Intelligent welding robot

Abstract

The invention relates to the field of welding, in particular to an intelligent welding robot which comprises a body, a wire reel, a spindle and a wire feeding mechanism are arranged on the body, the wire feeding mechanism comprises a plurality of wire feeding wheels and a motor, rotating shafts are fixedly connected to the wire feeding wheels, a shell is fixedly connected to the body, a plurality of rotating seats are arranged on the inner wall of the shell, and an output shaft is arranged on the motor. The device further comprises an abutting mechanism and an unlocking mechanism, the abutting mechanism comprises a barrel and a synchronous rod, sliding holes are formed in the two ends of the barrel, a connecting base is arranged on the side wall of the barrel, an arc-shaped abutting block is arranged at the head end of the synchronous rod, a sliding handle is arranged in the middle of the synchronous rod, and a first spring is arranged in the middle of the synchronous rod in a sleeving mode. And one rotating shaft is a main driving shaft. Locking of the main shaft can be automatically relieved, and after the motor stops working, the arc-shaped abutting block can abut against the main shaft for emergency braking, so that the risk that a welding wire is bent is avoided.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to an intelligent welding robot. Background Art

[0002] Welding robots are widely used in manufacturing and other fields because of their advantages such as high welding efficiency, good welding quality and the ability to continue operating in harmful environments. With the development of science and technology, welding robots are also developing towards high intelligence and high quality.

[0003] The Chinese invention patent with the announcement number CN117226217B discloses an intelligent welding robot, including a body, a welding wire reel and a wire feeding mechanism are arranged on the body, and the welding wire reel is rotated based on the pulling force of the wire feeding mechanism on the welding wire, and also includes a braking mechanism; when the wire feeding mechanism enters the stop state from the running state, the welding wire reel is synchronously stopped by the braking mechanism. The invention provides an intelligent welding robot, in which a braking mechanism is added between the wire feeding mechanism and the welding wire reel. When the wire feeding mechanism stops feeding the wire, the braking mechanism is triggered, so that the welding wire reel stops rotating synchronously, so that the welding wire between the welding wire reel and the wire feeding mechanism is always in a tight state. The advantage brought by this is that when installing the welding wire reel, there is no need to adjust the braking force by screws, and the welding wire reel only needs to be simply fixed. On the one hand, it can avoid the problem of bending and overloading of the welding wire during the transportation process, and on the other hand, it simplifies the installation of the welding wire reel.

[0004] However, the above patent still has the following shortcomings in actual use: the patent adopts a braking mechanism to make the welding wire reel stop rotating synchronously. When the motor stops driving the first rotating shaft to rotate, the trigger rod in the braking mechanism rotates 180 degrees in the avoidance groove, that is, the second transmission wheel rotates 180 degrees due to rotational inertia. The second transmission wheel and the first transmission wheel are driven by a belt. If the second transmission wheel rotates 180 degrees, it means that the first transmission wheel also rotates 180 degrees. The first transmission wheel will drive the welding wire reel to rotate 180 degrees, and the welding wire reel will release part of the welding wire. If the length of the released welding wire is too long, there is still a risk of bending the welding wire. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides an intelligent welding robot to solve the problem of how to avoid bending of the welding wire in the welding wire reel proposed in the above background technology.

[0006] The technical solution of the present invention is:

[0007] An intelligent welding robot comprises a body, the body is provided with a welding wire reel, a main shaft and a wire feeding mechanism for driving the main shaft to rotate, the welding wire reel is arranged on the main shaft, the wire feeding mechanism comprises a plurality of wire feeding wheels and a motor, a plurality of the wire feeding wheels are fixedly connected to a rotating shaft, the body is fixedly connected to a shell, the inner wall of the shell is provided with a plurality of swivel seats which are rotatably matched with the rotating shaft and the welding wire reel, the motor is provided with an output shaft, the output shaft is connected to one of the rotating shafts, and also comprises an abutment mechanism for abutting and braking the main shaft and an unlocking mechanism for releasing the positioning lock of the abutment mechanism, the abutment mechanism comprises a cylinder and a synchronization rod, both ends of the cylinder are provided with sliding holes, the cylinder A connecting seat is provided on the side wall of the body, and the head end of the synchronization rod is provided with an arc-shaped abutting block abutting the main shaft. A sliding handle is provided in the middle of the synchronization rod, and a first spring is sleeved on the middle of the synchronization rod. The connecting seat is arranged on the inner wall of the outer shell, and the synchronization rod is slidably arranged on two sliding holes, and the sliding handle is slidably arranged in the cylinder, and the two ends of the first spring are respectively fixedly connected to the inner wall of the head end of the cylinder and the sliding handle. The unlocking mechanism includes an unlocking assembly and a transmission assembly, one of the rotating shafts is the main driving shaft, and the unlocking assembly is arranged on the corresponding rotating seat, and the unlocking assembly is transmission-connected to the tail end of the synchronization rod, and the transmission assembly is arranged on the main driving shaft, and the transmission assembly is transmission-connected to the unlocking assembly.

[0008] Preferably, the unlocking assembly comprises an inner disk, an outer connecting ring, an outer disk and a linkage member, the inner disk is provided with a plurality of sliding grooves arranged at equal angles around its circumference, a guide block is provided for sliding in the sliding groove, a guide rod is provided on the outer wall of the guide block, and a round block is provided on the guide rod, a first through hole for the main drive shaft to pass through is opened at the center of the inner disk, the tail end of the outer connecting ring is provided with a plurality of connecting legs, a convex ring is provided on the outer wall of the head end of the outer connecting ring, the tail end of the outer disk is provided with a tail rotating shell that rotates with the convex ring, the outer disk is provided with a plurality of arc grooves that slidably cooperate with the guide rod, and the center of the outer disk is provided with a second through hole for the main drive shaft to pass through, the inner disk is fixedly connected to the head end of the swivel seat, the connecting leg is fixedly connected to the outer wall of the swivel seat, the linkage member is arranged at the tail end of the synchronization rod, the linkage member is transmission connected with the round block, and the transmission assembly is transmission connected with the inner wall of the second through hole.

[0009] Preferably, the linkage member comprises an L-shaped rod and an arcuate synchronization plate, the tail end of the L-shaped rod is fixedly connected to the head end of the synchronization rod, the arcuate synchronization plate is fixedly connected to the head end of the L-shaped rod, and the arcuate synchronization plate abuts against the round block.

[0010] Preferably, the transmission assembly includes a telescopic block, a buffer component for reducing the telescopic speed of the telescopic block, and a plurality of obstruction blocks, the telescopic block is provided with a first wedge surface, the obstruction block is provided with a second wedge surface matching the first wedge surface, the buffer component is arranged in the main drive shaft, the telescopic block is telescopically arranged on the outer wall of the main drive shaft, and the telescopic block is transmission-connected to the buffer component, and the plurality of obstruction blocks are evenly distributed on the inner wall of the second perforation.

[0011] Preferably, the main drive shaft includes a connecting part and a sleeve part, the tail end of the connecting part is provided with a connecting column, the tail end of the sleeve part is provided with a detachable cover, the outer wall of the sleeve part is provided with a telescopic groove that slides with the telescopic block, the connecting part is rotatably connected to the swivel seat, the head end of the sleeve part is fixedly connected to the connecting column, and the buffer component is arranged in the sleeve part.

[0012] Preferably, the buffer component includes a water tank and a front resistance plate, a partition block is provided in the water tank, the partition block divides the interior of the water tank into a water storage area and a transfer area, the water storage area is provided with water and a piston for driving the water to flow, one end of the piston is provided with a pull-out rod, one end of the pull-out rod passes through the water tank, the other end of the piston is provided with a second spring, one end of the second spring abuts against the partition block, a water hole is provided on the partition block, a protrusion is provided at the head end of the front resistance plate, a third wedge surface is provided on the protrusion, a built-in block is provided at the bottom of the telescopic block, a fourth wedge surface matching the third wedge surface is provided at the bottom of the built-in block, the water tank is arranged in the sleeve portion, and the front resistance plate is fixedly connected to one end of the pull-out rod.

[0013] Preferably, the water through hole is in a frustum shape.

[0014] Preferably, the cross-sectional area of ​​the built-in block is larger than the cross-sectional area of ​​the telescopic block.

[0015] Preferably, the head end of the output shaft is provided with a docking groove for inserting the connecting part, the inner wall of the docking groove is provided with a plurality of driving blocks arranged at equal angles around its circumference, and the outer wall of the head end of the connecting part is provided with a plurality of inner grooves arranged at equal angles around its circumference, and the cross-sectional area of ​​the inner grooves is slightly larger than the cross-sectional area of ​​the driving blocks.

[0016] Preferably, a plurality of convex strips are provided on the outer wall of the main shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Firstly, the present invention drives the output shaft to rotate by a motor, and the output shaft transmits the driving force to the main driving shaft, and the main driving shaft then transmits the driving force to the transmission assembly, and the transmission assembly transmits the driving force to the unlocking assembly, so that the unlocking assembly can drive the synchronization rod to move, and then the arc-shaped abutment block can move away from the main shaft, thereby releasing the lock on the main shaft. Once the motor stops working, the transmission assembly and the unlocking assembly both lose the driving force, and the elastic force of the first spring can drive the synchronization rod to move in the opposite direction, and the arc-shaped abutment block can abut against the main shaft for emergency braking, thereby avoiding the risk of bending of the welding wire.

[0019] Secondly, the present invention allows the outer disk to rotate after the telescopic block abuts against the obstruction block, and utilizes the outer disk to drive the arc-shaped synchronization plate to move toward the axis of the main drive shaft. The arc-shaped synchronization plate can drive the synchronization rod and the arc-shaped abutment block to move, and the arc-shaped abutment block can be separated from the main shaft, thereby unlocking the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the overall external structure of the intelligent welding robot of the present invention;

[0021] Figure 2 The internal structure of the housing of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 3 The internal structure of the housing of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 4 A partial cross-sectional view of the abutment mechanism of the present invention;

[0024] Figure 5 for Figure 4 A in the enlarged view;

[0025] Figure 6 It is a schematic diagram of the partial disassembled structure of the unlocking mechanism of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the unlocking mechanism of the present invention;

[0027] Figure 8 A partial cross-sectional view of the main drive shaft of the present invention;

[0028] Fig. 9 It is a partial cross-sectional view of the transmission assembly of the present invention.

[0029] In the figure:

[0030] 1. Body; 2. Wire reel; 21. Spindle; 3. Wire feed wheel; 4. Shell; 41. Rotating seat; 5. Output shaft; 51. Docking groove; 52. Driving block; 6. Abutment mechanism; 61. Cylinder; 62. Synchronous rod; 63. Connecting seat; 64. Arc-shaped abutment block; 65. Sliding handle; 66. First spring; 7. Unlocking assembly; 71. Inner plate; 711. Sliding groove; 712. Guide block; 713. Guide rod; 714. Round block; 72. Outer connecting ring; 721. Connecting foot; 722. Convex ring; 73. Outer plate; 731. Tail rotating shell; 732. Arc-shaped groove; 733. Second perforation; 74. Linkage; 741. L-shaped Rod; 742, arc-shaped synchronous plate; 8, transmission assembly; 81, telescopic block; 811, first wedge surface; 812, built-in block; 813, fourth wedge surface; 82, buffer component; 821, water storage tank; 822, front plate; 8221, protrusion; 8222, third wedge surface; 823, partition block; 8231, water hole; 824, water storage area; 825, transfer area; 826, piston; 8261, pull rod; 8262, second spring; 827, obstruction block; 8271, second wedge surface; 9, main drive shaft; 91, connecting part; 911, connecting column; 912, inner groove; 92, sleeve part; 921, cover. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-9 The present invention describes the above technical solution in detail through the following embodiments:

[0033] An intelligent welding robot comprises a main body 1, on which a welding wire reel 2, a main shaft 21 and a wire feeding mechanism for driving the main shaft 21 to rotate are arranged, the welding wire reel 2 is arranged on the main shaft 21, the wire feeding mechanism comprises a plurality of wire feeding wheels 3 and a motor, the plurality of wire feeding wheels 3 are all fixedly connected with a rotating shaft, a shell 4 is fixedly connected to the main body 1, a plurality of swivel seats 41 for rotating with the rotating shaft and the welding wire reel 2 are arranged on the inner wall of the shell 4, an output shaft 5 is arranged on the motor, the output shaft 5 is connected to one of the rotating shafts, and also comprises an abutment mechanism 6 for abutting and braking the main shaft 21 and an unlocking mechanism for releasing the positioning lock of the abutment mechanism 6, the abutment mechanism 6 comprises a cylinder 61 and a synchronization rod 62, both ends of the cylinder 61 are provided with sliding holes, and the side wall of the cylinder 61 is provided with a plurality of rotating seats 41 for rotating with the rotating shaft and the welding wire reel 2. A connecting seat 63 is provided, and the head end of the synchronization rod 62 is provided with an arc-shaped abutting block 64 abutting against the main shaft 21. A sliding handle 65 is provided in the middle of the synchronization rod 62. A first spring 66 is sleeved on the middle of the synchronization rod 62. The connecting seat 63 is arranged on the inner wall of the outer shell 4, the synchronization rod 62 is slidably arranged on two sliding holes, and the sliding handle 65 is slidably arranged in the cylinder 61. The two ends of the first spring 66 are respectively fixedly connected to the inner wall of the head end of the cylinder 61 and the sliding handle 65. The unlocking mechanism includes an unlocking component 7 and a transmission component 8, one of which is a main driving shaft 9. The unlocking component 7 is arranged on the corresponding rotating seat 41. The unlocking component 7 is transmission-connected to the tail end of the synchronization rod 62, and the transmission component 8 is arranged on the main driving shaft 9, and the transmission component 8 is transmission-connected to the unlocking component 7.

[0034] The present invention drives the output shaft 5 to rotate by a motor, and the output shaft 5 transmits the driving force to the main driving shaft 9, and the main driving shaft 9 transmits the driving force to the transmission assembly 8, and the transmission assembly 8 transmits the driving force to the unlocking assembly 7, so that the unlocking assembly 7 can drive the synchronization rod 62 to move, and then the arc-shaped abutment block 64 can move away from the main shaft 21, thereby releasing the lock on the main shaft 21. Once the motor stops working, the transmission assembly 8 and the unlocking assembly 7 both lose the driving force, and the elastic force of the first spring 66 can drive the synchronization rod 62 to move in the opposite direction, and the arc-shaped abutment block 64 can abut against the main shaft 21 for emergency braking, thereby avoiding the risk of bending of the welding wire.

[0035] Of course, the arc-shaped abutment block 64 is a consumable part, and regular replacement of the arc-shaped abutment block 64 can ensure the braking effect on the main shaft 21 .

[0036] In order to further improve the braking effect on the main shaft 21, a plurality of convex strips are provided on the outer wall of the main shaft 21, and the convex strips are used to increase the friction force.

[0037] When the welding robot is working, the motor drives the output shaft 5 to rotate, and the output shaft 5 drives the main drive shaft 9 to rotate. The main drive shaft 9 cooperates with the unlocking component 7 and the transmission component 8 to drive the synchronization rod 62 to move.

[0038] The unlocking assembly 7 includes an inner disk 71, an outer connecting ring 72, an outer disk 73 and a linkage member 74. The inner disk 71 is provided with a plurality of slide grooves 711 arranged at equal angles around its circumference. A guide block 712 is slidably arranged in the slide groove 711. A guide rod 713 is arranged on the outer wall of the guide block 712. A round block 714 is arranged on the guide rod 713. A first through hole for the main drive shaft 9 to pass through is opened at the center of the inner disk 71. A plurality of connecting legs 721 are arranged at the tail end of the outer connecting ring 72. A convex ring 722 is arranged on the outer wall of the head end of the outer connecting ring 72. The tail end of the outer disk 73 is provided with a tail rotating shell 731 that rotatably cooperates with the convex ring 722. The outer disk 73 is provided with a plurality of arc grooves 732 that slide with the guide rod 713. The center of the outer disk 73 is provided with a second through hole 733 for the main drive shaft 9 to pass through. The inner disk 71 is fixedly connected to the head end of the swivel seat 41, and the connecting leg 721 is fixedly connected to the outer wall of the swivel seat 41. The linkage member 74 is arranged at the tail end of the synchronization rod 62. The linkage member 74 is transmission connected to the round block 714, and the transmission assembly 8 is transmission connected to the inner wall of the second through hole 733.

[0039] The linkage member 74 includes an L-shaped rod 741 and an arcuate synchronizing plate 742 . The tail end of the L-shaped rod 741 is fixedly connected to the head end of the synchronizing rod 62 . The arcuate synchronizing plate 742 is fixedly connected to the head end of the L-shaped rod 741 . The arcuate synchronizing plate 742 abuts against the round block 714 .

[0040] The transmission assembly 8 includes a telescopic block 81, a buffer component 82 for reducing the telescopic speed of the telescopic block 81, and a plurality of obstruction blocks 827. The telescopic block 81 is provided with a first wedge surface 811, and the obstruction block 827 is provided with a second wedge surface 8271 that cooperates with the first wedge surface 811. The buffer component 82 is arranged in the main drive shaft 9, and the telescopic block 81 is telescopically arranged on the outer wall of the main drive shaft 9. The telescopic block 81 is transmission-connected to the buffer component 82, and the plurality of obstruction blocks 827 are evenly distributed on the inner wall of the second through hole 733.

[0041] The main driving shaft 9 includes a connecting portion 91 and a sleeve portion 92. The tail end of the connecting portion 91 is provided with a connecting column 911, and the tail end of the sleeve portion 92 is provided with a detachable cover 921. The outer wall of the sleeve portion 92 is provided with a telescopic groove that slides with the telescopic block 81. The connecting portion 91 is rotatably connected to the swivel seat 41, the head end of the sleeve portion 92 is fixedly connected to the connecting column 911, and the buffer component 82 is arranged in the sleeve portion 92.

[0042] The buffer component 82 includes a water storage tank 821 and a front abutment plate 822. A partition block 823 is provided in the water storage tank 821. The partition block 823 divides the interior of the water storage tank 821 into a water storage area 824 and a transfer area 825. The water storage area 824 is provided with water and a piston 826 for driving the water flow. A pull rod 8261 is provided at one end of the piston 826. One end of the pull rod 8261 passes through the water storage tank 821. A second spring 8262 is provided at the other end of the piston 826. The second spring 8262 is provided at the other end of the piston 826. One end of 8262 abuts against the dividing block 823, and the dividing block 823 is provided with a water hole 8231. The head end of the front resistance plate 822 is provided with a protrusion 8221, and the protrusion 8221 is provided with a third wedge surface 8222. The bottom of the telescopic block 81 is provided with a built-in block 812, and the bottom of the built-in block 812 is provided with a fourth wedge surface 813 that cooperates with the third wedge surface 8222. The water storage tank 821 is arranged in the sleeve part 92, and the front resistance plate 822 is fixedly connected to one end of the pull rod 8261.

[0043] The main driving shaft 9 drives the telescopic block 81 to rotate synchronously, and the telescopic block 81 gradually approaches an obstruction block 827. The first wedge surface 811 on the telescopic block 81 abuts against the second wedge surface 8271. Then, the telescopic block 81 has a downward moving force, and the telescopic block 81 transmits the force to the built-in block 812. The built-in block 812 transmits the force to the front plate 822 through the cooperation of the third wedge surface 8222 and the fourth wedge surface 813. The front plate 822 transmits the force to the pull rod 8261, and the pull rod 8261 transmits the force to the piston 826. This force needs to overcome the second spring 8262 and the squeezing force when the water moves to drive the piston 826 to move. At this time, the elastic force of the first spring 66 is small. Due to the sum of the elastic force of the second spring 8262 and the squeezing force of the water movement, the telescopic block 81 cannot be retracted into the telescopic groove. The telescopic block 81 can abut against the corresponding blocking block 827 to drive the entire outer disk 73 to rotate. After the outer disk 73 rotates, the arc groove 732 is used to drive the guide rod 713 to translate in the slide groove 711. All the round blocks 714 are close to each other, and the arc-shaped synchronization plate 742 is also driven by the round blocks 714 to move in the circumferential direction of the main drive shaft 9. The arc-shaped synchronization plate 742 drives the L-shaped rod 741 and the synchronization rod 62 to move synchronously. The synchronization rod 62 drives the sliding handle 65 and the arc-shaped abutment block 64 to move synchronously. The arc-shaped abutment block 64 moves away from the main shaft 21, and the welding wire reel 2 is unlocked.

[0044] After the guide rod 713 moves to the inner end along the arc groove 732, the guide rod 713 cannot move, that is, the outer disk 73 cannot rotate, and all the obstruction blocks 827 cannot rotate synchronously with the outer disk 73. The obstruction blocks 827 form a blocking force on the telescopic block 81, and this blocking force can overcome the obstruction force exerted on the piston 826 by the second spring 8262 and the movement of water, so that the telescopic block 81 can be retracted into the telescopic groove, and the telescopic block 81 drives the built-in block 812 to move synchronously. The built-in block 812 drives the front resistance plate 822 to move toward the water storage tank 821 through the cooperation of the third wedge surface 8222 and the fourth wedge surface 813. The front resistance plate 822 drives the pulling rod 8261 and the piston 826 to move synchronously, the second spring 8262 is squeezed, and the piston 826 can squeeze the water in the water storage area 824, and the water can flow into the transfer area 825 through the water hole 8231.

[0045] When the telescopic block 81 is separated from the first obstruction block 827, the telescopic block 81 loses the blocking force brought by the outer disk 73, and the elastic force of the second spring 8262 will pull the piston 826 to move in the opposite direction. The elastic force of the first spring 66 will also pull the guide rod 713 to move in the opposite direction in the slide groove 711, and the guide rod 713 will use the arc groove 732 to drive the outer disk 73 to rotate in the opposite direction. At this time, the telescopic block 81 will extend a part from the telescopic groove, and the extended part of the telescopic block 81 can abut against the next obstruction block 827, so that the outer disk 73 rotates forward again, and then the telescopic block 81 retracts into the telescopic groove again. In this cycle, the arc abutment block 64 will deviate left and right and shake, but when feeding wire, the arc abutment block 64 will not abut against the main shaft 21.

[0046] Furthermore, the water hole 8231 is in a frustum shape, such as Fig. 9 As shown, the pressure to which water is subjected when it is pumped from the transfer area 825 into the water storage area 824 by the piston 826 is greater than the pressure to which water is subjected when it is squeezed from the water storage area 824 to the transfer area 825 by the piston 826. The purpose of increasing the pressure is to reduce the speed at which the telescopic block 81 extends out of the telescopic groove, so that the volume of the extended portion of the telescopic block 81 can be reduced when the main drive shaft 9 rotates. When the main drive shaft 9 stops, the extension speed of the telescopic block 81 is reduced, so that the outer disk 73 can rotate in the opposite direction more smoothly.

[0047] Furthermore, the cross-sectional area of ​​the built-in block 812 is greater than the cross-sectional area of ​​the telescopic block 81 , and the built-in block 812 is used to limit the extended length of the telescopic block 81 .

[0048] Furthermore, the main drive shaft 9 adopts a split structure, which makes it easy to maintain the parts inside the sleeve part 92.

[0049] After the motor stops driving the output shaft 5 to rotate, the main drive shaft 9 also stops rotating, and the elastic force of the first spring 66 drives the L-shaped rod 741 and the arc-shaped synchronous plate 742 to move in the opposite direction synchronously, and then the arc-shaped abutment block 64 immediately abuts against the main shaft 21 to perform emergency braking on the main shaft 21. At the same time, the guide rod 713 is also driven by the elastic force of the first spring 66 to move in the opposite direction in the slide groove 711, and the outer disk 73 rotates in the opposite direction, and all the guide rods 713 are reset. At this time, the elastic force of the second spring 8262 drives the piston 826 to move in the opposite direction, and the telescopic block 81 also loses the driving force brought by the motor. The telescopic block 81 extends out of the telescopic groove, and then the telescopic block 81 abuts against the blocking block 827.

[0050] If the outer disk 73 is not completely reset when the telescopic block 81 abuts against the blocking block 827, this will affect the braking effect. Therefore, a docking groove 51 for inserting the connecting part 91 is opened at the head end of the output shaft 5, and a plurality of driving blocks 52 are arranged at equal angles around its circumference on the inner wall of the docking groove 51. A plurality of inner grooves 912 are arranged at equal angles around its circumference on the outer wall of the head end of the connecting part 91, and the cross-sectional area of ​​the inner groove 912 is slightly larger than the cross-sectional area of ​​the driving block 52.

[0051] When the telescopic block 81 abuts against the obstruction block 827 before being fully extended, the telescopic block 81 can be stuck at this position, and the main driving shaft 9 can be deflected to the left and right by a certain angle through the cooperation between the driving block 52 and the inner groove 912, such as Figure 7 As shown, the driving force of the reverse rotation of the outer disk 73 drives the telescopic block 81 and the main drive shaft 9 to rotate in the reverse direction by a certain angle, thereby ensuring that the outer disk 73 can be completely reset. When the motor is working, the output shaft 5 drives all the drive blocks 52 to rotate synchronously. After the drive block 52 abuts against the side groove wall of the inner groove 912, it can drive the main drive shaft 9 to rotate.

Claims

1. An intelligent welding robot, comprising a body (1), the body (1) being provided with a welding wire reel (2), a spindle (21) and a wire feeding mechanism for driving the spindle (21) to rotate, the welding wire reel (2) being arranged on the spindle (21), the wire feeding mechanism comprising a plurality of wire feeding wheels (3) and a motor, the plurality of wire feeding wheels (3) being fixedly connected with a rotating shaft, the body (1) being fixedly connected with a shell (4), the inner wall of the shell (4) being provided with a plurality of rotating seats (41) for rotating with the rotating shaft and the welding wire reel (2), the motor being provided with an output shaft (5), the output shaft (5) being connected with one of the rotating shafts, characterized in that: The invention also comprises an abutment mechanism (6) for abutting and braking the main shaft (21) and an unlocking mechanism for releasing the positioning lock of the abutment mechanism (6), wherein the abutment mechanism (6) comprises a cylinder (61) and a synchronization rod (62), both ends of the cylinder (61) are provided with sliding holes, a connecting seat (63) is provided on the side wall of the cylinder (61), an arc-shaped abutment block (64) abutting against the main shaft (21) is provided at the head end of the synchronization rod (62), a sliding handle (65) is provided in the middle of the synchronization rod (62), a first spring (66) is sleeved on the middle of the synchronization rod (62), and the connecting seat (63) is arranged on the inner wall of the housing (4). The synchronous rod (62) is slidably arranged on the two sliding holes, the sliding handle (65) is slidably arranged in the cylinder (61), the two ends of the first spring (66) are respectively fixedly connected to the inner wall of the head end of the cylinder (61) and the sliding handle (65), the unlocking mechanism comprises an unlocking component (7) and a transmission component (8), one of the rotating shafts is a main driving shaft (9), the unlocking component (7) is arranged on the corresponding rotating seat (41), the unlocking component (7) is transmission-connected to the tail end of the synchronous rod (62), the transmission component (8) is arranged on the main driving shaft (9), and the transmission component (8) is transmission-connected to the unlocking component (7).

2. The intelligent welding robot according to claim 1, characterized in that: The unlocking assembly (7) comprises an inner disk (71), an outer connecting ring (72), an outer disk (73) and a linkage member (74); the inner disk (71) is provided with a plurality of slide grooves (711) arranged at equal angles around the circumference thereof; a guide block (712) is slidably arranged in the slide groove (711); a guide rod (713) is arranged on the outer wall of the guide block (712); a round block (714) is arranged on the guide rod (713); a first through hole for the main drive shaft (9) to pass through is opened at the center of the inner disk (71); a plurality of connecting legs (721) are arranged at the tail end of the outer connecting ring (72); a convex ring (722) is arranged on the outer wall of the head end of the outer connecting ring (72); The tail end of the outer disk (73) is provided with a tail rotating shell (731) that rotates with the convex ring (722), and the outer disk (73) is provided with a plurality of arc grooves (732) that slide with the guide rod (713). The center of the outer disk (73) is provided with a second through hole (733) for the main drive shaft (9) to pass through. The inner disk (71) is fixedly connected to the head end of the rotating seat (41), and the connecting leg (721) is fixedly connected to the outer wall of the rotating seat (41). The linkage member (74) is arranged at the tail end of the synchronization rod (62), and the linkage member (74) is transmission-connected to the round block (714), and the transmission assembly (8) is transmission-connected to the inner wall of the second through hole (733).

3. The intelligent welding robot according to claim 2, characterized in that: The linkage member (74) comprises an L-shaped rod (741) and an arc-shaped synchronization plate (742), the tail end of the L-shaped rod (741) is fixedly connected to the head end of the synchronization rod (62), the arc-shaped synchronization plate (742) is fixedly connected to the head end of the L-shaped rod (741), and the arc-shaped synchronization plate (742) abuts against the round block (714).

4. The intelligent welding robot according to claim 3, characterized in that: The transmission assembly (8) comprises a telescopic block (81), a buffer component (82) for reducing the telescopic speed of the telescopic block (81), and a plurality of obstruction blocks (827); the telescopic block (81) is provided with a first wedge surface (811); the obstruction block (827) is provided with a second wedge surface (8271) matching the first wedge surface (811); the buffer component (82) is arranged in the main drive shaft (9); the telescopic block (81) is telescopically arranged on the outer wall of the main drive shaft (9); the telescopic block (81) is transmission-connected to the buffer component (82); and the plurality of obstruction blocks (827) are evenly distributed on the inner wall of the second through hole (733).

5. The intelligent welding robot according to claim 4, characterized in that: The main drive shaft (9) comprises a connecting portion (91) and a sleeve portion (92); a connecting column (911) is provided at the rear end of the connecting portion (91); a detachable cover (921) is provided at the rear end of the sleeve portion (92); a telescopic groove slidably matched with the telescopic block (81) is provided on the outer wall of the sleeve portion (92); the connecting portion (91) is rotatably connected to the rotating seat (41); the head end of the sleeve portion (92) is fixedly connected to the connecting column (911); and the buffer component (82) is arranged in the sleeve portion (92).

6. The intelligent welding robot according to claim 5, characterized in that: The buffer component (82) includes a water storage tank (821) and a front abutment plate (822). A partition block (823) is provided in the water storage tank (821). The partition block (823) divides the interior of the water storage tank (821) into a water storage area (824) and a transfer area (825). The water storage area (824) contains water and a piston (826) for driving the water to flow. A pull rod (8261) is provided at one end of the piston (826). One end of the pull rod (8261) passes through the water storage tank (821). A second spring (8262) is provided at the other end of the piston (826). The second spring One end of the spring (8262) contacts the partition block (823), and the partition block (823) is provided with a water hole (8231). The head end of the front resistance plate (822) is provided with a protrusion (8221), and the protrusion (8221) is provided with a third wedge surface (8222). The bottom of the telescopic block (81) is provided with a built-in block (812), and the bottom of the built-in block (812) is provided with a fourth wedge surface (813) that cooperates with the third wedge surface (8222). The water storage tank (821) is arranged in the sleeve part (92), and the front resistance plate (822) is fixedly connected to one end of the pull rod (8261).

7. The intelligent welding robot according to claim 6, characterized in that: The water through hole (8231) is in the shape of a frustum.

8. The intelligent welding robot according to claim 6, characterized in that: The cross-sectional area of ​​the built-in block (812) is greater than the cross-sectional area of ​​the telescopic block (81).

9. The intelligent welding robot according to claim 5, characterized in that: The head end of the output shaft (5) is provided with a docking groove (51) for inserting the connecting part (91), and the inner wall of the docking groove (51) is provided with a plurality of driving blocks (52) arranged at equal angles around the circumference thereof; the outer wall of the head end of the connecting part (91) is provided with a plurality of inner grooves (912) arranged at equal angles around the circumference thereof, and the cross-sectional area of ​​the inner grooves (912) is slightly larger than the cross-sectional area of ​​the driving blocks (52).

10. The intelligent welding robot according to claim 1, characterized in that: A plurality of convex strips are provided on the outer wall of the main shaft (21).

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