Rotary joint of industrial robot

Abstract

The utility model relates to the technical field of rotating joints of industrial robots, and discloses a rotating joint of an industrial robot, which comprises an adjusting sleeve, the top end of the adjusting sleeve is fixedly connected with a motor, the driving end of the motor is fixedly connected with a rotating block, and the left end of the outer part of the rotating block is fixedly connected with a rotating rod. A first supporting plate is fixedly connected to the left end of the rotating rod, a second supporting plate is fixedly connected to the bottom end of the interior of the adjusting sleeve, a rotating roller is rotationally connected to the left side of the exterior of the adjusting sleeve, a limiting block is fixedly connected to the left side of the adjusting sleeve, a rotating shaft is fixedly connected to the middle of the left end of the rotating roller, and a limiting column is fixedly connected to the bottom end of the rotating shaft. According to the utility model, the driving source is tightly connected to drive the joint to rotate at multiple angles, so that the wear resistance of a transmission system is ensured, the internal structure of the rotating joint is sealed, impurities such as dust and liquid dirt are effectively prevented from entering, and joint parts are protected from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial robot rotation joints, in particular to a rotation joint of an industrial robot. Background Art

[0002] An industrial robot is defined as "an automatically controlled, reprogrammable, multi-purpose machine that can program more than three axes. It can be fixed or mobile and used in industrial automation applications." An industrial robot is defined as "a machine whose mechanism is usually composed of a series of components that are hinged or relatively sliding. It usually has several degrees of freedom for grasping or moving objects (tools or workpieces)." Therefore, an industrial robot may be understood as a mechanical and electronic device with humanoid arms, wrists, and hand functions; it can move any object or tool according to the time-varying requirements of spatial posture (position and posture), thereby completing the operation requirements of a certain industrial production.

[0003] After searching, the Chinese patent with the announcement number CN218659156U discloses a rotary joint structure of an industrial robot, including a first connecting block, a U-shaped second connecting block and two rotating arm mechanisms. The rotary joint structure of the industrial robot, by setting a rotating arm mechanism, can realize the axial rotation function of a single mechanical arm through the rotating arm mechanism in addition to realizing the rotation function between the two mechanical arms through the first connecting block and the second connecting block. In the rotating arm mechanism, the fixed seat is rotatably connected to the rotating seat through a rotating ring, and a servo motor is arranged inside the fixed seat, so that the rotating seat can rotate under the drive of the servo motor, thereby realizing the axial rotation function of a single mechanical arm. In the actual production operation of the industrial robot, the rotation of the mechanical arm can more flexibly perform tasks such as grasping and placing, thereby improving work efficiency and thus improving the practicality of the structure.

[0004] The working principle of the above patent mentions that "when the dual-axis motor 5 is running, the output shaft thereof rotates to drive the second connecting block 2 to rotate, thereby adjusting the angle between the two mechanical arms, and the servo motor 13 in the rotating arm mechanism can drive the rotating seat 9 to rotate after being started, thereby causing the mechanical arm installed at the outer end of the rotating arm mechanism to rotate. The flexibility of the mechanical arm of the entire industrial robot is improved when it is working, thereby improving the overall work efficiency". However, in the above document, rotation is achieved through dual-axis motors and servo motors, but each rotating joint of the industrial robot can often only rotate in one direction, which is still subject to certain limitations in the actual working process and is relatively inconvenient. In view of the above problems, a rotating joint of an industrial robot is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a rotary joint for an industrial robot, aiming to improve the problem of the inconvenience caused by the limited rotation direction in the prior art when the robot is operating.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rotary joint of an industrial robot comprises an adjusting sleeve, the top end of the adjusting sleeve is fixedly connected to a motor, the driving end of the motor is fixedly connected to a rotary block, the outer left end of the rotary block is fixedly connected to a rotary rod, the left end of the rotary rod is fixedly connected to a support plate 1, the inner bottom end of the adjusting sleeve is fixedly connected to a support plate 2, the outer left side of the adjusting sleeve is rotatably connected to a rotary roller, the left side of the adjusting sleeve is fixedly connected to a limited position block, the middle part of the left end of the rotary roller is fixedly connected to a rotary shaft, the bottom end of the rotary shaft is fixedly connected to a limited position column, the outer top end of the rotary shaft is fixedly connected to a clamping ring, the outer left end of the adjusting sleeve is rotatably connected to a coupling shaft, the right end of the coupling shaft is fixedly connected to a coupling assembly, a barrel groove is provided on the left side of the adjusting sleeve, a protective sleeve is fixedly connected to the outer right end of the adjusting sleeve, and an adjusting assembly is slidably connected to the outer left end of the adjusting sleeve;

[0008] As a further description of the above technical solution:

[0009] The coupling assembly comprises a U-shaped block and two slide grooves, the left end of the middle portion of the U-shaped block is fixedly connected to the right end of the coupling shaft, and the slide grooves are provided on the upper and lower sides of the U-shaped block;

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes four positioning blocks, two telescopic belts, two sleeves, a sleeve and a clamping hole, wherein the exterior of the two positioning blocks is fixedly connected to the exterior front side of the adjustment sleeve, the exterior of the positioning blocks is fixedly connected to the upper and lower ends of the right end of the telescopic belt, the left end of the telescopic belt is fixedly connected to the right end of the sleeve, the left ends of the two sleeves are fixedly connected to the exterior right end of the sleeve, and the clamping hole is opened on the right side of the sleeve;

[0012] As a further description of the above technical solution:

[0013] The top end of the rotating block is rotatably connected to the top end of the inner wall of the adjusting sleeve, and the top end of the rotating rod is slidably connected to the top end of the inner wall of the adjusting sleeve;

[0014] As a further description of the above technical solution:

[0015] The top end of the support plate 1 is slidably connected to the top end of the inner wall of the adjustment sleeve, and the outer portion of the roller is rotatably connected to the middle portion of the bottom end of the support plate 2;

[0016] As a further description of the above technical solution:

[0017] The outer portion of the rotating shaft is slidably connected to the inner wall of the sliding groove, and the top end of the clamping ring is slidably connected to the inner side of the U-shaped block;

[0018] As a further description of the above technical solution:

[0019] The top end of the limit column is rotatably connected to the outer bottom end of the adjustment sleeve, and the outer end of the coupling is rotatably connected to the middle of the bottom end of the support plate 1;

[0020] As a further description of the above technical solution:

[0021] The adjacent sides of the two telescopic belts are slidably connected to the outside of the adjusting sleeve, the outside of the sleeve plate is slidably connected to the outside of the adjusting sleeve, and the right side of the sleeve is slidably connected to the outside of the adjusting sleeve.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the cooperation of the motor, the rotating block, the rotating rod, the support plate 1, the support plate 2 and other components, the driving source is closely connected to drive the multi-angle rotation of the joint, ensuring the wear resistance and life of the transmission system.

[0024] 2. In the utility model, through the cooperation of the telescopic belt, sleeve, sleeve, card hole, protective cover and other components, the internal structure of the rotating joint is sealed, effectively preventing the entry of impurities such as dust and liquid dirt, so as to protect the joint components from damage and ensure long-term reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a rotary joint of an industrial robot proposed in the utility model;

[0026] Figure 2 This is a schematic diagram of the barrel structure of a rotary joint of an industrial robot proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of the rotating shaft structure of a rotating joint of an industrial robot proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the roller structure of a rotary joint of an industrial robot proposed by the utility model;

[0029] Figure 5 The utility model is a schematic diagram of a sleeve structure of a rotary joint of an industrial robot.

[0030] Legend:

[0031] 1. Adjustment sleeve; 2. Motor; 3. Rotating block; 4. Rotating rod; 5. Support plate 1; 6. Support plate 2; 7. Roller; 8. Limit block; 9. Rotating shaft; 10. Limit column; 11. Snap ring; 12. U-shaped block; 13. Slide; 14. Coupling; 15. Barrel groove; 16. Protective sleeve; 17. Positioning block; 18. Telescopic belt; 19. Sleeve plate; 20. Sleeve; 21. Card hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment: a rotary joint of an industrial robot, comprising an adjusting sleeve 1, a motor 2 is fixedly connected to the top of the adjusting sleeve 1, the adjusting sleeve 1 supports the motor 2, a rotating block 3 is fixedly connected to the driving end of the motor 2, the motor 2 drives the rotating block 3 to rotate, a rotating rod 4 is fixedly connected to the outer left end of the rotating block 3, a supporting plate 5 is fixedly connected to the left end of the rotating rod 4, and the rotating block 3 can be rotated with the supporting plate 5 through the connection of the rotating rod 4.

[0034] refer to Figure 2 , Figure 3 The inner bottom end of the adjusting sleeve 1 is fixedly connected with a supporting plate 2 6, the outer left side of the adjusting sleeve 1 is rotatably connected with a rotating roller 7, the left side of the adjusting sleeve 1 is fixedly connected with a limiting block 8, the supporting plate 2 6 and the limiting block 8 limit the position of the rotating roller 7, the middle part of the left end of the rotating roller 7 is fixedly connected with a rotating shaft 9, the rotation of the rotating roller 7 drives the rotating shaft 9 to rotate, the bottom end of the rotating shaft 9 is fixedly connected with a limiting column 10, the outer top end of the rotating shaft 9 is fixedly connected with a clamping ring 11, the limiting column 10 and the clamping ring 11 assist the rotating shaft 9 to rotate.

[0035] The outer left end of the adjusting sleeve 1 is rotatably connected with a coupling 14, and the right end of the coupling 14 is fixedly connected with a coupling assembly. The coupling 14 can be driven to rotate by the coupling assembly. A barrel groove 15 is provided on the left side of the adjusting sleeve 1, and a protective sleeve 16 is fixedly connected to the outer right end of the adjusting sleeve 1. The outer left end of the adjusting sleeve 1 is slidably connected with an adjusting assembly. The adjusting assembly protects the adjusting sleeve 1 and assists the rotation of the coupling 14. The coupling assembly includes a U-shaped block 12 and two slide grooves 13. The middle left end of the U-shaped block 12 is fixedly connected to the right end of the coupling 14, and the slide groove 13 is opened on the upper and lower sides of the U-shaped block 12. The opening of the slide groove 13 can limit the rotating shaft 9. Compared with the above-mentioned documents, the original device can be rotated and moved left and right at the same time, and rotation in two directions is carried out simultaneously, which effectively increases the flexibility of the device.

[0036] The top end of the limiting column 10 is rotatably connected to the inner bottom end of the adjusting sleeve 1. In order to limit the position of the rotating shaft 9, the outer end of the coupling 14 is rotatably connected to the middle part of the bottom end of the support plate 5. In order to ensure the stable rotation of the coupling 14, the top end of the rotating block 3 is rotatably connected to the top end of the inner wall of the adjusting sleeve 1, the top end of the rotating rod 4 is slidably connected to the top end of the inner wall of the adjusting sleeve 1, and the top end of the support plate 5 is slidably connected to the top end of the inner wall of the adjusting sleeve 1. In order to ensure the stable rotation of the coupling 14, the outer end of the roller 7 is rotatably connected to the middle part of the bottom end of the support plate 2 6. In order to limit the position of the fixed roller 7, the outer end of the rotating shaft 9 is slidably connected to the inner wall of the slide groove 13. The rotating shaft 9 slides in the slide groove 13 to drive the U-shaped block 12 to rotate. The top end of the retaining ring 11 is slidably connected to the inner side of the U-shaped block 12 to prevent the rotating shaft 9 from escaping from the U-shaped block 12 and the slide groove 13.

[0037] refer to Figure 4 , Figure 5 The adjustment component includes four positioning blocks 17, two telescopic belts 18, two sleeve plates 19, a sleeve 20 and a card hole 21, wherein the outside of the two positioning blocks 17 is fixedly connected to the external front side of the adjustment sleeve 1, and the outside of the positioning block 17 is fixedly connected to the upper and lower ends of the right end of the telescopic belt 18. The positioning block 17 fixes one side of the telescopic belt 18 on the adjustment sleeve 1, and the adjacent sides of the two telescopic belts 18 are slidably connected to the outside of the adjustment sleeve 1, the left end of the telescopic belt 18 is fixedly connected to the right end of the sleeve plate 19, and the left ends of the two sleeve plates 19 are fixedly connected to the external right end of the sleeve 20.

[0038] The outside of the sleeve 19 is slidably connected to the outside of the adjusting sleeve 1, and the right side of the sleeve 20 is slidably connected to the outside of the adjusting sleeve 1. When the sleeve 20 is driven by the internally fixed coupling 14 to slide on the outside of the adjusting sleeve 1, the sleeve 19 and the telescopic belt 18 will be pulled to slide on the outside of the adjusting sleeve 1. The card hole 21 is opened on the right side of the sleeve 20, and the card hole 21 is opened to fix and protect the coupling 14.

[0039] Working principle: When in use, the roller 7 is driven by an external driving source to rotate at the position of the limit block 8 and the support plate 6, so that the roller 7 drives the rotating shaft 9 to rotate. The rotating shaft 9 will slide in the slide groove 13 of the U-shaped block 12, and the U-shaped block 12 is driven by the rotating shaft 9 to rotate 360 ​​degrees, so that the protective sleeve 16 fixed externally by the transmission coupling 14 rotates in different positions. When the motor 2 is started, the rotating block 3 will be driven to connect and pull the support plate 5 to rotate through the rotating rod 4, so that the rotating rod 4 restricted by the support plate 5 pulls the rotating coupling 14 to slide left and right on the inner wall of the barrel groove 15 of the adjusting sleeve 1, thereby realizing the rotation of the coupling 14 with the rotating shaft 9 as the center.

[0040] During the rotation of the coupling 14, since the sleeve 19 is connected to the telescopic belt 18 and the sleeve 20, one side of the telescopic belt 18 is fixed to the outside of the adjusting sleeve 1. Therefore, when the sleeve 20 slides on the outside of the adjusting sleeve 1, the sleeve 19 will be pulled to pull the telescopic belt 18 to deform and reset, so that the barrel tank 15 will not be exposed to the outside, thereby achieving the sealing of the inside of the adjusting sleeve 1 to prevent the entry of dust and liquid impurities.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary joint of an industrial robot, comprising an adjustment sleeve (1), characterized in that: The top end of the adjusting sleeve (1) is fixedly connected to a motor (2), the driving end of the motor (2) is fixedly connected to a rotating block (3), the left end of the outer side of the rotating block (3) is fixedly connected to a rotating rod (4), the left end of the rotating rod (4) is fixedly connected to a supporting plate 1 (5), the bottom end of the inner side of the adjusting sleeve (1) is fixedly connected to a supporting plate 2 (6), the left side of the outer side of the adjusting sleeve (1) is rotatably connected to a rotating roller (7), the left side of the adjusting sleeve (1) is fixedly connected to a limiting block (8), and the middle of the left end of the rotating roller (7) is fixedly connected to the limiting block (8). A rotating shaft (9) is fixedly connected, the bottom end of the rotating shaft (9) is fixedly connected to a limiting column (10), the external top end of the rotating shaft (9) is fixedly connected to a clamping ring (11), the external left end of the adjusting sleeve (1) is rotatably connected to a coupling shaft (14), the right end of the coupling shaft (14) is fixedly connected to a connecting assembly, a barrel groove (15) is provided on the left side of the adjusting sleeve (1), the external right end of the adjusting sleeve (1) is fixedly connected to a protective sleeve (16), and the external left end of the adjusting sleeve (1) is slidably connected to an adjusting assembly.

2. The rotary joint of an industrial robot according to claim 1, characterized in that: The coupling assembly comprises a U-shaped block (12) and two slide grooves (13), the left end of the middle portion of the U-shaped block (12) is fixedly connected to the right end of the coupling shaft (14), and the slide grooves (13) are provided on the upper and lower sides of the U-shaped block (12).

3. The rotary joint of an industrial robot according to claim 1, characterized in that: The adjustment component comprises four positioning blocks (17), two telescopic belts (18), two sleeve plates (19), a sleeve (20) and a clamping hole (21), wherein the exterior of the two positioning blocks (17) is fixedly connected to the exterior front side of the adjustment sleeve (1), the exterior of the positioning blocks (17) is fixedly connected to the upper and lower ends of the right end of the telescopic belt (18), the left end of the telescopic belt (18) is fixedly connected to the right end of the sleeve plate (19), the left ends of the two sleeve plates (19) are fixedly connected to the exterior right end of the sleeve (20), and the clamping hole (21) is opened on the right side of the sleeve (20).

4. The rotary joint of an industrial robot according to claim 1, characterized in that: The top end of the rotating block (3) is rotatably connected to the top end of the inner wall of the adjusting sleeve (1), and the top end of the rotating rod (4) is slidably connected to the top end of the inner wall of the adjusting sleeve (1).

5. The rotary joint of an industrial robot according to claim 1, characterized in that: The top end of the support plate 1 (5) is slidably connected to the top end of the inner wall of the adjustment sleeve (1), and the outside of the rotating roller (7) is rotatably connected to the middle part of the bottom end of the support plate 2 (6).

6. The rotary joint of an industrial robot according to claim 2, characterized in that: The outside of the rotating shaft (9) is slidably connected to the inner wall of the sliding groove (13), and the top end of the clamping ring (11) is slidably connected to the inner side of the U-shaped block (12).

7. The rotary joint of an industrial robot according to claim 1, characterized in that: The top end of the limit column (10) is rotatably connected to the outer bottom end of the adjustment sleeve (1), and the outer end of the coupling shaft (14) is rotatably connected to the middle part of the bottom end of the support plate 1 (5).

8. The rotary joint of an industrial robot according to claim 3, characterized in that: The adjacent sides of the two telescopic belts (18) are slidably connected to the outside of the adjustment sleeve (1), the outside of the sleeve plate (19) is slidably connected to the outside of the adjustment sleeve (1), and the right side of the sleeve (20) is slidably connected to the outside of the adjustment sleeve (1).

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