Fan positioning and assembling jig

Abstract

A fan positioning and assembling jig relates to the technical field of fan production, is used for positioning, combining and assembling a fan and a side metal plate, and comprises a positioning clamp, the positioning clamp is used for positioning and clamping the combined fan and side metal plate, a plurality of groups of screw deviation rectifying assemblies are arranged on the positioning clamp, and the screw deviation rectifying assemblies are arranged on the positioning clamp. And the angle correction action is carried out on the screws with the feeding angle deviation. And through the design of the screw deviation rectifying assembly and the spring positioning pin, the assembling process is more automatic and intelligent, and the device is suitable for large-scale production. Meanwhile, the jig is simple in structure and easy to maintain, and powerful guarantee is provided for rapid and accurate assembly of the fan.

Description

Technical Field

[0001] This utility model relates to the field of fan manufacturing technology, specifically to a fan positioning and assembly fixture. Background Technology

[0002] With the development of modern industry, cooling fans, as an important component of electronic equipment, are receiving increasing attention for their manufacturing efficiency and product quality. In the assembly process of cooling fans, automatic screw tightening equipment is widely used due to its high efficiency and precision. However, in practical applications, automatic screw tightening equipment still faces some technical challenges.

[0003] While automated screw tightening equipment plays a crucial role in the automated assembly of cooling fans, several shortcomings remain: the screw styles used in industrial designs vary widely, as do the tightening environments. This places extremely high demands on the stability of non-standard designed equipment, requiring a very low failure rate. For example, screws with flat washers and spring washers are difficult to ensure are perpendicular after discharge, and may leak after suction, leading to tightening problems. When screws are not discharged perpendicularly, the robotic arm cannot accurately align with the hole position when moving to the material tightening position. Tightening may damage the product, causing the screw to crush it, thus affecting production line efficiency and product quality. For long screws, due to their length, the bit may experience axial runout during rotation tightening. The suction nozzle cannot be fully positioned with semi-circular pan head screws, preventing the screw from being smoothly inserted into the hole. Utility Model Content

[0004] This utility model proposes a fan positioning assembly fixture to solve the technical problems pointed out in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A fan positioning and assembly fixture is provided. The fixture is used to position and assemble a fan and a side sheet metal. The fixture includes a positioning clamp that positions and holds the assembled fan and side sheet metal. The positioning clamp is provided with several sets of screw correction components to perform angle correction on screws with feeding angle deviation.

[0007] Furthermore, the positioning fixture includes a base, a pair of support members vertically arranged on one side of the base, and an upper clamping plate rotatably arranged between the two support members. The screw correction assembly is arranged on the upper surface of the upper clamping plate, and the screw correction assembly is arranged vertically and vertically corresponding to the screw mounting hole position of the fan.

[0008] Furthermore, the upper clamping plate is provided with a plurality of sliding grooves along its width direction, the sliding grooves being vertically corresponding to the screw mounting holes of the fan, and the screw correction assembly being correspondingly disposed within the sliding grooves; the screw correction assembly includes a central groove block fixed in the middle of the sliding groove, the central groove block dividing the sliding groove into front and rear channels, guide tongues being slidably disposed in opposite directions within the front and rear channels, a return spring being disposed between the guide tongues and the central groove block, and a guide pressure plate being fixedly disposed on the top of the central groove block.

[0009] Furthermore, a wedge-shaped inclined surface is provided on the outer side of the guide tongue, and an open half-hole for the guide screw is vertically provided on the wedge-shaped inclined surface. A correction arc surface communicating with the open half-hole is provided on the wedge-shaped inclined surface.

[0010] Furthermore, the outer side of the slide has a first opening that allows the guide tongue to extend; the inner side of the slide has a second opening that is vertically opposite to the screw mounting hole of the fan. Under the action of the return spring, the wedge-shaped part of the guide tongue on one side extends out of the first opening, and the guide tongue on the other side is located directly above the opening, and the open half-holes of the two guide tongues are vertically opposite to the screw mounting hole of the fan.

[0011] Furthermore, travel blocks are provided on both sides of the slide to limit the sliding stroke of the guide tongue.

[0012] Furthermore, the base has several spring positioning pins vertically upward at its bottom. These spring positioning pins correspond to the screw mounting holes of the fan. The pin shafts of the spring positioning pins extend into the screw mounting holes of the fan. When the screws are driven in, the pin shafts of the spring positioning pins are compressed downward. After all the screws are installed, the pressure of the upper clamping plate is released, and the spring positioning pins automatically spring open the product.

[0013] Furthermore, the side sheet metal has an L-shaped structure, the fan is fixed to one side of the side sheet metal with screws, the base shape matches the side sheet metal, and the base is provided with a limit block.

[0014] Furthermore, the bottom of the upper clamping plate is provided with several locking blocks for clamping and positioning the fan.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention uses a positioning fixture to securely clamp the fan and side sheet metal, and a screw correction component to automatically correct screws with feeding angle deviations, ensuring accurate screw insertion into the screw mounting holes. Simultaneously, a spring-loaded locating pin provides positioning and fixation during screw installation, automatically springing open to release the product after installation. The fixture also includes a travel stop block to limit the sliding travel of the guide tongue, and a locking block to enhance the fan's positioning stability. This fixture significantly improves the assembly accuracy and efficiency of the fan and side sheet metal, reducing the difficulty and cost of manual operation. The design of the screw correction component and spring-loaded locating pin makes the assembly process more automated and intelligent, suitable for mass production. Furthermore, the fixture's simple structure and ease of maintenance provide strong support for the rapid and accurate assembly of the fan. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is an exploded structural diagram of the fixture of this utility model;

[0022] Figure 5 This is a schematic diagram of the screw alignment component of this utility model.

[0023] Figure 6 This is a schematic diagram of the fixture of this utility model from another angle. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] like Figure 1-6 As shown, a fan positioning and assembly fixture 3 is used for positioning and assembling a fan 1 and a side sheet metal 2. The fixture 3 includes a positioning clamp that positions and clamps the assembled fan 1 and side sheet metal 2. The positioning clamp is provided with several sets of screw correction components 34 to perform angle correction actions on screws with feeding angle deviations.

[0029] This utility model fixture 3 is mainly used for positioning and assembling the fan 1 and the side sheet metal 2. The fixture is equipped with a positioning clamp that can securely hold the assembled fan and side sheet metal. Several sets of screw correction components 34 are provided on the positioning clamp. When the screw is fed into the assembly position, if there is a deviation in the screw's feeding angle, the screw correction components will activate, correcting the screw's angle and ensuring that the screw accurately enters the screw mounting holes of the fan and side sheet metal.

[0030] Specifically, as shown in the figure, the positioning fixture includes a base 31, a pair of support members 32 vertically arranged on one side of the base 31, and an upper clamping plate 33 rotatably arranged between the two support members 32. The screw correction assembly 34 is arranged on the upper surface of the upper clamping plate 33, and the screw correction assembly 34 is vertically corresponding to the screw mounting hole position of the fan 1. The upper clamping plate 33 is provided with a plurality of sliding grooves 331 along its width direction. The sliding grooves 331 are vertically corresponding to the screw mounting hole position of the fan 1. The screw correction assembly 34 is correspondingly arranged in the sliding grooves 331. The screw correction assembly 34 includes a central groove block 341 fixed in the middle of the sliding groove 331. The central groove block 341 divides the sliding groove 331 into front and rear channels. Guide tongues 343 are slidably arranged in opposite directions in the front and rear channels. A return spring 344 is arranged between the guide tongue 343 and the central groove block 341. A guide pressure plate 342 is fixedly arranged on the top of the central groove block 341. The guide tongue 343 has a wedge-shaped inclined surface on its outer side, and an open semi-hole 345 for guiding the screw is vertically arranged on the wedge-shaped inclined surface. A correction arc surface 346 communicating with the open semi-hole 345 is also provided on the wedge-shaped inclined surface. The slide groove 331 has a first opening on its outer side that allows the guide tongue 343 to extend out; the slide groove 331 has a second opening on its inner side that is vertically opposite to the screw mounting hole of the fan 1. Under the action of the return spring 344, the wedge-shaped part of one side of the guide tongue 343 extends out of the first opening, and the guide tongue 343 on the other side is located directly above the opening, with the open semi-holes 345 of the two guide tongues 343 vertically opposite to the screw mounting hole of the fan 1.

[0031] In practical use, before the screw is inserted, the upper clamp 33 is securely mounted on the base 31 via the support 32, forming the main structure of the positioning clamp. The guide tongue 343 in the screw correction assembly 34 is in a preset position under the action of the return spring 344. Specifically, the wedge-shaped portion of one guide tongue 343 slightly protrudes from the first opening (outer opening) of the slide groove 331, while the guide tongue 343 on the other side is positioned directly above the second opening (opposite to the fan screw mounting hole) inside the slide groove 331. At this time, the open semi-holes 345 of both guide tongues 343 are aligned with the screw mounting hole of the fan 1, preparing for the screw to enter. When the screw is fed into the screw mounting hole directly above it via an automatic feeding mechanism or other means, if there is a deviation in the screw's feeding angle, the screw will contact the wedge-shaped inclined surface of the guide tongue 343. Due to the design of the wedge-shaped inclined surface, the screw will be subjected to an inward force, which will push the guide tongue 343 to slide within the slide groove 331. During the sliding process, the screw gradually adjusts its angle along the guide of the open half-hole 345 and the corrective arc surface 346 until it is fully aligned with the screw mounting hole of the fan. The design of the corrective arc surface 346 further ensures a smooth transition of the screw during angle adjustment, avoiding jamming or damage. Once the screw angle is fully corrected and aligned with the screw mounting hole, the screw can continue to move downwards until it is installed in the screw mounting holes of the fan 1 and the side sheet metal 2. At this point, due to the action of the return spring 344, the guide tongue 343 quickly returns to its initial position, preparing for the insertion of the next screw.

[0032] Specifically, as shown in the figure, travel blocks 332 are provided on both sides of the slide groove 331 to limit the sliding stroke of the guide tongue 343.

[0033] Specifically, as shown in the figure, the bottom of the base 31 is vertically arranged with several spring positioning pins 35. The spring positioning pins 35 correspond to the screw mounting holes of the fan 1. The pin shaft of the spring positioning pin 35 moves into the screw mounting hole of the fan 1. When the screw is driven in, the pin shaft of the spring positioning pin 35 is compressed downward. After all the screws are installed, the pressure of the upper clamping plate is released, and the spring positioning pin 35 automatically springs open the product.

[0034] In practical use, several spring-loaded positioning pins 35 are vertically arranged at the bottom of the base 31, each corresponding to a screw mounting hole on the fan 1. Before the fan 1 is placed in the base, the pins of the spring-loaded positioning pins 35 are in an uncompressed state, ensuring that when the fan 1 is placed on the base 31, the pins can easily enter the screw mounting holes, thus positioning the fan 1. At this time, the upper clamping plate 33 does not apply pressure to the spring-loaded positioning pins 35. The fan 1 is placed on the base 31, ensuring that its screw mounting holes correspond one-to-one with the spring-loaded positioning pins 35. Due to the elasticity of the pins of the spring-loaded positioning pins 35, when the fan 1 is placed on the base, the pins will automatically enter the screw mounting holes, achieving initial positioning of the fan. When the screw is inserted and ready for installation, it first passes through the screw alignment assembly 34 on the upper clamping plate 33, and then aligns with the screw mounting hole of the fan 1. As the screw is gradually screwed in, the pins of the spring-loaded positioning pins 35 are subjected to downward pressure and begin to compress. During this process, the elastic force of the spring locating pin 35 provides a reverse resistance, ensuring that the screw can be stably screwed into the screw mounting hole. Once all screws are installed, the pin of the spring locating pin 35 is in a compressed state, at which point the fan 1 is securely fixed to the base 31. After all screws are installed, the pressure on the upper clamping plate 33 can be released (the upper part of the device is equipped with a cylinder that acts on the upper clamping plate 33, clamping it downwards; the pressure on the upper clamping plate 33 is released by relieving the pressure through the cylinder). Once the pressure on the upper clamping plate 33 is released, the pin of the spring locating pin 35 will automatically spring open under the action of the spring force, thereby releasing the fan 1. At this point, the fan 1 has completed its assembly with the side sheet metal 2 and can be removed from the fixture.

[0035] Specifically, as shown in the figure, the side sheet metal 2 has an L-shaped structure, and the fan 1 is fixed to one side of the side sheet metal 2 with screws. The base 31 is shaped to match the side sheet metal 2, and the base 31 is provided with a limiting block 311. The bottom of the upper clamping plate 33 is provided with several locking blocks 333 for clamping and positioning the fan 1.

[0036] This invention uses a positioning fixture to securely clamp the fan and side sheet metal, and a screw correction component to automatically correct screws with feeding angle deviations, ensuring accurate screw insertion into the screw mounting holes. Simultaneously, a spring-loaded locating pin provides positioning and fixation during screw installation, automatically springing open to release the product after installation. The fixture also includes a travel stop block to limit the sliding travel of the guide tongue, and a locking block to enhance the fan's positioning stability. This fixture significantly improves the assembly accuracy and efficiency of the fan and side sheet metal, reducing the difficulty and cost of manual operation. The design of the screw correction component and spring-loaded locating pin makes the assembly process more automated and intelligent, suitable for mass production. Furthermore, the fixture's simple structure and ease of maintenance provide strong support for the rapid and accurate assembly of the fan.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fan positioning and assembly fixture, the fixture being used for positioning and assembling a fan and side sheet metal, characterized in that, The fixture includes a positioning clamp, which positions and holds the assembled fan and side sheet metal. The positioning clamp is equipped with several sets of screw correction components to perform angle correction on screws with feeding angle deviation. The positioning fixture includes a base, a pair of support members vertically arranged on one side of the base, and an upper clamping plate rotatably arranged between the two support members. The screw correction assembly is arranged on the upper surface of the upper clamping plate, and the screw correction assembly is arranged vertically and vertically corresponding to the screw mounting hole position of the fan. The upper clamp plate is provided with a plurality of sliding grooves along its width direction. The sliding grooves are arranged vertically and vertically corresponding to the screw mounting holes of the fan. The screw correction assembly is correspondingly arranged in the sliding groove. The screw correction assembly includes a central groove block fixed in the middle of the sliding groove. The central groove block divides the sliding groove into front and rear channels. Guide tongues are slidably arranged in opposite directions in the front and rear channels. A return spring is provided between the guide tongues and the central groove block. A guide pressure plate is fixedly provided on the top of the central groove block. The outer side of the slide has a first opening that allows the guide tongue to extend; the inner side of the slide has a second opening that is vertically opposite to the screw mounting hole of the fan. Under the action of the return spring, the wedge-shaped part of the guide tongue on one side extends out of the first opening, and the guide tongue on the other side is located directly above the opening, and the open half-holes of the two guide tongues are vertically opposite to the screw mounting hole of the fan. The base has several spring positioning pins vertically upward at its bottom. The spring positioning pins correspond to the screw mounting holes of the fan. The pin shaft of the spring positioning pin moves into the screw mounting hole of the fan. When the screw is driven in, the pin shaft of the spring positioning pin is compressed downward. After all the screws are installed, the pressure of the upper clamping plate is released, and the spring positioning pin automatically springs open the product.

2. The fan positioning assembly fixture according to claim 1, characterized in that, The outer side of the guide tongue is provided with a wedge-shaped inclined surface, and an open half-hole for the guide screw is vertically provided on the wedge-shaped inclined surface. A correction arc surface communicating with the open half-hole is provided on the wedge-shaped inclined surface.

3. The fan positioning and assembly fixture according to claim 1, characterized in that, The slide groove is provided with travel blocks on both sides to limit the sliding stroke of the guide tongue.

4. A fan positioning and assembly fixture according to claim 1, characterized in that, The side sheet metal has an L-shaped structure. The fan is fixed to one side of the side sheet metal with screws. The shape of the base matches the side sheet metal, and the base is provided with a limit block.

5. A fan positioning assembly fixture according to claim 4, characterized in that, The bottom of the upper clamping plate is provided with several locking blocks for clamping and positioning the fan.

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