Full-automatic multi-station vacuum oil injection machine

Abstract

The utility model belongs to automatic oil injection equipment technical field discloses a kind of full-automatic multi-station vacuum oil injection machine, including workbench, indexing disc is rotatably connected on workbench, indexing disc can rotate intermittently along the circumferential direction, and indexing disc is connected with multiple shaft shell bases, the scheme is constructed with indexing disc as the core multi-station vacuum oil injection system, integrates first shaft shell vibration disc feeding mechanism, second shaft shell vibration disc feeding structure, shaft shell handling mechanism, oil injection machine, module handling mechanism and tray handling mechanism and other key devices, form a set of compact structure, beat matching, flexible adaptation full-automatic oil injection scheme, not only can adapt to the automatic feeding and oil injection operation of multiple models of shaft shell, but also realize the automatic arrangement and tray turnover of workpiece after oil injection, effectively improve oil injection consistency and production efficiency, avoid the problems of misplacement, missing injection and beat interruption caused by manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of automated oil injection equipment technology, and in particular to a fully automatic multi-station vacuum oil injection machine. Background Technology

[0002] Soft-close mechanisms are widely used in modern toilet seats, kitchen and bathroom seat covers, and other products. A key component is the shaft housing structure, which is filled with damping oil. To ensure smooth and slow movement during opening and closing, a precise amount of damping oil must be injected into the shaft housing, and sealing and consistency of oil injection must be guaranteed. In actual production, the shaft housing oiling process is usually a crucial step in the soft-close mechanism assembly line, involving multiple processes such as feeding, oiling, positioning, and unloading. Some production lines also use pallets to organize and transfer the oiled parts.

[0003] Existing shaft housing lubrication equipment is mostly semi-automatic, requiring manual assistance in several steps, such as shaft housing loading, lubrication, removal, and tray placement. This method is not only inefficient and inconsistent in lubrication, but also suffers from cycle time bottlenecks during mass production, failing to meet the high-speed operation requirements of automated assembly lines. Furthermore, most existing lubrication equipment is only compatible with a single shaft housing model, with a fixed structure and lack of flexible adjustment capabilities. Regarding pallet management, the replacement of empty and full pallets largely relies on manual judgment and handling, posing risks such as untimely pallet replacement, mixed placement, or incorrect loading, increasing potential quality issues.

[0004] Based on the above problems, existing technologies still have significant shortcomings in improving the automation level of oiling, improving the efficiency of shaft housing transportation paths, achieving compatibility of multiple shaft housing specifications, and intelligent pallet management, which limit the production efficiency and consistency control capabilities of slow-descent mechanism components in large-scale manufacturing. Utility Model Content

[0005] This utility model aims to provide a fully automatic multi-station vacuum oiling machine to solve the problems mentioned in the background art. This solution constructs a multi-station vacuum oiling system with an indexing plate as the core, integrating key devices such as a first shaft housing vibratory feeder mechanism, a second shaft housing vibratory feeder structure, a shaft housing transport mechanism, an oiling machine, a module transport mechanism, and a pallet transport mechanism. This forms a compact, rhythm-matched, and flexibly adaptable fully automatic oiling solution. It can not only adapt to the automatic feeding and oiling operations of various types of shaft housings, but also realize the automatic sorting and pallet turnover of workpieces after oiling, effectively improving the consistency of oiling and production efficiency, avoiding the problems of misalignment, missed oiling, and rhythm interruption caused by manual intervention. It is suitable for multi-variety, small-batch, and high-speed automated assembly scenarios, and has significant engineering application value for improving the automated assembly capability of slow-descent structural parts.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fully automatic multi-station vacuum oiling machine includes a worktable with an indexing plate rotatably connected to it. The indexing plate can rotate intermittently along its circumference, and multiple shaft housing bases are connected to it. Along the circumference of the indexing plate, the worktable is sequentially connected to a first shaft housing vibratory feeder mechanism, a second shaft housing vibratory feeder structure, a pair of shaft housing transport mechanisms, a pair of photoelectric sensors, an oiling machine, a module transport mechanism, and a pallet transport mechanism. The first and second shaft housing vibratory feeder mechanisms are respectively connected to a shaft housing via guide rails. The module transport mechanism is located downstream of the oiling machine and is equipped with grippers that align with the oiled shaft housing base. The pallet transport mechanism is located on the discharge side of the module transport mechanism and is equipped with a tilting plate position, an empty plate position, and a full plate position. The empty plate position and the full plate position are located on both sides of the tilting plate position, and both the empty plate position and the full plate position are connected to the tilting plate mechanism. The movement trajectory of the grippers covers the tilting plate position. The photoelectric sensor is located at the docking position between the shaft housing transport mechanism and the indexing plate.

[0008] Preferably, the shaft housing conveying mechanism includes a linear guide rail, a slider, a lifting structure, and a clamping assembly. The slider is connected to the linear guide rail, the lifting structure is vertically connected to the upper end of the slider, and the clamping assembly is fixed to the end of the lifting structure.

[0009] Preferably, the oiling machine includes a fixed base, an oiling cylinder, a drive cylinder, and an oiling needle, with the oiling cylinder connected above the fixed base.

[0010] Preferably, the drive cylinder is connected to the end of the oil injection cylinder away from the fixed seat, and the oil injection needle is located at the lower end of the oil injection cylinder and is positioned towards the shaft housing base.

[0011] Preferably, the module handling mechanism includes a transverse guide rail, a lifting slider, and a rotating assembly, wherein the transverse guide rail is connected to the worktable.

[0012] Preferably, the lifting slider is connected to the transverse guide rail, the rotating assembly is mounted on the upper end of the lifting slider, and the gripper is connected to the lower end of the rotating assembly.

[0013] Preferably, the pallet handling mechanism includes a lateral movement mechanism, and the pallet placement mechanism includes a pallet carrying platform and a vertical limiting structure.

[0014] Preferably, the number of the shaft housing bases is set to 8, and the 8 shaft housing bases are evenly distributed on the circumference of the indexing plate.

[0015] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0016] This solution constructs a multi-station vacuum oiling system centered on an indexing plate, integrating key devices such as a first shaft housing vibratory feeder mechanism, a second shaft housing vibratory feeder structure, a shaft housing transport mechanism, an oiling machine, a module transport mechanism, and a pallet transport mechanism. This forms a compact, cycle-matched, and flexibly adaptable fully automated oiling solution. It not only adapts to the automatic feeding and oiling operations of various shaft housing models but also achieves automatic workpiece sorting and pallet turnover after oiling, effectively improving oiling consistency and production efficiency. It avoids misalignment, missed oiling, and cycle interruption problems caused by manual intervention, making it suitable for multi-variety, small-batch, and high-speed automated assembly scenarios. It has significant engineering application value in improving the automated assembly capabilities of slow-descent structural components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall top view structure of the present invention;

[0018] Figure 2 A schematic diagram of the overall structure of this utility model;

[0019] Figure 3 A partial structural schematic diagram provided for this utility model

[0020] Reference numerals in the attached drawings: 1. Workbench; 2. Indexing plate; 3. First shaft housing vibratory feeder mechanism; 4. Second shaft housing vibratory feeder structure; 5. Shaft housing transport mechanism; 6. Shaft housing base; 7. Oil injection machine; 8. Module transport mechanism; 9. Gripper; 10. Pallet transport mechanism; 11. Plate-swinging mechanism. Detailed Implementation

[0021] Soft-close mechanisms are widely used in modern toilet seats, kitchen and bathroom seat covers, and other products. A key component is the shaft housing structure, which is filled with damping oil. To ensure smooth and slow movement during opening and closing, a precise amount of damping oil must be injected into the shaft housing, and sealing and consistency of oil injection must be guaranteed. In actual production, the shaft housing oiling process is usually a crucial step in the soft-close mechanism assembly line, involving multiple processes such as feeding, oiling, positioning, and unloading. Some production lines also use pallets to organize and transfer the oiled parts.

[0022] Existing shaft housing lubrication equipment is mostly semi-automatic, requiring manual assistance in several steps, such as shaft housing loading, lubrication, removal, and tray placement. This method is not only inefficient and inconsistent in lubrication, but also suffers from cycle time bottlenecks during mass production, failing to meet the high-speed operation requirements of automated assembly lines. Furthermore, most existing lubrication equipment is only compatible with a single shaft housing model, with a fixed structure and lack of flexible adjustment capabilities. Regarding pallet management, the replacement of empty and full pallets largely relies on manual judgment and handling, posing risks such as untimely pallet replacement, mixed placement, or incorrect loading, increasing potential quality issues.

[0023] Therefore, this utility model provides an automatic oiling device with a compact structure, stable operation, and applicability to various types of shaft housings. Through a multi-station design and pallet linkage mechanism, it achieves efficient linkage of oiling, handling, and sorting processes to meet the needs of automated production lines for flexibility and intelligence.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0025] like Figure 1-3 The fully automatic multi-station vacuum oiling machine shown includes a worktable 1, on which an indexing plate 2 is rotatably connected. The indexing plate 2 can rotate intermittently along the circumference, and multiple shaft housing bases 6 are connected to the indexing plate 2. Along the circumference of the indexing plate 2, the worktable 1 is sequentially connected to a first shaft housing vibratory feeder mechanism 3, a second shaft housing vibratory feeder structure 4, a pair of shaft housing transport mechanisms 5, a pair of photoelectric sensors, an oiling machine 7, a module transport mechanism 8, and a pallet transport mechanism 10. The first shaft housing vibratory feeder mechanism 3 and the second shaft housing vibratory feeder structure 4 are respectively connected to a guide rail... The nozzle housing transport mechanism 5 is connected, and the module transport mechanism 8 is located downstream of the oiling machine 7. The module transport mechanism 8 is connected to the gripper 9, which is aligned with the oiled housing base 6. The pallet transport mechanism 10 is located on the discharge side of the module transport mechanism 8. The pallet transport mechanism 10 is provided with a swing plate position, an empty plate position, and a full plate position. The empty plate position and the full plate position are located on both sides of the swing plate position. The swing plate mechanism 11 is connected to both the empty plate position and the full plate position. The movement trajectory of the gripper 9 covers the swing plate position. The photoelectric sensor is located at the docking position between the housing transport mechanism 5 and the indexing plate 2.

[0026] In this embodiment, the fully automatic multi-station vacuum oiling machine uses a multi-station rotating system centered on the indexing plate 2 to connect the processes of feeding, transporting, oiling, removing, and arranging the shaft housing, creating a continuous and efficient automated oiling unit. The overall structure of the equipment is arranged around the workbench 1, with key mechanisms arranged in a ring along the indexing plate 2. The shaft housing moves along the indexing plate 2 within the shaft housing base 6, sequentially passing through each station to complete the processing task. The system employs a first shaft housing vibratory feeder mechanism 3 and a second shaft housing vibratory feeder structure 4, respectively adapted to different models of shaft housings, allowing for rapid switching of production tasks without changing equipment. The shaft housing transport mechanism 5 ensures that the material is transported from the end of the supply line. The precise transfer of the shaft housing base 6, in conjunction with the downstream oiling machine 7, completes the oiling operation. After oiling, the module handling mechanism 8 picks up and transfers the shaft housing. This mechanism can cover the entire path of the pallet area, ensuring efficient parts handling. The pallet handling mechanism 10 switches between empty and full pallet positions via a track, enabling continuous stacking and replacement. The overall machine design incorporates photoelectric sensors to monitor the status of the loading station, effectively preventing cycle disorder and misoperation, and improving the stability and cycle output capability of the overall system. This solution integrates multiple operation processes onto the same platform, reducing manual intervention, improving oiling consistency and production efficiency, and is suitable for flexible production scenarios with multiple models and batches.

[0027] The first shaft housing vibratory feeder feeding mechanism 3 and the second shaft housing vibratory feeder feeding structure 4 are used for feeding and sorting different models of shaft housings. They operate independently and are guided to the corresponding handling positions by guide rails. In line change or mixed line operations, operators only need to switch the vibratory feeder operating mode without replacing the entire feeding device. This effectively adapts to the flexible manufacturing needs of small batches and multiple varieties. At the same time, the two guide rails are arranged in pairs to match the synchronous material picking action of the subsequent pair of shaft housing handling mechanisms 5, reducing waiting time and ensuring that the feeding cycle can keep up with the rotation process of the indexing plate 2.

[0028] The shaft housing transport mechanism 5 includes a linear guide rail, a slider, a lifting structure, and a clamping assembly. The slider is connected to the linear guide rail, the lifting structure is vertically connected to the upper end of the slider, and the clamping assembly is fixed to the end of the lifting structure.

[0029] The shaft housing conveying mechanism 5 is set between the feeding end and the indexing plate 2. It achieves three-dimensional spatial positioning through linear guide rails and lifting structure, ensuring that each clamping and placement can accurately correspond to the position of the shaft housing base 6. The structure is equipped with a photoelectric sensor module at the bottom to detect in real time whether there is a part to be picked up at the end of the guide rail, so as to control whether the indexing plate 2 advances and prevents it from spinning or misaligning.

[0030] The oiling machine 7 includes a fixed base, an oiling cylinder, a drive cylinder, and an oiling needle. The oiling cylinder is connected above the fixed base, the drive cylinder is connected to the end of the oiling cylinder away from the fixed base, and the oiling needle is located at the lower end of the oiling cylinder and is positioned towards the shaft housing base 6.

[0031] In this embodiment, the oil injector 7 is positioned in the middle of the rotation path of the indexing plate 2. It achieves quantitative injection through components such as the oil injection cylinder, drive cylinder, and oil injection needle. During the oil injection process, the oil injection needle is vertically aligned with the shaft housing in the shaft housing base 6. The positioning assistance action of the gripper 9 ensures that the oil injection is not eccentric or splashed. The oil injection volume is precisely controlled by the stroke of the drive cylinder to avoid affecting the damping performance due to over- or under-injection. In addition, the oil injection action is triggered synchronously with the stop of the indexing plate 2 to ensure the stability of the liquid injection process and avoid leakage or foaming due to vibration.

[0032] The module handling mechanism 8 includes a transverse guide rail, a lifting slider, and a rotating assembly. The transverse guide rail is connected to the worktable 1, the lifting slider is connected to the transverse guide rail, the rotating assembly is installed on the upper end of the lifting slider, and the gripper 9 is connected to the lower end of the rotating assembly.

[0033] In this embodiment, the module transport mechanism 8 is mainly responsible for gripping and transferring the shaft housing after oiling is completed. This mechanism integrates a transverse guide rail, a lifting slider, and a rotating component. The gripper 9 is fixed at its far end, which can achieve full coverage of the path from the oiling station to the tray placement position. The rotating component allows the gripper 9 to be angled in space to adapt to different placement directions. Below the transport path is the tray placement area of ​​the tray transport mechanism 10. The precise placement of the module transport mechanism 8 ensures that the shaft housing is placed on the tray in sequence, avoiding overlap or jamming, and laying a good foundation for subsequent full-tray transfer.

[0034] The pallet handling mechanism 10 includes a lateral movement mechanism, and the pallet stacking mechanism 11 includes a pallet carrying platform and a vertical limiting structure.

[0035] In this embodiment, the pallet handling mechanism 10 is divided into three parts: an empty pallet position, a pallet swing position, and a full pallet position. These are respectively arranged on both sides of the horizontal movement mechanism and in the central area. A pallet swing mechanism 11 is configured above both the empty and full pallet positions, including a pallet carrying platform and a vertical limiting structure. When the module handling mechanism 8 places the shaft housing into the pallet, the pallet moves down one layer with the platform, reserving upper space for the next shaft housing. After the pallet is full, the pallet handling mechanism 10 moves laterally to the full pallet position, while the empty pallet is pushed into the central area from the other end, forming a closed loop. The empty-full switching is completed without stopping the machine, ensuring that the oil filling cycle is not interrupted by the pallet changing action, and improving the continuity and automation of the whole machine operation.

[0036] The number of shaft housing bases 6 is set to 8, and the 8 shaft housing bases 6 are evenly distributed on the circumference of the indexing plate 2.

[0037] In this embodiment, the number of shaft housing bases 6 is set to 8, and they are evenly distributed on the circumferential path of the indexing plate 2. This optimizes the process coordination between the indexing cycle and each workstation. With this arrangement, each time the rotation is fixed, a shaft housing base 6 is precisely aligned with the next functional workstation, such as feeding, oiling, or handling. During system operation, equal feeding and synchronous control are achieved. The 8-workstation setup balances the stability of the oiling operation with the balance of the overall line cycle. This not only avoids waiting time caused by too few workstations, but also prevents redundancy or excessive equipment size caused by too many workstations. In addition, this equidistant arrangement simplifies electrical control and logic programming, improves the control reliability of the whole machine, and is an important foundation for supporting the high efficiency and stable operation of the entire equipment.

[0038] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fully automatic multi-station vacuum oil injection machine, characterized in that: The system includes a worktable (1), on which an indexing plate (2) is rotatably connected. The indexing plate (2) can rotate intermittently along the circumferential direction, and multiple shaft housing bases (6) are connected to the indexing plate (2). Along the circumferential direction of the indexing plate (2), the worktable (1) is sequentially connected to a first shaft housing vibratory feeder mechanism (3), a second shaft housing vibratory feeder structure (4), a pair of shaft housing transport mechanisms (5), a pair of photoelectric sensors, an oil injector (7), a module transport mechanism (8), and a pallet transport mechanism (10). The first shaft housing vibratory feeder mechanism (3) and the second shaft housing vibratory feeder structure (4) are respectively connected to a shaft housing transport mechanism (5) via guide rails. 5) Connection, the module transport mechanism (8) is located downstream of the oiling machine (7), and the module transport mechanism (8) is connected to a gripper (9). The gripper (9) is aligned with the shaft housing base (6) after oiling. The pallet transport mechanism (10) is located on the discharge side of the module transport mechanism (8), and the pallet transport mechanism (10) is provided with a plate position, an empty plate position and a full plate position. The empty plate position and the full plate position are located on both sides of the plate position, and the empty plate position and the full plate position are connected to the plate position mechanism (11). The movement trajectory of the gripper (9) covers the plate position. The photoelectric sensor is located at the docking position between the shaft housing transport mechanism (5) and the indexing plate (2).

2. The fully automatic multi-station vacuum oil injection machine as described in claim 1, characterized in that: The shaft housing transport mechanism (5) includes a linear guide rail, a slider, a lifting structure and a clamping assembly. The slider is connected to the linear guide rail, the lifting structure is vertically connected to the upper end of the slider, and the clamping assembly is fixed to the end of the lifting structure.

3. The fully automatic multi-station vacuum oil injection machine as described in claim 1, characterized in that: The oil injector (7) includes a fixed base, an oil injection cylinder, a drive cylinder and an oil injection needle, with the oil injection cylinder connected above the fixed base.

4. The fully automatic multi-station vacuum oil injection machine as described in claim 3, characterized in that: The drive cylinder is connected to the end of the oil injection cylinder away from the fixed seat, and the oil injection needle is located at the lower end of the oil injection cylinder and is positioned towards the shaft housing base (6).

5. The fully automatic multi-station vacuum oil injection machine as described in claim 1, characterized in that: The module handling mechanism (8) includes a transverse guide rail, a lifting slider and a rotating assembly, wherein the transverse guide rail is connected to the worktable (1).

6. The fully automatic multi-station vacuum oil injection machine as described in claim 5, characterized in that: The lifting slider is connected to the transverse guide rail, the rotating component is installed on the upper end of the lifting slider, and the gripper (9) is connected to the lower end of the rotating component.

7. The fully automatic multi-station vacuum oil injection machine as described in claim 1, characterized in that: The pallet handling mechanism (10) includes a lateral movement mechanism, and the pallet slab placement mechanism (11) includes a pallet carrying platform and a vertical limiting structure.

8. The fully automatic multi-station vacuum oil injection machine as described in claim 1, characterized in that: The number of the shaft housing bases (6) is set to 8, and the 8 shaft housing bases (6) are evenly distributed on the circumference of the indexing plate (2).

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