Segmented positioning assembly screw locking jig

Abstract

The utility model provides a kind of segmented positioning assembly screw lock fixture, including fixed subassembly, the fixed subassembly includes support plate, stepper motor, threaded rod, sliding block, lifting platform, connecting plate and positioning pin;The bottom of the support plate is installed with stepper motor, the output shaft of the stepper motor is fixedly connected with one end of threaded rod, the threaded rod is rotatably connected in the top of support plate, the outer lateral wall of the threaded rod is connected with sliding block by thread connection.The utility model can simultaneously position product mechanism component and PCBA independently and accurately by using segmented positioning structure. By designing special positioning module according to the different structural characteristics of mechanism component and PCBA, high-precision matching is achieved during assembly, effectively avoiding the problem of component collision damage caused by positioning deviation, while improving assembly consistency and product yield. Through the dynamic adaptation of positioning mode and locking process by the liftable positioning mechanism, the operation flexibility is significantly improved.

Description

Technical Field

[0001] This utility model relates to a jig, and more particularly to a segmented positioning assembly screw fastening jig, belonging to the field of jig technology. Background Technology

[0002] Fixtures, also known as tooling jigs, are indispensable tools in industrial manufacturing. They are primarily used to assist in machining, assembly, and inspection processes, ensuring the stability and precision of workpieces during processing. Fixtures are typically custom-designed based on the shape, size, and processing requirements of specific products, enabling precise positioning and secure clamping of workpieces. This effectively prevents vibration and misalignment during processing, thereby improving product quality and production efficiency. Furthermore, fixtures are characterized by rapid changeover and reusability, adapting to multi-variety, small-batch production models and reducing production costs. In modern automated production lines, fixtures work closely with advanced equipment such as robots and CNC machine tools to achieve efficient and precise automated machining.

[0003] In current technological practices, due to certain limitations in product design, the lack of specialized positioning designs for PCBAs (Printed Circuit Board Assemblies) in mechanical components leads to the inability to achieve precise positioning and stable fit between the PCBA and the mechanical components. This deficiency causes multiple problems in the production process: First, during the PCB placement process, the lack of an effective guiding mechanism makes the operation difficult to control, and the PCBA is prone to collisions with the mechanical components, resulting in component damage and affecting product yield; second, during the assembly and fastening process, the PCB is prone to rotation under the torque of the electric screwdriver, causing misalignment of the fastening holes and hindering the smooth progress of subsequent operations; finally, due to the limitations of existing designs, the product fastening operation needs to be completed in two stations, which not only increases the complexity of the production process but also reduces overall production efficiency. Therefore, a segmented positioning assembly screw fastening fixture is proposed. Utility Model Content

[0004] In view of this, the present invention provides a segmented positioning assembly screw fastening fixture to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: a segmented positioning assembly screw fastening fixture includes a fixing component, wherein the fixing component includes a support plate, a stepper motor, a threaded rod, a slider, a lifting platform, a connecting plate and a positioning pin;

[0006] A stepper motor is installed at the bottom of the support plate. The output shaft of the stepper motor is fixedly connected to one end of a threaded rod. The threaded rod is rotatably connected to the top of the support plate. A slider is threadedly connected to the outer wall of the threaded rod. A lifting platform is fixedly connected to the top of the slider. A connecting plate is symmetrically fixedly connected to the bottom of the lifting platform. Three positioning pins are fixedly connected to the top of the lifting platform.

[0007] A further preferred embodiment: the fixing component is externally provided with a main body component, the main body component including a housing and a worktable;

[0008] A worktable is fixedly connected to the top of the housing.

[0009] A further preferred embodiment: the inner sidewall of the housing is symmetrically fixedly connected with a fixing plate, a guide rail is installed on one side of the fixing plate, the support plate is fixedly connected to one side of the fixing plate, and the connecting plate is slidably connected to one side of the guide rail.

[0010] A further preferred embodiment: the top of the workbench is symmetrically and fixedly connected with limit blocks.

[0011] A further preferred embodiment: a PCBA body is provided on the top of the workbench, a positioning hole is provided inside the PCBA body, the positioning hole is arranged opposite to the positioning pin, and a pressure plate is fixedly connected to the top of the PCBA body by bolts.

[0012] A further preferred embodiment: a start / stop switch is installed on the front surface of the housing.

[0013] A further preferred embodiment: a power switch and a power interface are mounted on the rear surface of the housing.

[0014] A further preferred embodiment: the lifting platform has symmetrical clearance grooves on both sides.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model employs a segmented positioning structure, enabling independent and precise positioning of both product components and PCBA simultaneously. By designing dedicated positioning modules tailored to the different structural features of the components and PCBA, high-precision matching is ensured during assembly, preventing component collision damage due to positioning deviations, and simultaneously improving assembly consistency and product yield.

[0017] II. This utility model achieves dynamic adaptation between the positioning method and the locking process through a height-adjustable positioning mechanism. When locking through holes is not required, the positioning mechanism rises to the working position and completes the precise fixation of the PCBA through the edge or feature surface, avoiding mechanical damage to the board surface. When hole locking is required, the positioning mechanism automatically descends to a safe height, fully exposing the locking holes, ensuring the operating space of the electric screwdriver. At the same time, the rigidity of the mechanism maintains the overall stability of the PCBA, preventing hole displacement caused by torque, thus decoupling the positioning and locking processes and improving operational flexibility.

[0018] Third, this utility model integrates the assembly and locking operation that originally required two workstations into a single-workstation continuous operation through the coordinated optimization of the positioning mechanism and the locking process. Operators can complete the entire process of PCBA placement, positioning and locking in the same workstation in sequence, reducing the number of material turnovers and waiting time, and reducing the cost of labor and time input.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the present invention;

[0022] Figure 2 This is a structural diagram showing the dismantling of this utility model;

[0023] Figure 3 This is a structural diagram of the support plate of this utility model;

[0024] Figure 4 This is a structural diagram of the fixing plate of this utility model.

[0025] Reference numerals: 10. Main body component; 11. Housing; 12. Start / stop switch; 13. Worktable; 14. Limit block; 15. Power switch; 16. Power interface; 20. Fixing component; 21. Support plate; 22. Stepper motor; 23. Threaded rod; 24. Slider; 25. Lifting platform; 26. Connecting plate; 27. Positioning pin; 28. Fixing plate; 29. ​​Guide rail; 210. PCBA body; 211. Positioning hole; 212. Pressure plate. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1-4 As shown, this utility model embodiment provides a segmented positioning assembly screw fastening fixture, including a fixing component 20, which includes a support plate 21, a stepper motor 22, a threaded rod 23, a slider 24, a lifting platform 25, a connecting plate 26, and a positioning pin 27.

[0029] A stepper motor 22 is installed at the bottom of the support plate 21. The output shaft of the stepper motor 22 is fixedly connected to one end of the threaded rod 23. The threaded rod 23 is rotatably connected to the top of the support plate 21. A slider 24 is threadedly connected to the outer wall of the threaded rod 23. A lifting platform 25 is fixedly connected to the top of the slider 24. A connecting plate 26 is symmetrically fixedly connected to the bottom of the lifting platform 25. Three positioning pins 27 are fixedly connected to the top of the lifting platform 25. The stepper motor 22 is controlled by the start / stop switch 12 to drive the threaded rod 23 to rotate. The threaded engagement causes the slider 24 to move upward, which in turn causes the lifting platform 25 and the positioning pins 27 to move upward synchronously. This causes the positioning pins 27 to protrude from the surface of the workbench 13 and enter the positioning hole 211 in half of the PCBA body 210. The pressure plate 212 is lowered, and the screws in the remaining positioning holes 211 without positioning pins 27 are tightened with an electric screwdriver. Then, the stepper motor 22 and the positioning pins 27 are reset, and the screws in the remaining positioning holes 211 are tightened with an electric screwdriver to complete the positioning and installation of the PCBA body 210.

[0030] In this embodiment, specifically: a main body component 10 is provided on the outside of the fixing component 20, and the main body component 10 includes a housing 11 and a worktable 13;

[0031] A workbench 13 is fixedly connected to the top of the housing 11, and the PCBA body 210 is placed on the workbench 13.

[0032] In this embodiment, specifically: a fixing plate 28 is symmetrically fixedly connected to the inner sidewall of the housing 11, a guide rail 29 is installed on one side of the fixing plate 28, a support plate 21 is fixedly connected to one side of the fixing plate 28, and a connecting plate 26 is slidably connected to one side of the guide rail 29. The guide rail 29 plays a guiding and assisting role in the movement of the connecting plate 26, which can improve the stability of the connecting plate 26 during the movement process.

[0033] In this embodiment, specifically: the top of the workbench 13 is symmetrically and fixedly connected with a limiting block 14, which is used to assist in placing the PCBA body 210.

[0034] In this embodiment, specifically: a PCBA body 210 is provided on the top of the workbench 13, and a positioning hole 211 is provided inside the PCBA body 210. The positioning hole 211 is positioned opposite to the positioning pin 27. A pressure plate 212 is fixedly connected to the top of the PCBA body 210 by bolts. The pressure plate 212 is rotatably connected to the workbench 13 by a fixing seat. The PCBA body 210 is pressed and fixed by the pressure plate 212.

[0035] In this embodiment, specifically: a start / stop switch 12 is installed on the front surface of the housing 11, and a forward / reverse adjustment button is also installed on the front surface of the housing 11 to adjust the forward / reverse state of the stepper motor 22.

[0036] In this embodiment, specifically: a power switch 15 and a power interface 16 are installed on the rear surface of the housing 11. The power switch 15 and the power interface 16 are used to control the power status of the fixture and connect to external power supply equipment, respectively.

[0037] In this embodiment, specifically: the lifting platform 25 has symmetrical clearance grooves on both sides, which are used to make way for the movement of the connecting plate 26.

[0038] When this utility model is in operation: the PCBA body 210 is placed on the workbench 13, the power switch 15 is turned on, and the stepper motor 22 is controlled by the start / stop switch 12 to work, driving the threaded rod 23 to rotate. The threaded engagement causes the slider 24 to move upward, driving the lifting platform 25 and the positioning pin 27 to move upward synchronously, so that the positioning pin 27 protrudes from the surface of the workbench 13 and enters half of the positioning hole 211 on the PCBA body 210. The pressure plate 212 is lowered, and the screws in the remaining positioning holes 211 without positioning pins 27 are tightened with an electric screwdriver. Then the stepper motor 22 and the positioning pin 27 are reset, and the remaining screws in the positioning holes 211 are tightened with an electric screwdriver, completing the positioning and installation of the PCBA body 210.

[0039] By employing a segmented positioning structure, both the product components and the PCBA can be positioned independently and precisely simultaneously. Dedicated positioning modules are designed for the different structural features of the components and PCBA, ensuring high-precision matching during assembly. This avoids component collision damage caused by positioning deviations, while simultaneously improving assembly consistency and product yield.

[0040] The positioning mechanism dynamically adapts the positioning method to the locking process. When locking through holes is not required, the positioning mechanism rises to the working position and accurately fixes the PCBA through the edge or feature surface, avoiding mechanical damage to the board surface. When hole locking is required, the positioning mechanism automatically descends to a safe height, fully exposing the locking holes, ensuring the operating space for the electric screwdriver. At the same time, the rigidity of the mechanism maintains the overall stability of the PCBA, preventing hole displacement caused by torque. This decouples the positioning and locking processes, improving operational flexibility.

[0041] By optimizing the positioning mechanism and the locking process, the assembly and locking operation that originally required two workstations is integrated into a single-workstation continuous operation. Operators can complete the entire process of PCBA placement, positioning, and locking in the same workstation, reducing material turnover and waiting time, and lowering labor costs.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A segmented positioning and assembly screw fastening fixture, comprising a fixing component (20), characterized in that: The fixing component (20) includes a support plate (21), a stepper motor (22), a threaded rod (23), a slider (24), a lifting platform (25), a connecting plate (26), and a positioning pin (27). A stepper motor (22) is installed at the bottom of the support plate (21). The output shaft of the stepper motor (22) is fixedly connected to one end of the threaded rod (23). The threaded rod (23) is rotatably connected to the top of the support plate (21). A slider (24) is threadedly connected to the outer wall of the threaded rod (23). A lifting platform (25) is fixedly connected to the top of the slider (24). A connecting plate (26) is symmetrically fixedly connected to the bottom of the lifting platform (25). Three positioning pins (27) are fixedly connected to the top of the lifting platform (25).

2. The segmented positioning and assembly screw fastening fixture according to claim 1, characterized in that: The fixed component (20) is provided with a main component (10) on its exterior. The main component (10) includes a housing (11) and a worktable (13). A workbench (13) is fixedly connected to the top of the housing (11).

3. The segmented positioning and assembly screw fastening fixture according to claim 2, characterized in that: The inner wall of the housing (11) is symmetrically fixed with a fixing plate (28), a guide rail (29) is installed on one side of the fixing plate (28), the support plate (21) is fixedly connected to one side of the fixing plate (28), and the connecting plate (26) is slidably connected to one side of the guide rail (29).

4. A segmented positioning and assembly screw fastening fixture according to claim 2, characterized in that: Limiting blocks (14) are symmetrically fixedly connected to the top of the workbench (13).

5. A segmented positioning and assembly screw fastening fixture according to claim 2, characterized in that: The top of the workbench (13) is provided with a PCBA body (210), and the PCBA body (210) has a positioning hole (211) inside. The positioning hole (211) is opposite to the positioning pin (27). The top of the PCBA body (210) is fixedly connected with a pressure plate (212) by bolts.

6. A segmented positioning and assembly screw fastening fixture according to claim 2, characterized in that: A start / stop switch (12) is installed on the front surface of the housing (11).

7. A segmented positioning and assembly screw fastening fixture according to claim 2, characterized in that: A power switch (15) and a power interface (16) are mounted on the rear surface of the housing (11).

8. A segmented positioning and assembly screw fastening fixture according to claim 1, characterized in that: The lifting platform (25) has symmetrical clearance grooves on both sides.

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