The adjusting rod (9) slides in the guide cavity (11), which is distributed opposite to each other on the positioning seat (5).

6. The automatic fan blade assembly equipment according to claim 1, characterized in that: The positioning blocks (10) are distributed at the top four corners of the positioning seat (5), and the positioning blocks (10) have notches on their inner sides.

7. An assembly method for an automatic fan blade assembly device, applicable to the automatic fan blade assembly device according to any one of claims 1-6, characterized in that: The assembly method includes the following steps: S1: According to the fan blade specifications, the screw (122) is driven to rotate by the second motor (121), the position of the rack (123) is adjusted, the toothed roller (124) is driven to rotate, and the adjustment plate (7) is driven to rotate by the telescopic column (3) and the telescopic sleeve (4), and the position of the positioning block (10) is adjusted in conjunction with the adjustment groove (8), the adjustment rod (9) and the guide cavity (11); S2: The rotation of the telescopic column (3) drives the buffer platform (61) to move vertically through the guide groove (611) and guide head (612), adjusts the position of the bottom rod (62), and adjusts the initial pressure of the spring (64); S3: The fan blades and other components such as the frame are placed on the positioning seat (5) in sequence through the feeding mechanism and the pressing mechanism for assembly. During the pressing process, the positioning seat (5) is moved down by the force, which drives the spring (64) to move down, and the spring (64) provides buffer protection.

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