CN117226217B - Intelligent welding robot - Google Patents
Intelligent welding robot Download PDFInfo
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- CN117226217B CN117226217B CN202311493217.6A CN202311493217A CN117226217B CN 117226217 B CN117226217 B CN 117226217B CN 202311493217 A CN202311493217 A CN 202311493217A CN 117226217 B CN117226217 B CN 117226217B
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- 230000000694 effects Effects 0.000 claims description 11
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- 230000008859 change Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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Abstract
The invention discloses an intelligent welding robot, which relates to the field of welding and comprises a body, wherein a wire reel and a wire feeding mechanism are arranged on the body, and the intelligent welding robot pulls the wire reel to rotate based on the tension of the wire feeding mechanism on a welding wire and further comprises a braking mechanism; when the wire feeding mechanism enters a stop state from an operation state, the wire reel is synchronously stopped from rotating by the braking mechanism. According to the intelligent welding robot, the braking mechanism is additionally arranged between the wire feeding mechanism and the wire reel, when the wire feeding mechanism stops feeding wires, the braking mechanism is triggered, so that the wire reel synchronously stops rotating, and the welding wires between the wire reel and the wire feeding mechanism are always in a tight state.
Description
Technical Field
The invention relates to the field of welding, in particular to an intelligent welding robot.
Background
The welding robot has the advantages of high welding efficiency, good welding quality, continuous operation in a harmful environment and the like, is widely applied to a plurality of fields such as manufacturing industry and the like, and along with the development of science and technology, the welding robot is also developed towards high intelligence and high quality.
If the authorized bulletin number is CN 209716725U, the authorized bulletin day is 2019.12.03, the patent application with the name of welding robot installation structure and welding system comprises a robot body, a welding wire storage, a1 st wire feeder, a wire feeding guide pipe, a welding wire buffer device, a2 nd wire feeder, a welding gun and a welding wire; the 2 nd wire feeder is connected with a welding gun; the welding wire buffer device is characterized in that one end of the welding wire buffer device is connected with a wire feeding guide pipe end, the other end of the welding wire buffer device is connected with the No. 2 wire feeding machine, the wire feeding guide pipe end can drive welding wires to buffer in the welding wire buffer device, the No. 1 wire feeding machine is arranged on a base shaft, and the welding wires sequentially pass through a welding wire storage, the No. 1 wire feeding machine, the wire feeding guide pipe, the welding wire buffer device, the No. 2 wire feeding machine and a welding gun in sequence. And a welding system including the welding robot mounting structure. In order to achieve the purposes of convenient installation, improvement of welding quality, simple and reasonable circuit layout, potential safety hazard prevention caused by circuit breakage and reduction of failure rate.
The wire feeder is characterized in that the wire reel is arranged on the body through the screw, the braking force of the wire reel is controlled through the tightness degree of the screw, when the screw is tightened, the braking force of the wire reel is larger, the wire feeder is easy to overload, and when the screw is loosened, the wire reel can continuously rotate for a certain angle under the action of inertia when the wire feeder stops feeding wires, and welding wires are easy to bend.
Disclosure of Invention
The invention aims to provide an intelligent welding robot which aims to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
An intelligent welding robot comprises a body, wherein a wire reel and a wire feeding mechanism are arranged on the body, the wire reel is pulled to rotate based on the tension of the wire feeding mechanism to welding wires, and the intelligent welding robot further comprises a braking mechanism; when the wire feeding mechanism enters a stop state from an operation state, the wire reel is synchronously stopped from rotating by the braking mechanism.
The intelligent welding robot comprises a first driving part and a brake block connected with the output end of the first driving part, wherein the first driving part is arranged on the body, the brake block is synchronously driven by the first driving part to brake the wire reel when the wire feeding mechanism stops, and the brake block is synchronously driven by the first driving part to release the brake of the wire reel when the wire feeding mechanism operates.
The above-mentioned intelligent welding robot, wire feeding mechanism includes a plurality of wire feeding wheel and second driving piece, the rigid coupling has the shell on the body, and a plurality of the equal rigid coupling has the rotation axis on the wire feeding wheel, a plurality of the rotation axis all rotate set up in the shell inner wall, the second driving piece with one of them rotation axis is connected.
According to the intelligent welding robot, the two sliding seats capable of adjusting the positions are slidably arranged on the inner wall of the shell.
According to the intelligent welding robot, the door plate is hinged to the opening position of the shell, and the transparent window is arranged on the door plate.
The intelligent welding robot comprises a first driving wheel and a second driving wheel, wherein the first driving wheel is rotatably arranged on the inner wall of the shell, one of the rotating shafts is rotatably provided with a braking wheel, the second driving wheel is rotatably arranged on the inner wall of the shell, the second driving wheel is sleeved outside the braking wheel, the first driving wheel is connected with the second driving wheel through a driving belt, and a passive braking assembly is arranged between the braking wheel and the second driving wheel;
The passive brake assembly comprises a trigger rod and a brake block, the trigger rod is fixedly connected to the rotating shaft, an avoidance groove is formed in the brake wheel, a first trigger block is slidably connected to the inner wall of the avoidance groove, the brake block is fixedly connected to the bottom end of the first trigger block, a friction part matched with the brake block to enable the brake wheel to stop rotating is arranged on the inner wall of the second driving wheel, and the top end of the first trigger block is located on the movement stroke of the trigger rod.
According to the intelligent welding robot, the first driving wheel is fixedly connected with the mounting shaft, and the wire reel is detachably mounted on the mounting shaft.
According to the intelligent welding robot, the limiting block is fixedly connected to the outer surface of the mounting shaft, and the limiting groove matched with the limiting block is formed in the wire reel and the inner wall.
According to the intelligent welding robot, the movable groove is formed in the inner bottom wall of the avoidance groove, and the elastic piece is arranged between the first trigger block and the movable groove.
The intelligent welding robot is characterized in that one rotating shaft is of a split type structure, and a speed change mechanism is arranged between split parts of the rotating shaft.
In the technical scheme, the braking mechanism is additionally arranged between the wire feeding mechanism and the wire reel, and when the wire feeding mechanism stops feeding wires, the braking mechanism is triggered, so that the wire reel synchronously stops rotating, and the welding wires between the wire reel and the wire feeding mechanism are always in a tight state.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of an external overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of a housing according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a second driving wheel and a brake wheel according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of a braking state of a first trigger block according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a second drive wheel and a brake wheel according to another embodiment of the present invention;
FIG. 6 is an exploded view of a second drive wheel and a brake wheel according to another embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the partial structure of FIG. 5A;
fig. 8 is a schematic diagram illustrating connection between a rotating shaft and a speed change mechanism according to another embodiment of the present invention.
Reference numerals illustrate:
1. A body; 2. a wire reel; 3. wire feeding wheel; 4. a housing; 5. a rotation shaft; 501. a first rotation shaft; 6. a door panel; 7. a transparent window; 8. a first driving wheel; 9. a second driving wheel; 10. a brake wheel; 11. a mounting shaft; 12. a limit groove; 13. a trigger lever; 14. a brake pad; 15. an avoidance groove; 16. a first trigger block; 17. a friction part; 18. a movable groove; 19. a first spring; 20. a sleeve; 21. a slide bar; 22. a second trigger block; 23. an annular clamping plate; 24. a clamping block; 25. a second spring; 26. a transverse slot; 27. a transmission rod; 2701. a first horizontal segment; 2702. a second horizontal segment; 2703. a vertical section; 28. a first abutting portion; 29. a second abutting portion; 30. a clamping groove; 31. a fourth spring; 32. an infrared sensor; 33. a sliding seat; 34. a speed change mechanism; 35. a first shaft body; 36. a second shaft body.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
In the embodiment of the present invention, for convenience of description, the length direction of the trigger lever 13 in fig. 3 is taken as a vertical direction, and the corresponding width direction thereof is taken as a horizontal direction, and the following description of "left" and "right" are also based on this direction.
Referring to fig. 1-8, an intelligent welding robot according to an embodiment of the invention includes a body 1, a wire reel 2 and a wire feeding mechanism are arranged on the body 1, and the intelligent welding robot pulls the wire reel 2 to rotate based on the tension of the wire feeding mechanism to welding wires and also includes a braking mechanism; when the wire feeding mechanism enters a stop state from an operation state, the wire reel 2 is synchronously stopped from rotating by the braking mechanism.
Specifically, the body 1 includes the base and installs the actuating arm on the base, wire reel 2 rotates and connects on body 1, wire feeding mechanism can be with wire reel 2 go up the one end interference setting of welding wire on the part of welding wire such as send the silk wheel, drive the rotation of silk wheel through the drive source and drive the welding wire motion, thereby drive wire reel 2 pivoted mechanism, this is the prior art, the one of the core innovation point of this invention lies in, for wire reel 2 add brake mechanism, brake mechanism can include the motor of installing on wire reel 2, so that wire feeding mechanism is by running state entering stop state, make wire reel 2 stop rotating in step through brake mechanism, the effect of setting up like this is in, when wire feeding mechanism normally send the silk, drive wire reel synchronous rotation through the pulling force of welding wire, thereby realize the normal material loading of welding wire, when wire feeding mechanism stops sending the silk, brake mechanism triggers, make wire reel 2 stop rotating in step, thereby make between wire reel 2 and the wire feeding mechanism be in the state of tightening all the time, the benefit that is in the wire reel 2, in the time, in the wire reel 2 installation need not be adjusted when carrying out, can be in the wire reel 2 through the simple condition that can be just can be realized in the wire reel 2, the problem of just can be simply being installed to the wire reel, the wire can be avoided in the wire reel is just to the problem of wire reel is easy to be installed, on the wire feeding screw on the other side. Preferably, the braking mechanism includes a first driving member (not shown in the figure) and a braking plate (not shown in the figure) connected to an output end of the first driving member, where the first driving member is disposed on the body 1, and based on the fact that the first driving member synchronously drives the braking plate to brake the wire reel 2 when the wire feeding mechanism stops, and based on the fact that the first driving member synchronously drives the braking plate to release the braking of the wire reel 2 when the wire feeding mechanism operates, specifically, the braking plate may be a plate structure with a larger dynamic friction factor, or may be a plug pin, and is disposed corresponding to a position of the wire reel 2, and accordingly, the wire reel 2 may have a friction area or a jack adapted to the braking plate, and the braking plate has a first position for controlling the linear motion of the braking plate and a second position far away from the wire reel 2, where the first driving member may be a cylinder or the like, and the first driving member is switched between the first position and the second position, and the wire feeding mechanism is continuously controlled by the first driving member, and the wire reel 2 is continuously stopped when the first driving member is switched between the first position and the second position, and the wire feeding mechanism is continuously controlled by the wire reel.
Preferably, the wire feeding mechanism includes a plurality of wire feeding wheels 3 and second driving parts (not shown in the figure), the body 1 is fixedly connected with a casing 4, a plurality of wire feeding wheels 3 are fixedly connected with rotating shafts 5, a plurality of rotating shafts 5 are all rotationally arranged on the inner wall of the casing 4, the second driving parts are in transmission connection with one of the rotating shafts 5, in particular, an annular groove matched with welding wires is formed on the surface of the wire feeding wheels 3 (welding wires are placed in the annular groove and rotate through the wire feeding wheels 3, so that the welding wires are driven to move, in the prior art, the number of the wire feeding wheels 3 is not less than four, the wire feeding wheels are symmetrically arranged, the second driving parts are preferably driving motors, the casing 4 is of a rectangular structure with hollow inside, the driving motors are fixedly connected on the outer wall of the casing 4, and the output shafts of the driving motors penetrate through the inner part of the casing 4 and are fixedly connected with one of the rotating shafts 5, and the effect of the effect that the driving motors drive one of the rotating shafts 5 and the wire feeding wheels 3 to rotate, and the rest wire feeding wheels 3 are synchronously driven to rotate under the effect of welding wires, so that the welding wires are synchronously driven to rotate, so that the welding wires are conveyed.
As another preferred embodiment, the inner wall of the casing 4 is slidably provided with two sliding seats 33 with adjustable positions, the rotating shafts 5 of the two wire feeding wheels 3 located above are fixedly connected to the sliding seats 33, the penetration of welding wires can be facilitated on one hand, and the distance between the wire feeding wheels 3 located above and the wire feeding wheels 3 located below can be adjusted on the other hand by adjusting the positions of the sliding seats 33 (for example, threaded holes are formed in the tops of the sliding seats, threaded rods are connected to the inner threads of the threaded holes, and the vertical height of the sliding seats 33 can be adjusted under the action of the threaded rods and the threaded holes by rotating the threaded rods, so that the vertical heights of the two wire feeding wheels 3 located above, that is, the relative distance between the wire feeding wheels 3 located above and the wire feeding wheels 3 located below can be adjusted.
Preferably, the door plate 6 is hinged at the opening position of the shell 4, the transparent window 7 is arranged on the door plate 6, the internal condition of the shell 4 can be observed through the transparent window 7, and when the welding wire on the wire reel 2 is insufficient, the welding wire can be replaced in time conveniently.
As another preferred embodiment of the present invention, the braking mechanism includes a first driving wheel 8 and a second driving wheel 9, where the first driving wheel 8 is rotatably disposed on an inner wall of the housing 4, one of the rotating shafts 5 is a first rotating shaft 501, the first rotating shaft 501 is a rotating shaft 5 connected to an output end of the second driving member, a braking wheel 10 is rotatably disposed on the first rotating shaft 501, the second driving wheel 9 is rotatably disposed on an inner wall of the housing 4, the second driving wheel 9 is sleeved outside the braking wheel 10, the first driving wheel 8 is connected with the second driving wheel 9 through a driving belt, and a passive braking assembly is disposed between the braking wheel 10 and the second driving wheel 9; preferably, the passive brake assembly includes a trigger rod 13 and a brake block 14, the trigger rod 13 is fixedly connected to the first rotating shaft 501, a dodging groove 15 is formed in the brake wheel 10, a first trigger block 16 is slidably connected to an inner wall of the dodging groove 15, the brake block 14 is fixedly connected to a bottom end of the first trigger block 16, a friction part 17 matched with the brake block 14 to stop rotation of the brake wheel 10 is arranged on an inner wall of the second driving wheel 9, a top end of the first trigger block 16 is located on a movement stroke of the trigger rod 13, a movable groove 18 is formed in an inner bottom wall of the dodging groove 15, and an elastic member is arranged between the first trigger block 16 and the movable groove 18; a mounting shaft 11 is fixedly connected to the first driving wheel 8, and the wire reel 2 is detachably mounted on the mounting shaft 11; the outer surface of the installation shaft 11 is fixedly connected with a limiting block, and a limiting groove 12 matched with the limiting block is formed in the welding wire reel 2 and the inner wall.
Specifically, the first driving wheel 8 is disc-shaped, the second driving wheel 9 is ring-shaped, the first driving wheel 8 and the second driving wheel 9 can be pulleys or synchronous wheels, correspondingly, the driving belt can be a belt or a synchronous belt, the brake wheel 10 is disc-shaped, is positioned at a hollow position in the second driving wheel 9, an annular gap is arranged between the two driving wheels, the avoidance groove 15 is preferably semicircular, the top wall of the right side of the semicircle is arranged to incline downwards (namely, the hollow area of the right side is smaller than the hollow area of the left side, so that the weight of the right side of the brake wheel 10 is increased, the rotating speed of the right side of the brake wheel 10 is faster when the first rotating shaft 501 stops, the acting force of the bottom wall of the left side of the avoidance groove 15 for impacting the trigger rod 13 is larger, So as to further improve the braking effect), the trigger rod 13 is fixedly connected to the outer side wall of the first rotating shaft 501 and is positioned in the avoidance groove 15, the first trigger block 16 is in a cross shape, the inner bottom wall of the avoidance groove 15 is provided with a sliding groove matched with the first trigger block 16, the first trigger block 16 can vertically slide, the braking principle of the brake block 14 and the friction part 17 is the same as that of a motor vehicle, namely, when the brake block 14 presses the friction part 17, the second driving wheel 9 stops rotating under the action of friction force, the movable grooves 18 are preferably two and are respectively positioned at two sides of the first trigger block 16, the elastic piece is preferably a first spring 19, one end of the first spring 19 is fixedly connected with the inner bottom wall of the movable groove 18, the other end of the first spring is fixedly connected with the first trigger block 16, the limiting block is preferably in a long strip shape, the limiting groove 12 is preferably in a long strip shape matched with the limiting block (under the limiting action of the limiting groove 12 and the limiting block, the installation shaft 11 and the wire reel 2 can synchronously rotate), the arrangement is that when the wire feeding mechanism normally feeds wires, the second driving piece drives the first rotating shaft 501 and the brake wheel 10 to synchronously rotate, and when the wires are fed wires, the tension of the welding wires can drive the wire reel 2, the first driving wheel 8 and the installation shaft 11 to synchronously rotate, the rotation of the first driving wheel 8 can drive the second driving wheel 9 to synchronously rotate under the action of the driving belt, Because a gap is arranged between the brake wheel 10 and the second driving wheel 9, when the brake wheel 10 rotates and the second driving wheel 9 rotate, the brake wheel 10 is not relatively influenced, under a normal wire feeding state, the first spring 19 is in a compressed state, the upper surface of the first trigger block 16 is abutted with the inner top wall of the movable groove 18, so that the top end of the first trigger block 16 is positioned in the avoidance groove 15, when the first rotating shaft 501 rotates clockwise, the trigger rod 13 on the outer side wall of the first trigger block is driven to synchronously rotate, when the trigger rod 13 is abutted with the bottom wall on the right side of the avoidance groove 15, the brake wheel 10 is driven to synchronously rotate under the abutting action, and after the wire feeding mechanism finishes wire feeding, That is, when the second driving member controls the first rotation shaft 501 to stop rotating, the brake wheel 10 continuously rotates under the action of inertia, so that the top of the first trigger block 16 contacts and extrudes the trigger rod 13, the first trigger block 16 moves vertically downward (simultaneously compresses the first spring 19), so that the brake pad 14 at the bottom end of the first trigger block 16 contacts and extrudes the friction part 17 on the inner wall of the second driving wheel 9, the second driving wheel 9 is forced to stop under the action of friction force, and the wire reel 2 stops rotating, thereby preventing welding wire from bending, after extrusion is finished, the brake wheel 10 stops rotating, and therefore the extrusion effect of the trigger rod 13 on the first trigger block 16 disappears, The first trigger block 16 is automatically reset under the elastic force of the first spring 19.
As another preferred embodiment, one of the first rotating shafts 501 is a split structure, a speed change mechanism 34 is disposed between split components of the first rotating shaft 501, specifically, the split structure, that is, the first rotating shaft 501 includes a first shaft body 35 and a second shaft body 36, the first shaft body 35 is fixedly connected with an output end of a second driving member, the second shaft body 36 is fixedly connected with the wire feeding wheel 3, and the trigger rod 13 is fixedly connected to the first shaft body 35, the speed change mechanism 34 is preferably a reduction gearbox, one end of the reduction gearbox is connected with the first shaft body 35, and the other end of the reduction gearbox is connected with the second shaft body 36, the effect is that the first shaft body 35 is reduced through the reduction gearbox and then is transmitted to the second shaft body 36, so that the second shaft body 36 and the wire feeding wheel 3 rotate at a normal speed, and the wire feeding wheel 3 feeds wires at a normal speed.
As another preferred embodiment of the present invention, the trigger lever 13 includes a sleeve 20 and a slide bar 21 slidably disposed in the sleeve 20, the sleeve 20 is fixedly connected to the first rotating shaft 501, a check assembly is disposed between the sleeve 20 and the slide bar 21, a second trigger block 22 is slidably disposed on an inner wall of the avoidance slot 15, when the trigger lever 13 extends, the second trigger block 22 is located on a movement stroke of an end portion of the slide bar 21, an annular clamping plate 23 is disposed in the second driving wheel 9, a clamping block 24 adapted to the annular clamping plate 23 is disposed on the second trigger block 22, Specifically, the sleeve 20 is located on the motion stroke of the first trigger block 16, the sliding rod 21 can slide along the inner wall of the sleeve 20, a second spring 25 is arranged between the sliding rod 21 and the inner wall of the sleeve 20, one end of the second spring 25 is fixedly connected to the bottom end of the sliding rod 21, the other end of the second spring is fixedly connected to the inner bottom wall of the sleeve 20, the top of the sliding rod 21 is an arc surface, the check assembly is used for temporarily preventing the sliding rod 21 from automatically resetting after the sliding rod 21 slides to the outside of the sleeve 20, the sliding rod 21 can be automatically reset until the check assembly is impacted, the inner wall of the brake wheel 10 is provided with a transverse groove 26, the second trigger block 22 can transversely slide in the transverse groove 26, a third spring (not shown) is arranged between the first trigger block and the transverse groove 26, one end of the third spring is fixedly connected to the second trigger block 22, the other end of the third spring is fixedly connected to the inner wall of the transverse groove 26, the second trigger block 22 is positioned in front of the movement stroke of the first trigger block 16, the annular clamping plate 23 is composed of a plurality of teeth with right-angled triangle cross sections, the clamping block 24 is arranged on the second trigger block 22 and is positioned at one end close to the annular clamping plate 23, the cross section of the clamping block is also arranged as a right-angled triangle matched with the teeth, the effect of the arrangement is that the centrifugal force applied to the sliding rod 21 is smaller when the first rotating shaft 501 is at normal rotating speed, so that the sliding rod 21 cannot stretch, When the second driving member is stopped, the sliding rod 21 is not abutted against the second trigger block 22, but is abutted against the first trigger block 16 at the rear of the movement stroke thereof, so that the flexible braking of the wire reel 2 (that is, the friction braking of the brake pad 14 and the friction part 17 is the flexible braking) is realized under normal conditions, when the rotation speed of the first rotating shaft 501 is too high (when the flexible braking cannot meet the braking effect), the rotation speed of the sliding rod 21 is too high (this is an abnormal condition), the centrifugal force applied to the sliding rod 21 becomes large, when the centrifugal force applied to the sliding rod 21 is larger than the elastic force of the second spring 25, the sliding rod 21 slides outwards along the inner wall of the sleeve 20, So that the slide bar 21 is extended (synchronously stretching the second spring 25), when the second driving piece is stopped, the slide bar 21 cannot be automatically reset under the action of the non-return component, and at the moment, the slide bar 21 contacts and extrudes the end part of the second trigger block 22, so that the second trigger block 22 horizontally slides along the transverse groove 26 and compresses the third spring, the sliding of the second trigger block 22 drives the clamping block 24 to synchronously move, so that the clamping block 24 is inserted into the annular clamping plate 23, hard braking (namely clamping braking between the clamping block 24 and the annular clamping plate 23, impact generated by the braking can cause irreversible damage to the second driving wheel 9 and the braking wheel 10, Therefore, under normal conditions, flexible braking is adopted, and hard braking can be started only under abnormal conditions, so that the wire reel 2 stops rotating instantly, after triggering is finished, the second trigger block 22 automatically resets under the action of the third spring, the non-return component automatically resets under the action of impact, and the slide rod 21 also automatically resets under the action of the second spring 25.
Preferably, the check assembly comprises a transmission rod 27, the transmission rod 27 is slidably disposed on the slide rod 21, a first abutting portion 28 is disposed on the transmission rod 27, a second abutting portion 29 is disposed on the inner wall of the sleeve 20, a clamping groove 30 adapted to the first abutting portion 28 is disposed on the inner wall of the sleeve 20, the second abutting portion 29 and the clamping groove 30 are both located on the moving stroke of the first abutting portion 28, specifically, the transmission rod 27 is in a shape of '冂', and comprises a first horizontal segment 2701, a second horizontal segment 2702 and a vertical segment 2703, one end of the first horizontal segment 2701 is located at the top end of the slide rod 21 and extends to the outside of the slide rod 21, the vertical segment 2703 is located inside the slide rod 21, the second horizontal segment 2702 is located at the bottom end of the slide rod 21 and extends to the outside of the slide rod 21, the extending area is the first abutting portion 28, the cross section of the first abutting portion 28 is a wedge-shaped surface, the second abutting portion 29 is also wedge-shaped in cross section, a fourth spring 31 is arranged between the vertical section 2703 and the slide bar 21, one end of the fourth spring 31 is fixedly connected to the vertical section 2703, the other end is fixedly connected to the slide bar 21, the function of the arrangement is that when the rotation speed of the first rotation shaft 501 is too high, the slide bar 21 is driven to move horizontally along the inner wall of the sleeve 20 (simultaneously, the second spring 25 is stretched), the first abutting portion 28 is driven to move vertically, when the wedge-shaped surface of the first abutting portion 28 contacts and presses the wedge-shaped surface of the second abutting portion 29, the transmission rod 27 moves horizontally, the fourth spring 31 is compressed, then the slide bar 21 continues to slide, and when the first abutting portion 28 passes through the clamping groove 30, the elasticity of the fourth spring 31 is released, the transmission rod 27 moves reversely, the first abutting portion 28 is clamped with the clamping groove 30, the sliding bar 21 cannot continue to slide, when the second driving member stops rotating, the second triggering block 22 is made to collide with the first horizontal segment 2701 of the driving rod 27, which has the advantages that firstly, the clamping block 24 is clamped with the annular clamping plate 23, so as to realize hard braking, secondly, the second triggering block 22 can provide a reverse acting force for the first horizontal segment 2701, so that the driving rod 27 horizontally moves and compresses the fourth spring 31, the clamping effect of the first abutting part 28 and the clamping groove 30 is synchronously released in the horizontal movement process of the driving rod 27, and the sliding rod 21 automatically resets under the action of the second spring 25.
Further, the inner wall of the avoidance groove 15 is provided with an infrared sensor 32, the infrared sensor 32 is electrically connected with the second driving member, specifically, the infrared sensor 32 is arranged at the joint of the arc-shaped side wall and the right bottom wall of the avoidance groove 15 and is located on the movement stroke of the end part of the extension state of the slide bar 21, and the opening and closing of the second driving member is controlled based on the sensing condition of the infrared sensor 32.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (2)
1. The intelligent welding robot comprises a body, wherein a wire reel and a wire feeding mechanism are arranged on the body, and the wire reel is pulled to rotate based on the tension of the wire feeding mechanism on a welding wire, and the intelligent welding robot is characterized by further comprising a braking mechanism;
when the wire feeding mechanism enters a stop state from an operation state, the wire reel synchronously stops rotating through the braking mechanism;
The wire feeding mechanism comprises a plurality of wire feeding wheels and a second driving piece, wherein the body is fixedly connected with a shell, a plurality of wire feeding wheels are fixedly connected with rotating shafts, the rotating shafts are rotatably arranged on the inner wall of the shell, and the second driving piece is connected with one of the rotating shafts;
The braking mechanism comprises a first driving wheel and a second driving wheel, wherein the first driving wheel is rotatably arranged on the inner wall of the shell, one of the rotating shafts is a first rotating shaft, the first rotating shaft is a rotating shaft connected with the output end of a second driving piece, a braking wheel is rotatably arranged on the first rotating shaft, the second driving wheel is rotatably arranged on the inner wall of the shell, the second driving wheel is sleeved outside the braking wheel, the first driving wheel is connected with the second driving wheel through a driving belt, a passive braking component is arranged between the braking wheel and the second driving wheel, the passive braking component comprises a triggering rod and a braking sheet, the triggering rod is fixedly connected on the first rotating shaft, the brake wheel is provided with an avoidance groove, the inner wall of the avoidance groove is slidably connected with a first trigger block, the brake block is fixedly connected to the bottom end of the first trigger block, the inner wall of the second driving wheel is provided with a friction part matched with the brake block to enable the brake wheel to stop rotating, the top end of the first trigger block is positioned on the movement stroke of the trigger rod, the inner bottom wall of the avoidance groove is provided with a movable groove, an elastic piece is arranged between the first trigger block and the movable groove, the first driving wheel is fixedly connected with a mounting shaft, the wire reel is detachably mounted on the mounting shaft, the outer surface of the mounting shaft is fixedly connected with a limiting block, and the wire reel and the inner wall are provided with a limiting groove matched with the limiting block;
The first rotating shaft rotates to drive the trigger rod on the outer side wall of the first rotating shaft to synchronously rotate, when the trigger rod is abutted to the bottom wall on the right side of the avoidance groove, the trigger rod can drive the brake wheel to synchronously rotate under the abutting action, after wire feeding of the wire feeding mechanism is completed, namely when the second driving piece controls the first rotating shaft to stop rotating, the brake wheel continuously rotates under the action of inertia, the top of the first trigger block is contacted with the trigger rod, the first trigger block vertically moves downwards, so that the brake block at the bottom end of the first trigger block is contacted with and extruded by the friction part on the inner wall of the second driving wheel, the second driving wheel is forced to stop under the action of friction force, and then the welding wire disc stops rotating, so that welding wires are prevented from bending, after extrusion is completed, the brake wheel stops rotating, and therefore the extrusion effect of the trigger rod on the first trigger block disappears, and the first trigger block automatically resets under the action of elasticity of the elastic piece.
2. The intelligent welding robot of claim 1, wherein the first rotating shaft is of a split type structure, and a speed change mechanism is arranged between split parts of the first rotating shaft.
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| CN202311493217.6A CN117226217B (en) | 2023-11-10 | 2023-11-10 | Intelligent welding robot |
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| FI124236B (en) * | 2010-12-01 | 2014-05-15 | Kemppi Oy | Arrangement in a wire feed device of a welding assembly and method for rolling out welding wire |
| JP2012245557A (en) * | 2011-05-31 | 2012-12-13 | Daihen Corp | Wire reel supporting device |
| CN114833426B (en) * | 2022-04-29 | 2023-03-24 | 温岭阿凡达机电有限公司 | an electric welding machine |
| CN116475541B (en) * | 2023-06-26 | 2023-10-03 | 山东智迈德智能科技有限公司 | Submerged arc welding wire reel supporting device |
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Effective date of registration: 20240709 Address after: Room 241, No. 668, Xinzhuan Road, Xinqiao Town, Songjiang District, Shanghai, 2016 Applicant after: SHANGHAI BAXI ROBOTS Co.,Ltd. Country or region after: China Address before: No.1 Duanjia Industrial Park, Tangwang Town, Licheng District, Jinan City, Shandong Province, 250106 Applicant before: Jinan zhuoshuchen Machinery Co.,Ltd. Country or region before: China |
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