Air pipe connecting structure of robot

Abstract

The air pipe connecting structure of the robot relates to the technical field of robot accessories and comprises a suction cup main pipeline, a straight-through connecting block is installed at the lower end of the suction cup main pipeline, a circulation cavity is formed in the straight-through connecting block, and spherical shells are fixedly installed on the two sides of the straight-through connecting block. A universal ball is movably installed in the spherical shell, a straight-through pipe is fixedly installed in the universal ball, one end of the straight-through pipe extends into the circulation cavity, a connecting piece is installed at the other end of the straight-through pipe, an air pipe is arranged on the connecting piece, and the straight-through pipe communicates with the air pipe through the connecting piece. The straight-through pipe and the air pipe can flexibly rotate on the two sides of the straight-through connecting block, when the robot drives the suction cup main pipeline and the straight-through connecting block to rotate, the air pipe can be prevented from being twisted, and therefore the air pipe is prevented from being abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of robot accessories, in particular to an air pipe connection structure of a robot. Background Art

[0002] Robot arm suction cups are widely used in the industrial field. Suction cups installed on robot arms can be used to grab objects with smooth surfaces, such as glass plates and metal plates. At present, the pipes on the suction cups are usually connected to the gas supply pipes and exhaust pipes through three-way joints. The three-way pipe joints can separate the gas supplied to the suction cups and the gas exhausted when the suction cups are released, ensuring that the suction cups can quickly generate suction when needed and quickly release objects when needed, thereby improving the efficiency and accuracy of the operation.

[0003] However, when the robot is picking up and placing the wafer, the robot will rotate. Since the two air pipes on the three-way pipe joint are close to the rotating arm of the robot, and the air pipes and the three-way pipe joint are usually fixedly connected, the air pipes will be twisted when the robot rotates, causing friction between the air pipes and the robotic arm, which can easily cause wear on the air pipes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air pipe connection structure for a robot, which solves the technical problem that friction between the air pipe and the robot arm is likely to occur when the robot rotates.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a robot air pipe connection structure, comprising a suction cup main pipe, a straight connection block is installed at the lower end of the suction cup main pipe, a flow cavity is opened inside the straight connection block, and a ball shell is fixedly installed on both sides of the straight connection block, a universal ball is movably installed inside the ball shell, a straight pipe is fixedly installed inside the universal ball, one end of the straight pipe extends to the inside of the flow cavity, and a connecting piece is installed at the other end of the straight pipe, an air pipe is arranged on the connecting piece, and the straight pipe and the air pipe are connected through the connecting piece;

[0006] The connector comprises a sleeve, a slot is provided inside the sleeve, the end of the air pipe is inserted into the slot, a locking ring is provided at one end of the sleeve, and the end of the straight-through pipe is threadedly connected to the locking ring.

[0007] Furthermore, a conical sleeve is arranged inside the slot, and a plurality of fastening grooves are arranged outside the conical sleeve.

[0008] Furthermore, a threaded sleeve is threadedly connected to the end of the air pipe, one end of the threaded sleeve is threadedly connected to the outside of the sleeve shell, and a sealing ring is installed inside the threaded sleeve.

[0009] Furthermore, a movable hole is symmetrically opened on the spherical shell, the ratio of the diameter of the straight-through pipe to the diameter of the movable hole is 1:1.8 to 1:2.5, and a flexible gasket is installed on the inner wall of the movable hole.

[0010] Furthermore, an air guide platform is provided on the inner bottom wall of the flow cavity, and the air guide platform is arranged in an arch shape.

[0011] Furthermore, an air guide hole is formed on the inner top wall of the circulation cavity, and the air guide hole is configured to be in a trumpet shape.

[0012] By means of the above technical solution, the utility model provides a robot trachea connection structure, which has at least the following beneficial effects:

[0013] 1. The utility model provides a universal ball, which can rotate freely in the ball shell, so that the straight pipe and the air pipe can rotate flexibly on both sides of the straight connection block. When the robot drives the suction cup main pipe and the straight connection block to rotate, the air pipe can be prevented from twisting, thereby avoiding wear of the air pipe.

[0014] 2. The utility model provides a connector, so that air pipes of different diameters can be installed on the connector, and then the air pipe is connected with the straight pipe through the connector, so as to provide different gas flows and pressures to the suction cup, so that the equipment is suitable for suction cups of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 for Figure 2 The enlarged view of point A is shown;

[0019] Figure 4 It is a partial structural schematic diagram of the utility model;

[0020] Figure 5 This is a schematic diagram of the connector structure of the utility model.

[0021] In the figure: 1. suction cup main pipeline; 2. straight connection block; 3. ball shell; 4. universal ball; 5. straight pipe; 6. connecting piece; 61. sleeve shell; 62. slot; 63. tapered sleeve; 64. locking ring; 7. air pipe; 8. threaded sleeve; 9. sealing ring; 10. air guide hole; 11. movable hole; 12. circulation cavity; 13. air guide platform. DETAILED DESCRIPTION

[0022] 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.

[0023] The existing robot will rotate during the process of picking up and placing sheets, and the two air pipes on the three-way pipe joint connected to the robot's suction cup main pipeline are close to the robot's rotating arm, and the air pipes and the three-way pipe joint are usually fixedly connected. When the robot rotates, the air pipes will cause twisting, resulting in friction between the air pipes and the robotic arm, which can easily cause wear on the air pipes.

[0024] To solve the above defects in the use of the trachea, please refer to Figure 1-Figure 5The utility model provides a robot air pipe connection structure, which can change the three-way pipe joint into a straight connection block 2, and flexibly connect the air pipe 7 to the side of the straight connection block 2, so that the air pipe 7 can rotate flexibly to avoid wear of the air pipe 7. The air pipe connection structure is based on a suction cup main pipeline 1, and the lower end of the suction cup main pipeline 1 is installed with a straight connection block 2, and the upper end of the suction cup main pipeline 1 is connected with the suction cup on the robot, and the suction cup can be supplied with air or exhausted through the suction cup main pipeline 1. A circulation cavity 12 is provided inside the straight connection block 2, and the lower end of the suction cup main pipeline 1 is connected with the circulation cavity 12, and ball shells 3 are fixedly installed on both sides of the straight connection block 2, and a universal ball 4 is movably installed inside the ball shell 3, and the outside of the universal ball 4 can be coated with lubricating oil, and a straight pipe 5 is fixedly installed inside the universal ball 4, and one end of the straight pipe 5 extends to the inside of the circulation cavity 12, and a connecting piece 6 is installed at the other end of the straight pipe 5, and the air pipe 7 is arranged on the connecting piece 6. The two ends of the straight connection block 2 7 are respectively an air supply pipe and an exhaust pipe, which are convenient for the air intake and exhaust operations of the suction cup. The straight pipe 5 and the air pipe 7 are connected through a connector 6, wherein a slot 62 is provided inside the casing 61, and the end of the air pipe 7 is inserted into the slot 62. A locking ring 64 is provided at one end of the casing 61, and the end of the straight pipe 5 is threadedly connected to the locking ring 64, so that the connection between the straight pipe 5 and the air pipe 7 can be achieved. Since the universal ball 4 can rotate freely in the ball shell 3, the straight pipe 5 and the air pipe 7 can be flexibly rotated on both sides of the straight connection block 2. When the robot drives the suction cup main pipeline 1 and the straight connection block 2 to rotate, the air pipe 7 may not rotate with the straight connection block 2, so as to prevent the air pipe 7 from twisting, thereby avoiding wear of the air pipe 7.

[0025] In actual processing, due to the different sizes and shapes of workpieces, it may be necessary to use suction cups of different specifications, and air pipes 7 of different diameters will be used. In order to facilitate the equipment to provide different gas flow rates and pressures to the suction cups, a conical sleeve 63 is provided inside the slot 62, and a plurality of fastening grooves are provided outside the conical sleeve 63. The end of the air pipe 7 is inserted into the slot 62 and sleeved on the conical sleeve 63 until the inner wall of the air pipe 7 abuts against the conical sleeve 63, that is, the air pipe 7 can no longer be inserted into the slot 62, and the preliminary installation of the air pipe 7 is completed. The fastening groove can increase the friction between the air pipe 7 and the conical sleeve 63, so that the air pipe 7 can be preliminarily fixed to prevent the air pipe 7 from falling off. Since the conical sleeve 63 is conical, and the diameter of the conical sleeve 63 gradually increases from the end close to the air pipe 7 to the end away from the air pipe 7, the conical sleeve 63 can be installed for air pipes 7 of different diameters.

[0026] After the air pipe 7 is installed in the casing 61, the air pipe 7 needs to be fixed. Therefore, the end of the air pipe 7 is threadedly connected with a threaded sleeve 8, one end of the threaded sleeve 8 is threadedly connected to the outside of the casing 61, and a sealing ring 9 is installed inside the threaded sleeve 8. The threaded sleeve 8 is rotated to thread it on the casing 61, so that the air pipe 7 can be fixed on the casing 61. The sealing ring 9 can seal the connection between the threaded sleeve 8 and the air pipe 7 to reduce the risk of air leakage.

[0027] In order to provide a certain rotation space for the straight-through tube 5, a movable hole 11 is symmetrically opened on the upper side of the spherical shell 3. The ratio of the diameter of the straight-through tube 5 to the diameter of the movable hole 11 is 1:1.8 to 1:2.5, and a flexible gasket is installed on the inner wall of the movable hole 11. The straight-through tube 5 can rotate flexibly in the movable hole 11. When the straight-through tube 5 rotates to the maximum angle, the straight-through tube 5 will contact the inner wall of the movable hole 11. The flexible gasket can effectively prevent the inner wall of the movable hole 11 from causing damage to the straight-through tube 5.

[0028] Reference Figure 2 As shown, the inner bottom wall of the circulation cavity 12 is provided with an air guide platform 13, which is arranged in an arch shape. The arched bottom wall can reduce the resistance of the gas when passing through the circulation cavity 12, thereby improving the flow characteristics of the gas. In addition, the inner top wall of the circulation cavity 12 is provided with an air guide hole 10, which is arranged in a trumpet shape, which can better guide the gas flow and improve the air supply and exhaust efficiency of the air pipe 7.

[0029] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robot air pipe connection structure, comprising a suction cup main pipe (1), characterized in that: A straight connection block (2) is installed at the lower end of the suction cup main pipeline (1), a flow cavity (12) is provided inside the straight connection block (2), and a ball shell (3) is fixedly installed on both sides of the straight connection block (2), a universal ball (4) is movably installed inside the ball shell (3), a straight pipe (5) is fixedly installed inside the universal ball (4), one end of the straight pipe (5) extends into the flow cavity (12), and a connecting piece (6) is installed at the other end of the straight pipe (5), an air pipe (7) is provided on the connecting piece (6), and the straight pipe (5) and the air pipe (7) are connected through the connecting piece (6); The connecting member (6) comprises a sleeve (61), a slot (62) is provided inside the sleeve (61), the end of the air pipe (7) is inserted into the slot (62), a locking ring (64) is provided at one end of the sleeve (61), and the end of the straight-through pipe (5) is threadedly connected to the locking ring (64).

2. The trachea connection structure according to claim 1, characterized in that: A conical sleeve (63) is arranged inside the slot (62), and a plurality of fastening grooves are arranged outside the conical sleeve (63).

3. The trachea connection structure according to claim 1, characterized in that: The end of the air pipe (7) is threadedly connected to a threaded sleeve (8), one end of the threaded sleeve (8) is threadedly connected to the outside of the sleeve shell (61), and a sealing ring (9) is installed inside the threaded sleeve (8).

4. The trachea connection structure according to claim 1, characterized in that: The spherical shell (3) is symmetrically provided with an active hole (11), the ratio of the diameter of the straight-through pipe (5) to the diameter of the active hole (11) is 1:1.8 to 1:2.5, and a flexible gasket is installed on the inner wall of the active hole (11).

5. The trachea connection structure according to claim 1, characterized in that: The inner bottom wall of the circulation cavity (12) is provided with an air guide platform (13), and the air guide platform (13) is arranged in an arch shape.

6. The trachea connection structure according to claim 1, characterized in that: An air guide hole (10) is provided on the inner top wall of the circulation cavity (12), and the air guide hole (10) is arranged in a trumpet shape.

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