Rotary base for an industrial robot

Abstract

The utility model relates to robot base technical field, concretely is a kind of rotary base of industrial robot, including chassis, its top end middle part is fixedly connected with circular machine case, the upper end of circular machine case is provided with lifting disc, and the bottom end middle part of lifting disc is fixedly connected with motor;The output shaft of motor is fixedly connected with mounting disc through lifting disc, lifting mechanism is arranged between the lifting disc and chassis.

Description

Technical Field

[0001] This utility model relates to the field of robot base technology, specifically a rotating base for an industrial robot. Background Technology

[0002] Industrial robots are multi-jointed manipulators or multi-degree-of-freedom machines widely used in industrial fields. They possess a certain degree of automation and can perform various industrial processing and manufacturing functions using their own power and control capabilities. Industrial robots are equipped with a base that can rotate to allow the robot to work at various angles.

[0003] As disclosed in patent application CN222521373U, a rotating support base device for an industrial robot includes a chassis. A support cylinder is fixedly connected to the center of the upper surface of the chassis. A servo motor is mounted on the upper surface of the chassis and is disposed inside the support cylinder. The output end of the servo motor is connected and fixed to a connecting plate via a transmission shaft. The connecting plate is disposed on the upper side of the support cylinder and is concentrically arranged with the support cylinder. The beneficial effects of this invention, achieved by adopting the above technical solution, are: expanding the space for replacing worn parts without the need to disassemble components such as the connecting plate for replacement.

[0004] Although the aforementioned patent allows for easy replacement of the semi-circular pad and support wheel, the output shaft of the servo motor is fixedly connected to the connecting plate, which cannot be raised or lowered. Furthermore, the ring slides against the inner wall of the support cylinder, making it a wear-prone part. This makes it impossible to effectively replace the ring. Moreover, after the motor is damaged, the inability to raise or lower the connecting plate makes the installation and maintenance of the motor quite cumbersome. Utility Model Content

[0005] The purpose of this invention is to provide a rotating base for an industrial robot to solve the problems mentioned in the background art.

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

[0007] A rotating base for an industrial robot, comprising

[0008] The chassis has a circular housing fixedly connected to its top center. A lifting platform is installed at the top of the circular housing, and a motor is fixedly connected to the bottom center of the lifting platform.

[0009] The output shaft of the motor passes through the lifting plate and is fixedly connected to the mounting plate. A lifting mechanism is provided between the lifting plate and the chassis.

[0010] An annular sealing shell is fixedly connected to the upper outer wall of a circular chassis, and a guide mechanism is provided between the mounting plate and the annular sealing shell.

[0011] Preferably, the lifting mechanism includes several hydraulic rods vertically fixed to the upper end of the chassis, and the output shafts of the several hydraulic rods pass through the annular sealing shell and are fixedly connected to the lower end face of the mounting plate;

[0012] Preferably, both sides of the circular chassis are provided with heat dissipation holes, and dustproof meshes are fixedly connected inside the heat dissipation holes. A cable groove is provided below the side of the circular chassis near the heat dissipation holes.

[0013] Preferably, the guiding mechanism includes an annular guide rail fixed to the bottom wall of the annular sealing shell, and a plurality of roller brackets arranged at the bottom end of the mounting plate with equal arcs. The roller brackets are rotatably connected to the annular guide rail through bearings.

[0014] Preferably, a sealing ring is fixedly attached to the upper end of the annular sealing shell, a sealing ring is fixedly connected to the bottom end of the mounting plate, and an annular groove that slides and matches the sealing ring is provided inward at the top center of the sealing ring.

[0015] Preferably, standard bolt holes are provided on both the chassis and the mounting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The rotating base of this industrial robot, through the linkage lifting design of the lifting plate and hydraulic rod, allows the annular guide rail, rollers and motor inside the annular sealed shell to be raised and exposed synchronously with the mounting plate, realizing the rapid replacement of vulnerable parts and convenient maintenance of the motor. It completely solves the maintenance difficulties caused by the fixed connecting plate in the traditional structure and greatly reduces equipment downtime.

[0018] 2. The rotating base of this industrial robot adopts a dynamic sliding sealing structure of sealing ring and sealing ring, which continuously prevents external debris from entering the mating area of ​​the annular guide rail and roller during the rotation of the mounting plate. This not only avoids the decrease in guiding accuracy caused by the wear of impurities, but also extends the service life of the core moving parts, and overcomes the pollution and wear defects caused by open sliding contact in the prior art. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Chassis; 2. Circular housing; 3. Lifting platform; 4. Motor; 5. Mounting plate; 6. Annular sealing shell; 7. Hydraulic rod; 8. Heat dissipation hole; 9. Dustproof net; 10. Cable tray; 11. Annular guide rail; 12. Roller bracket; 13. Roller; 14. Sealing ring; 15. Sealing ring; 16. Annular groove. Detailed Implementation

[0023] 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.

[0024] like Figure 1-3 As shown, this utility model provides a technical solution:

[0025] A rotating base for an industrial robot includes a chassis 1, with a circular housing 2 fixedly connected to its top center. A lifting platform 3 is mounted on the upper end of the circular housing 2, and a motor 4 is fixedly connected to the bottom center of the lifting platform 3. The output shaft of the motor 4 passes through the lifting platform 3 and is fixedly connected to a mounting plate 5. A lifting mechanism is provided between the lifting platform 3 and the chassis 1. The lifting mechanism includes several hydraulic rods 7 vertically fixed to the upper end of the chassis 1. The output shafts of the hydraulic rods 7 pass through an annular sealing shell 6 and are fixedly connected to the lower end face of the mounting plate 5. Ventilation holes 8 are provided on both sides of the circular housing 2, and dustproof nets 9 are fixedly connected inside the ventilation holes 8. A wire mesh is provided on the lower side of the circular housing 2 near the ventilation holes 8. The cable trough 10 and the annular sealing shell 6 are fixedly connected to the upper outer wall of the circular chassis 2. A guide mechanism is provided between the mounting plate 5 and the annular sealing shell 6. The guide mechanism includes an annular guide rail 11 fixed to the inner bottom wall of the annular sealing shell 6, and several roller brackets 12 arranged at the bottom of the mounting plate 5 with equal arc. The roller brackets 12 are rotatably connected to the rollers 13 that are rolledly connected to the annular guide rail 11 through bearings. A sealing ring 14 is fixedly fixed to the upper end of the annular sealing shell 6. A sealing ring 15 is fixedly connected to the bottom end of the mounting plate 5. An annular groove 16 that slides and matches the sealing ring 15 is opened inward from the top center of the sealing ring 14. Standard bolt holes are opened on both the chassis 1 and the mounting plate 5.

[0026] In this embodiment, the linkage lifting design of the lifting plate 3 and the hydraulic rod 7 allows the annular guide rail 11, roller 13 and motor 4 inside the annular sealing shell 6 to be raised and exposed synchronously with the mounting plate 5, realizing the rapid replacement of vulnerable parts and convenient maintenance of the motor 4. This completely solves the maintenance difficulties caused by the fixed connecting plate in the traditional structure and greatly reduces equipment downtime.

[0027] Furthermore, a dynamic sliding sealing structure of sealing ring 14 and sealing ring 15 is adopted to continuously prevent external debris from entering the mating area of ​​annular guide rail 11 and roller 13 during the rotation of mounting plate 5. This not only avoids the decrease in guiding accuracy caused by impurity wear, but also extends the service life of core moving parts, overcoming the pollution and wear defects caused by open sliding contact in the prior art.

[0028] Working principle: The chassis 1 supports the lifting plate 3 via a circular housing 2 at its top center. A motor 4 at the bottom center of the lifting plate 3 drives the mounting plate 5 to rotate horizontally via its output shaft. Simultaneously, a lifting mechanism between the lifting plate 3 and the chassis 1 uses several vertically arranged hydraulic rods 7 to push the mounting plate 5 for vertical adjustment. Ventilation holes 8 on both sides of the circular housing 2, along with internally fixed dustproof nets 9, provide heat dissipation and dust protection for the motor 4. Cable trays 10 located below the ventilation holes 8 are used for power supply and control cables, and are fixed in place. The annular sealing shell 6, which is attached to the outer wall of the upper end of the circular housing 2, and the mounting plate 5 are guided by a guide mechanism to achieve rotational guidance. The guide mechanism consists of an annular guide rail 11 fixed to the inner bottom wall of the annular sealing shell 6 and several roller brackets 12 arranged at the bottom of the mounting plate 5 with equal arc. The roller brackets 12 form a rolling fit with the annular guide rail 11 through the rollers 13 rotating by the bearing to ensure rotational stability. The sealing ring 14 fixed at the upper end of the annular sealing shell 6 and the sealing ring 15 at the bottom of the mounting plate 5 form a dynamic seal through the sliding matching annular groove 16 to prevent the intrusion of external impurities.

[0029] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotating base for an industrial robot, characterized in that: include The chassis (1) has a circular housing (2) fixedly connected to its top center. The upper end of the circular housing (2) is provided with a lifting plate (3), and the lower end of the lifting plate (3) is fixedly connected with a motor (4). The output shaft of the motor (4) passes through the lifting plate (3) and is fixedly connected to the mounting plate (5). A lifting mechanism is provided between the lifting plate (3) and the chassis (1). An annular sealing shell (6) is fixedly connected to the upper outer wall of the circular chassis (2), and a guide mechanism is provided between the mounting plate (5) and the annular sealing shell (6); The lifting mechanism includes several hydraulic rods (7) vertically fixed to the upper end of the chassis (1), and the output shafts of the several hydraulic rods (7) pass through the annular sealing shell (6) and are fixedly connected to the lower end face of the mounting plate (5); The circular chassis (2) has heat dissipation holes (8) on both sides of its walls. Dustproof nets (9) are fixedly connected inside the heat dissipation holes (8). A cable groove (10) is provided on the lower side of the circular chassis (2) near the heat dissipation holes (8). The guiding mechanism includes an annular guide rail (11) fixed to the bottom wall of the annular sealing shell (6) and several roller brackets (12) arranged at the bottom of the mounting plate (5) with equal arc. The roller brackets (12) are connected to the rollers (13) that are rotatably connected to the annular guide rail (11) through bearings. The upper end of the annular sealing shell (6) is fixed with a sealing ring (14), and the bottom end of the mounting plate (5) is fixedly connected with a sealing ring (15). The top center of the sealing ring (14) is provided with an annular groove (16) that slides and matches the sealing ring (15). Standard bolt holes are provided on both the chassis (1) and the mounting plate (5).

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