Multi-station nut automatic press-fit assembly equipment
By using a rotating and fixed disc design in a multi-station automatic nut pressing assembly equipment, combined with a lubrication component and a ball bearing limit rod, the problem of nut misalignment is solved, achieving precise nut fixing and reducing friction, thereby improving assembly quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
Existing multi-station automatic nut pressing and assembly equipment cannot prevent nuts from shifting during pressing, resulting in poor assembly quality, easy loosening and vibration of equipment, increased scrap rate and cost, and impact on production efficiency.
The rotating and fixed discs driven by cylinders, along with the limiting groove and pressing block, and the design of the lubrication components and ball limit rods, ensure that the nut maintains the accurate position and orientation during the pressing process, reduce friction, and achieve precise fixing.
It improves the accuracy and stability of nut assembly, reduces the scrap rate, enhances production efficiency and equipment reliability, and reduces friction and wear.
Smart Images

Figure CN224088385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated assembly technology, and in particular to a multi-station automatic nut pressing assembly device. Background Technology
[0002] Multi-station nuts, as special nuts used in industrial production to connect and fasten components, are widely used in automobile manufacturing, electronic equipment production, machining, furniture manufacturing and other fields due to their multi-station or multi-functional characteristics. They have significant advantages in improving production efficiency, enhancing connection stability, reducing costs, facilitating installation and adjustment and adapting to complex working conditions. Automatic pressing and assembly equipment is crucial in nut assembly and other production processes because it can improve production efficiency, ensure assembly quality, reduce labor intensity, enhance safety, and facilitate automated production, thus helping enterprises transform and upgrade.
[0003] Multi-station automatic nut pressing and assembly equipment generally consists of a positioning mechanism, a pressing mechanism, and a frame. With a control device as its core, the equipment coordinates the feeding mechanism to orderly transport nuts and parts, the positioning mechanism to accurately clamp and position them, the pressing mechanism to complete the pressing according to parameters, and the inspection mechanism to perform quality inspection. Qualified products are transported to the next process by the unloading mechanism, while unqualified products are rejected. All links work closely together to achieve automated, efficient, and precise assembly operation.
[0004] Existing multi-station automatic nut pressing and assembly equipment cannot avoid the problem of nut misalignment during pressing. In terms of assembly quality, nut misalignment leads to inaccurate connection positions, making it difficult to meet the specified torque and strength requirements. In the automotive and machinery industries, this can easily cause equipment loosening, vibration, and even safety accidents. In terms of production efficiency, it increases the scrap rate, leading to more rework and scrap, resulting in increased costs and material waste. In terms of production planning efficiency, it requires machine downtime for adjustment and reassembly, as well as additional inspection processes and manpower, significantly reducing production efficiency. Therefore, a multi-station automatic nut pressing and assembly equipment is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-station automatic nut pressing and assembly equipment, which aims to improve the problem that the nut cannot be avoided when pressing down in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-station automatic nut pressing and assembly equipment includes a worktable, a fixed frame fixedly connected to the top of the worktable, a placement plate fixedly connected inside the fixed frame, a second cylinder rotatably connected to the top of the placement plate, a rotating disk fixedly connected to the drive end of the second cylinder, a plurality of limiting grooves opened inside the rotating disk, a second pressing block slidably connected inside the limiting grooves, a first cylinder fixedly connected to the top of the fixed frame, a first pressing block fixedly connected to the drive end of the first cylinder, and lubrication components fixedly connected to both sides of the first pressing block.
[0008] As a further description of the above technical solution:
[0009] The two lubrication components include a fixed post, the outer side of which is fixedly connected to the inside of the extrusion block, and the inside of the fixed post is provided with a storage groove, and a plurality of balls are rotatably connected inside the storage groove;
[0010] As a further description of the above technical solution:
[0011] The fixed column is slidably connected to an oil inlet, and the oil inlet is slidably connected to a piston.
[0012] As a further description of the above technical solution:
[0013] A limiting rod is rotatably connected to the outer side of the ball, and the bottom of the limiting rod is fixedly connected to the inside of the fixed frame;
[0014] As a further description of the above technical solution:
[0015] The top of the rotating disk is rotatably connected to a fixed disk, and the fixed disk has a sliding groove inside.
[0016] As a further description of the above technical solution:
[0017] The outer side of the second extrusion block is slidably connected to the inside of the second extrusion block, and an anti-slip pad is fixedly connected to one end of the second extrusion block;
[0018] As a further description of the above technical solution:
[0019] The bottom of the fixed plate is fixedly connected to the top of the placement plate, and the bottom of the second extrusion block is slidably connected to the top of the placement plate.
[0020] As a further description of the above technical solution:
[0021] The bottom of the first extrusion block is slidably connected to the top of the second extrusion block, and the inside of the fixing column is slidably connected to the outside of the placement plate.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the rotating disk is driven by the starting cylinder two. The rotating disk cooperates with the limiting groove, the limiting groove cooperates with the pressing block, the pressing block cooperates with the sliding groove, and the sliding groove cooperates with the fixing disk, thereby fixing the nut and preventing the nut from shifting when pressing down. Precise fixing can ensure that the nut stays in the accurate position during the pressing process, making the assembly of the nut and the parts more accurate, reducing the assembly error caused by the nut shifting, and improving product quality and stability.
[0024] 2. In this utility model, the direction of downward pressing is restricted by the fixed column in conjunction with the storage groove, the storage groove in conjunction with the ball bearing, and the ball bearing in conjunction with the limiting rod. At the same time, lubricating oil is applied to the outside of the limiting rod to reduce friction between parts. The cooperation of the fixed column, storage groove, ball bearing, and limiting rod can accurately restrict the direction of downward pressing, making the pressing process more stable and accurate, ensuring that the nut can be pressed in the predetermined direction and position, and improving the accuracy and consistency of assembly. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a multi-station automatic nut pressing and assembly equipment proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the limiting rod of the multi-station automatic nut pressing and assembly equipment proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0029] Legend:
[0030] 1. Workbench; 2. Fixing frame; 3. Cylinder 1; 4. Extrusion block 1; 5. Fixing column; 6. Ball bearing; 7. Oil inlet; 8. Piston; 9. Storage tank; 10. Cylinder 2; 11. Rotating disc; 12. Limiting groove; 13. Fixing disc; 14. Sliding groove; 15. Extrusion block 2; 16. Anti-slip mat; 17. Placement plate; 18. Limiting rod. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1 to 3 This utility model provides an embodiment of an automatic nut pressing and assembly equipment with multiple workstations, including a workbench 1. The workbench 1 serves as the basic support platform for the entire assembly equipment, providing stable support for the subsequent installation and operation of various components, ensuring that the equipment will not be affected by shaking during operation. A fixed frame 2 is fixedly connected to the top of the workbench 1. The fixed frame 2 extends vertically upward, forming a three-dimensional frame structure for the equipment, which not only enhances the overall stability of the equipment but also provides a reliable mounting support for the parts. A placement plate 17 is fixedly connected inside the fixed frame 2. The placement plate 17 is horizontally set, providing a flat mounting surface for the cylinder 10 and related components, ensuring the smooth operation of the subsequent rotating parts. The top of the placement plate 17 is rotatably connected to the cylinder 10. The cylinder 10 serves as a power source, providing precise rotational power. Its stable power output ensures that the rotation process of the rotating disk 11 is uniform and controllable.
[0033] A rotating disk 11 is fixedly connected to the drive end of cylinder 2 10. When cylinder 2 10 is started, the rotating disk 11 can rotate under its drive, thereby realizing the orderly flow of nuts between different work stations and improving assembly efficiency. A fixed disk 13 is rotatably connected to the top of the rotating disk 11. The rotatable connection design between the fixed disk 13 and the rotating disk 11 allows the fixed disk 13 to remain relatively fixed when the rotating disk 11 rotates, providing a stable support surface for the fixing and pressing of the nuts.
[0034] The bottom of the fixed plate 13 is fixedly connected to the top of the placement plate 17. This stable connection method further enhances the stability of the fixed plate 13, avoids displacement during nut pressing, and ensures smooth assembly. The fixed plate 13 has a sliding groove 14 inside. The sliding groove 14 provides a guide track for the sliding of the extrusion block 15, which can precisely limit the movement trajectory of the extrusion block 15, so that it can only slide in a specific direction, thereby achieving precise fixing of the nut.
[0035] The rotating disk 11 has multiple limiting grooves 12 inside. These limiting grooves 12 cooperate with the pressing block 15. When the rotating disk 11 rotates, the limiting grooves 12 can drive the pressing block 15 to move, thereby realizing the fixing operation of the nut. The pressing block 15 is slidably connected inside the limiting groove 12. Under the action of the limiting groove 12, the pressing block 15 can slide flexibly in the sliding groove 14. Through the ingenious mechanical structure design, the rotational motion of the rotating disk 11 is transformed into the pressing and fixing action of the nut.
[0036] The bottom of the second extrusion block 15 is slidably connected to the top of the placement plate 17. The placement plate 17 provides a stable support surface for the sliding of the second extrusion block 15, ensuring that the second extrusion block 15 will not shake or shift during the sliding process, thus ensuring the accuracy of the nut fixing. The outer side of the second extrusion block 15 is slidably connected to the inside of the sliding groove 14. The tight fit between the sliding groove 14 and the second extrusion block 15 effectively prevents the second extrusion block 15 from shifting laterally during the sliding process, making the extrusion fixing of the nut more reliable.
[0037] One end of the extrusion block 2 15 is fixedly connected to an anti-slip pad 16. The anti-slip pad 16 increases the friction between the extrusion block 2 15 and the nut, preventing the nut from slipping during the pressing process, thereby ensuring the positional accuracy of the nut during pressing and improving the assembly quality. The top of the fixing frame 2 is fixedly connected to a cylinder 1 3. The cylinder 1 3 provides vertical downward pressure to the extrusion block 1 4. Its powerful and stable power output can ensure that the extrusion block 1 4 can effectively press the nut.
[0038] The drive end of cylinder 3 is fixedly connected to pressing block 4. Under the drive of cylinder 3, pressing block 4 can move downward precisely to press the fixed nut. The pressing force and position can be precisely controlled according to the assembly requirements to ensure the pressing effect. The bottom of pressing block 4 is slidably connected to the top of pressing block 15. This sliding connection method allows pressing block 4 to slide smoothly along the top of pressing block 15 during the pressing process, ensuring that the pressing force is evenly applied to the nut.
[0039] Both sides of the extrusion block 4 are fixedly connected with lubrication components. The lubrication components can automatically lubricate the relevant moving parts during the operation of the equipment, reduce friction and wear between parts, extend the service life of the equipment, and also ensure the stability and reliability of the equipment operation.
[0040] Reference Figure 1 , Figure 2 and Figure 4 The two lubrication components include a fixed post 5, which is sleeved on the outside of the limiting rod 18. The fixed post 5 not only plays a guiding role to ensure the accurate direction of the extrusion block 4 when it moves up and down, but also reduces the frictional resistance between it and the limiting rod 18 through the internal lubrication mechanism. The fixed post 5 is internally slidably connected to the outside of the limiting rod 18. The limiting rod 18 provides precise guidance for the sliding of the fixed post 5, so that the fixed post 5 remains stable during the sliding process and avoids shaking that affects the lubrication effect.
[0041] The fixed column 5 has an internal sliding connection to an oil inlet 7, which is used to inject lubricating oil into the storage tank 9. Its reasonable structural design ensures that the lubricating oil can flow smoothly into the storage tank 9, providing sufficient lubricating medium for subsequent lubrication work. The oil inlet 7 has an internal sliding connection to a piston 8, which can control the flow rate of lubricating oil. By adjusting the position of the piston 8, the amount of lubricating oil entering the storage tank 9 can be precisely controlled to avoid waste of lubricating oil and ensure the lubrication effect.
[0042] The outer side of the fixed column 5 is fixedly connected to the inside of the extrusion block 4. This connection method allows the fixed column 5 to move synchronously with the movement of the extrusion block 4, ensuring that the lubrication component can always effectively lubricate the limit rod 18 during the up-and-down movement of the extrusion block 4. The fixed column 5 has a storage groove 9 inside, which is used to store lubricating oil, providing sufficient lubricant for the lubrication of the ball 6 and ensuring the continuity of lubrication.
[0043] Multiple ball bearings 6 are rotatably connected inside the storage tank 9. The ball bearings 6 can rotate flexibly inside the storage tank 9. When the fixed column 5 slides downward, the ball bearings 6 contact the limiting rod 18 and rotate, so that the lubricating oil in the storage tank 9 is evenly applied to the outside of the limiting rod 18, realizing the automatic lubrication function. The outer side of the ball bearings 6 is rotatably connected to the limiting rod 18. The cooperation between the limiting rod 18 and the ball bearings 6 allows the ball bearings 6 to fit tightly against the surface of the limiting rod 18 during rotation, ensuring that the lubricating oil can be evenly covered on the limiting rod 18, achieving a good lubrication effect. The bottom of the limiting rod 18 is fixedly connected to the inside of the fixed frame 2, providing stable support and guidance for the up and down sliding of the fixed column 5 and the extrusion block 4, ensuring the stability and reliability of the equipment operation.
[0044] Working principle: When the operator needs to press the nut, the nut can be placed on the top of the fixed plate 13. Then, the cylinder 10 is activated to drive the rotating plate 11. The rotating plate 11 has multiple limiting grooves 12 inside. The limiting grooves 12 will drive the pressing block 15 due to the rotation of the rotating plate 11. The outer side of the pressing block 15 slides inside the sliding groove 14 inside the fixed plate 13. The rotation of the limiting groove 12 will drive the pressing block 15. The pressing block 15 will be restricted by the sliding groove 14 and cannot rotate with the limiting groove 12. It can only be pressed by the limiting groove 12 and slide inside the sliding groove 14. At this time, the pressing block 15 can fix the nut.
[0045] At this point, cylinder 3 can also be started, which will drive extrusion block 4. There are fixed posts 5 on both sides of extrusion block 4. When extrusion block 4 slides down, it will also drive the fixed posts 5 on both sides. The fixed posts 5 have storage tanks 9 inside. Lubricating oil can be poured into the storage tanks 9 through the oil inlet 7. When the fixed posts 5 are driven to slide down, they can drive the multiple balls 6 inside the storage tanks 9 together. At this time, the balls 6 can carry out the lubricating oil inside the storage tanks 9 and apply it to the outside of the limit rod 18.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-station automatic nut pressing and assembly equipment, comprising a worktable (1), characterized in that: A fixed frame (2) is fixedly connected to the top of the workbench (1). A placement plate (17) is fixedly connected inside the fixed frame (2). A cylinder (10) is rotatably connected to the top of the placement plate (17). A rotating disk (11) is fixedly connected to the driving end of the cylinder (10). A plurality of limiting grooves (12) are opened inside the rotating disk (11). A pressing block (15) is slidably connected inside the limiting groove (12). A cylinder (3) is fixedly connected to the top of the fixed frame (2). A pressing block (4) is fixedly connected to the driving end of the cylinder (3). Lubrication components are fixedly connected to both sides of the pressing block (4).
2. The multi-station automatic nut pressing and assembly equipment according to claim 1, characterized in that: The two lubrication components include a fixed post (5), the outside of which is fixedly connected to the inside of the extrusion block (4), and a storage groove (9) is provided inside the fixed post (5), and a plurality of balls (6) are rotatably connected inside the storage groove (9).
3. The multi-station automatic nut pressing and assembly equipment according to claim 2, characterized in that: The fixed column (5) has an oil inlet (7) slidably connected inside, and the oil inlet (7) has a piston (8) slidably connected inside.
4. The multi-station automatic nut pressing and assembly equipment according to claim 2, characterized in that: The outer side of the ball (6) is rotatably connected to a limiting rod (18), and the bottom of the limiting rod (18) is fixedly connected to the inside of the fixing frame (2).
5. The multi-station automatic nut pressing and assembly equipment according to claim 1, characterized in that: The top of the rotating disk (11) is rotatably connected to a fixed disk (13), and a sliding groove (14) is provided inside the fixed disk (13).
6. The multi-station automatic nut pressing and assembly equipment according to claim 5, characterized in that: The outer side of the extrusion block 2 (15) is slidably connected to the inside of the sliding groove (14), and an anti-slip pad (16) is fixedly connected to one end of the extrusion block 2 (15).
7. The multi-station automatic nut pressing and assembly equipment according to claim 5, characterized in that: The bottom of the fixed plate (13) is fixedly connected to the top of the placement plate (17), and the bottom of the compression block 2 (15) is slidably connected to the top of the placement plate (17).
8. The multi-station automatic nut pressing and assembly equipment according to claim 2, characterized in that: The bottom of the first extrusion block (4) is slidably connected to the top of the second extrusion block (15), and the interior of the fixing column (5) is slidably connected to the outside of the placement plate (17).