CN113305421B - Weld joint tracking welding system and method - Google Patents
Weld joint tracking welding system and method Download PDFInfo
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- CN113305421B CN113305421B CN202110565676.5A CN202110565676A CN113305421B CN 113305421 B CN113305421 B CN 113305421B CN 202110565676 A CN202110565676 A CN 202110565676A CN 113305421 B CN113305421 B CN 113305421B
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/044—Seam tracking
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
Abstract
The invention discloses a weld joint tracking welding system and a method, which belong to the technical field of laser welding and comprise a supporting seat, a welding mechanism and a tracking device, wherein the welding mechanism is used for welding a weld joint of a workpiece; the tracking device is installed in the supporting seat, the tracking device comprises an adjusting mechanism and a follow-up mechanism, the follow-up mechanism is installed in the welding mechanism, the follow-up mechanism comprises a follow-up part and a feedback part, the follow-up part moves along the welding mechanism along the welding seam and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism according to the pressure change. The invention achieves the technical effects of improving the efficiency and reducing the cost.
Description
Technical Field
The invention belongs to the technical field of laser welding, and particularly relates to a weld joint tracking welding system and method.
Background
Laser welding is a high-efficiency precise welding mode using a laser beam with high energy density as a heat source, and is widely applied to laser material processing technology. When performing laser welding on irregularly shaped welds such as circles, it is necessary to avoid the occurrence of positional misalignment of the welded workpieces.
At present, in the existing laser welding technology, a welding head is usually manually held to weld irregularly-shaped welding seams, the welding position of the welding head on a workpiece is manually adjusted, the welding head is manually controlled to be in contact with the welding seams on the workpiece, and the welding head is pushed to weld the welding seams step by step. However, in the process of welding the welding seam with the irregular shape by the manual handheld welding head, the welding quality of the welding seam varies with people, and particularly when the welding surface of the workpiece is uneven, the deviation of the welding position is easy to occur, and the requirement on the operation specificity is high, so that the production efficiency is low, and the production cost is high.
In summary, the conventional laser welding technology has the technical problems of low efficiency and high cost.
Disclosure of Invention
The invention aims to solve the technical problems of low efficiency and high cost in the existing laser welding technology.
In order to solve the technical problems, the invention provides a seam tracking welding system, which comprises: a support base; the welding mechanism is used for welding a welding seam of the workpiece; the tracking device is installed in the supporting seat, the tracking device comprises an adjusting mechanism and a follow-up mechanism, the follow-up mechanism is installed in the welding mechanism, the follow-up mechanism comprises a follow-up part and a feedback part, the follow-up part moves along the welding mechanism along the welding seam and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism according to the pressure change.
Further, the system further comprises: the feedback component is arranged on the track of the supporting seat and can move along the track.
Further, the system further comprises: and a baffle plate mounted to the support base, the baffle plate configured to limit a range of movement of the follower mechanism relative to the track.
Further, the adjusting mechanism includes: the balance valve is arranged on the supporting seat; the cylinder is arranged on the supporting seat, a push rod of the cylinder is connected with the feedback component, and the feedback component is connected with the welding mechanism; the air passage connector is used for connecting the balance valve with the cylinder body of the cylinder.
Further, the feedback means includes: the first mounting plate is in sliding connection with the supporting seat along the width direction of the welding line, the welding mechanism is mounted on the first mounting plate, and the adjusting mechanism controls the sliding direction of the first mounting plate; the follower component includes a follower mounted to the first mounting plate.
Further, the feedback means includes: the servo device is arranged on the cross sliding table, and the cross sliding table is connected with the first mounting plate.
Further, the follower mechanism further includes: the second mounting plate is connected with the cross sliding table, the follower is connected with the second mounting plate, and the follower is located between the cross sliding table and the welding mechanism.
Further, the follower mechanism further includes: and the universal joint is arranged on the feedback component, and the adjusting mechanism is connected with the universal joint.
Further, the follower mechanism further includes: the installation piece, the installation piece install in feedback part, universal joint install in the installation piece, adjustment mechanism with the installation piece is located the coplanar.
According to yet another aspect of the present invention, there is also provided a seam tracking welding method, the method comprising: the tracking device is supported by the supporting seat; the follow-up part moves along the welding seam along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding seam, the feedback part receives the pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism according to the pressure change.
The beneficial effects are that:
the invention provides a weld joint tracking welding system, which is characterized in that a tracking device is arranged on a supporting seat, a follow-up mechanism in the tracking device is arranged on a welding mechanism, and the welding mechanism is used for welding a weld joint of a workpiece. The follow-up part of the follow-up mechanism in the tracking device moves along the welding line along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding line, the feedback part receives the pressure change between the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism according to the pressure change. In the process that the welding mechanism welds irregular welding seams, the adjusting mechanism and the follow-up mechanism in the tracking device are mutually matched, if the welding surface is uneven, the follow-up component moves along the welding seams along the welding mechanisms and is attached to the corresponding workpiece surfaces of the welding seams, the feedback component receives pressure changes of the follow-up component and the workpiece surfaces and feeds back the pressure changes to the adjusting mechanism, the adjusting mechanism adjusts the welding positions of the welding mechanism according to the pressure changes, the welding mechanism can move along the welding seams, and at the moment, the welding mechanism can always keep at the positions aligned with the welding seams, so that the deviation of the welding positions is reduced. In the welding process of the welding seam, if the welding surface is uneven, the welding mechanism can automatically move along with the position of the welding seam and always keep at the position aligned with the welding seam, so that the efficiency is improved and the cost is reduced. Thereby achieving the technical effects of improving the efficiency and reducing the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram I of a seam tracking welding system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram II of a seam tracking welding system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram III of a seam tracking welding system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a seam tracking welding system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram fifth embodiment of a seam tracking welding system according to the present invention;
FIG. 6 is a schematic diagram of a seam tracking welding system according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for tracking a weld seam according to an embodiment of the present invention.
Detailed Description
The invention discloses a weld joint tracking welding system, which is characterized in that a tracking device is arranged on a supporting seat 1, a follow-up mechanism in the tracking device is arranged on a welding mechanism 2, and the welding mechanism 2 is used for welding a weld joint of a workpiece. The follow-up part of the follow-up mechanism in the tracking device moves along the welding line along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding line, the feedback part receives the pressure change between the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change. In the process that the welding mechanism 2 welds irregular welding seams, the adjusting mechanism and the follow-up mechanism in the tracking device are mutually matched, if the welding surface is uneven, the follow-up part moves along the welding seam along with the welding mechanism 2 and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change, the welding mechanism 2 can move along with the welding seam, and at the moment, the welding mechanism 2 can always be kept at the position aligned with the welding seam, so that the deviation of the welding position is reduced. Then in the welding process of the welding seam, if the welding surface is uneven, the welding mechanism 2 can automatically move along with the position of the welding seam and always keep at the position aligned with the welding seam, thereby improving the efficiency and reducing the cost. Thereby achieving the technical effects of improving the efficiency and reducing the cost.
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 obtained by a person skilled in the art based on the embodiments of the present invention are within the scope of the present invention; wherein reference to "and/or" in this embodiment indicates and/or two cases, in other words, reference to a and/or B in the embodiments of the present invention indicates two cases of a and B, A or B, and describes three states in which a and B exist, such as a and/or B, and indicates: only A and not B; only B and not A; includes A and B.
Also, in embodiments of the present invention, when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and the like are used in the embodiments of the present invention for illustrative purposes only and are not intended to limit the present invention.
Example 1
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, fig. 1 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention, fig. 2 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention, fig. 3 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention, fig. 4 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention, fig. 5 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention, fig. 6 is a schematic diagram of a seam tracking welding system provided by an embodiment of the present invention. The embodiment of the invention provides a weld joint tracking welding system, which comprises a supporting seat 1, a welding mechanism 2 and a tracking device, wherein the supporting seat 1, the welding mechanism 2 and the tracking device are respectively described in detail below:
for the support base 1 and the welding mechanism 2:
the support base 1 is configured to provide support, and the welding mechanism 2 is used for welding a weld seam of a workpiece, that is, a portion of the workpiece to be welded.
Specifically, the support base 1 has a space for mounting the cylinder 312, the balance valve 311, the guide rail 41, and the baffle 5, and the support base 1 can provide a supporting force for the cylinder 312, the balance valve 311, the guide rail 41, and the baffle 5. In the course of welding the weld, the below-described cylinder 312, the below-described balance valve 311, the below-described guide rail 41, and the below-described baffle 5 mounted on the support base 1 are also placed in fixed spatial positions by fixing the spatial positions in which the support base 1 is placed. The welding mechanism 2 may include a welding head and a mounting frame for fixing the welding head, the mounting frame being fixedly mounted on a carriage 33 described below, the mounting frame being movable together with the carriage 33 described below. The mounting bracket can carry out detachable with the soldered connection, for example connects through screw 6 between mounting bracket and the soldered connection, when the soldered connection needs to be changed, can realize separating mounting bracket and original soldered connection through dismantling screw 6, and the rethread screws 6 of tightening can realize installing mounting bracket and new soldered connection to be convenient for change or maintain the soldered connection of different models.
For tracking devices:
the tracking device is installed on the supporting seat 1, the tracking device comprises an adjusting mechanism and a follow-up mechanism, the follow-up mechanism is installed on the welding mechanism 2, the follow-up mechanism comprises a follow-up part and a feedback part, the follow-up part moves along the welding mechanism 2 along the welding seam and is attached to the surface of a workpiece corresponding to the welding seam (namely, the surface position of the welding seam in the workpiece), the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change. The pressure change means that when the follower component contacts the rugged region on the surface of the workpiece, the protrusion will have a force for jacking up the follower 323 in the follower component, and when the follower encounters the concavity, the force is caused by gravity to slide the follower 323 into the groove, so that the follower 323 receives forces of different magnitudes when encountering the rugged region.
The adjusting mechanism is configured to adjust a welding position of the welding mechanism 2, which is a welding position at which the welding head is positioned when welding the surface of the workpiece. The adjusting mechanism comprises a balance valve 311, an air cylinder 312 and an air passage joint 313, wherein the balance valve 311 is installed on the supporting seat 1, the air cylinder 312 is installed on the supporting seat 1, and the air passage joint 313 is respectively connected with the air cylinder 312 and the balance valve 311. The feedback component in the follow-up mechanism comprises a first mounting plate 321, a cross sliding table 322, a universal joint 324, a mounting block 325 and a second mounting plate, the follow-up component in the follow-up mechanism comprises a follow-up 323, the first mounting plate 321 and the supporting seat 1 are connected in a sliding manner, the welding mechanism 2 is mounted on the first mounting plate 321, and the cross sliding table 322 is mounted on the first mounting plate 321. The cross slide 322 includes a lateral adjustment handle 3221 and a longitudinal adjustment handle 3222, the lateral adjustment handle 3221 is used for adjusting a follower mounting bracket 3261 described below in a leftward or rightward direction on a horizontal plane, and the longitudinal adjustment handle 3222 is used for adjusting the follower mounting bracket 3261 described below in an upward or downward direction in a vertical direction. In the embodiment of the present invention, the shape and the overall configuration of the cross slide table 322 are not limited. The cross slide table 322 may be mounted on the first mounting plate 321, the follower mounting bracket 3261 may be mounted on the cross slide table 322, the movement of the adjustment follower mounting bracket 3261 in the left or right direction with respect to the first mounting plate 321 may be achieved by rotating the lateral adjustment handle 3221, and the movement of the adjustment follower mounting bracket 3261 in the upward or downward direction with respect to the first mounting plate 321 may be achieved by rotating the longitudinal adjustment handle 3222.
With continued reference to fig. 1, 2, 3, 4, 5 and 6, the follower 323 is mounted on the cross slide 322. The universal joint 324 is mounted on the first mounting plate 321, and the tie rod of the cylinder 312 and the universal joint 324 are connected to each other. The mounting block 325 is mounted on the first mounting plate 321, the universal joint 324 is mounted on the mounting block 325, and the cylinder 312 and the mounting block 325 are located on the same plane, so that the force of the mounting block 325 on the cylinder 312 through the universal joint 324 and the pull rod of the cylinder 312 are located on the same straight line, and the force generated by the mounting block 325 on the universal joint 324 can be more timely and accurately acted on the pull rod of the cylinder 312. The second mounting plate and the cross slide 322 are connected to each other, the follower 323 and the second mounting plate are connected to each other, and the follower 323 is located between the cross slide 322 and the welding mechanism 2. The second mounting plate may include a follower mounting bracket 3261 and a follower mounting plate 3262, the follower mounting bracket 3261 and the cross slide 322 being interconnected, the brackets in the follower mounting plate 3262 and the follower 323 being interconnected by the screw 6. The follower 323 includes a bracket mounted to the second mounting plate and a tracking wheel rotatably mounted to the bracket, such as the tracking wheel is coupled to the bracket via a shaft, and the tracking wheel is rotatable relative to the shaft. The weld joint tracking welding system provided by the embodiment of the invention can further comprise a track, wherein the track is arranged on the supporting seat 1, and the follow-up mechanism is arranged on the track, so that the follow-up mechanism can move along the track. If the track may include a guide rail 41 and a slider 42, the slider 42 and the guide rail 41 are matched with each other, and the slider 42 may slide on the guide rail 41 by mounting the guide rail 41 on the support base 1, so that the carriage 33 mounted on the slider 42 can move with respect to the support base 1.
Specifically, the adjusting mechanism includes a balance valve 311, a cylinder 312, and a gas path joint 313, the cylinder 312 is fixed to the support base 1, a rod of the cylinder 312 and a universal joint 324 are connected to each other, the universal joint 324 and a mounting block 325 are connected, and when gas is inputted or outputted to the inside of the cylinder 312 through an external gas box, pressure generated in the inside of the cylinder 312 can act on a follower 323 through the rod of the cylinder 312, the universal joint 324, and the carriage 33. The balance valve 311 is fixed on the support base 1, the balance valve 311 is communicated with the cylinder 312 through the air passage joint 313, the air passage joint 313 is arranged on the cylinder 312, and the air passage joint 313 and the balance valve 311 are communicated with each other. Since the internal pressure of the cylinder 312 can be maintained in a constant state at the balance valve 311, that is, the internal pressure of the cylinder 312 is at a certain constant value (or within a preset fixed value range). The pull rod of the air cylinder 312 is extended or retracted, so that the welding head can be driven to adjust the welding position, and the welding spot is always positioned on the welding seam. If the welding surface of the welding seam of the welding workpiece is uneven, the balance valve 311 can enable the internal pressure of the air cylinder 312 to be in a constant state all the time, so that the pull rod of the air cylinder 312 is forced to extend or retract, the adjustment of the welding position of the welding head is driven, and the welding head moves along the position of the welding seam.
It should be noted that the follower mechanism includes a first mounting plate 321, a cross sliding table 322, a follower 323, a universal joint 324, a mounting block 325 and a second mounting plate, and the welding head and the mounting bracket of the cross sliding table 322 are both fixed on the slide carriage 33, i.e. the slide carriage 33 can drive the welding head and the cross sliding table 322 to move together. The guide rail 41 is fixed on the supporting seat 1, the baffle 5 is fixed on the supporting seat 1, one surface of the slide carriage 33 is connected with the sliding block 42 and then is installed above the guide rail 41, the other surface of the slide carriage 33 is connected with the installation block 325, the installation block 325 is connected with the pull rod of the air cylinder 312 through the universal joint 324, and after the pull rod of the air cylinder 312 is connected with the universal joint 324, the slide carriage 33 can be driven to slide by pushing the universal joint 324. The follower 323 is mounted on a follower mounting plate 3262 and the pressure of the cylinder 312 causes the follower 323 to compress the outer surface of the weld workpiece. When the tracking wheel in the follower 323 rolls along the outer surface of the welding seam of the workpiece, the pressure exerted by the tracking wheel is fed back to the inside of the cylinder 312 through the pull rod of the cylinder 312, and the pressure in the cylinder 312 is ensured to be unchanged, and the pressure variation exerted by the tracking wheel can be balanced through the fact that the pull rod of the cylinder 312 extends out a little bit or retracts a little bit, so that the welding head can be adjusted to the welding position along with the movement of the pull rod.
Meanwhile, one surface of the cross sliding table 322 is fixed on a mounting bracket of the cross sliding table 322, the other surface of the cross sliding table 322 is fixed on a follower mounting bracket 3261 through a screw 6, and a follower mounting plate 3262 is fixed on the follower 323 bracket. Since the follower mounting bracket 3261 is fixed on the follower mounting plate 3262 by the screw 6, the follower mounting bracket 3261 and the cross sliding table 322 are connected to each other, the follower 323 can be moved in a leftward or rightward direction in a horizontal plane by rotating the transverse adjustment handle 3221 of the cross sliding table 322, that is, the size of a gap between the follower 323 and a welding head in the welding mechanism 2 can be adjusted by rotating the transverse adjustment handle 3221 of the cross sliding table 322, so that the follower 323 is close to the welding head, or the follower 323 is far from the welding head. The movement of the follower 323 in an upward or downward direction in a vertical direction with respect to the horizontal plane is achieved by rotating the longitudinal adjustment handle 3222 of the cross slide table 322, i.e. by rotating the longitudinal adjustment handle 3222 of the cross slide table 322, the relative position between the follower 323 and the welding head in the welding mechanism 2 in the vertical direction can be adjusted such that the position of the follower 323 is higher than the position of the welding head or such that the position of the follower 323 is lower than the position of the welding head. Thus, the relative positions of the follower 323 and the welding head are adjusted through the cross sliding table 322, so that the follower 323 and the welding head can be suitable for welding workpieces with different sizes, and the adaptability is improved.
During actual operation, the support base 1 is in a fixed position in space and the workpiece can be moved relative to the welding head. Taking the example that the weld joint on the welding surface in the workpiece is circular, the welding head and the tracking wheel in the follower 323 are in point contact with the welding surface of the workpiece, and when the tracking wheel in the follower 323 encounters the uneven welding surface, the force acting on the tracking wheel by the uneven welding surface causes the universal joint 324 to push the pull rod of the air cylinder 312 to move towards or away from the interior of the air cylinder 312, and also causes the first mounting plate 321 to move along the directions of the two ends of the guide rail 41 mounted on the support base 1. Since the tracking wheel in the follower 323 and the weld joint of the welding surface of the workpiece to be welded are abutted against each other, the tracking wheel and the welding head in the follower 323 assume a tandem position with respect to the weld joint. If the welding surface is in an uneven shape, during welding, when the tracking wheel in the follower 323 and the bulge in the welding surface are in contact with each other, the bulge can jack the tracking wheel in the follower 323, at the moment, the force of the tracking wheel in the follower 323 on the universal joint 324 can push the pull rod of the cylinder 312 to move towards the direction close to the inner part of the cylinder 312, the balance valve 311 can keep the pressure in the inner part of the cylinder 312 in a constant state, the balance valve 311 can input gas into the cylinder 312 to force the pull rod to move towards the direction far away from the inner part of the cylinder 312, and the pressure generated in the cylinder 312 is fed back to the tracking wheel in the follower 323 through the pull rod of the cylinder 312 to adjust the position of the tracking wheel, so that the position deviation between the welding head and the welding seam caused by the jack of the tracking wheel in the follower 323 by the bulge is avoided. Or, when the tracking wheel in the follower 323 and the recess in the welding surface contact each other, the tracking wheel in the follower 323 is sunk into the recess, at this time, the force of the tracking wheel in the follower 323 acting on the universal joint 324 pulls the pull rod of the cylinder 312 to move away from the interior of the cylinder 312, and the balance valve 311 can keep the pressure inside the cylinder 312 to be in a constant state, so that the balance valve 311 can exhaust gas from the cylinder 312 to force the pull rod of the cylinder 312 to move towards the interior of the cylinder 312, the pressure generated inside the cylinder 312 is fed back to the tracking wheel in the follower 323 through the pull rod of the cylinder 312, and the position of the tracking wheel is adjusted, so that the position offset between the welding head and the welding seam caused by the fact that the tracking wheel in the follower 323 is slid into the recess is avoided. Through the mode, the fact that the welding head can move along with the circular welding line when the uneven welding surface is encountered is achieved, and the welding point is always located on the circular welding line.
In order to limit the sliding range of the slider 42, the seam tracking welding system according to the embodiment of the present invention further includes a baffle 5, where the baffle 5 is mounted on the support base 1, and the baffle 5 is configured to limit the moving range of the follower mechanism relative to the track, that is, the moving range of the follower mechanism in the direction toward the track.
Specifically, the balance valve 311, the cylinder 312, the guide rail 41, and the baffle 5 are fixed to the support base 1 by screws 6, the air passage joint 313 is attached to the cylinder 312, one surface of the carriage 33 and the slider 42 are connected together, and the slider 42 is attached to the guide rail 41. One side of the carriage 33 is coupled to a mounting block 325. The mounting block 325 is coupled to the cylinder 312 via a universal joint 324. When the cylinder 312 drives the slide carriage 33 to slide, the universal joint 324 can avoid that the slide carriage 33 cannot slide due to the fact that the pull rod of the cylinder 312 and the slide carriage 33 are not completely clamped on the same straight line. The cross sliding table 322 installing support is fixed on the slide carriage 33 through the screw 6 and the pin 7, and the cross sliding table 322 can be fixed on the installing support of the cross sliding table 322 through the screw 6. In the mounting, the follower mounting bracket 3261 may be fixed to the cross slide 322 by the screw 6, the follower 323 may be mounted on the follower mounting plate 3262, and the follower mounting plate 3262 may be fixed to the follower mounting bracket 3261 by the screw 6. Finally, the welding head is mounted on the slide carriage 33 by means of screws 6. When the slider 42 mounted on the carriage 33 slides back and forth in the direction of the both ends of the guide rail 41, the carriage 33 can also drive the follower 323 to slide back and forth in the direction of the both ends of the guide rail 41. Meanwhile, the baffle 5 is installed at one end of the guide rail 41 far away from the air cylinder 312, and when the slide block 42 moves to one end of the guide rail 41 far away from the air cylinder 312, the baffle 5 can resist the slide block 42, so that the slide block 42 is prevented from sliding out of the guide rail 41, the sliding range of the slide block 42 is limited, and the safety is improved.
The invention provides a weld joint tracking welding system, wherein a tracking device is arranged on a supporting seat 1, a follow-up mechanism in the tracking device is arranged on a welding mechanism 2, and the welding mechanism 2 is used for welding a weld joint of a workpiece. The follow-up part of the follow-up mechanism in the tracking device moves along the welding line along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding line, the feedback part receives the pressure change between the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change. In the process that the welding mechanism 2 welds irregular welding seams, the adjusting mechanism and the follow-up mechanism in the tracking device are mutually matched, if the welding surface is uneven, the follow-up part moves along the welding seam along with the welding mechanism 2 and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change, the welding mechanism 2 can move along with the welding seam, and at the moment, the welding mechanism 2 can always be kept at the position aligned with the welding seam, so that the deviation of the welding position is reduced. Then in the welding process of the welding seam, if the welding surface is uneven, the welding mechanism 2 can automatically move along with the position of the welding seam and always keep at the position aligned with the welding seam, thereby improving the efficiency and reducing the cost. Thereby achieving the technical effects of improving the efficiency and reducing the cost.
In order to describe the weld seam tracking welding method provided by the invention in detail, the embodiment describes the one-to-one weld seam tracking welding device in detail, and based on the same inventive concept, the application also provides the weld seam tracking welding method, and the detail is shown in the second embodiment.
Example two
Referring to fig. 7, fig. 7 is a flowchart of a method for tracking a weld according to an embodiment of the present invention. The second embodiment of the invention provides a seam tracking welding method, which comprises the following steps of S100, supporting a tracking device through a supporting seat 1;
step 200, the follow-up part moves along the welding seam along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding seam, the feedback part receives the pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change.
The invention provides a weld joint tracking welding method, which is characterized in that a tracking device is arranged on a supporting seat 1, and the supporting seat 1 provides support for the tracking device. The servo component moves along the welding seam along with the welding mechanism and is attached to the surface of the workpiece corresponding to the welding seam, and the feedback component receives the pressure change of the servo component and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change. In the process that the welding mechanism 2 welds irregular welding seams, the adjusting mechanism and the follow-up mechanism in the tracking device are mutually matched, if the welding surface is uneven, the follow-up part moves along the welding seam along with the welding mechanism 2 and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change of the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, the adjusting mechanism adjusts the welding position of the welding mechanism 2 according to the pressure change, the welding mechanism 2 can move along with the welding seam, and at the moment, the welding mechanism 2 can always be kept at the position aligned with the welding seam, so that the deviation of the welding position is reduced. Then in the welding process of the welding seam, if the welding surface is uneven, the welding mechanism 2 can automatically move along with the position of the welding seam and always keep at the position aligned with the welding seam, thereby improving the efficiency and reducing the cost. Thereby achieving the technical effects of improving the efficiency and reducing the cost.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (6)
1. A seam tracking welding system, the system comprising:
a support base;
the welding mechanism is used for welding a welding seam of the workpiece;
the tracking device is arranged on the supporting seat and comprises an adjusting mechanism and a follow-up mechanism, the follow-up mechanism is arranged on the welding mechanism and comprises a follow-up part and a feedback part, the follow-up part moves along the welding mechanism along the welding seam and is attached to the surface of a workpiece corresponding to the welding seam, the feedback part receives pressure change between the follow-up part and the surface of the workpiece and feeds back the pressure change to the adjusting mechanism, and the adjusting mechanism adjusts the welding position of the welding mechanism according to the pressure change; and
the track is arranged on the supporting seat, the adjusting mechanism is arranged on the supporting seat, the follow-up part is arranged on the welding mechanism, and the welding mechanism and the feedback part are arranged on the track and can move along the track;
the adjustment mechanism includes:
the balance valve is arranged on the supporting seat;
the cylinder is arranged on the supporting seat, a push rod of the cylinder is connected with the feedback component, and the feedback component is connected with the welding mechanism;
the air passage connector is communicated with the cylinder body of the air cylinder through the balance valve;
the feedback component includes: the first mounting plate is in sliding connection with the supporting seat along the width direction of the welding line, the welding mechanism is mounted on the first mounting plate, and the adjusting mechanism controls the sliding direction of the first mounting plate;
the follower component includes a follower mounted to the first mounting plate.
2. The seam tracking welding system of claim 1, wherein the system further comprises:
and a baffle plate mounted to the support base, the baffle plate configured to limit a range of movement of the follower mechanism relative to the track.
3. The seam tracking welding system of claim 1, wherein:
the feedback component includes: the servo device is arranged on the cross sliding table, and the cross sliding table is connected with the first mounting plate.
4. The seam tracking welding system of claim 3, wherein the follower mechanism further comprises:
the second mounting plate is connected with the cross sliding table, the follower is connected with the second mounting plate, and the follower is located between the cross sliding table and the welding mechanism.
5. The seam tracking welding system of claim 1, wherein the follower mechanism further comprises:
and the universal joint is arranged on the feedback component, and the adjusting mechanism is connected with the universal joint.
6. The seam tracking welding system of claim 5, wherein the follower mechanism further comprises:
the installation piece, the installation piece install in feedback part, universal joint install in the installation piece, adjustment mechanism with the installation piece is located the coplanar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110565676.5A CN113305421B (en) | 2021-05-24 | 2021-05-24 | Weld joint tracking welding system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110565676.5A CN113305421B (en) | 2021-05-24 | 2021-05-24 | Weld joint tracking welding system and method |
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| CN113305421A CN113305421A (en) | 2021-08-27 |
| CN113305421B true CN113305421B (en) | 2023-06-23 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102114565A (en) * | 2009-12-30 | 2011-07-06 | 哈尔滨华崴焊切股份有限公司 | Pneumatic floating contact type welding automatic tracking device |
| CN102248258A (en) * | 2010-05-21 | 2011-11-23 | 北京石油化工学院 | Guide rail-free automatic tracking flexible crawling trolley applied to underwater local dry welding |
| PL67755Y1 (en) * | 2012-12-24 | 2015-04-30 | Przedsiębiorstwo Hak Spółka Z Ograniczoną Odpowiedzialnością | Device for tacking steel plates of box-structure bars before welding |
| CN104493335B (en) * | 2014-12-17 | 2016-12-07 | 济南华信自动化工程有限公司 | Weld tracker |
| CN111112902A (en) * | 2019-12-30 | 2020-05-08 | 安徽省绩溪家德钢结构有限责任公司 | Steel pipe pole inside and outside seam tracking swing welding mechanism |
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