Seven shaft of closed robot

Abstract

The utility model belongs to the technical field of robots, and particularly relates to a closed robot seventh shaft which comprises a bottom plate, mounting plates are fixedly connected to the left end and the right end of the bottom plate respectively, a motor is fixedly mounted on the side wall of the mounting plate on the left side, and a coupler is fixedly connected to the output end of the motor and rotationally connected with the mounting plate on the left side. The other end of the coupler is fixedly connected with a screw rod, the other end of the screw rod is rotationally connected with the right side mounting plate, the side wall of the screw rod is in threaded connection with a screw sleeve, and a limiting piece is arranged between the two mounting plates; a fixing plate is fixedly connected to the top of the threaded sleeve, a protective cover is fixedly connected to the side wall of the fixing plate, a through hole corresponding to the threaded rod is formed in the side wall of the protective cover, and shielding curtains are fixedly connected to the left side wall and the right side wall of the protective cover correspondingly. According to the device, the seventh shaft can be protected in a closed mode, impurities attached to the seventh shaft can be removed, and the service life of the seventh shaft is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of robot technology, and specifically relates to a seventh axis of a closed robot. Background Art

[0002] Traditional industrial robots usually have six axes of freedom. In some specific processing environments, such as welding, grinding, inspection, gluing and other processes, due to the different sizes of processing sites and parts, the use of traditional six-axis robots is bound to have certain processing dead angles. Therefore, applying the robot's seventh axis to the processing environment can increase the robot's range of motion and improve processing flexibility. The general robot's seventh axis is also called a ground rail, ceiling rail or vertical rail.

[0003] The seventh axis currently used generally adopts a drag chain or a motor direct drive, and the seventh axis is in an exposed state. When the robot is processing parts, impurities (such as grinding chips, paint, welding sparks, etc.) generated will fall on the seventh axis. If things go on like this for a long time, on the one hand, it will affect the running accuracy of the seventh axis, and on the other hand, it will cause damage to some precision facilities and affect their service life. The seventh axis cannot be conveniently sealed and protected, and it is also not convenient to clean the impurities. Utility Model Content

[0004] The purpose of the utility model is to provide a closed seventh axis of a robot, which can not only seal and protect the seventh axis, but also clean the impurities attached to the seventh axis, thereby extending its service life.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A seventh axis of a closed robot, comprising a bottom plate, the left and right ends of the bottom plate are respectively fixedly connected with mounting plates, a motor is fixedly installed on the side wall of the left mounting plate, a coupling is fixedly connected to the output end of the motor, the coupling is rotatably connected to the left mounting plate, the other end of the coupling is fixedly connected to a screw, the other end of the screw is rotatably connected to the right mounting plate, a screw sleeve is threadedly connected to the side wall of the screw, and a limiter is arranged between the two mounting plates;

[0007] A fixing plate is fixedly connected to the top of the screw sleeve, a protective cover is fixedly connected to the side wall of the fixing plate, a through hole corresponding to the screw is opened on the side wall of the protective cover, a shielding curtain is fixedly connected to the left and right side walls of the protective cover respectively, the other end of the shielding curtain is fixedly connected to the mounting plate, and a cleaning assembly is arranged on the top surface of the fixing plate.

[0008] The limiting member comprises a positioning rod fixedly connected between two mounting plates, a positioning ring is fixedly connected to the side wall of the screw sleeve, and the positioning rod penetrates the positioning ring and is movably connected to the positioning ring.

[0009] The cleaning assembly includes connecting plates that are symmetrically fixedly connected to the top surface of the fixed plate, the connecting plates are arranged in a Z shape, and the side walls of the connecting plates are movably connected to a plurality of nozzles. The side walls of the connecting plates are provided with air inlet holes, the air inlet holes are connected to the nozzles, the air inlet holes are fixedly connected to the same air inlet pipe, and the side walls of the air inlet pipes are fixedly connected to a joint.

[0010] The side wall of the connecting plate is provided with a plurality of spherical grooves, one end of the nozzle is spherical, and the nozzle is adapted to the spherical grooves.

[0011] The front and rear side walls of the bottom plate are respectively fixedly connected with a plurality of connecting pieces.

[0012] The front and rear side walls of the bottom plate are respectively provided with limiting grooves, and the protective cover is slidably connected to the limiting grooves.

[0013] The technical effects achieved by this utility model are:

[0014] The seventh axis of a closed robot of this utility model cooperates with each other among a bottom plate, a motor, a screw, a shielding curtain, a fixing plate and a cleaning component, etc. The shielding curtain can be used to provide closed protection for driving components such as the screw on the bottom plate, thereby reducing the accuracy impact caused by dust impurities and extending the service life of the driving components; and the cleaning component can be used to blow away impurities attached to the shielding curtain to ensure the cleanliness of the seventh axis, extend its service life, and thus improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of this practical embodiment;

[0016] Figure 2 It is a structural schematic diagram of the screw rod of this practical embodiment;

[0017] Figure 3 It is a partial structural schematic diagram of the fixing plate of the practical embodiment;

[0018] Figure 4 It is a partial structural schematic diagram of the cleaning component of this practical embodiment.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Base plate; 2. Mounting plate; 3. Motor; 4. Coupling; 5. Screw; 6. Screw sleeve; 7. Positioning rod; 8. Positioning ring; 9. Fixing plate; 10. Protective cover; 11. Shielding curtain; 12. Through hole; 13. Connecting plate; 14. Air inlet hole; 15. Nozzle; 16. Spherical groove; 17. Air inlet pipe; 18. Joint; 19. Connector; 20. Limiting groove. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] like Figure 1-Figure 4 As shown, a closed robot seventh axis includes a base plate 1, the left and right ends of the base plate 1 are respectively fixedly connected with mounting plates 2, a motor 3 is fixedly installed on the side wall of the left mounting plate 2, a coupling 4 is fixedly connected to the output end of the motor 3, the coupling 4 is rotatably connected to the left mounting plate 2, the other end of the coupling 4 is fixedly connected to a screw 5, the other end of the screw 5 is rotatably connected to the right mounting plate 2, a screw sleeve 6 is threadedly connected to the side wall of the screw 5, and a limiting member is arranged between the two mounting plates 2;

[0023] A fixing plate 9 is fixedly connected to the top of the screw sleeve 6, a protective cover 10 is fixedly connected to the side wall of the fixing plate 9, a through hole 12 corresponding to the screw rod 5 is opened on the side wall of the protective cover 10, a shielding curtain 11 is fixedly connected to the left and right side walls of the protective cover 10 respectively, the other end of the shielding curtain 11 is fixedly connected to the mounting plate 2, and a cleaning assembly is arranged on the top surface of the fixing plate 9.

[0024] Among them, the shielding curtain 11 is a V-shaped folding design with a certain degree of ductility. When the fixing plate 9 and the protective cover 10 move, the shielding curtain 11 can be folded and stretched, and the shielding curtain 11 can be made of rubber or plastic material, which is low in cost and easy to replace.

[0025] like Figure 2 As shown, the limiting member includes a positioning rod 7 fixedly connected between the two mounting plates 2, a positioning ring 8 fixedly connected to the side wall of the screw sleeve 6, the positioning rod 7 passes through the positioning ring 8 and is movably connected thereto, and the positioning ring 8 is fixedly connected to the fixing plate 9. By setting the limiting member, on the one hand, the screw sleeve 6 can be limited to ensure that the fixing plate 9 is always in a horizontal state of movement, and on the other hand, the fixing plate 9 can be supported to disperse the gravity of the robot to avoid deformation of the screw 5 under force during long-term use.

[0026] like Figure 3 and Figure 4 As shown, the cleaning assembly includes connecting plates 13 which are symmetrically fixedly connected to the top surface of the fixed plate 9, the connecting plate 13 is arranged in a Z shape, and a plurality of nozzles 15 are movably connected to the side wall of the connecting plate 13. The side wall of the connecting plate 13 is provided with air inlet holes 14, the air inlet holes 14 are connected to the nozzles 15, the air inlet holes 14 are fixedly connected with the same air inlet pipe 17, and the side wall of the air inlet pipe 17 is fixedly connected with a joint 18.

[0027] Specifically, before use, the joint 18 can be adjusted to a suitable angle to blow impurities attached to the blackout curtain 11 to both sides, and the number and angle of the nozzles 15 can be determined according to actual needs. No limit is performed in this solution. In addition, a number of screw holes can be opened on the surface of the fixing plate 9 to facilitate the adjustment of the position of the connecting plate 13 by bolts and to clean different positions of the blackout curtain 11.

[0028] The side wall of the connecting plate 13 is provided with a plurality of spherical grooves 16, one end of the nozzle 15 is spherical, and the nozzle 15 is adapted to the spherical groove 16. By adopting the connection mode of the spherical groove 16, the nozzle 15 can be directed to multiple angles to achieve the purpose of uniform cleaning over a wide range.

[0029] like Figure 1 As shown, the front and rear side walls of the bottom plate 1 are respectively fixedly connected with a plurality of connectors 19. The connectors 19 can be locking members or embedded members, which are selected according to the installation requirements of the on-site operation site and are not specifically limited here.

[0030] like Figure 1 and Figure 2 As shown, the front and rear side walls of the bottom plate 1 are respectively provided with limiting grooves 20, and the protective cover 10 is slidably connected with the limiting grooves 20. By providing the limiting grooves 20, the sealing performance of the protective cover 10 can be further enhanced, and external impurities can be effectively isolated.

[0031] The working principle of the utility model is as follows: the robot can be installed by using the fixing plate 9. When the robot needs to be driven to move, the motor 3 is started, the motor 3 drives the screw 5 to rotate through the coupling 4, and the screw 5 drives the fixing plate 9 and the robot to move through the screw sleeve 6, thereby increasing the processing range of the robot. During the movement of the fixing plate 9, the shielding curtain 11 can be compressed and stretched by the protective cover 10, which is used to seal and protect the driving components on the bottom plate 1, so as to prevent impurities generated during the processing from adhering to the driving components, affecting their movement accuracy, and prolonging their service life.

[0032] When there are many impurities attached to the shielding curtain 11, the air inlet pipe 17 can be connected to the external air supply equipment through the joint 18, and air flow is injected into the air inlet pipe 17. The air flow enters the air inlet hole 14 and is sprayed out from multiple nozzles 15. The nozzles 15 are adjusted to different directions, so that the shielding curtain 11 can be evenly blown away, reducing the attachment of impurities and improving the surface cleanliness of the seventh axis.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A closed robot seventh axis, characterized in that: The invention comprises a bottom plate (1), wherein the left and right ends of the bottom plate (1) are respectively fixedly connected to mounting plates (2), a motor (3) is fixedly installed on the side wall of the left mounting plate (2), a coupling (4) is fixedly connected to the output end of the motor (3), the coupling (4) is rotatably connected to the left mounting plate (2), the other end of the coupling (4) is fixedly connected to a screw rod (5), the other end of the screw rod (5) is rotatably connected to the right mounting plate (2), a screw sleeve (6) is threadedly connected to the side wall of the screw rod (5), and a limiting member is arranged between the two mounting plates (2); The top of the screw sleeve (6) is fixedly connected to a fixing plate (9), the side wall of the fixing plate (9) is fixedly connected to a protective cover (10), the side wall of the protective cover (10) is provided with a through hole (12) corresponding to the screw rod (5), the left and right side walls of the protective cover (10) are respectively fixedly connected to a shielding curtain (11), the other end of the shielding curtain (11) is fixedly connected to the mounting plate (2), and a cleaning component is arranged on the top surface of the fixing plate (9).

2. The seventh axis of a closed robot according to claim 1, characterized in that: The limiting member comprises a positioning rod (7) fixedly connected between two mounting plates (2); a positioning ring (8) is fixedly connected to the side wall of the screw sleeve (6); and the positioning rod (7) passes through the positioning ring (8) and is movably connected thereto.

3. The seventh axis of a closed robot according to claim 1, characterized in that: The cleaning assembly comprises connecting plates (13) which are fixedly connected to the top surface of the fixing plate (9) in a left-right symmetrical manner, the connecting plates (13) are arranged in a Z shape, a plurality of nozzles (15) are movably connected to the side wall of the connecting plate (13), an air inlet hole (14) is opened on the side wall of the connecting plate (13), the air inlet hole (14) is communicated with the nozzle (15), the air inlet holes (14) are fixedly connected to the same air inlet pipe (17), and a joint (18) is fixedly connected to the side wall of the air inlet pipe (17).

4. The seventh axis of a closed robot according to claim 3, characterized in that: The side wall of the connecting plate (13) is provided with a plurality of spherical grooves (16); one end of the nozzle (15) is spherical, and the nozzle (15) is adapted to the spherical grooves (16).

5. The seventh axis of a closed robot according to claim 1, characterized in that: The front and rear side walls of the bottom plate (1) are respectively fixedly connected with a plurality of connecting pieces (19).

6. The seventh axis of a closed robot according to claim 1, characterized in that: The front and rear side walls of the bottom plate (1) are respectively provided with limiting grooves (20), and the protective cover (10) is slidably connected to the limiting grooves (20).

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