CN215747352U

CN215747352U - Electric welding robot with multi-freedom-degree rotating arms

Info

Publication number: CN215747352U
Application number: CN202122311841.2U
Authority: CN
Inventors: 沈峥; 贝科东
Original assignee: Nantong Tongou Intelligent Equipment Technology Co ltd
Current assignee: Nantong Tongou Intelligent Equipment Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-08
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses an electric welding robot with multiple-degree-of-freedom rotating arms, which comprises a bottom plate, wherein a first motor is arranged on the upper surface of the bottom plate, a turntable is arranged at the output end of the first motor, a second motor is arranged on the right side of the upper surface of the turntable, a worm is fixedly connected with the output end of the second motor, a support column is fixedly connected on the left side of the upper surface of the turntable, a gear meshed with the worm is rotatably connected at the upper end of the support column, a first adjusting arm is fixedly connected on the front surface of the gear, a second adjusting arm is hinged at the upper end of the first adjusting arm, a U-shaped seat is arranged at the left end of the second adjusting arm, a third motor is arranged in the U-shaped seat, and an electric welding head is arranged on the surface of the third motor. Can freely rotate the electric welding head in multiple directions.

Description

Electric welding robot with multi-freedom-degree rotating arms

Technical Field

The utility model relates to the technical field of electric welding robots, in particular to an electric welding robot with a multi-degree-of-freedom rotating arm.

Background

An industrial robot is a multipurpose automatic control manipulator capable of being programmed repeatedly, at present, an electric welding robot can be fully automated basically, however, when the electric welding robot is used, certain defects still exist, for example, the electric welding robot needs to be maintained regularly, but the electric welding robot does not have corresponding convenient maintenance setting, meanwhile, a standby power supply is not arranged in the power-off process, the working efficiency is further influenced, and certain adverse effects are caused in the actual using process.

For this reason, the publication is CN209349743U discloses a full-automatic electric welding robot, which comprises a mounting seat, the last fixed surface of control box is connected with first servo motor, first servo motor's last surface swing joint has first robot arm, the upper end swing joint of first robot arm has the second robot arm, one side outer wall fixedly connected with second servo motor that the second robot arm is close to the maintenance toolbox, the upper end swing joint of second robot arm has the third robot arm, one side outer wall fixedly connected with third servo motor that second servo motor was kept away from to the third robot arm, one side outer wall top position that the third robot arm is close to second servo motor is equipped with fixed cover, the one end that the third robot arm was kept away from to fixed cover is equipped with the electric welding head.

To foretell full-automatic electric welding machine ware people, its easy access has increased stand-by power supply, can guarantee electric welding machine ware people's normal work after the outage, promotes work efficiency greatly, still exists following not enoughly: its electric welding robot's weight is pressed mostly at first servo motor, needs the motor of big moment of torsion, increases manufacturing cost, and first servo motor not only load is great for long-time during operation, still can influence first servo motor's life, and second servo motor also has the condition of big load, if big torque motor is also chooseed for use to second servo motor, and its weight can increase, leads to first servo motor load to increase.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric welding robot with a multi-degree-of-freedom rotating arm, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an electric welding robot with a multi-degree-of-freedom rotating arm comprises a bottom plate, wherein a first motor is mounted on the upper surface of the bottom plate, a rotary table is arranged at the output end of the first motor, a supporting cylinder is arranged on the upper surface of the bottom plate, a plurality of groups of steel balls are mounted on the upper end surface of the supporting cylinder, and the steel balls abut against the lower surface of the rotary table;

the first motor is vertically arranged, the output end of the first motor is upward, the supporting cylinder is sleeved around the first motor and is not contacted with the first motor, the lower surface of the rotary table is provided with an annular groove, and the radian of the annular groove is matched with the diameter of the steel ball, so that the contact area between the steel ball and the rotary table is larger;

a second motor is installed on the right side of the upper surface of the rotary table, a worm is fixedly connected to the output end of the second motor, a bearing rod is arranged on the left side of the upper surface of the rotary table, a bearing is embedded into the upper end of the bearing rod, and the left end of the worm is fixedly connected with an inner ring of the bearing;

the output end of the second motor is horizontally arranged leftwards, the right end of the worm is supported by the second motor, and the left end of the worm is supported by the bearing rod, so that the worm is ensured to be kept in a horizontal state;

a support column is fixedly connected to the left side of the upper surface of the turntable, a gear meshed with the worm is rotatably connected to the upper end of the support column, a rotating shaft penetrating through the support column is arranged at the upper end of the support column, the right end of the rotating shaft is fixedly connected with the gear, a first adjusting arm is fixedly connected to the front surface of the gear, and a second adjusting arm is hinged to the upper end of the first adjusting arm;

the supporting columns are thickened at the joints of the rotating shafts and the supporting columns, so that the supporting effect on the rotating shafts is better, and the rotating shafts are prevented from being bent;

install the electric jar between first regulating arm and the second regulating arm, second regulating arm left end is equipped with the U-shaped seat, U-shaped seat internally mounted has the third motor, third motor surface mounting has the electric welding head, electric jar cylinder body lower extreme is articulated with first regulating arm, the piston rod upper end of electric jar is articulated with the second regulating arm, the third motor is double-shaft motor, two outputs and the U-shaped seat inner wall fixed connection of third motor.

As the further optimization of the technical scheme, the upper surface edge of the bottom plate is provided with a plurality of groups of round holes, screws are inserted into the round holes, nuts are screwed on the upper ends of the screws, the lower ends of the screws are fixedly connected with the workbench, rollers are installed at the lower ends of four groups of supporting legs of the workbench, square plates are arranged on the side surfaces of the supporting legs, and handle screws are screwed on the surfaces of the square plates.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the gravity borne by the first motor is shared by the supporting cylinders, and meanwhile, the friction resistance between the supporting cylinders and the rotary table is reduced by the steel balls, so that the first motor mainly plays a role in controlling the rotation of the electric welding head in the whole electric welding robot, the first motor is prevented from bearing large gravity, the rotation load is reduced, and the service life of a user is prolonged;

the electric welding robot reduces the loads of the first motor and the second motor in a mode of distributing the gravity excessively, avoids the condition of damage caused by overload, does not need a large-torque motor, saves the cost, and can freely rotate the electric welding head in multiple directions by matching the first motor, the second motor, the third motor and the electric cylinder, thereby improving the flexibility of the electric welding robot.

Drawings

FIG. 1 is a schematic view of the connection of the worm and the gear of the present invention;

FIG. 2 is a schematic view of the connection between the gear and the support post according to the present invention;

FIG. 3 is a schematic view of the connection between the U-shaped base and the third motor according to the present invention;

FIG. 4 is an enlarged schematic view of FIG. 1 at A;

FIG. 5 is an enlarged view of the structure of FIG. 1 at B;

fig. 6 is a cross-sectional view of the present invention.

In the figure: 1. a base plate; 2. a circular hole; 3. a first motor; 4. a turntable; 5. a support cylinder; 6. steel balls; 7. a second motor; 8. a worm; 9. a support pillar; 10. a gear; 11. a first adjustment arm; 12. a second adjustment arm; 13. an electric cylinder; 14. a U-shaped seat; 15. a third motor; 16. an electric welding head; 17. a rotating shaft; 18. a bearing rod; 19. a bearing; 20. a screw; 21. a roller; 22. a square plate; 23. a handle screw; 24. a work bench.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: an electric welding robot with a multi-degree-of-freedom rotating arm comprises a bottom plate 1, wherein a first motor 3 is installed on the upper surface of the bottom plate 1, a plurality of groups of round holes 2 are formed in the edge of the upper surface of the bottom plate 1, screws 20 are inserted into the round holes 2, nuts are screwed on the upper ends of the screws 20, the lower ends of the screws 20 are fixedly connected with a workbench 24, rollers 21 are installed at the lower ends of four groups of supporting legs of the workbench 24, square plates 22 are arranged on the side surfaces of the supporting legs, and handle screws 23 are screwed on the surfaces of the square plates 22;

the bottom plate 1 has a fixing effect on the first motor 3, the bottom plate 1 can be fixed on the workbench 24 through the circular hole 2, when the whole device needs to be moved, the pushing effect can be achieved in a labor-saving manner under the action of the roller 21, the lower end of the handle screw 23 can be abutted to the ground by screwing the handle screw 23, or the workbench 24 is separated from the ground, the workbench 24 is prevented from moving, the nut on the screw 20 is screwed off, and the workbench 24 can be detached;

the output end of the first motor 3 is provided with a turntable 4, the right side of the upper surface of the turntable 4 is provided with a second motor 7, the output end of the second motor 7 is fixedly connected with a worm 8, the left side of the upper surface of the turntable 4 is fixedly connected with a support column 9, the upper end of the support column 9 is rotatably connected with a gear 10 meshed with the worm 8, the front surface of the gear 10 is fixedly connected with a first adjusting arm 11, the upper end of the first adjusting arm 11 is hinged with a second adjusting arm 12, an electric cylinder 13 is arranged between the first adjusting arm 11 and the second adjusting arm 12, the left end of the second adjusting arm 12 is provided with a U-shaped seat 14, a third motor 15 is arranged inside the U-shaped seat 14, and the surface of the third motor 15 is provided with an electric welding head 16;

first motor 3 rotates and then control electric welding head 16 through control carousel 4 and rotates, second motor 7 control worm 8 pivoted direction is different, can control first regulating arm 11 and do fan-shaped motion, and then control electric welding head 16, contained angle between first regulating arm 11 and the second regulating arm 12 can be controlled to electric jar 13, also can control electric welding head 16 and remove, third motor 15 rotates, steerable electric welding head 16 minizone rotates, make more accurate alignment of electric welding head 16 need welded place.

Specifically, the lower end of the cylinder body of the electric cylinder 13 is hinged to the first adjusting arm 11, the upper end of the piston rod of the electric cylinder 13 is hinged to the second adjusting arm 12, and when the piston rod of the electric cylinder 13 extends out or retracts, the second adjusting arm 12 can be controlled to smoothly rotate by taking the upper end of the first adjusting arm 11 as a center.

Specifically, the third motor 15 is a dual-shaft motor, two output ends of the third motor 15 are fixedly connected with the inner wall of the U-shaped seat 14, and when the third motor 15 rotates, the housing rotates, so that the electric welding head 16 can be driven to rotate.

Specifically, support column 9 upper end is equipped with the pivot 17 that runs through support column 9, pivot 17 right-hand member and gear 10 fixed connection, pivot 17 are favorable to gear 10 to rotate to play the fixed effect of support to gear 10.

Specifically, the upper surface of the bottom plate 1 is provided with a supporting cylinder 5, a plurality of groups of steel balls 6 are mounted on the upper end surface of the supporting cylinder 5, the steel balls 6 are abutted to the lower surface of the turntable 4, the supporting cylinder 5 supports the turntable 4, and the steel balls 6 roll to reduce the friction resistance of the turntable 4 during rotation.

Specifically, the left side of the upper surface of the turntable 4 is provided with a bearing rod 18, a bearing 19 is embedded into the upper end of the bearing rod 18, the left end of the worm 8 is fixedly connected with an inner ring of the bearing 19, the bearing rod 18 supports the worm 8, and the bearing rod 18 does not influence the rotation of the worm 8 through the bearing 19.

Specifically, during the use, start first motor 3, first motor 3 rotates control electric welding head 16 through drive carousel 4 and rotates, steel ball 6 of 5 up end of a support section of thick bamboo this moment is driven by carousel 4, can support carousel 4, second motor 7 drives worm 8 and rotates, worm 8 drives gear 10 and uses pivot 17 as the center rotation, gear 10 drives first regulating arm 11 and does fan-shaped motion, the piston rod extension or the shortening of electric cylinder 13, the contained angle increase or the reduction between adjustable first regulating arm 11 and the second regulating arm 12, third motor 15 rotates and can control electric welding head 16 and rotate, finally through first motor 3, second motor 7, electric cylinder 13, third motor 15 mutually supports, improve electric welding head 16's flexibility, can weld appointed solder joint.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric welding robot of multi freedom rotation arm, includes bottom plate (1), its characterized in that: the automatic feeding mechanism is characterized in that a first motor (3) is mounted on the upper surface of the base plate (1), a rotary table (4) is arranged at the output end of the first motor (3), a second motor (7) is mounted on the right side of the upper surface of the rotary table (4), a worm (8) is fixedly connected with the output end of the second motor (7), a support column (9) is fixedly connected to the left side of the upper surface of the rotary table (4), a gear (10) meshed with the worm (8) is rotatably connected to the upper end of the support column (9), a first adjusting arm (11) is fixedly connected to the front surface of the gear (10), a second adjusting arm (12) is hinged to the upper end of the first adjusting arm (11), an electric cylinder (13) is mounted between the first adjusting arm (11) and the second adjusting arm (12), a U-shaped seat (14) is arranged at the left end of the second adjusting arm (12), and a third motor (15) is mounted inside the U-shaped seat (14), and an electric welding head (16) is arranged on the surface of the third motor (15).

2. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: the lower end of the cylinder body of the electric cylinder (13) is hinged with the first adjusting arm (11), and the upper end of the piston rod of the electric cylinder (13) is hinged with the second adjusting arm (12).

3. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: the third motor (15) is a double-shaft motor, and two output ends of the third motor (15) are fixedly connected with the inner wall of the U-shaped seat (14).

4. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: support column (9) upper end is equipped with pivot (17) that runs through support column (9), pivot (17) right-hand member and gear (10) fixed connection.

5. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: the upper surface of the bottom plate (1) is provided with a supporting cylinder (5), a plurality of groups of steel balls (6) are mounted on the upper end surface of the supporting cylinder (5), and the steel balls (6) are abutted to the lower surface of the turntable (4).

6. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: the left side of the upper surface of the turntable (4) is provided with a bearing rod (18), a bearing (19) is embedded into the upper end of the bearing rod (18), and the left end of the worm (8) is fixedly connected with an inner ring of the bearing (19).

7. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 1, wherein: the bottom plate (1) upper surface edge is equipped with a plurality of groups round hole (2), screw (20) have been inserted in round hole (2), the spiro union has the nut on screw (20), screw (20) lower extreme and workstation (24) fixed connection.

8. An electric welding robot with multiple degrees of freedom rotating arms as claimed in claim 7, wherein: the roller wheels (21) are installed at the lower ends of four groups of supporting legs of the workbench (24), square plates (22) are arranged on the side faces of the supporting legs, and handle screws (23) are connected to the surfaces of the square plates (22) in a threaded mode.