Welding robot with rotary welding gun

Abstract

The utility model discloses a rotary welding gun welding robot which comprises a base, a robot assembly is arranged on the base, a switching device is arranged at one end of the robot assembly, the switching device comprises a fixing block, a plurality of moving grooves, a welding head, a moving rod, a middle pipe, a connecting pipe, a driving wheel, a driven wheel, a strip-shaped groove, an inclined block and a mounting frame, and the moving grooves are formed in the fixing block. The welding head is mounted at one end of the moving rod, the moving rod penetrates through the moving groove and the middle pipe to be connected with the fixing block and the mounting frame, one end of the connecting pipe penetrates through the moving rod to be connected with the welding head, the other end of the connecting pipe penetrates through the strip-shaped groove to extend into the middle pipe, the strip-shaped groove is formed in the side wall of the middle pipe, and the inclined block is mounted on the inner side of the mounting frame. The adjusting device comprises a connecting frame, an inner gear and an outer gear, the mounting frame is connected with the connecting frame, the inner gear is mounted on one side of the mounting frame, and the problems that a traditional device is insufficient in technological adaptability and low in adjusting efficiency are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rotary welding gun welding robots, more particularly, it relates to a rotary welding gun welding robot. BACKGROUND

[0002] In the field of welding processing, the rotary welding gun welding robot as the key equipment of automatic production, its welding efficiency, process adaptability and positioning precision directly affect the product quality and production efficiency, however, the welding robots on the current market still have many technical defects in practical application, these problems not only affect the processing effect, but also can cause low production efficiency.

[0003] The primary problem is the lack of process adaptability, the welding robots in the prior art have significant defects: first, the welding head configuration is single, which cannot meet the welding needs of different workpieces; second, the welding head specification is fixed, which cannot adapt to different diameter welding processes; third, the replacement process of the welding head is complicated, which increases the process conversion time; in addition, long-term use of a single welding head not only limits the application range of the equipment, but also can cause the welding quality to decline due to mismatched welding parameters, the shortcomings of such design not only affect the production efficiency, but also can cause additional debugging time and material waste, which increases the production cost and process limitations of the enterprise.

[0004] More prominent is the low adjustment efficiency, although the part of the improved equipment realizes the function of quick replacement of the welding head, there are obvious problems, the replacement mechanism is designed simply, lacks effective position adjustment function, and after replacement, the welding head needs to be moved to the original position after complicated adjustment of the robot, which causes the adjustment process to take a long time and affects the production rhythm, the shortcomings of such design not only reduce the automation level of the equipment, but also can cause time waste due to repeated adjustment, which increases the risk of production delay. CONTENT OF THE UTILITY MODEL

[0005] (I) Technical problems solved

[0006] In view of the problems in the prior art, the utility model provides a rotary welding gun welding robot to solve the technical problems mentioned in the background art.

[0007] (II) Technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a rotary welding gun welding robot, including the base, the base is detachable and is equipped with robot assembly, one end of robot assembly is provided with switching device, switching device includes fixed block, moving groove, welding head, moving rod, intermediate pipe, connecting pipe, driving wheel, from driving wheel, strip groove, inclined block and mounting bracket, the fixed block is detachable and is installed in one side of mounting bracket, a plurality of moving grooves are arranged in the fixed block, the welding head is detachable and is installed in one end of moving rod, the moving rod slides through the moving groove, the both ends of intermediate pipe are detachable and are connected with fixed block and mounting bracket respectively, one end of connecting pipe passes through the side wall of moving rod and is detachable and is connected with welding head, the other end of connecting pipe passes through strip groove and extends into intermediate pipe, the driving wheel is engaged with from driving wheel, from driving wheel is detachable and is installed in one side of mounting bracket, the strip groove is arranged in the side wall of intermediate pipe, the inclined block is rotatably installed in the inner side of mounting bracket, one side of robot assembly is installed with adjusting device, adjusting device includes connecting bracket, internal gear and external gear, the connecting bracket is detachable and is installed in one end of robot assembly, the mounting bracket is rotatably connected with connecting bracket, the internal gear is detachable and is installed in one side of mounting bracket, the external gear is in the inner side of internal gear, and the external gear is engaged with internal gear.

[0009] The utility model further sets up, moving rod outside fixedly is equipped with fixed plate, moving rod outside movably is equipped with push spring, and the both ends of push spring are connected with fixed handle and fixed block respectively.

[0010] The utility model further sets up, and one end of moving rod is fixedly equipped with end block, and the end block is of spherical structure design.

[0011] The utility model further sets up, and a plurality of bellows are installed on connecting pipe, and the bellows are metal bellows.

[0012] The utility model further sets up, and the driving wheel and from driving wheel are all conical gear structure design.

[0013] The utility model further sets up, and one side of mounting bracket is detachably equipped with first motor, one side of connecting bracket is detachably equipped with second motor, and first motor and second motor provide stable power support.

[0014] The utility model further sets up, and one side of connecting bracket and mounting bracket is detachably equipped with speed reducer, and the input of speed reducer arranged on connecting bracket is connected with the output of second motor, and the output is connected with external gear, the input of speed reducer installed on mounting bracket is connected with the output of first motor, and the output is connected with driving wheel, and the setting of speed reducer makes the adjustment and switching process more gentle and controllable.

[0015] The utility model further provides for, one side of connecting frame is equipped with the buffer storehouse rotation, buffer storehouse one end is connected with a plurality of connecting pipe, buffer storehouse other side is equipped with the conveying pipe, the conveying pipe is rotationally connected with buffer storehouse, and the rotation connection of buffer storehouse and connecting pipe guarantees that the air passage is unobstructed.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a kind of rotary welding gun welding robot, with following beneficial effects:

[0018] 1, the whole equipment is through the reasonable configuration of base, robot assembly, motor, speed reducer, buffer storehouse and conveying pipe, constructs a complete welding system, and the detachable connection of base and robot assembly provides convenient maintenance mode, and the cooperation of motor and speed reducer realizes accurate control, and the rotation connection of buffer storehouse and conveying pipe ensures gas supply, this design not only realizes the flexible adjustment of welding station by the scientific layout of robot assembly and switching device, but also provides stable gas supply function by the rotation connection of conveying pipe, and ensures the motion precision by the setting of speed reducer, effectively solve the problem of insufficient process adaptability of traditional device, improve welding efficiency, and ensure processing quality.

[0019] 2, switching device forms a flexible switching system by the precise cooperation of fixed block, moving slot, welding head, moving rod, intermediate pipe, connecting pipe, driving wheel, driven wheel, strip slot, inclined block, mounting bracket, fixed plate, push spring, end block and bellows, and the connection of fixed block and mounting bracket provides stable support, and the sliding cooperation of moving rod and moving slot realizes welding head switching, and the flexible structure of bellows and connecting pipe ensures that air passage is unobstructed, this structure not only realizes power conversion by the meshing transmission of driving wheel and driven wheel, but also provides lifting guide by the cooperation of inclined block and end block, and ensures structure reset by push spring mechanism, effectively solve the problem of cumbersome welding head replacement of traditional device, realize the quick switching of welding head, and improve process adaptability.

[0020] 3, adjusting device constructs a reliable position adjustment system by the cooperative work of connecting bracket, internal gear and external gear, and the rotation connection of connecting bracket and mounting bracket provides rotation function, and the meshing design of internal gear and external gear realizes accurate transmission, and the cooperation of second motor and speed reducer ensures control stability, this structure not only realizes angle accurate adjustment by gear transmission, but also provides air passage protection by the rotation connection of buffer storehouse and conveying pipe, and ensures gas source stability by the independent support of conveying pipe, effectively solve the problem of low adjustment efficiency of traditional device, prevent cumbersome adjustment after welding head switching, and ensure the quick adjustment of processing position. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1It is the whole structure schematic view of the rotating welding gun welding robot in the utility model.

[0022] Figure 2 It is the structure schematic view of the switching device and the adjusting device part in the utility model.

[0023] Figure 3 It is the sectional structure schematic view of the switching device and the adjusting device part in the utility model.

[0024] Figure 4 It is the sectional structure schematic view of the second angle of the switching device and the adjusting device part in the utility model.

[0025] Figure 5 It is the structure schematic view of the connecting frame part in the utility model.

[0026] In the figure: 1, base; 2, robot assembly; 3, fixed block; 4, moving groove; 5, welding head; 6, moving rod; 7, intermediate pipe; 8, connecting pipe; 9, driving wheel; 10, driven wheel; 11, strip-shaped groove; 12, inclined block; 13, mounting frame; 14, connecting frame; 15, inner gear; 16, outer gear; 17, fixed plate; 18, push spring; 19, end block; 20, bellows; 21, first motor; 22, second motor; 23, speed reducer; 24, buffer bin; 25, conveying pipe. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the present application, unless otherwise specified, the directions such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally directed to the left and right shown in the drawings; "inner, outer" refer to the inner and outer relative to the contour of each component itself, but the above direction words are not used to limit the present application.

[0030] Please refer to Figures 1-5The utility model provides a kind of rotary welding gun welding robot, including base 1, robot assembly 2 is detachably provided on base 1, robot assembly 2 one end is provided with switching device, switching device includes fixed block 3, moving groove 4, welding head 5, moving rod 6, intermediate tube 7, connecting pipe 8, driving wheel 9, driven wheel 10, strip slot 11, inclined block 12 and mounting frame 13, fixed block 3 is detachably installed in one side of mounting frame 13, multiple moving grooves 4 are opened in fixed block 3, welding head 5 is detachably installed in one end of moving rod 6, moving rod 6 is slid through moving groove 4, intermediate tube 7 both ends are respectively with fixed block 3 and mounting frame 13 detachably connected, connecting pipe 8 one end passes through the side wall of moving rod 6 and is detachably connected with welding head 5, the other end of connecting pipe 8 passes through strip slot 11 and extends into intermediate tube 7, driving wheel 9 is engaged with driven wheel 10, driven wheel 10 is detachably installed in one side of mounting frame 13, strip slot 11 is opened in the side wall of intermediate tube 7, inclined block 12 is rotatably installed in the inner side of mounting frame 13, adjusting device is installed in one side of robot assembly 2, adjusting device includes connecting frame 14, internal gear 15 and external gear 16, connecting frame 14 is detachably installed in one end of robot assembly 2, mounting frame 13 is rotatably connected with connecting frame 14, internal gear 15 is detachably installed in one side of mounting frame 13, external gear 16 is inside internal gear 15, and external gear 16 is engaged with internal gear 15.

[0031] Fixed plate 17 is fixed on the outer side of moving rod 6, push spring 18 is movably sleeved on the outer side of moving rod 6, and the two ends of push spring 18 are connected with fixed handle and fixed block 3 respectively.

[0032] End block 19 is fixed on one end of moving rod 6, and end block 19 is designed in spherical structure.

[0033] A plurality of corrugated pipes 20 are installed on connecting pipe 8, and the corrugated pipe 20 is a metal corrugated pipe 20.

[0034] Driving wheel 9 and driven wheel 10 are designed in conical gear structure.

[0035] When it is necessary to change the different welding head 5 according to the process in the embodiment, the first motor 21 mounted on one side of the mounting frame 13 is turned on, the first motor 21 drives the driving wheel 9 connected with the output end of the speed reducer 23 to rotate after the speed reducer 23 is decelerated, and then the driving wheel 9 drives the driven wheel 10 engaged with it to rotate, and then the driven wheel 10 drives the inclined block 12 to rotate. Due to the special structure design of the inclined block 12, when the inclined block 12 rotates, taking the welding head 5 at the bottom end as an example, the inclined surface of the inclined block 12 pushes the end block 19 arranged at one end of the moving rod 6 to move upwards, so that the end block 19 drives the moving rod 6 at this position to move upwards, and then the moving rod 6 at this position drives the transverse part of the connecting pipe 8 to slide in the strip-shaped groove 11, and then the part of the connecting pipe 8 inside the middle pipe 7 drives the corresponding bellows 20 to stretch, and at the same time the moving rod 6 drives the welding head 5 to slide out along the moving groove 4 opened in the inner side of the fixed block 3, and the moving rod 6 drives the fixed plate 17 outside to extrude the push spring 18 sleeved outside the moving rod 6 in cooperation with the fixed block 3. At this time, when the inclined block 12 moves, the push spring 18 pushes the fixed plate 17 arranged outside the moving rod 6 to slowly move downwards, and then the moving rod 6 drives the welding head 5 at this position to gradually enter the moving groove 4 opened in the inner side of the fixed block 3, and the moving rod 6 drives the circular end block 19 arranged at one end to always contact one side of the inclined block 12, and then the moving rod 6 at this position drives the transverse part of the connecting pipe 8 to slide reversely along the strip-shaped groove 11, and the part of the connecting pipe 8 inside the middle pipe 7 extrudes the bellows 20 in cooperation with the buffer bin 24. After adjustment, the first motor 21 can be turned off.

[0036] Please refer to Figures 1-5 As a further embodiment of the whole device: the first motor 21 is detachably arranged on one side of the mounting frame 13, and the second motor 22 is detachably arranged on one side of the connecting frame 14.

[0037] The speed reducer 23 is detachably arranged on one side of the connecting frame 14 and the mounting frame 13, the input end of the speed reducer 23 arranged on the connecting frame 14 is connected with the output end of the second motor 22, and the output end is connected with the external gear 16; the input end of the speed reducer 23 mounted on the mounting frame 13 is connected with the output end of the first motor 21, and the output end is connected with the driving wheel 9.

[0038] The buffer bin 24 is rotatably arranged on one side of the connecting frame 14, one end of the buffer bin 24 is connected with a plurality of connecting pipes 8, and the other side of the buffer bin 24 is provided with a conveying pipe 25 which is rotatably connected with the buffer bin 24.

[0039] More specifically, after the welding head 5 is switched, the second motor 22 installed on one side of the connecting frame 14 is turned on, so that the output end of the second motor 22 drives the outer gear 16 connected to the output end of the speed reducer 23 to rotate after the speed reduction of the speed reducer 23, so that the outer gear 16 drives the inner gear 15 engaged therewith to rotate, thereby driving the mounting frame 13, the fixed block 3 and all components installed inside the fixed block 3 to rotate. When the adjusted welding head 5 moves to the position of the welding head 5 before adjustment, the second motor 22 is turned off, so that the second motor 22 stops rotating. During the rotation of the mounting frame 13, the intermediate pipe 7, the strip-shaped groove 11, the connecting pipe 8 and the bellows pipe 20 and other components are rotated together. At the same time, the buffer bin 24 is rotated on the other side of the connecting block. Since the conveying pipe 25 is rotationally connected to the buffer bin 24, the conveying pipe 25 will not rotate with the buffer bin 24, and the other end of the conveying pipe 25 is connected to an external air source device.

[0040] In summary, when different welding heads 5 need to be replaced according to the process during use or operation of the overall device, the first motor 21 installed on one side of the mounting frame 13 is turned on. The first motor 21 drives the driving wheel 9 connected to the output end of the speed reducer 23 to rotate after the speed reduction of the speed reducer 23, and then the driving wheel 9 drives the driven wheel 10 engaged therewith to rotate, and then the driven wheel 10 drives the inclined block 12 to rotate. Due to the special structure of the inclined block 12, when the inclined block 12 rotates, taking the welding head 5 at the bottom end as an example, the inclined block 12 rotates, so that the inclined surface of the inclined block 12 pushes the end block 19 provided at one end of the moving rod 6 to move upwards, so that the end block 19 drives the moving rod 6 at this position to move upwards, and then the moving rod 6 at this position drives the horizontal part of the connecting pipe 8 to slide in the strip-shaped groove 11, and then the part of the connecting pipe 8 inside the intermediate pipe 7 drives the corresponding bellows pipe 20 to stretch. At the same time, the moving rod 6 drives the welding head 5 to slide out along the moving groove 4 formed inside the fixed block 3, and the moving rod 6 drives the fixed plate 17 outside the fixed block 3 to extrude the push spring 18 sleeved outside the moving rod 6. At this time, the welding head 5 at the highest position before adjustment is moved by the inclined block 12, the push spring 18 pushes the fixed plate 17 installed outside the moving rod 6 to slowly move downwards, and then the moving rod 6 drives the welding head 5 at this position to gradually enter the moving groove 4 formed inside the fixed block 3. The moving rod 6 drives the circular end block 19 provided at one end to always contact one side of the inclined block 12, and then the moving rod 6 drives the horizontal part of the connecting pipe 8 at this position to slide reversely along the strip-shaped groove 11, and the part of the connecting pipe 8 inside the intermediate pipe 7 extrudes the bellows pipe 20 in cooperation with the buffer bin 24. After adjustment, the first motor 21 is turned off.

[0041] When the welding head 5 is switched, the second motor 22 installed on one side of the connecting frame 14 is turned on, so that the output end of the second motor 22 drives the outer gear 16 connected to the output end of the speed reducer 23 to rotate after the speed reduction of the speed reducer 23, so that the outer gear 16 drives the inner gear 15 engaged with it to rotate, thereby driving the mounting frame 13, the fixed block 3 and all the components installed inside to rotate. When the adjusted welding head 5 moves to the position of the welding head 5 before adjustment, the second motor 22 is turned off, so that the second motor 22 stops rotating. During the rotation of the mounting frame 13, the intermediate pipe 7, the strip-shaped groove 11, the connecting pipe 8 and the corrugated pipe 20 and other components will rotate together. At the same time, the buffer bin 24 will rotate on the other side of the connecting block. Since the conveying pipe 25 is connected with the buffer bin 24 for rotation, the conveying pipe 25 will not rotate with the buffer bin 24, and the other end of the conveying pipe 25 is connected with an external air source device.

[0042] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection methods. Here, it is not necessary to repeat the details. In the above, whenever there is a fixed connection, it is preferred to consider welding. Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A robot for welding with a rotating welding gun, comprising a base (1) on which a robot assembly (2) is arranged, characterised in that: The robot assembly (2) is provided with a switching device at one end, the switching device comprises a fixed block (3), a moving groove (4), a welding head (5), a moving rod (6), an intermediate pipe (7), a connecting pipe (8), a driving wheel (9), a driven wheel (10), a strip-shaped groove (11), an inclined block (12) and a mounting frame (13), a plurality of moving grooves (4) are formed in the fixed block (3), the welding head (5) is installed at one end of the moving rod (6), the moving rod (6) passes through the moving groove (4), the intermediate pipe (7) is connected with the fixed block (3) and the mounting frame (13), one end of the connecting pipe (8) passes through the moving rod (6) and is connected with the welding head (5), the other end of the connecting pipe (8) passes through the strip-shaped groove (11) and extends into the intermediate pipe (7), the driving wheel (9) is engaged with the driven wheel (10), the strip-shaped groove (11) is formed in the side wall of the intermediate pipe (7), the inclined block (12) is installed on the inner side of the mounting frame (13), and the robot assembly (2) is provided with an adjusting device on one side, the adjusting device comprises a connecting frame (14), an internal gear (15) and an external gear (16), the mounting frame (13) is rotationally connected with the connecting frame (14), the internal gear (15) is installed on one side of the mounting frame (13), the external gear (16) is located on the inner side of the internal gear (15), and the external gear (16) is engaged with the internal gear (15).

2. A rotational welding gun welding robot according to claim 1, characterized in that: A fixed plate (17) is fixedly arranged on the outer side of the moving rod (6), a push spring (18) is movably arranged on the outer side of the moving rod (6), and the two ends of the push spring (18) are connected with the fixed handle and the fixed block (3) respectively.

3. A rotational welding gun welding robot according to claim 2, characterized in that: An end block (19) is fixedly arranged at one end of the moving rod (6), and the end block (19) is designed in a spherical structure.

4. A rotational welding gun welding robot according to claim 3, characterized in that: A plurality of corrugated pipes (20) are installed on the connecting pipe (8).

5. A rotational welding gun welding robot according to claim 4, characterized in that: The driving wheel (9) and the driven wheel (10) are designed in a conical gear structure.

6. A rotational welding gun welding robot according to any one of claims 1-5, characterized in that: A first motor (21) is detachably arranged on one side of the mounting frame (13), and a second motor (22) is detachably arranged on one side of the connecting frame (14).

7. A rotational welding gun welding robot according to claim 5, characterized in that: A speed reducer (23) is detachably arranged on one side of each of the connecting frame (14) and the mounting frame (13), the input end of the speed reducer (23) arranged on the connecting frame (14) is connected with the output end of the second motor (22), the output end is connected with the external gear (16), the input end of the speed reducer (23) arranged on the mounting frame (13) is connected with the output end of the first motor (21), and the output end is connected with the driving wheel (9).

8. A rotational welding gun welding robot according to claim 1, characterized in that: A buffer bin (24) is rotationally arranged on one side of the connecting frame (14), one end of the buffer bin (24) is connected with a plurality of connecting pipes (8), a conveying pipe (25) is arranged on the other side of the buffer bin (24), and the conveying pipe (25) is rotationally connected with the buffer bin (24).

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