A screw gasket assembly apparatus
By using a multi-station design and precise control for screw and washer assembly equipment, the problems of low efficiency and poor consistency of traditional equipment have been solved, achieving efficient and precise screw and washer assembly to meet the needs of mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XUEBOTE ELECTRICAL AUTOMATION TECHNOLOGY CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional screw and washer assembly equipment is inefficient and inconsistent, making it difficult to meet the needs of mass production.
The screw and washer assembly equipment with a multi-station design includes a washer station plate and a screw station plate. Combined with a positioning mechanism, a drive mechanism and a rotation mechanism, it realizes the parallel assembly of multiple sets of screws and washers, and achieves precise control through a rubber screw clamp and a screw fitting device.
It improved assembly efficiency, shortened production cycle time, ensured assembly accuracy and consistency, reduced defect rate, and met the needs of mass production.
Smart Images

Figure CN224526443U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical engineering technology, specifically a screw washer assembly device. Background Technology
[0002] A screw washer is a thin, sheet-like auxiliary part typically used in screw connections to fill gaps, distribute pressure, and prevent loosening.
[0003] Screw and washer assembly equipment is a specialized mechanical device used to automate or semi-automatically assemble screws and washers. It mainly solves the problems of low efficiency and poor consistency in traditional manual assembly and is widely used in manufacturing fields such as electronics, automobiles, and home appliances that require a large number of screw connections.
[0004] Traditional assembly equipment performs single-station assembly, which can only handle one assembly task at a time. The equipment spends most of its time in an idle state, such as waiting for parts to be loaded and for finished products to be taken out after pressing. The number of products produced per unit time is small, which is difficult to meet the production needs of large-volume orders. Therefore, a screw washer assembly equipment is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a screw washer assembly device.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A screw washer assembly device of this utility model includes a workbench; a washer conveying mechanism, a raised platform, an assembly chassis, and a support are provided at the end of the workbench; a screw conveying mechanism is provided at the end of the raised platform; a washer station plate is rotatably connected to the top of the assembly chassis; an electric push rod is fixedly connected inside the support; the output end of the electric push rod is fixedly connected to the screw station plate; a rotating mechanism is provided between the assembly chassis and the washer station plate, and between the electric push rod and the screw station plate; a driving mechanism is provided at the output end of the electric push rod; and a positioning mechanism is provided between the washer station plate and the screw station plate.
[0007] Preferably, the driving mechanism includes a positioning plate fixedly connected to the output end of the electric push rod; multiple sets of cylinders fixedly connected to the end of the positioning plate; a screw coupling provided at the output end of the cylinder; and multiple sets of rubber screw clamps fixedly connected to the side wall of the screw station plate.
[0008] Preferably, the rotating mechanism includes a first motor fixedly connected to the inner wall of the electric push rod; a first bearing fixedly connected to the output end of the first motor; the first bearing being fixedly connected to the screw station plate; a second motor fixedly connected inside the assembly chassis; a second bearing fixedly connected to the output end of the second motor; and the second bearing being fixedly connected to the gasket station plate.
[0009] Preferably, the positioning mechanism includes multiple sets of positioning sleeves fixedly connected to the end of the gasket station plate; multiple sets of positioning rods fixedly connected to the bottom of the screw station plate; and positioning rods slidably connected to the inner side wall of the positioning sleeve.
[0010] Preferably, the side wall of the gasket station is provided with multiple sets of magnetic rings.
[0011] Preferably, the side wall of the gasket workstation is detachably connected to a rubber sleeve.
[0012] Preferably, the inner wall of the gasket station is provided with multiple sets of damping rubber sleeves.
[0013] The beneficial effects of this utility model are:
[0014] This utility model provides a screw and washer assembly equipment. By setting up washer station trays and screw station trays, it realizes a multi-station design, which can carry out the assembly tasks of multiple sets of screws and washers in parallel. Compared with single-station assembly one by one, the production cycle is greatly shortened. In addition, the positioning structure when the two are docked ensures that the parts are quickly and accurately positioned, reducing waiting and adjustment time, further improving the overall assembly efficiency and meeting the needs of mass production.
[0015] This utility model provides a screw washer assembly device. Through the setting of a screw fitting device and a rubber screw clamp, a separate drive mechanism is realized to achieve flexible control of the screw. At the same time, the squeezing action is controlled with extremely high precision to ensure that the screw and the washer fit tightly and do not misalign, thereby improving the assembly accuracy and consistency of the product and reducing the defect rate. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of the rubber screw clamp in this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the second bearing in this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the rubber jacket in this utility model.
[0022] Legend:
[0023] 1. Workbench; 11. Gasket conveying mechanism; 12. Elevated platform; 13. Screw conveying mechanism; 14. Assembly chassis; 15. Gasket station plate; 16. Support; 17. Electric push rod; 18. Screw station plate; 2. Positioning plate; 21. Cylinder; 22. Screw coupling; 23. Rubber screw clamp; 3. First motor; 31. First bearing; 32. Second motor; 33. Second bearing; 4. Positioning sleeve; 41. Positioning rod; 5. Magnetic ring; 6. Rubber sleeve; 7. Damping rubber sleeve. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] Please see Figure 1 , Figure 2 , Figure 3This utility model provides a screw washer assembly device, including a workbench 1; characterized in that: a washer conveying mechanism 11, a raised platform 12, an assembly base 14, and a support 16 are provided at the end of the workbench 1; a screw conveying mechanism 13 is provided at the end of the raised platform 12; a washer station plate 15 is rotatably connected to the top of the assembly base 14; an electric push rod 17 is fixedly connected inside the support 16; a screw station plate 18 is fixedly connected to the output end of the electric push rod 17; the assembly base 14, the washer station plate 15, the electric push rod 17, and the screw station plate are all connected together. A rotating mechanism is provided between 18; a driving mechanism is provided at the output end of the electric push rod 17; a positioning mechanism is provided between the gasket station plate 15 and the screw station plate 18; firstly, the gaskets and screws are placed inside the gasket conveying mechanism 11 and the screw conveying mechanism 13 respectively, and the gaskets are fed and conveyed by the gasket conveying mechanism 11 and the screw conveying mechanism 13. The gaskets conveyed by the gasket conveying mechanism 11 flow into the slots of the gasket station plate 15. Multiple sets of slots are provided on the gasket station plate 15 to realize the feeding of multiple gaskets. At the same time, the screw conveying mechanism 13... The screws are fed into the slots of the screw station tray 18, enabling multiple screw loading. Simultaneously, the number of slots on the washer station tray 15 corresponds to the number on the screw station tray 18. After loading is complete, the washer station tray 15 and screw station tray 18 are adjusted via a rotating mechanism to align the slot positions and ensure the screws and washers are vertically aligned. Then, the electric push rod 17 is activated to bring the screw station tray 18 closer to the washer station tray 15 for contact. A positioning mechanism is used to achieve the preset accurate coordinates during assembly. At this point, the screw is positioned above the washer. Finally, the drive mechanism is activated to move the screw... After fixing, pressure is applied to drive the screw downward. Through the slot restriction of the washer station 15 and the downward pressure of the screw, the screw and the washer corresponding to the slot of the washer station 15 are squeezed together, thereby realizing the squeezing assembly of the screw and the washer. Through the multi-station design, multiple sets of screw and washer assembly tasks can be carried out in parallel. Compared with single-station assembly, the production cycle is greatly shortened. In addition, the positioning structure when the two are docked ensures that the parts are quickly and accurately positioned, reducing waiting and adjustment time, further improving the overall assembly efficiency and meeting the needs of mass production.
[0027] Furthermore, such as Figure 1 , Figure 2As shown, the driving mechanism includes a positioning plate 2 fixedly connected to the output end of the electric push rod 17; multiple sets of cylinders 21 fixedly connected to the end of the positioning plate 2; a screw clamp 22 provided at the output end of the cylinder 21; and multiple sets of rubber screw clamps 23 fixedly connected to the side wall of the screw station plate 18. When the screw enters the slot of the screw station plate 18, the rubber screw clamps 23 limit and support the screw. After the washer station plate 15 contacts and aligns with the screw station plate 18, the cylinder 21 is activated to drive the screw clamp 22 to move downwards rapidly. During the movement of the screw clamp 22, the screw clamp 22 first clamps and fixes itself to the screw, and then drives the screw downwards. The screw is pressed against the gasket at the slot of the gasket station 15 to complete the pressing assembly of the screw and the gasket. At the same time, as the screw sleeve 22 drives the screw to move, the rubber screw clamp 23 is restricted by the size of the screw sleeve 22 and deforms, causing the inner ring to expand downward. During this process, the rubber screw clamp 23 can also restrict the movement of the screw sleeve 22, improving the stability of the movement of the screw sleeve 22. The screw is flexibly controlled through a separate drive mechanism, and the pressing action is controlled with extremely high precision to ensure that the screw and the gasket fit tightly and do not misalign, thereby improving the assembly accuracy and consistency of the product and reducing the defect rate.
[0028] Furthermore, such as Figure 2 , Figure 3 As shown, the rotating mechanism includes a first motor 3 fixedly connected to the inner wall of the electric push rod 17; a first bearing 31 fixedly connected to the output end of the first motor 3; the first bearing 31 being fixedly connected to the screw station plate 18; a second motor 32 fixedly connected inside the assembly chassis 14; a second bearing 33 fixedly connected to the output end of the second motor 32; and the second bearing 33 being fixedly connected to the gasket station plate 15. By starting the first motor 3 and the second motor 32, the screw station plate 18 and the gasket station plate 15 are driven to rotate and their slots are aligned. At the same time, the first bearing 31 and the second bearing 33 provide stable support for the rotation, ensuring the stability of the rotation and avoiding the displacement of the screw or gasket position. In the multi-station assembly process, fast and accurate docking is the key to improving efficiency. The rotating mechanism pre-adjusts the screws and gaskets to their positions, which can reduce the adjustment time during the docking process and allow subsequent gripping, pressing and other operations to be carried out quickly.
[0029] Furthermore, such as Figure 4As shown, the positioning mechanism includes multiple sets of positioning sleeves 4 fixedly connected to the end of the gasket station plate 15; multiple sets of positioning rods 41 fixedly connected to the bottom of the screw station plate 18; and positioning rods 41 slidably connected to the inner side wall of the positioning sleeves 4. When the screw station plate 18 moves downward and mates with the gasket station plate 15, the positioning sleeves 4 and positioning rods 41 are used to determine the assembly position of the screw and the gasket. The positioning can accurately determine the relative position of the screw on the screw station plate 18 and the gasket on the gasket station plate 15, so that each part is in the preset accurate coordinates during assembly. No matter how long the equipment runs or how different specifications of parts are replaced, the consistency of the assembly position can be guaranteed, avoiding poor assembly caused by position deviation, effectively improving the product qualification rate and ensuring the stability of product quality.
[0030] Furthermore, such as Figure 4 As shown, the side wall of the gasket station tray 15 is provided with multiple sets of magnetic rings 5; by setting the magnetic rings 5 below the gasket placement position, the screw is initially attracted and positioned by magnetic force during the screw's downward movement, so that the two are in roughly accurate positions before pressing, reducing the alignment adjustment time of the subsequent pressing mechanism, and reducing the probability of assembly failure due to slight part misalignment, thereby improving the assembly success rate.
[0031] Furthermore, such as Figure 4 As shown, the side wall of the gasket station plate 15 is detachably connected to a rubber sleeve 6; during the assembly process, by replacing the rubber sleeve 6 with different inner ring sizes, different gaskets can be clamped and fixed, preventing them from being displaced or flipped due to external forces, such as the impact force when the screw is pressed, ensuring that the gasket is assembled with the screw in the correct position, improving the success rate of assembly and the stability of product quality.
[0032] Furthermore, such as Figure 4 As shown, the inner wall of the gasket station 15 is provided with multiple sets of damping rubber sleeves 7; during the process of screws being inserted into the gasket station 15 and assembled with the gaskets, the damping rubber sleeves 7 generate a damping effect on the lower end of the screws. After the damping effect is generated, the screws will not deviate or shake significantly due to inertia or external force, and can be accurately stopped in the ideal position for assembly with the gaskets, avoiding assembly failure due to positional deviation and effectively improving the success rate of assembly.
[0033] Working principle: First, washers and screws are placed inside the washer conveying mechanism 11 and screw conveying mechanism 13 respectively. The washers conveyed by the washer conveying mechanism 11 flow into the slots of the washer station tray 15. Multiple washers are fed through the multiple slots of the washer station tray 15. Simultaneously, screws conveyed by the screw conveying mechanism 13 flow into the slots of the screw station tray 18, achieving multiple screw feeding. The number of slots in the washer station tray 15 and screw station tray 18 corresponds. After feeding is complete, the washer station tray 15 and screw station tray 18 are adjusted by a rotating mechanism to align the slot positions and ensure the screws and washers are vertically aligned. Then, the electric push rod 17 is activated. The screw mounting plate 18 is brought closer to the washer mounting plate 15, and the positioning mechanism achieves the preset accurate coordinates during assembly. At this time, the screw is above the washer. Then, the drive mechanism is activated to fix the screw and apply pressure to drive the screw downward. Through the slot restriction of the washer mounting plate 15 and the downward pressure of the screw, the screw and the washer corresponding to the slot of the washer mounting plate 15 are squeezed together, thereby realizing the squeezing assembly of the screw and the washer. When the screw enters the slot of the screw mounting plate 18, the rubber screw clamp 23 limits and supports the screw. After the washer mounting plate 15 and the screw mounting plate 18 contact and align, the cylinder 21 is activated to drive the screw coupling 22 to move downward quickly. During the movement of the screw coupling 22, the screw coupling 22... 2. First, the screw is fixed in the slot, then the screw moves downwards to press against the washer at the slot of the washer station 15, thus completing the pressing assembly of the screw and washer. Simultaneously, as the screw coupling 22 moves the screw, the rubber screw clamp 23, limited by the size of the screw coupling 22, deforms and expands its inner ring downwards. During this process, the rubber screw clamp 23 also provides corresponding ring restriction for the movement of the screw coupling 22, improving the stability of its movement. The first motor 3 and the second motor 32 are then started to rotate the screw station 18 and the washer station 15, aligning their slots. At the same time, the first bearing 31 and the second bearing 33 provide stable support for the rotation, ensuring its stability and preventing... In cases of screw or washer misalignment, when the screw mounting plate 18 moves downwards to align with the washer mounting plate 15, the positioning sleeve 4 and positioning rod 41 are used to determine the assembly position of the screw and washer. This precise positioning accurately determines the relative position of the screw on the screw mounting plate 18 and the washer on the washer mounting plate 15, ensuring that each part is in a preset, accurate coordinate during assembly. By placing a magnetic ring 5 below the washer placement position, the screw is initially attracted and positioned using magnetic force during its downward movement, ensuring that both are in approximately accurate positions before pressing. This reduces the alignment adjustment time of the subsequent pressing mechanism and lowers the probability of assembly failure due to slight part misalignment. During assembly, different inner ring sizes of the rubber sleeve 6 can be used to adjust the position.It can clamp and fix different washers, preventing them from shifting or flipping due to external forces, such as the impact force when screws are pressed in. This ensures the washers are correctly positioned for assembly with the screws. During the assembly process, the damping rubber sleeve 7 dampens the lower end of the screw, preventing significant displacement or shaking due to inertia or external forces, allowing it to precisely remain in the ideal position for assembly with the washers.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A screw washer assembly device, comprising a workbench (1); characterized in that: The workbench (1) is provided with a gasket conveying mechanism (11), a raised platform (12), an assembly chassis (14), and a support (16) at one end; the raised platform (12) is provided with a screw conveying mechanism (13) at one end; the top of the assembly chassis (14) is rotatably connected to a gasket station plate (15); an electric push rod (17) is fixedly connected inside the support (16); the output end of the electric push rod (17) is fixedly connected to a screw station plate (18); a rotating mechanism is provided between the assembly chassis (14) and the gasket station plate (15) and between the electric push rod (17) and the screw station plate (18); a driving mechanism is provided at the output end of the electric push rod (17); a positioning mechanism is provided between the gasket station plate (15) and the screw station plate (18).
2. The screw washer assembly equipment as described in claim 1, characterized in that: The drive mechanism includes a positioning plate (2) fixedly connected to the output end of the electric push rod (17); multiple sets of cylinders (21) fixedly connected to the end of the positioning plate (2); a screw coupling (22) provided at the output end of the cylinder (21); and multiple sets of rubber screw clamps (23) fixedly connected to the side wall of the screw station plate (18).
3. The screw washer assembly equipment as described in claim 1, characterized in that: The rotating mechanism includes a first motor (3) fixedly connected to the inner wall of the electric push rod (17); a first bearing (31) fixedly connected to the output end of the first motor (3); the first bearing (31) is fixedly connected to the screw station plate (18); a second motor (32) fixedly connected inside the assembly chassis (14); a second bearing (33) fixedly connected to the output end of the second motor (32); and the second bearing (33) is fixedly connected to the gasket station plate (15).
4. The screw washer assembly equipment as described in claim 1, characterized in that: The positioning mechanism includes multiple sets of positioning sleeves (4) fixedly connected to the end of the gasket station plate (15); multiple sets of positioning rods (41) fixedly connected to the bottom of the screw station plate (18); and positioning rods (41) slidably connected to the inner side wall of the positioning sleeve (4).
5. The screw washer assembly equipment as described in claim 1, characterized in that: The side wall of the gasket workstation plate (15) is provided with multiple sets of magnetic rings (5).
6. The screw washer assembly equipment as described in claim 1, characterized in that: The side wall of the gasket workstation (15) is detachably connected to a rubber sleeve (6).
7. The screw washer assembly equipment as described in claim 1, characterized in that: Multiple sets of damping rubber sleeves (7) are provided on the inner side wall of the gasket workstation plate (15).