Automatic locking device for screws and nuts

Abstract

The utility model discloses an automatic locking device for screws and nuts, which relates to the technical field of mechanical connectors and comprises a base, two sides of the base are fixedly connected with support rods, the two support rods are fixedly connected with a support plate, the support plate is fixedly connected with a moving module, and the moving module is slidably provided with a fixing plate. A fixing block is fixedly connected to the fixing plate, a hydraulic cylinder is fixedly connected to the fixing block, a telescopic rod of the hydraulic cylinder penetrates through the fixing block, a rotary locking mechanism is fixedly connected to the bottom of the telescopic rod of the hydraulic cylinder, a guide plate is fixedly connected to the bottom of the fixing plate, and the rotary locking mechanism is slidably arranged on the guide plate. According to the device, rapid and accurate locking of screws and nuts is achieved, manual operation is remarkably reduced, and the production efficiency and the product quality are improved. And the built-in magnetic element is suitable for fasteners of various specifications, so that the universality and the flexibility are enhanced. Design is simplified, maintenance cost is reduced, and production line integration is facilitated. And continuity and efficiency of assembly line work are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connector technology, specifically an automatic screw and nut locking device. Background Technology

[0002] While existing automatic locking devices can improve work efficiency and consistency to some extent, they still have some shortcomings. Some devices lack operational precision, leading to inaccurate screw and nut installation; others are not fast enough for high-volume production, failing to meet the needs of efficient manufacturing. Furthermore, some automatic locking devices have complex structures, high maintenance costs, and are difficult to integrate into existing production lines.

[0003] Automated assembly lines are becoming increasingly widespread in industries such as automobile manufacturing and electronic equipment assembly. Tightening screws and nuts is a crucial step in the assembly process, directly impacting product quality and safety. Traditional screw and nut tightening typically relies on manual operation or semi-automatic equipment, which is not only inefficient but also prone to human error, such as tightening screws too loosely or too tightly, affecting the quality of the final product. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic screw and nut locking device that, through high automation, flexibility, and precision, can effectively solve the problems existing in the prior art and address the issues raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic screw and nut locking device includes a base, support rods fixedly connected to both sides of the base, support plates fixedly connected to the two support rods, a movable module fixedly connected to the support plates, a fixed plate slidably mounted on the movable module, a fixed block fixedly connected to the fixed plate, a hydraulic cylinder fixedly connected to the fixed block, a telescopic rod of the hydraulic cylinder passing through the fixed block, a rotary locking mechanism fixedly connected to the bottom of the telescopic rod of the hydraulic cylinder, a guide plate fixedly connected to the bottom of the fixed plate, the rotary locking mechanism slidably mounted on the guide plate, a retainer fixedly connected to the upper center of the base, a rotating disk rotatably mounted on the base, the rotating disk being located around the retainer, and multiple screw placement blocks mounted on the rotating disk.

[0007] The rotary locking mechanism includes a drive motor, a guide sleeve fixedly connected to the bottom of the drive motor, a main shaft fixedly connected to the output shaft of the drive motor, the main shaft being disposed inside the guide sleeve, a nut opening fixedly connected to the bottom of the main shaft, a magnetic element being disposed inside the nut opening, and an L-shaped positioning plate fixedly connected to the outside of the guide sleeve, the L-shaped positioning plate being slidably disposed on the guide plate.

[0008] In a preferred embodiment, the upper part of the L-shaped positioning plate is fixedly connected to the telescopic rod of the hydraulic cylinder, and the L-shaped positioning plate is slidably mounted on the guide plate.

[0009] In a preferred embodiment, the mobile module includes a module body, a servo motor is fixedly connected to one side of the module body, a guide rail is provided on the inner side of the module body, a slide block is slidably provided on the guide rail, a lead screw is provided at the center of the inner side of the module body, the lead screw is connected to the slide block by a thread, and the servo motor drives the lead screw.

[0010] In a preferred embodiment, the fixing plate is fixedly connected to the slide.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Improve work efficiency: Through automated design, the combination of moving modules and rotary locking mechanisms can quickly position and lock screws and nuts, greatly reducing manual operation time and improving production efficiency.

[0013] 2. Enhanced working precision: The position of the fixing plate is controlled by a servo motor-driven lead screw, and a hydraulic cylinder is used in conjunction with the drive motor to achieve precise locking action, ensuring that each screw and nut can be installed accurately and flawlessly, thus improving product quality.

[0014] 3. Adaptable to various specifications: Because the nut opening is equipped with a magnetic element, it can attract metal screws or nuts of different sizes, making the device suitable for fasteners of various specifications, increasing the versatility and flexibility of the equipment.

[0015] 4. Reduced maintenance costs: Compared with the complex structure of traditional automatic locking devices, this utility model simplifies the structural design, reduces maintenance difficulty and costs, and is also easy to integrate into existing production lines, making it highly adaptable.

[0016] 5. Optimized production process: The rotary table allows multiple screws to be placed continuously, so that the next screw can be prepared while one screw is being tightened, which further optimizes the production process and improves the continuity and efficiency of the assembly line operation.

[0017] In summary, through automation and structural optimization, the rapid and precise tightening of screws and nuts is achieved, significantly reducing manual operation time and improving production efficiency and product quality. The built-in magnetic components support fasteners of various specifications, enhancing the equipment's versatility and flexibility. The simplified design reduces maintenance costs and difficulty, facilitating production line integration. The use of a rotary table further optimizes the production process, improving the continuity and efficiency of assembly line operations. Attached Figure Description

[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 mobile module structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the novel rotary locking mechanism.

[0021] In the diagram: 1. Base, 2. Support rod, 3. Support plate, 4. Moving module, 41. Module body, 42. Servo motor, 43. Guide rail, 44. Slide, 45. Lead screw, 5. Fixing plate, 6. Fixing block, 7. Hydraulic cylinder, 8. Rotary locking mechanism, 81. Drive motor, 82. Guide sleeve, 83. Main shaft, 84. Nut hole, 85. Magnetic component, 86. L-shaped positioning plate, 9. Guide plate, 10. Fixer, 11. Rotary disk, 12. Placement block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 An automatic screw and nut locking device includes a base 1, with support rods 2 fixedly connected to both sides of the base 1, support plates 3 fixedly connected to the two support rods 2, a movable module 4 fixedly connected to the support plates 3, a fixed plate 5 slidably arranged on the movable module 4, a fixed block 6 fixedly connected to the fixed plate 5, a hydraulic cylinder 7 fixedly connected to the fixed block 6, a telescopic rod of the hydraulic cylinder 7 passing through the fixed block 6, a rotary locking mechanism 8 fixedly connected to the bottom of the telescopic rod of the hydraulic cylinder 7, a guide plate 9 fixedly connected to the bottom of the fixed plate 5, the rotary locking mechanism 8 slidably arranged on the guide plate 9, a retainer 10 fixedly connected to the upper center of the base 1, a rotating disk 11 rotatably arranged on the base 1, the rotating disk 11 being located around the retainer 10, and multiple screw placement blocks 12 arranged on the rotating disk 11.

[0024] The rotary locking mechanism 8 includes a drive motor 81, a guide sleeve 82 fixedly connected to the bottom of the drive motor 81, a main shaft 83 fixedly connected to the output shaft of the drive motor 82, the main shaft 83 being disposed inside the guide sleeve 82, a nut opening 84 fixedly connected to the bottom of the main shaft 83, a magnetic element 85 being disposed inside the nut opening 84, and an L-shaped positioning plate 86 fixedly connected to the outside of the guide sleeve 82.

[0025] The upper part of the L-shaped positioning plate 87 is fixedly connected to the telescopic rod of the hydraulic cylinder 7, and the L-shaped positioning plate 87 is slidably mounted on the guide plate 9.

[0026] The mobile module 4 includes a module body 41. A servo motor 42 is fixedly connected to one side of the module body 41. A guide rail 43 is provided on the inner side of the module body 41. A slide block 44 is slidably arranged on the guide rail 43. A lead screw 45 is provided at the center of the inner side of the module body 41. The lead screw 45 is connected to the slide block 44 by a thread. The servo motor 42 drives the lead screw 45.

[0027] The fixing plate 5 is fixedly connected to the slide 44.

[0028] In this embodiment, the device mainly includes a base 1, with support rods 2 on both sides of the base. A support plate 3 is fixed on the support rods, and a movable module 4 is mounted on the support plate. The movable module 4 includes a module body 41, a servo motor 42, a guide rail 43, a slide 44, and a lead screw 45. The servo motor 42 drives the lead screw 45 to rotate, which in turn drives the slide 44 to move linearly along the guide rail 43 via a threaded connection. A fixing plate 5 is fixed on the slide 44, and a fixing block 6 is connected above the fixing plate, on which a hydraulic cylinder 7 is mounted.

[0029] The telescopic rod of the hydraulic cylinder 7 passes through the fixed block 6 and is connected to the rotary locking mechanism 8. The drive motor 81 is located at the top, and its output shaft is connected to the main shaft 83. The main shaft 83 passes through the guide sleeve 82 and is connected to the nut port 84 at the bottom. A magnetic element 85 is provided inside the nut port 84 to attract the nut. The rotary locking mechanism 8 is slidably mounted on the guide plate 9 fixed below the fixed plate via an L-shaped positioning plate 86. The upper part of the L-shaped positioning plate 86 is also fixedly connected to the telescopic rod of the hydraulic cylinder 7, ensuring that the rotary locking mechanism 8 can move up and down with the movement of the hydraulic cylinder 7 and slide horizontally on the guide plate.

[0030] A retainer 10 is fixed at the center of the base 1 to position the workpiece to be locked. A rotatable rotating disk 11 is also provided on the base, surrounding the retainer 10. Multiple screw placement blocks 12 are distributed on the rotating disk 11 to hold screws awaiting installation. When screws need to be tightened, the rotating disk 11 rotates to align the screw with the underside of the rotating locking mechanism 8. The hydraulic cylinder 7 descends, causing the nut opening to grip the screw head. The drive motor 81 starts, driving the nut opening to rotate via the main shaft, thereby achieving automatic screw tightening.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic screw and nut locking device, comprising a base (1), characterized in that: Support rods (2) are fixedly connected to both sides of the base (1). Support plates (3) are fixedly connected to the two support rods (2). A moving module (4) is fixedly connected to the support plate (3). A fixed plate (5) is slidably arranged on the moving module (4). A fixed block (6) is fixedly connected to the fixed plate (5). A hydraulic cylinder (7) is fixedly connected to the fixed block (6). The telescopic rod of the hydraulic cylinder (7) passes through the fixed block (6). A rotating locking mechanism (8) is fixedly connected to the bottom of the telescopic rod of the hydraulic cylinder (7). A guide plate (9) is fixedly connected to the bottom of the fixed plate (5). The rotating locking mechanism (8) is slidably arranged on the guide plate (9). A fixture (10) is fixedly connected to the upper center of the base (1). A rotating disk (11) is rotatably arranged on the base (1). The rotating disk (11) is located around the fixture (10). Multiple screw placement blocks (12) are arranged on the rotating disk (11). The rotary locking mechanism (8) includes a drive motor (81), a guide sleeve (82) is fixedly connected to the bottom of the drive motor (81), a main shaft (83) is fixedly connected to the output shaft of the drive motor (82), the main shaft (83) is disposed inside the guide sleeve (82), a nut hole (84) is fixedly connected to the bottom of the main shaft (83), a magnetic element (85) is disposed inside the nut hole (84), and an L-shaped positioning plate (86) is fixedly connected to the outside of the guide sleeve (82).

2. The automatic screw and nut locking device according to claim 1, characterized in that: The upper part of the L-shaped positioning plate (87) is fixedly connected to the telescopic rod of the hydraulic cylinder (7), and the L-shaped positioning plate (87) is slidably mounted on the guide plate (9).

3. The automatic screw and nut locking device according to claim 1, characterized in that: The mobile module (4) includes a module body (41), a servo motor (42) is fixedly connected to one side of the module body (41), a guide rail (43) is provided on the inner side of the module body (41), a slide block (44) is slidably provided on the guide rail (43), a lead screw (45) is provided at the center of the inner side of the module body (41), the lead screw (45) is connected to the slide block (44) by a thread, and the servo motor (42) drives the lead screw (45).

4. The automatic screw and nut locking device according to claim 3, characterized in that: The fixing plate (5) is fixedly connected to the slide (44).

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