CN116197579A - Automatic welding device for automobile exhaust pipe and control method - Google Patents
Automatic welding device for automobile exhaust pipe and control method Download PDFInfo
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- CN116197579A CN116197579A CN202310035516.9A CN202310035516A CN116197579A CN 116197579 A CN116197579 A CN 116197579A CN 202310035516 A CN202310035516 A CN 202310035516A CN 116197579 A CN116197579 A CN 116197579A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention relates to the technical field of welding, and particularly discloses an automatic welding device for an automobile exhaust pipe and a control method thereof.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an automatic welding device for an automobile exhaust pipe and a control method.
Background
The welding is a very common processing mode in production, in the field of automobile parts, materials used by automobiles with different grades are different due to price differentiation of the automobiles, even though the materials are exhaust pipes of the automobiles, welding wires used for welding different materials are different in the welding process, and the fluidity of liquid generated by different welding wires when melting is also different in the automatic welding process, so that if the same welding flow is used in the automatic welding process, the generated welding seam is different under the condition that the welding wire materials and the welding materials are different, and especially in the process of scale welding, the quality of the newly generated scale welding seam is poor under the condition that the welding wire materials and the welding materials are obviously changed due to the difference of the welding seam, so that the welding seam is not in line with the requirements.
At present, automatic scale welding in the pipeline welding process can be realized by matching the left-right swing of a welding electroprobe with the uniform-speed rotation of a pipeline, and the problem is that the adaptation adjustment can not be carried out according to the welding wire material and the welding material change.
Disclosure of Invention
The invention aims to provide an automatic welding device and a control method for an automobile exhaust pipe, which solve the following technical problems:
and (3) adaptively adjusting the welding wire material and the welding material under the condition of changing the welding wire material and the welding material, and maintaining the welding quality of automatic fish scale welding.
The aim of the invention can be achieved by the following technical scheme:
an automatic welding device for an automobile exhaust pipe comprises a pipeline clamping assembly and a welding assembly for welding a pipeline,
the pipeline clamping assembly comprises a clamping base, a chuck is rotationally connected to the clamping base and used for clamping a welding pipeline, the axis of the welding pipeline coincides with the rotation axis of the chuck after the clamping is completed, a supporting seat is arranged on the side face of the chuck, and a driving assembly is arranged in the supporting seat and used for driving the chuck to rotate;
the welding assembly comprises a mounting seat, a welding gun head, a wire supply pipe and an angle adjusting unit, wherein an electrography of the welding gun head is in a vertical state, the wire supply pipe is used for providing welding wires, and the angle adjusting unit is used for enabling the welding gun head to change angles around the circle center of a tangent plane circle within a plane where the tangent plane circle of a welding pipeline is located within a range of 90 degrees;
the welding gun head is rotationally connected to the central point of the mounting seat, and a reciprocating swing assembly is arranged in the mounting seat and used for driving the welding gun head to swing reciprocally around the central point of the mounting seat.
Through the technical scheme: the reciprocating swing assembly drives the mounting seat to reciprocate to be matched with the driving assembly to drive the chuck to rotate, conventional scale welding is achieved, then, when an exhaust pipeline made of other materials is welded, the position of the welding point is adjusted in the range of a quarter circle from the upper vertex of the circle through the angle adjusting assembly, so that the inclination degree of the welding point is different, the gravity of liquid received by welding wires after melting is unchanged, the angle between tangential component force and vertical line is reduced, and accordingly, larger tangential component force is obtained, and welding wires with poor fluidity after melting can achieve the same flowing effect as welding wires with good fluidity, so that the quality of scale welding is maintained.
Further: the welding assembly further comprises a fixing seat, a stand column is arranged on the fixing seat, a wire storage box is slidably connected to the side face of the stand column, the wire supply pipe is connected with the wire storage box and driven to lift through a lifting piece in the stand column, a bearing plate is connected to the side face of the wire storage box, and the angle adjusting unit is arranged on the bearing plate.
Further: the angle adjusting unit comprises an arc guide plate, the outer ring of the arc guide plate is provided with a part gear, a driving gear is meshed on the part gear, the side face of the arc guide plate is provided with a connecting plate, the driving gear is rotationally connected to the connecting plate, the driving gear is driven to rotate by a power piece, the inner ring of the arc guide plate is provided with a sliding rail, the connecting plate is rotationally connected with a pulley, the pulley rolls along the sliding rail of the arc guide plate, the side face of the connecting plate is connected with a welding gun base, the welding gun base is connected with a mounting seat, the welding gun head is connected to the mounting seat, and the center of the arc guide plate coincides with the axis of a welding pipeline.
Further: the welding gun is characterized in that a brake assembly used for fixing the position of the connecting plate on the arc guide plate is arranged on the side face of the connecting plate, an angle sensor is arranged on the welding gun base, the brake assembly comprises a mounting plate connected to the side face of the connecting plate, an arc convex plate is arranged on the side face of the mounting plate, the circle center of the arc convex plate coincides with the axis of a welding pipeline, a pair of baffles are arranged at the bottom of the mounting plate, a pair of base plates are arranged on the inner sides of the baffles, brake pads are connected on the inner sides of the base plates, air cylinders are arranged on the two sides of the mounting plate and used for pushing the brake pads to move, the brake pads are of arc structures, and the radius of the arc of the brake pads is identical to that of the mounting plate.
Through the technical scheme: the motor can remote control, and the motor drive connecting plate slides along the circular arc guide board to carry out circular motion around welding pipe line tangent plane circle center, and then realize the purpose of automatic adjustment welder head angle, further, the cylinder of brake subassembly also can realize remote control, and brake subassembly realizes braking through making a pair of brake block clamp circular arc flange, and wherein the circular arc radius of brake block is the same with the radius of mounting panel, thereby realizes the complete laminating of optional position, promotes braking effect.
Further: the mounting plate bottom is equipped with the second connecting rod, second connecting rod one end rotates to be connected on the mounting plate, the cylinder includes the push rod, the middle section at the second connecting rod is connected to the push rod, promotes the second connecting rod and rotates on the mounting plate, the other end and the first connecting rod of second connecting rod are connected, the first connecting rod passes the baffle and is connected with the base plate.
Through the technical scheme: the second connecting rod forms a lever structure, after the air cylinder is started, the formation of the air cylinder can be amplified through the rotation of the second connecting rod, so that the stroke of the first connecting rod is larger, the response is rapid, the braking is performed more rapidly after a braking command is generated, and the error between the final braking position and the ideal braking position is reduced.
Further: the side of the welding gun head is provided with a camera, the camera is fixed on the mounting seat through a supporting rod, and a protective structure is arranged outside the camera.
Further: the side of the arc guide plate is provided with a support frame, and the support frame is a truss structure formed by a plurality of triangles.
Further: the reciprocating swing assembly comprises a mounting seat, a through groove is formed in the front end of the mounting seat, a rotary table is connected in the mounting seat in a rotary mode, an eccentric shaft is eccentrically arranged on the rotary table, an outer rod is further connected in the mounting seat in a rotary mode, a long straight groove is formed in one side of a rotating shaft of the outer rod, the eccentric shaft is connected in the long straight groove in a sliding mode, and the other side of the outer rod is connected with the mounting seat.
Further: the utility model discloses a rotary table, including outer pole, inner rod, fixed connection pole, rotary table, mounting seat, rotary table, fixed connection pole, the opposite side sliding connection of outer pole has the inner rod, the fixed connection pole is worn groove sliding connection and is in the mount pad side, the inner rod middle section is equipped with wears the pole, wear pole outside cover and be equipped with the pole cover, the pole cover is the circular arc structure taking the centre of a circle of carousel as the centre of a circle, rotate on the pole cover and be connected with the bull stick, the bull stick passes and with mount pad threaded connection, the top of bull stick is equipped with the knob.
Through the technical scheme: the rotating rod can enable the position of the rod sleeve to move up and down, so that the connecting effect of the rod sleeve and the penetrating rod drives the inner rod to stretch and retract in the outer rod, after the inner rod stretches, the connecting point of the fixed rod, which is far away from the outer rod, is located away from the mounting seat, the swing amplitude is increased, the swing amplitude can be adjusted autonomously, and welding seams with different widths can be welded.
A control method applied to an automatic welding device for an automobile exhaust pipe according to claims 1-9, comprising the following method steps:
s1, clamping and fixing a pipe fitting with welding through a chuck;
s2, driving the upper and lower positions of the welding gun base to change through lifting pieces in the upright posts until an electrography on the welding gun base enters a welding effective working range;
s3, adjusting the angle of the electric pencil of the welding gun base by using the tangent plane circle center of the welded pipe fitting as a base point through an angle adjusting assembly, and fixing the welding gun base through a braking assembly;
s4, starting the electroprobe and the wire supply pipe, and then driving the chuck and the pipe fitting clamped on the chuck to rotate at uniform speed through a driving piece arranged in the supporting seat.
The invention has the beneficial effects that:
(1) According to the invention, the mounting seat is driven by the reciprocating swinging component to reciprocate and the chuck is driven by the driving component to rotate, so that conventional scale welding is realized, then, when an exhaust pipeline made of other materials is welded, the position of a welding point is adjusted from the upper vertex of a circle to the range of a quarter circle by the angle adjusting component, so that the inclination degree of the welding point is different, the gravity of liquid received by welding wires after melting is unchanged, the angle between tangential component force and vertical line is reduced, and further, a larger tangential component force is obtained, so that welding wires with poor fluidity after melting can achieve the same flowing effect as welding wires with good fluidity, and the quality of scale welding is maintained.
(2) According to the invention, the motor is remotely controlled, the motor drives the connecting plate to slide along the arc guide plate, so that circular motion is performed around the circle center of the tangent plane of the welding pipe, the aim of automatically adjusting the angle of the welding gun head is fulfilled, further, the air cylinder of the braking assembly can also be remotely controlled, the braking assembly can realize braking by enabling a pair of brake pads to clamp the arc convex plate, the radius of the arc of the brake pads is identical to that of the mounting plate, and therefore, complete fitting at any position is realized, and the braking effect is improved.
(3) According to the invention, the lever structure is formed by the second connecting rod, after the air cylinder is started, the formation of the air cylinder can be amplified by the rotation of the second connecting rod, so that the stroke of the first connecting rod is larger, the response is rapid, the braking is more rapidly performed after the braking command is generated, and the error between the final braking position and the ideal braking position is reduced.
(4) According to the invention, the position of the rod sleeve can be moved up and down by rotating the rotating rod, so that the inner rod is driven to stretch and retract in the outer rod through the connection effect of the rod sleeve and the penetrating rod, and the fixed connecting rod is farther from the position of the connecting point of the outer rod and the mounting seat after the inner rod is extended, so that the swing amplitude is increased, the swing amplitude can be adjusted independently, and welding seams with different widths can be welded.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged partial schematic view of the structure of FIG. 1A in accordance with the present invention;
FIG. 3 is an enlarged partial schematic view of the structure at B of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic illustration of the position of a welding gun head and a welding pipe in accordance with the present invention;
FIG. 5 is a schematic view of a support frame structure according to the present invention;
FIG. 6 is a schematic illustration of the brake assembly of the present invention;
FIG. 7 is a schematic view of a reciprocatory swing assembly of the present invention;
FIG. 8 is a schematic view of the front face structure of the mounting base of the present invention;
FIG. 9 is a schematic diagram of the result of the process of welding the fish scale pattern according to the present invention.
Reference numerals illustrate:
10. a fixing seat; 11. a column; 12. a yarn storage box; 13. scale patterns;
20. a receiving plate; 21. an arc guide plate; 22. a partial gear; 23. a connecting plate; 24. a drive gear; 25. a motor; 26. a pulley; 27. a support frame;
30. arc convex plate; 31. a mounting plate; 32. a baffle; 33. a substrate; 34. a brake pad; 35. a cylinder; 36. a first link; 37. a second link; 38. a push rod;
40. a welding gun base; 41. a mounting base; 42. a welding gun head; 43. a wire supply pipe; 44. a camera; 45. penetrating a groove;
50. a clamping base; 51. a support base; 52. a chuck;
60. penetrating the rod; 61. an inner rod; 62. an outer rod; 63. a long straight groove; 64. a turntable; 65. an eccentric shaft; 66. a rod sleeve; 67. a rotating rod; 68. a knob; 69. and fixing the connecting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, in one embodiment, an automated welding apparatus for an automotive exhaust pipe is provided, comprising:
the automatic welding device for the automobile exhaust pipe comprises a pipeline clamping assembly and a welding assembly for welding the pipeline, wherein the pipeline clamping assembly comprises a clamping base 50, a chuck 52 is rotationally connected to the clamping base 50, the chuck 52 is used for clamping a welded pipeline, the axis of the welded pipeline coincides with the rotation axis of the chuck 52 after the clamping is finished, a supporting seat 51 is arranged on the side surface of the chuck 52, and a driving assembly is arranged in the supporting seat 51 and used for driving the chuck 52 to rotate;
the welding assembly comprises a mounting seat 41, a welding gun head 42, a wire supply pipe 43 and an angle adjusting unit, wherein an electrography of the welding gun head 42 is in a vertical state, the wire supply pipe 43 is used for supplying welding wires, and the angle adjusting unit is used for enabling the welding gun head 42 to change angles within a range of 90 degrees around the circle center of a tangent plane circle in a plane where a tangent plane circle of a welding pipeline is located;
it is worth noting that in the case of the vertical state of the electrography, the angle change from 0 ° -90 ° realizes the whole process from zero to maximum tangential force component, so the angle change of the welding gun head 42 is performed within the range of 90 ° around the tangent circle center.
The welding gun head 42 is rotatably connected to the center point of the mounting seat 41, and a reciprocating swing assembly is arranged in the mounting seat 41 and used for driving the welding gun head 42 to swing reciprocally around the center point of the mounting seat 41.
Through the technical scheme: the reciprocating swinging assembly drives the mounting seat 41 to reciprocate to cooperate with the driving assembly to drive the chuck 52 to rotate, so that conventional scale welding is realized, then, when an exhaust pipeline made of other materials is welded, the position of a welding point is adjusted from the upper vertex of a circle to the range of a quarter circle through the angle adjusting assembly, so that the inclination degree of the welding point is different, the gravity of liquid received by welding wires after melting is unchanged, the angle between tangential component force and vertical line is reduced, and further, a larger tangential component force is obtained, so that welding wires with poor fluidity after melting can achieve the same flowing effect as welding wires with good fluidity, and the quality of scale welding is maintained.
The welding assembly further comprises a fixing seat 10, the fixing seat 10 is provided with a stand column 11, the side face of the stand column 11 is slidably connected with a wire storage box 12, a wire supply pipe 43 is connected with the wire storage box 12, an automatic wire supply structure is arranged in the wire storage box 12, the automatic wire supply structure is realized through a plurality of driving friction wheels, the welding assembly belongs to the prior art, details are not repeated in a concrete process, lifting elements in the stand column 11 are driven to lift, the lifting elements can be hydraulic telescopic cylinders, the side face of the wire storage box 12 is connected with a bearing plate 20, and an angle adjusting unit is arranged on the bearing plate 20.
The angle adjustment unit includes circular arc guide board 21, circular arc guide board 21 outer lane is equipped with partial gear 22, the meshing has drive gear 24 on the partial gear 22, circular arc guide board 21 side is equipped with connecting plate 23, drive gear 24 rotates to be connected on connecting plate 23, drive gear 24 passes through the power piece drive and rotates, the power piece can be motor 25, circular arc guide board 21 inner circle is equipped with the slide rail, it is connected with pulley 26 to rotate on the connecting plate 23, pulley 26 rolls along the slide rail of circular arc guide board 21, connecting plate 23 side is connected with welder base 40, be connected with mount pad 41 on the welder base 40, welder head 42 is connected on mount pad 41, the centre of a circle and the welding pipe axis coincidence of circular arc guide board 21.
The side of the connecting plate 23 is provided with a brake assembly for fixing the position of the connecting plate 23 on the arc guide plate 21, the welding gun base 40 is provided with an angle sensor, the angle sensor is used for detecting the angle of the connecting plate 40, in the embodiment, the angle of the connecting plate 23 relative to the welding pipeline can be measured and calculated by converting the angle of the connecting plate 42 and the angle can be measured and calculated by converting the angle to a preset angle, the brake assembly brakes, the brake assembly comprises a mounting plate 31 connected to the side of the connecting plate 23, the side of the mounting plate 31 is provided with an arc convex plate 30, the circle center of the arc convex plate 30 coincides with the axis of the welding pipeline, the bottom of the mounting plate 31 is provided with a pair of baffle plates 32, the inner sides of the pair of baffle plates 32 are respectively provided with a base plate 33, the inner sides of the base plate 33 are connected with a brake pad 34, the two sides of the mounting plate 31 are respectively provided with an air cylinder 35, the air cylinder 35 is used for pushing the brake pad 34 to move, obviously, the air cylinder 35 can also be other existing products or parts capable of driving the brake pad 34 to move linearly, and the brake pad 34 has an arc structure, and the arc radius of the brake pad 34 is identical to the radius of the mounting plate 31.
Through the technical scheme: the motor 25 can remote control, and motor 25 drive connecting plate 23 slides along circular arc guide board 21 to carry out circular motion around welding pipeline tangent plane circle centre of a circle, and then realize the purpose of automatic adjustment welder head 42 angle, further, brake assembly's cylinder 35 also can realize remote control, and brake assembly realizes the braking through making a pair of brake block 34 clamp circular arc flange 30, and wherein the circular arc radius of brake block 34 is the same with the radius of mounting panel 31, thereby realizes the complete laminating of optional position, promotes braking effect.
The bottom of the mounting plate 31 is provided with a second connecting rod 37, one end of the second connecting rod 37 is rotatably connected to the mounting plate 31, the air cylinder 35 comprises a push rod 38, the push rod 38 is connected to the middle section of the second connecting rod 37, the second connecting rod 37 is pushed to rotate on the mounting plate 31, the other end of the second connecting rod 37 is connected with a first connecting rod 36, the first connecting rod 36 passes through the baffle 32 to be connected with the base plate 33, wherein the connection of the second connecting rod 37 and the push rod 38 and the flexible connection of the first connecting rod 36 and the second connecting rod 37 refer to that a certain displacement is allowed to be generated at a connecting point so as to prevent the structure at the connecting point from being damaged, and in the embodiment, the flexible connection is realized through a long groove and a straight rod sliding in the long groove.
Through the technical scheme: the second connecting rod 37 forms a lever structure, after the air cylinder 35 is started, the formation of the air cylinder 35 can be amplified through the rotation of the second connecting rod 37, so that the stroke of the first connecting rod 36 is finally larger, the response is rapid, the braking is performed more rapidly after the braking command is generated, and the error between the final braking position and the ideal braking position is reduced.
The side of the welding gun head 42 is provided with a camera 44, the camera 44 is fixed on the mounting seat 41 through a supporting rod, a protective structure is arranged outside the camera 44, the protective structure at least comprises a temperature protective structure and a light protective structure, the temperature protective structure can be a quartz cotton heat-proof layer, and the light protective structure can be a black lens with a color number within 7-11.
It should be noted that, the camera 44 collects image information similar to fig. 9, after welding is completed, the image information is input into a computer and corresponding software to analyze, and the quality of the finished product ichthyes 13 is determined, where the interval between the ichthyes 13 is one of the parameters of analysis and determination, for example, if the interval between two adjacent ichthyes is too large, it may be determined that the liquid fluidity of the melted welding wire is insufficient or the electric gun voltage is insufficient to melt the welding wire, so that a great amount of experience data can be obtained through repeated welding and determination, thereby assisting in supporting the automatic welding process.
The arc guide plate 21 is provided with a support frame 27 on the side surface, and the support frame 27 is a truss structure formed by a plurality of triangles and is used for improving the stability of the arc guide plate 21.
The reciprocating swing assembly comprises a mounting seat 41, a through groove 45 is formed in the front end of the mounting seat 41, a rotary table 64 is connected in a rotary mode in the mounting seat 41, an eccentric shaft 65 is eccentrically arranged on the rotary table 64, an outer rod 62 is further connected in the mounting seat 41 in a rotary mode, a long straight groove 63 is formed in one side of a rotating shaft of the outer rod 62, the eccentric shaft 65 is connected in the long straight groove 63 in a sliding mode, and the other side of the outer rod 62 is connected with the mounting seat 41.
The other side of the outer rod 62 is internally and slidably connected with an inner rod 61, the tail end of the inner rod 61 is provided with a fixing rod 69, the fixing rod 69 penetrates through the penetrating groove 45 to be slidably connected to the side face of the mounting seat 41, the middle section of the inner rod 61 is provided with a penetrating rod 60, the outer side of the penetrating rod 60 is sleeved with a rod sleeve 66, the rod sleeve 66 is of an arc-shaped structure taking the circle center of the rotary table 64 as the circle center, the rod sleeve 66 is rotatably connected with a rotary rod 67, the rotary rod 67 penetrates through and is in threaded connection with the mounting seat 41, and the top end of the rotary rod 67 is provided with a knob 68.
Through the technical scheme: the rotating rod 67 can enable the rod sleeve 66 to move up and down, so that the connecting effect of the rod sleeve 66 and the penetrating rod 60 drives the inner rod 61 to stretch and retract in the outer rod 62, after the inner rod 61 stretches, the fixing rod 69 is further away from the connecting point of the outer rod 62 and the mounting seat 41, the swing amplitude is increased, the swing amplitude can be adjusted autonomously, and welding seams with different widths can be welded.
A control method of an automotive exhaust pipe automatic welding device applied to an automotive exhaust pipe automatic welding device according to claims 1 to 9, comprising the steps of:
s1, clamping and fixing a pipe fitting with welding through a chuck 52;
s2, driving the upper and lower positions of the welding gun base 40 to change through a lifting piece in the upright post 11 until a welding effective working range of an electrography on the welding gun base 40 enters;
s3, adjusting the angle of the electric pencil of the welding gun base 40 by using the tangent circle center of the welded pipe fitting tangent circle as a base point through an angle adjusting assembly, and fixing the welding gun base 40 through a braking assembly;
s4, starting the electrography and the wire supply pipe 43, and then driving the chuck 52 and the pipe clamped on the chuck 52 to rotate at uniform speed through a driving piece arranged in the supporting seat 51.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. The utility model provides an automatic welding set of vehicle vent-pipe, includes pipeline clamping assembly and carries out welded welding set of pipeline, its characterized in that:
the pipeline clamping assembly comprises a clamping base (50), a chuck (52) is rotatably connected to the clamping base (50), a supporting seat (51) is arranged on the side face of the chuck (52), and a driving assembly is arranged in the supporting seat (51) and used for driving the chuck (52) to rotate;
the welding assembly comprises a mounting seat (41), a welding gun head (42), a wire supply pipe (43) and an angle adjusting unit, wherein an electrography of the welding gun head (42) is in a vertical state, the wire supply pipe (43) is used for providing welding wires, and the angle adjusting unit is used for enabling the welding gun head (42) to change in angle within a range of 90 degrees around the circle center of a tangent plane circle in a plane where a tangent circle of a welding pipeline is located;
the welding gun head (42) is rotationally connected to the center point of the mounting seat (41), and a reciprocating swing assembly is arranged in the mounting seat (41) and used for driving the welding gun head (42) to swing reciprocally around the center point of the mounting seat (41).
2. The automatic welding device for the automobile exhaust pipe according to claim 1, wherein the welding assembly further comprises a fixing seat (10), a stand column (11) is arranged on the fixing seat (10), a wire storage box (12) is slidably connected to the side face of the stand column (11), the wire supply pipe (43) is connected with the wire storage box (12), lifting is driven by a lifting piece in the stand column (11), a bearing plate (20) is connected to the side face of the wire storage box (12), and the angle adjusting unit is arranged on the bearing plate (20).
3. The automatic welding device for the automobile exhaust pipe according to claim 1, wherein the angle adjusting unit comprises an arc guide plate (21), a part gear (22) is arranged on the outer ring of the arc guide plate (21), a driving gear (24) is meshed on the part gear (22), a connecting plate (23) is arranged on the side face of the arc guide plate (21), the driving gear (24) is rotationally connected to the connecting plate (23), the driving gear (24) is driven to rotate by a power piece, a sliding rail is arranged on the inner ring of the arc guide plate (21), a pulley (26) is rotationally connected to the connecting plate (23), the pulley (26) rolls along the sliding rail of the arc guide plate (21), a welding gun base (40) is connected to the side face of the connecting plate (23), a mounting seat (41) is connected to the welding gun head (42), and the circle center of the arc guide plate (21) coincides with the axis of a welding pipeline.
4. An automatic welding device for an automobile exhaust pipe according to claim 3, characterized in that a brake assembly for fixing the position of the connecting plate (23) on the arc guide plate (21) is arranged on the side surface of the connecting plate (23), an angle sensor is arranged on the welding gun base (40), the brake assembly comprises a mounting plate (31) connected to the side surface of the connecting plate (23), an arc convex plate (30) is arranged on the side surface of the mounting plate (31), the circle center of the arc convex plate (30) coincides with the axis of a welding pipeline, a pair of baffle plates (32) are arranged at the bottom of the mounting plate (31), base plates (33) are arranged on the inner sides of the baffle plates (32), brake pads (34) are connected on the inner sides of the base plates (33), air cylinders (35) are arranged on the two sides of the mounting plate (31), the air cylinders (35) are used for pushing the brake pads (34) to move, and the brake pads (34) are of an arc structure, and the arc radius of the brake pads (34) is identical with the radius of the mounting plate (31).
5. The automatic welding device for the automobile exhaust pipe according to claim 4, wherein a second connecting rod (37) is arranged at the bottom of the mounting plate (31), one end of the second connecting rod (37) is rotatably connected to the mounting plate (31), the air cylinder (35) comprises a push rod (38), the push rod (38) is connected to the middle section of the second connecting rod (37), the second connecting rod (37) is pushed to rotate on the mounting plate (31), the other end of the second connecting rod (37) is connected with a first connecting rod (36), and the first connecting rod (36) penetrates through the baffle plate (32) to be connected with the base plate (33).
6. The automatic welding device for the automobile exhaust pipe according to claim 1, wherein a camera (44) is arranged on the side face of the welding gun head (42), and the camera (44) is fixed on the mounting seat (41) through a supporting rod.
7. An automatic welding device for an automobile exhaust pipe according to claim 3, characterized in that the side of the arc guide plate (21) is provided with a support frame (27), and the support frame (27) is a truss structure consisting of a plurality of triangles.
8. The automatic welding device for the automobile exhaust pipe according to claim 1, wherein the reciprocating swing assembly comprises a mounting seat (41), a through groove (45) is formed in the front end of the mounting seat (41), a rotary table (64) is rotationally connected to the mounting seat (41), an eccentric shaft (65) is eccentrically arranged on the rotary table (64), an outer rod (62) is rotationally connected to the mounting seat (41), a long straight groove (63) is formed in one side of a rotating shaft of the outer rod (62), the eccentric shaft (65) is slidably connected to the long straight groove (63), and the other side of the outer rod (62) is connected with the mounting seat (41).
9. The automatic welding device for the automobile exhaust pipe according to claim 8, wherein an inner rod (61) is connected in a sliding manner on the other side of the outer rod (62), a fixing rod (69) is arranged at the tail end of the inner rod (61), the fixing rod (69) penetrates through a penetrating groove (45) to be connected to the side face of the mounting seat (41) in a sliding manner, a penetrating rod (60) is arranged in the middle section of the inner rod (61), a rod sleeve (66) is sleeved on the outer side of the penetrating rod (60), the rod sleeve (66) is of an arc-shaped structure taking the center of a circle of the rotary disc (64) as the center of the circle, a rotary rod (67) is connected to the rod sleeve (66) in a rotating manner, the rotary rod (67) penetrates through the rotary rod and is connected with the mounting seat (41) in a threaded manner, and a knob (68) is arranged at the top end of the rotary rod (67).
10. A control method applied to an automatic welding device for an automobile exhaust pipe as claimed in claims 1 to 9, characterized by comprising the following method steps:
s1, clamping and fixing a pipe fitting with welding through a chuck (52);
s2, driving the upper and lower positions of the welding gun base (40) to change through a lifting piece in the upright post (11) until a electrography on the welding gun base (40) enters a welding effective working range;
s3, adjusting the angle of the electric pencil of the welding gun base (40) by using the circle center of the tangent plane circle of the welded pipe fitting as a base point through an angle adjusting assembly, and fixing the welding gun base (40) through a braking assembly;
s4, starting the electroprobe and the wire supply pipe (43), and then driving the chuck (52) and the pipe fitting clamped on the chuck (52) to rotate at uniform speed through a driving piece arranged in the supporting seat (51).
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| CN202310035516.9A CN116197579B (en) | 2023-01-10 | 2023-01-10 | Automatic welding device for automobile exhaust pipe and control method |
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| CN202310035516.9A CN116197579B (en) | 2023-01-10 | 2023-01-10 | Automatic welding device for automobile exhaust pipe and control method |
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