CN212094957U - Automatic welding device for U-shaped rib plates - Google Patents
Automatic welding device for U-shaped rib plates Download PDFInfo
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- CN212094957U CN212094957U CN202020477798.XU CN202020477798U CN212094957U CN 212094957 U CN212094957 U CN 212094957U CN 202020477798 U CN202020477798 U CN 202020477798U CN 212094957 U CN212094957 U CN 212094957U
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Abstract
An automatic welding device for a U-shaped rib plate is used for welding a U-shaped ring and the U-shaped plate; the device comprises a frame, wherein a pair of longitudinal guide rails are arranged on the frame, and a longitudinal traveling vehicle which can translate along the longitudinal direction is arranged on the pair of longitudinal guide rails; the longitudinal traveling crane is provided with a transverse guide rail, a transverse traveling crane which translates along the transverse direction is arranged on the transverse guide rail, and a steering lifting mechanism is connected to the transverse traveling crane; the steering lifting mechanism comprises a rotating shaft which is vertically arranged, the upper end of the rotating shaft is rotatably connected with the transverse traveling crane, and the lower end of the rotating shaft is slidably connected with the welding machine hanger; the welding machine hanger is provided with a horizontal shaft, a welding gun seat is connected onto the horizontal shaft in a sliding manner, and a welding gun holding rod is hinged onto the welding gun seat; the welding gun seat is provided with end face idler wheels which are in end face contact with the U-shaped ring, outer side guide wheels which are in outer side face contact with the U-shaped ring, and inner side guide wheels which are in inner side face contact with the U-shaped ring. The utility model discloses to the adaptability of welding seam deviation strong, solved the difficult problem that welding robot required height to the welding seam uniformity.
Description
Technical Field
The utility model belongs to the technical field of automatic welder and specifically relates to a U type gusset automatic welder is related to.
Background
The U-shaped rib plates are main components in the main girder box of the crane. The U-shaped rib plate is mainly formed by welding a U-shaped plate and a U-shaped ring. The U-shaped rib plates in the girder box are used in large quantities, so that the welding workload of the U-shaped rib plates is very large. Traditional U type gusset is by artifical manual welding, and work efficiency is low and welding quality is unstable.
The U-shaped plate and the U-shaped ring have larger upstream machining size error, and the problem of large welding line position dispersion difference exists in assembly welding. The conventional welding robot requires that the positional deviation of the welding line cannot exceed 3mm, and thus the welding quality cannot be guaranteed even if the welding robot is used. In order to realize the automatic welding of the U-shaped rib plate, a technical solution is needed to improve the working efficiency and save the labor cost.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough in the background art, the utility model discloses a U type gusset automatic welder adopts following technical scheme:
an automatic welding device for a U-shaped rib plate is used for welding a U-shaped ring and the U-shaped plate; the device comprises a frame, wherein a pair of longitudinal guide rails are arranged on the frame, and a longitudinal traveling vehicle which can translate along the longitudinal direction is arranged on the pair of longitudinal guide rails; the longitudinal traveling crane is provided with a transverse guide rail, a transverse traveling crane which translates along the transverse direction is arranged on the transverse guide rail, and a steering lifting mechanism is connected to the transverse traveling crane; the steering lifting mechanism comprises a rotating shaft which is vertically arranged, the upper end of the rotating shaft is rotatably connected with the transverse traveling crane, and the lower end of the rotating shaft is slidably connected with the welding machine hanger; the welding machine hanger is provided with a horizontal shaft, a welding gun seat is connected onto the horizontal shaft in a sliding manner, and a welding gun holding rod is hinged onto the welding gun seat; the welding gun seat is provided with an end surface roller which is contacted with the end surface of the U-shaped ring, an outer side guide wheel which is contacted with the outer side surface of the U-shaped ring, and an inner side guide wheel which is contacted with the inner side surface of the U-shaped ring; the longitudinal traveling vehicle, the transverse traveling vehicle and the steering lifting mechanism are driven by servo motors.
According to the technical scheme, the longitudinal guide rail comprises a pair of I-shaped steel rails which are arranged in parallel, and longitudinal racks are arranged on opposite rail surfaces of the pair of I-shaped steel rails; the longitudinal traveling vehicle comprises a pair of I-shaped steel rails arranged in parallel and a pair of end beams connected to two ends of the pair of I-shaped steel rails; each end beam is provided with a pair of walking gears meshed with the longitudinal racks and a pair of horizontal rollers in rolling contact with the stud surfaces of the I-shaped steel rails; the opposite pair of walking gears is connected with the first servo motor through a transmission shaft and a reduction box.
The technical scheme is further improved, the tracks of the pair of I-shaped steel rails of the longitudinal traveling vehicle, which are opposite, are transverse guide rails, and transverse racks are arranged on the transverse guide rails; the transverse traveling crane comprises a vehicle body box, a pair of driving gears and a pair of driven gears are arranged on the vehicle body box and meshed with the transverse rack, and the pair of driving gears are connected with a second servo motor through a driving shaft and a reduction gearbox.
The technical scheme is further improved, a third servo motor is arranged on the vehicle body box, and the third servo motor is rotatably connected with the upper end of the rotating shaft through a bevel gear transmission pair.
The technical scheme is further improved, and a rack is arranged at the lower end of the rotating shaft; a fourth servo motor is arranged on the welding machine hanger, and a gear is connected to the fourth servo motor; the lower end of the rotating shaft is meshed with the welding machine hanger through a gear rack and is in sliding connection with the welding machine hanger.
Further improve technical scheme, be provided with the switch that advances gradually that is used for controlling terminal surface gyro wheel and U type circle terminal surface contact distance in the below of welding machine gallows.
According to the technical scheme, the horizontal shaft is a spline shaft which is horizontally arranged, the welding gun base is provided with an internal spline corresponding to the spline shaft, and the welding gun base is connected with the horizontal shaft in a sliding mode.
The technical scheme is further improved, and the upper end of the rotating shaft is provided with a wire passing slip ring for preventing the cable from winding.
Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:
the utility model discloses a position is walked in interpolation of horizontal (X axle), vertical (Y axle), vertical axis (Z axle) and rotation axis (fourth axle), realizes welder's programme-controlled walking on U type gusset. And the deviation between the walking position of a transverse axis (X axis), a longitudinal axis (Y axis), a vertical axis (Z axis) and a rotating axis (fourth axis) and the actual welding line is compensated through the profile modeling movement of the end surface idler wheel, the inner side guide wheel and the outer side guide wheel along the shape of the U-shaped ring, so that the walking position track of the welding gun can always conform to the shape of the welding line.
The utility model discloses to the adaptability of welding seam deviation strong, solved the difficult problem that welding robot required height to the welding seam uniformity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the longitudinal traveling vehicle.
Fig. 3 is a schematic structural view of the longitudinal traveling vehicle.
Fig. 4 is a schematic structural view of the traverse car.
Fig. 5-6 are schematic structural views of the steering lifting mechanism.
Fig. 7 is a schematic view of the structure of the rotating shaft.
Fig. 8 is a schematic structural view of the welding gun holder.
Fig. 9 is a schematic view of the working principle of the present invention.
In the figure: 1. a frame; 1.1, longitudinal guide rails; 1.2, longitudinal racks; 2. longitudinally driving the vehicle; 2.2, a traveling gear; 2.3, horizontal rollers; 3. transversely driving the vehicle; 3.1, a vehicle body box; 3.2, a driving gear; 3.3, a driven gear; 4. a steering lifting mechanism; 4.1, a rotating shaft; 5. a welding machine hanger; 5.1, horizontal axis; 6. a welding gun seat; 6.1, end face rollers; 6.2, an outer guide wheel; 6.3, an inner guide wheel; 7. a welding gun holding rod; 8.1, a first servo motor; 8.2, a second servo motor; 8.3, a third servo motor; 8.4, a fourth servo motor; 9. a gradual switch; 10. and the wire-passing slip ring.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
An automatic welding device for a U-shaped rib plate is used for welding a U-shaped ring and the U-shaped plate. As shown in fig. 1-3, the automatic welding device for U-shaped rib plates comprises a square frame 1, a pair of longitudinal guide rails 1.1 are arranged on the frame 1, and a longitudinal traveling vehicle 2 which can translate along the longitudinal direction is arranged on the pair of longitudinal guide rails 1.1. Specifically, the longitudinal guide rail 1.1 comprises a pair of parallel i-shaped steel rails, and longitudinal racks 1.2 are mounted on opposite rail surfaces of the pair of i-shaped steel rails. The longitudinal traveling crane 2 comprises a pair of I-shaped steel rails arranged in parallel and a pair of end beams connected to two ends of the pair of I-shaped steel rails. Each end beam is provided with a pair of walking gears 2.2 meshed with the longitudinal racks 1.2 and a pair of horizontal rollers 2.3 in rolling contact with the stud surfaces of the I-shaped steel rails, and the horizontal rollers 2.3 limit the transverse movement of the longitudinal traveling vehicle 2. Wherein, the opposite pair of walking gears 2.2 is connected with a first servo motor 8.1 through a transmission shaft and a reduction box. When the first servo motor 8.1 rotates, the longitudinal traveling crane 2 is driven to longitudinally translate.
The tracks opposite to the I-shaped steel rails of the longitudinal traveling crane 2 are transverse guide rails, and transverse racks are arranged on the transverse guide rails. As shown in fig. 4, the traversing crane 3 includes a vehicle body box 3.1, a pair of driving gears 3.2 and a pair of driven gears 3.3 engaged with the transverse rack are arranged on the vehicle body box 3.1, and the pair of driving gears 3.2 are connected with a second servo motor 8.2 through a driving shaft and a reduction gearbox. When the second servo motor 8.2 rotates, the transverse traveling crane 3 is driven to transversely translate.
As shown in fig. 4 to 7, a steering elevating mechanism 4 is connected to the traversing vehicle 3. The steering lifting mechanism 4 comprises a rotating shaft 4.1 which is vertically arranged, the upper end of the rotating shaft 4.1 is rotatably connected with the transverse traveling crane 3, and the lower end of the rotating shaft 4.1 is slidably connected with the welding machine hanger 5. Specifically, a third servo motor 8.3 is arranged on the vehicle body box 3.1, and the third servo motor 8.3 is rotatably connected with the upper end of the rotating shaft 4.1 through a bevel gear transmission pair. When the third servo motor 8.3 rotates, the rotating shaft 4.1 is driven to rotate.
In order to prevent the welding machine cable from winding on the rotating shaft 4.1, a wire passing slip ring 10 for preventing the cable from winding is arranged at the upper end of the rotating shaft 4.1. The line-passing slip ring 10 comprises a slip ring connected with the rotating shaft 4.1, a frame clamp is connected on the slip ring in a rolling mode, and a cable is clamped on the frame clamp. When the rotating shaft 4.1 rotates, the cable clamp and the cable do not rotate along with the rotating shaft 4.1.
A rack is arranged at the lower end of the rotating shaft 4.1. A fourth servo motor 8.4 is arranged on the welding machine hanger 5, and a gear is connected to the fourth servo motor 8.4. The welding machine is arranged on the welding machine hanger 5. When the fourth servo motor 8.4 rotates, the welder hanging bracket 5 is driven to move along the axial direction of the rotating shaft 4.1.
The welding machine hanger 5 is provided with a horizontal shaft 5.1, and a welding gun seat 6 is connected on the horizontal shaft 5.1 in a sliding manner. Specifically, the horizontal shaft 5.1 is a spline shaft horizontally arranged, the welding gun base 6 is provided with an internal spline corresponding to the spline shaft, and the welding gun base 6 is in sliding connection with the horizontal shaft 5.1.
In order to realize the welding gun capable of copying and moving according to the shape of the U-shaped ring, as shown in fig. 8, an end surface roller 6.1 which is contacted with the end surface of the U-shaped ring, an outer side guide wheel 6.2 which is contacted with the outer side surface of the U-shaped ring and an inner side guide wheel 6.3 which is contacted with the inner side surface of the U-shaped ring are arranged on the welding gun seat 6. In order to ensure the contact between the end surface roller 6.1 and the end surface of the U-shaped ring, a gradual switch 9 for controlling the contact distance between the end surface roller 6.1 and the end surface of the U-shaped ring is arranged below the welding machine hanger 5.
The welding gun clamping rod 7 is hinged to the welding gun seat 6, and the welding angle of the welding gun can be adjusted by adjusting the hinge angle of the welding gun clamping rod 7 and the welding gun seat 6.
The working principle is as follows:
as shown in fig. 9, the first servo motor 8 drives the longitudinal traveling crane 2 to translate longitudinally, and the second servo motor 8.2 drives the transverse traveling crane 3 to translate transversely, so as to realize interpolation and displacement of the welding gun in the longitudinal direction (Y axis) and the transverse direction (X axis); a fourth servo motor 8.4 drives the welding machine hanger 5 to move along the axial direction of the rotating shaft 4.1, so that the interpolation and displacement of the welding gun on a vertical shaft (Z axis) are realized; the third servo motor 8.3 drives the rotating shaft 4.1 to rotate, so that the welding gun rotates on the rotating shaft (fourth shaft).
When the U-shaped ring works, the outer guide wheel 6.2 is in contact with the outer side surface of the U-shaped ring and the inner guide wheel 6.3 is in contact with the inner side surface of the U-shaped ring through linkage displacement in the longitudinal direction (Y axis) and the transverse direction (X axis). The vertical shaft (Z axis) moves downwards, when the progressive switch 9 is contacted with the end surface of the U-shaped ring, the vertical shaft (Z axis) stops moving, and the end surface roller 6.1 is just contacted with the end surface of the U-shaped ring. And (5) aligning the welding gun with the welding seam by adjusting the welding gun clamping rod 7, and starting welding. The welding of U type gusset straightway can be realized to vertical (Y axle), horizontal (X axle) removal, and the welding of U type gusset circular arc section can be realized to the rotating of rotation axis (fourth axle).
The U-shaped plate and the U-shaped ring have larger upstream machining dimension errors, so that the problem of large welding seam position dispersion exists during assembly welding, but the shape of each U-shaped ring is completely the same as that of the welding seam. Therefore, the welding track of the welding gun can be identical to the shape of the welding seam only by moving the welding gun along the shape of the U-shaped ring. The end face idler wheel 6.1 is clamped on the end face of the U-shaped ring, the inner side guide wheel 6.3 and the outer side guide wheel 6.2 are respectively clamped on the inner side face and the outer side face of the U-shaped ring, and when the interpolation displacement of the longitudinal direction (Y axis), the transverse direction (X axis), the vertical axis (Z axis) and the rotating axis (fourth axis) is deviated from the shape of the U-shaped ring, the deviation can be compensated through the sliding of the welding gun seat 6 on the horizontal axis 5.1. Therefore, the walking track of the welding gun can always conform to the shape of the welding seam.
The part of the utility model not detailed is prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An automatic welding device for a U-shaped rib plate is used for welding a U-shaped ring and the U-shaped plate; the method is characterized in that: the device comprises a frame (1), wherein a pair of longitudinal guide rails (1.1) are arranged on the frame (1), and a longitudinal traveling vehicle (2) which can translate along the longitudinal direction is arranged on the pair of longitudinal guide rails (1.1); the longitudinal traveling crane (2) is provided with a transverse guide rail, a transverse traveling crane (3) which translates along the transverse direction is arranged on the transverse guide rail, and the transverse traveling crane (3) is connected with a steering lifting mechanism (4); the steering lifting mechanism (4) comprises a rotating shaft (4.1) which is vertically arranged, the upper end of the rotating shaft (4.1) is rotatably connected with the transverse traveling crane (3), and the lower end of the rotating shaft (4.1) is slidably connected with the welding machine hanger (5); the welding machine hanger (5) is provided with a horizontal shaft (5.1), a welding gun seat (6) is connected onto the horizontal shaft (5.1) in a sliding manner, and a welding gun holding rod (7) is hinged onto the welding gun seat (6); the welding gun seat (6) is provided with an end surface roller (6.1) contacted with the end surface of the U-shaped ring, an outer side guide wheel (6.2) contacted with the outer side surface of the U-shaped ring and an inner side guide wheel (6.3) contacted with the inner side surface of the U-shaped ring; the longitudinal traveling vehicle (2), the transverse traveling vehicle (3) and the steering lifting mechanism (4) are driven by servo motors.
2. An automatic welding device for U-shaped rib plates according to claim 1, which is characterized in that: the longitudinal guide rail (1.1) comprises a pair of I-shaped steel rails which are arranged in parallel, and longitudinal racks (1.2) are arranged on opposite rail surfaces of the pair of I-shaped steel rails; the longitudinal travelling crane (2) comprises a pair of I-shaped steel rails arranged in parallel and a pair of end beams connected to two ends of the pair of I-shaped steel rails; each end beam is provided with a pair of walking gears (2.2) meshed with the longitudinal racks (1.2) and a pair of horizontal rollers (2.3) in rolling contact with the stud surfaces of the I-shaped steel rails; the opposite pair of walking gears (2.2) is connected with a first servo motor (8.1) through a transmission shaft and a reduction box.
3. An automatic welding device for U-shaped rib plates according to claim 2, which is characterized in that: the tracks of the longitudinal traveling vehicle (2) opposite to the pair of I-shaped steel rails are transverse guide rails, and transverse racks are arranged on the transverse guide rails; the transverse traveling crane (3) comprises a vehicle body box (3.1), a pair of driving gears (3.2) and a pair of driven gears (3.3) which are meshed with the transverse rack are arranged on the vehicle body box (3.1), and the pair of driving gears (3.2) are connected with a second servo motor (8.2) through a driving shaft and a reduction gearbox.
4. An automatic welding device for U-shaped rib plates according to claim 3, which is characterized in that: a third servo motor (8.3) is arranged on the vehicle body box (3.1), and the third servo motor (8.3) is rotationally connected with the upper end of the rotating shaft (4.1) through a bevel gear transmission pair.
5. An automatic welding device for U-shaped rib plates according to claim 1, which is characterized in that: a rack is arranged at the lower end of the rotating shaft (4.1); a fourth servo motor (8.4) is arranged on the welding machine hanger (5), and a gear is connected to the fourth servo motor (8.4); the lower end of the rotating shaft (4.1) is in sliding connection with the welding machine hanger (5) through gear and rack meshing.
6. An automatic welding device for U-shaped rib plates according to claim 1, which is characterized in that: a progressive switch (9) for controlling the contact distance between the end surface roller (6.1) and the end surface of the U-shaped ring is arranged below the welding machine hanger (5).
7. An automatic welding device for U-shaped rib plates according to claim 1, which is characterized in that: the horizontal shaft (5.1) is a spline shaft horizontally arranged, the welding gun seat (6) is provided with an internal spline corresponding to the spline shaft, and the welding gun seat (6) is in sliding connection with the horizontal shaft (5.1).
8. An automatic welding device for U-shaped rib plates according to claim 1, which is characterized in that: the upper end of the rotating shaft (4.1) is provided with a wire passing slip ring (10) for preventing the cable from winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477798.XU CN212094957U (en) | 2020-04-03 | 2020-04-03 | Automatic welding device for U-shaped rib plates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477798.XU CN212094957U (en) | 2020-04-03 | 2020-04-03 | Automatic welding device for U-shaped rib plates |
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| CN212094957U true CN212094957U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020477798.XU Active CN212094957U (en) | 2020-04-03 | 2020-04-03 | Automatic welding device for U-shaped rib plates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115582649A (en) * | 2022-12-12 | 2023-01-10 | 新程汽车工业有限公司 | Support welding equipment for automobile |
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2020
- 2020-04-03 CN CN202020477798.XU patent/CN212094957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115582649A (en) * | 2022-12-12 | 2023-01-10 | 新程汽车工业有限公司 | Support welding equipment for automobile |
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