CN114346581A - Pipe body automatic centering device and pipe body butt welding system - Google Patents
Pipe body automatic centering device and pipe body butt welding system Download PDFInfo
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- CN114346581A CN114346581A CN202111666801.8A CN202111666801A CN114346581A CN 114346581 A CN114346581 A CN 114346581A CN 202111666801 A CN202111666801 A CN 202111666801A CN 114346581 A CN114346581 A CN 114346581A
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Abstract
The invention provides an automatic pipe body centering device and a butt welding system for pipe bodies, wherein the automatic pipe body centering device comprises a first transfer mechanism, a correcting mechanism, a centering clamping mechanism and a second transfer mechanism; the centering clamping mechanism is provided with a clamping end; the correcting central line of the correcting mechanism is superposed with the central line of the clamping port of the clamping end; the first transfer mechanism is used for driving one end of the first pipe body to extend into the clamping opening from the first side of the centering clamping mechanism; the second transfer mechanism is used for driving one end of a second pipe body to extend into the clamping opening from the second side of the centering clamping mechanism; the correcting mechanism is used for correcting and fixing the first pipe body; the clamping end of the centering clamping mechanism is used for clamping the opposite end parts of the first pipe body and the second pipe body so as to drive the second pipe body to be centered with the first pipe body. The invention can efficiently realize the automatic centering of the two pipe bodies, ensures the centering precision and is convenient for carrying out butt welding operation on the two pipe bodies after the centering.
Description
Technical Field
The invention relates to the technical field of pipe body welding, in particular to an automatic pipe body centering device and a butt welding system of a pipe body.
Background
With the great increase of the steel consumption in the manufacturing industry, the steel pipe consumption in the industries such as building, petrochemical industry, engineering machinery and the like is increased sharply, the sequential switching of a plurality of steel pipes in a butt welding mode is involved in more application scenes, and the welding quality of the steel pipes directly depends on the centering precision of the opposite end parts of the two steel pipes.
Currently, when two steel pipes are centered, manual centering operation is generally adopted. The manual centering of the steel pipe is high in labor cost and low in efficiency, centering precision is difficult to ensure, and welding precision of butt welding cannot be guaranteed directly. Therefore, it is necessary to provide a device capable of automatically centering a steel pipe and ensuring centering accuracy.
Disclosure of Invention
The invention provides an automatic pipe body centering device and a butt welding system for pipe bodies, which are used for solving or improving the problems that the efficiency of the current manual centering mode for the pipe bodies is low and the centering precision is difficult to ensure.
The invention provides a pipe body automatic centering device, comprising: the device comprises a first transfer mechanism, a correction mechanism, a centering clamping mechanism and a second transfer mechanism; the centering clamping mechanism is provided with a clamping end, and a clamping opening is formed between opposite clamping surfaces of the clamping end; the correcting central line of the correcting mechanism is superposed with the central line of the clamping opening; the first transfer mechanism is used for transferring a first pipe body so as to drive one end of the first pipe body to extend into the clamping opening from the first side of the centering clamping mechanism; the second transfer mechanism is used for transferring a second pipe body so as to drive one end of the second pipe body to extend into the clamping opening from the second side of the centering clamping mechanism; the correcting mechanism is used for correcting and fixing the first pipe body; the clamping end of the centering clamping mechanism is used for clamping the opposite end parts of the first pipe body and the second pipe body so as to drive the second pipe body to be centered with the first pipe body.
According to the automatic pipe centering device provided by the invention, the centering clamping mechanism comprises: the first clamping unit and the second clamping unit; the first clamping unit and the second clamping unit are respectively arranged on the opposite sides of the first pipe body and the second pipe body to be centered; the first clamping unit and the second clamping unit both comprise: the telescopic driving mechanism and the clamping head; the telescopic end of the telescopic driving mechanism is connected with the clamping head; the clamping head of the first clamping unit and the clamping head of the second clamping unit form the clamping end, and the clamping end is used for clamping the outer side wall of the opposite end part of the first pipe body and the outer side wall of the opposite end part of the second pipe body.
According to the automatic pipe body centering device provided by the invention, one side surface of the clamping head departing from the telescopic driving mechanism is formed into the clamping surface; the clamping surface includes: a first inclined plane and a second inclined plane; the first inclined plane and the second inclined plane are symmetrically arranged relative to a horizontal plane passing through a center line of the clamping opening; the first inclined plane and the second inclined plane are respectively used for being attached to the outer side wall of the end part, opposite to the first pipe body and the second pipe body, of the first pipe body and the second pipe body.
According to the automatic pipe body centering device provided by the invention, at least one of the first clamping unit and the second clamping unit can move along the central line of the clamping opening; and/or, the automatic centering device of body still includes: a gear stop mechanism; the stopping mechanism is arranged between the first clamping unit and the second clamping unit; the stopping mechanism comprises a first lifting mechanism and a stopping piece; the first lifting mechanism is connected with the stop piece, and the stop piece is used for stopping the end face of one end of the first pipe body.
According to the automatic pipe centering device provided by the invention, the correcting mechanism comprises: a base and a chuck; the correcting mechanism is arranged on the first side of the centering clamping mechanism; the chuck is arranged on the base; the axis where the center hole of the chuck is located is the correction center line; the first transfer mechanism is used for driving one end of the first pipe body to penetrate through the central hole of the chuck and extend into the clamping opening.
According to the automatic pipe centering device provided by the invention, the correcting mechanism comprises: a first rotary drive mechanism; the first rotary driving mechanism is fixedly arranged on the base, and the chuck is rotatably arranged on the base; the first rotary driving mechanism is connected with the chuck to drive the chuck to rotate relative to the base.
According to the automatic pipe centering device provided by the invention, the first transfer mechanism comprises: the device comprises a fixed frame, a first conveying assembly and a first lifting assembly; the first conveying assembly and the first lifting assembly are respectively arranged on the fixed frame; the first conveying assembly is used for conveying the first pipe body along the axial direction of the first pipe body; the first lifting assembly is used for lifting the first pipe body along the vertical direction.
According to the automatic pipe body centering device provided by the invention, the first conveying assembly comprises: a plurality of transmission rollers and a second rotary driving mechanism; the plurality of transmission rollers are sequentially arranged along the axial direction of the first pipe body, and at least one of the plurality of transmission rollers is connected with the second rotary driving mechanism; the first lift assembly comprises: a plurality of lift units; the plurality of lifting units are sequentially arranged along the axial direction of the first pipe body; the lifting unit includes: the riding wheel and the second lifting mechanism; the riding wheel is connected with the second lifting mechanism; at least one riding wheel of the plurality of lifting units is connected with a third rotary driving mechanism.
According to the automatic pipe centering device provided by the invention, the second transfer mechanism comprises: the device comprises a guide rail, a mobile platform, a second conveying assembly and a second lifting assembly; the moving platform is movably arranged on the guide rail, and the guide rail extends along the direction of the central line of the clamping opening; the second conveying assembly and the second lifting assembly are respectively arranged on the mobile platform; the second conveying assembly is used for conveying the second pipe body along the axial direction of the second pipe body; the second lifting assembly is used for lifting the second pipe body along the vertical direction.
The invention also provides a pipe body butt welding system, which comprises: welding equipment and the automatic pipe body centering device as described in any one of the above items; the welding equipment is used for welding a welding seam between the first pipe body and the second pipe body after centering is completed.
When the pipe body is centered, the first transfer mechanism, the correcting mechanism, the centering clamping mechanism and the second transfer mechanism are arranged, the first transfer mechanism and the second transfer mechanism transfer the first pipe body and the second pipe body in a one-to-one correspondence mode to control the opposite end parts of the first pipe body and the second pipe body to reach the clamping opening of the centering clamping mechanism, after the first pipe body is corrected and fixed through the correcting mechanism, the first pipe body can be used as a centering reference pipe, and the clamping end of the centering clamping mechanism simultaneously applies clamping force to the opposite end parts of the first pipe body and the second pipe body to drive the second pipe body to automatically achieve centering of the first pipe body.
Therefore, the automatic centering device can efficiently realize the automatic centering of the two pipe bodies, ensures the centering precision and is convenient for carrying out butt welding operation on the two centered pipe bodies.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a pipe butt welding system provided by the present invention;
FIG. 2 is a schematic structural view of a centering and clamping mechanism provided by the present invention;
FIG. 3 is a second schematic structural view of the centering and clamping mechanism provided in the present invention;
FIG. 4 is a schematic structural diagram of a calibration mechanism provided in the present invention;
FIG. 5 is a second schematic structural diagram of the calibration mechanism provided in the present invention;
fig. 6 is a schematic structural view of a first transfer mechanism provided in the present invention;
fig. 7 is a schematic structural view of a second transfer mechanism provided in the present invention;
reference numerals: 100: a first pipe body; 200: a second tube body; 1: a first transfer mechanism; 2: a correction mechanism; 3: a centering and clamping mechanism; 4: a second transfer mechanism; 5: a gear stop mechanism; 6: welding equipment; 11: a fixed mount; 12: a first conveying assembly; 13: a first lifting assembly; 21: a base; 22: a chuck; 23: a first rotary drive mechanism; 31: a first clamping unit; 32: a second clamping unit; 33: a machine base; 34: a rack and pinion drive mechanism; 311: a telescopic driving mechanism; 312: a clamping head; 3120: a clamping surface; 41: a guide rail; 42: a mobile platform; 43: a second transport assembly; 44: a second lifting assembly; 51: a first lifting mechanism; 52: a stop member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An automatic pipe centering device and a butt welding system of the present invention will be described with reference to fig. 1 to 7.
As shown in fig. 1, the present embodiment provides an automatic pipe centering device, which includes: a first transfer mechanism 1, a correction mechanism 2, a centering clamping mechanism 3 and a second transfer mechanism 4; the centering clamping mechanism 3 is provided with a clamping end, and a clamping opening is formed between opposite clamping surfaces 3120 of the clamping end; the correcting central line of the correcting mechanism 2 is superposed with the central line of the clamping opening; the first transfer mechanism 1 is used for transferring the first pipe 100 so as to drive one end of the first pipe 100 to extend from the first side of the centering and clamping mechanism 3 to the clamping opening; the second transfer mechanism 4 is used for transferring the second pipe 200 so as to drive one end of the second pipe 200 to extend into the clamping opening from the second side of the centering clamping mechanism 3; the correcting mechanism 2 is used for correcting and fixing the first pipe 100; the clamping end of the centering clamping mechanism 3 is used for clamping the opposite ends of the first pipe 100 and the second pipe 200 so as to drive the second pipe 200 to be centered with the first pipe 100.
Specifically, in this embodiment, when performing tube centering, by providing the first transfer mechanism 1, the calibration mechanism 2, the centering clamping mechanism 3, and the second transfer mechanism 4, the first transfer mechanism 1 and the second transfer mechanism 4 transfer the first tube 100 and the second tube 200 one-to-one, so as to control the opposite ends of the first tube 100 and the second tube 200 to reach the clamping opening of the centering clamping mechanism 3, after the first tube 100 is calibrated and fixed by the calibration mechanism 2, the first tube 100 can be used as a centering reference tube, and the clamping end of the centering clamping mechanism 3 simultaneously applies a clamping force to the opposite ends of the first tube 100 and the second tube 200, so as to drive the second tube 200 and the first tube 100 to automatically achieve centering.
By last, the automatic centering device of body that this embodiment is shown can realize the automatic centering to two bodys high-efficiently, has ensured the centering precision, is convenient for carry out the butt welding operation to two bodys of accomplishing the centering.
It should be noted here that the automatic pipe body centering device shown in the present embodiment can be considered to be provided with control equipment, for example: the control apparatus includes: the control module and the human-computer interaction module.
Here, the human-machine interaction module shown in this embodiment is in communication connection with the control module, and the control module is in communication connection with the first transfer mechanism 1, the calibration mechanism 2, the centering and clamping mechanism 3, and the second transfer mechanism 4, respectively. The human-computer interaction module is used for receiving input parameters and control instructions, wherein the input parameters comprise the outer diameters of the first pipe body 100 and the second pipe body 200, the position information of the correction center line and the like. After the operator configures the input parameters to the human-computer interaction module, a control instruction for performing the centering operation can be input to the human-computer interaction module, and the control module can respectively perform action control on the first transfer mechanism 1, the correcting mechanism 2, the centering clamping mechanism 3 and the second transfer mechanism 4 according to the control instruction.
The control module shown in this embodiment can specifically control the clamping action of the centering and clamping mechanism 3 according to the outer diameters of the first pipe 100 and the second pipe 200, so as to ensure that the clamping end of the centering and clamping mechanism 3 applies a proper centering and pressing force to the two pipes, thereby preventing the two pipes from being deformed due to an excessively large clamping force.
Under the condition that the lengths of the first tube 100 and the second tube 200 are relatively short and the diameters of the first tube 100 and the second tube 200 are relatively large, two clamping surfaces corresponding to the clamping ends of the centering clamping mechanism 3 shown in the embodiment are away from each other, and meanwhile, an acting force deviating from each other is applied to the inner side walls of the opposite end portions of the first tube 100 and the second tube 200, so that clamping force is applied to the opposite end portions of the two tube, and the second tube 200 and the first tube 100 are driven to be centered automatically.
Accordingly, under the condition that the lengths of the first tube 100 and the second tube 200 are relatively long and the diameters of the first tube 100 and the second tube 200 are relatively small, based on the limitation of the centering operation space, the two clamping surfaces corresponding to the clamping ends of the centering clamping mechanism 3 shown in the embodiment are close to each other, and meanwhile, opposite acting forces are applied to the outer side walls of the opposite ends of the first tube 100 and the second tube 200, so as to apply a clamping force to the opposite ends of the two tubes and drive the second tube 200 to automatically center the first tube 100 and the second tube 200.
In some embodiments, the first transfer mechanism 1 and the second transfer mechanism 4 may be transfer mechanisms for transporting or shifting pipes, for example, such transfer mechanisms may include: traveling crane, roller way conveying line, AGV dolly etc. do not do the specific restriction here.
Meanwhile, the aligning mechanism 2 of the present embodiment employs a clamping mechanism having an aligning port, a hydraulic chuck, or a pneumatic chuck, which are well known in the art, to perform the alignment of the first pipe 100 and to fix the first pipe 100. Here, the calibration mechanism 2 shown in the present embodiment calibrates the first pipe 100 to ensure that the central axis of the first pipe 100 coincides with the calibration center line of the calibration mechanism 2.
In addition, based on the industrial application scenario, the first pipe 100 and the second pipe 200 are both generally steel pipes known in the art. Of course, the first tube 100 and the second tube 200 may also be insulating tubes, and are not limited herein. Here, in the present embodiment, when the first tube 100 and the second tube 200 are centered, the outer diameters of the first tube 100 and the second tube 200 are selected to be the same.
In some embodiments, as shown in fig. 2 and 3, the centering and clamping mechanism 3 of the present embodiment includes: a first clamping unit 31 and a second clamping unit 32; the first clamping unit 31 and the second clamping unit 32 are respectively arranged at the opposite sides of the first pipe 100 and the second pipe 200 to be centered; the first and second clamping units 31 and 32 each include: a telescopic driving mechanism 311 and a gripping head 312; the telescopic end of the telescopic driving mechanism 311 is connected with the clamping head 312; the clamping head 312 of the first clamping unit 31 and the clamping head 312 of the second clamping unit 32 form a clamping end, and the clamping end is used for clamping the outer side walls of the opposite end portions of the first pipe body 100 and the second pipe body 200 so as to drive the second pipe body 200 to be aligned with the first pipe body 100.
Specifically, before the first pipe 100 and the second pipe 200 are centered, the telescopic ends of the telescopic driving mechanisms 311 of the first clamping unit 31 and the second clamping unit 32 are both in a retraction state, so that the clamping end of the centering clamping mechanism 3 is ensured to have a relatively large clamping opening, and one end of the first pipe 100 and one end of the second pipe 200 can both conveniently extend into the clamping opening.
When the first tube 100 and the second tube 200 are centered, it is ensured that the correction mechanism 2 has finished correcting and fixing the first tube 100, at this time, by controlling the telescopic ends of the telescopic driving mechanisms 311 of the first clamping unit 31 and the second clamping unit 32 to synchronously extend, the opposite ends of the first tube 100 and the second tube 200 can be gradually approached by the clamping head 312 of the first clamping unit 31 and the clamping head 312 of the second clamping unit 32 simultaneously applying opposite acting forces to the outer side walls of the opposite ends of the first tube 100 and the second tube 200 until the clamping head 312 of the first clamping unit 31 and the clamping head 312 of the second clamping unit 32 clamp the outer side walls of the opposite ends of the first tube 100 and the second tube 200, and the second tube 200 is driven to finish centering the first tube 100 by clamping.
Here, the telescopic driving mechanism 311 shown in this embodiment is preferably a hydraulic cylinder in order to satisfy power requirements when centering pipe bodies of different specifications.
In some embodiments, in order to center the clamping mechanism 3, which can center pipes of different specifications, and ensure the centering accuracy, the present embodiment optimizes the clamping surface 3120 of the clamping head 312. The holding surface 3120 is a side surface of the holding head 312 facing away from the telescopic driving mechanism 311.
Specifically, the holding surface 3120 shown in the present embodiment includes: a first inclined plane and a second inclined plane; the first inclined plane and the second inclined plane are symmetrically arranged relative to a horizontal plane passing through a center line of the clamping opening; the first inclined plane and the second inclined plane are respectively used for being attached to the outer side walls of the opposite end portions of the first pipe body 100 and the second pipe body 200.
In this embodiment, an included angle formed by the first inclined surface and the second inclined surface may be specifically set to be 90 ° to 150 °, for example, the included angle between the first inclined surface and the second inclined surface may be specifically 90 °, 100 °, 120 °, 135 °, 150 °, and the like. When the first inclined plane and the second inclined plane are set to form a relatively small included angle, the centering device is suitable for centering two pipe bodies with relatively small calibers; correspondingly, when the first inclined plane and the second inclined plane are set to be relatively large included angles, the centering requirements of two pipe bodies with relatively large calibers can be met.
In a preferred embodiment, the present embodiment may provide that the shape of the clamping surface 3120 of the clamping head 312 is specifically "V" shaped or isosceles trapezoid.
In some embodiments, after the two pipes are centered, in order to facilitate the tack welding of the seam of the two pipes, at least one of the first clamping unit 31 and the second clamping unit 32 may be configured to move along the center line of the clamping opening.
Here, the centering and clamping mechanism 3 of the present embodiment is further provided with a base 33, the base 33 has a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion are disposed on opposite sides of the first pipe 100 and the second pipe 200 to be centered, the first clamping unit 31 is mounted on the first fixing portion, and the second clamping unit 32 is mounted on the second fixing portion.
As shown in fig. 3, the first clamping unit 31 is fixedly mounted on the first fixing portion, and the second clamping unit 32 is movably mounted on the second fixing portion along the center line of the clamping opening. In this embodiment, a rack and pinion driving mechanism 34 may be disposed between the second clamping unit 32 and the second fixing portion, and the rack and pinion driving mechanism 34 drives the second clamping unit 32 to move relative to the second fixing portion.
In this way, after the first pipe body 100 and the second pipe body 200 are centered, the present embodiment can expose the butt joint of the two pipe bodies by controlling the movement of the first clamping unit 31 and/or the second clamping unit 32, so as to reserve a sufficient welding space and perform a welding operation on the butt joint.
In some embodiments, as shown in fig. 1 and 2, the automatic pipe centering device of this embodiment further includes: a gear stop mechanism 5; the stopping mechanism 5 is arranged between the first clamping unit 31 and the second clamping unit 32; the stop mechanism 5 includes a first lifting mechanism 51 and a stopper 52; the first elevating mechanism 51 is connected to a stopper 52, and the stopper 52 is used to stop an end surface of one end of the first pipe 100.
Specifically, this embodiment can be through setting up the fender mechanism 5 that stops, can stretch into the centre gripping mouth to centering fixture 3 when the one end of first body 100, can be immediately through first elevating system 51 drive stop part 52 and rise, carry on spacingly by stop part 52 to the one end of first body 100, so be convenient for control the relative tip of first body 100 and second body 200 position relative to the centre gripping mouth of centering fixture 3, effectively improve the success rate of carrying out once centering to two bodys.
In some embodiments, as shown in fig. 4 and 5, the calibration mechanism 2 of the present embodiment includes: a base 21 and a chuck 22; the correcting mechanism 2 is arranged on the first side of the centering clamping mechanism 3; the chuck 22 is arranged on the base 21; the axis of the central hole of the chuck 22 is a correction central line; the first transfer mechanism 1 is used to drive one end of the first pipe 100 to pass through the central hole of the chuck 22 and extend into the clamping opening.
Here, this embodiment is rectified and is fixed first body 100 through chuck 22, and not only easy operation is convenient, still can ensure to rectify the precision, is convenient for the quick control first body 100 the axis and the coincidence of the correction central line of aligning gear 2.
Among them, the chuck 22 shown in the present embodiment is preferably a three-jaw chuck.
Further, the correcting mechanism 2 shown in the present embodiment is also provided with a first rotary drive mechanism 23; the first rotary driving mechanism 23 is fixedly arranged on the base 21, and the chuck 22 is rotatably arranged on the base 21; the first rotary drive mechanism 23 is connected to the chuck 22 to drive the chuck 22 to rotate relative to the base 21.
Specifically, in the present embodiment, after the first pipe 100 is calibrated and fixed by the chuck 22, the chuck 22 is driven to rotate by the first rotary driving mechanism 23, so as to satisfy the following two functional requirements.
In one aspect, the chuck 22 drives the first tube 100 to rotate, and the posture of the first tube 100 can be adjusted before centering, so as to ensure that the first tube 100 and the second tube 200 are centered along a specific direction, so that the corresponding structures on the first tube 100 and the second tube 200 correspond to each other.
On the other hand, after the two pipes are subjected to the pre-spot welding, the chuck 22 drives the first pipe 100 to rotate, so that the two pipes can rotate synchronously, and the welding seam of the two pipes can be welded without moving the welding gun head of the welding device 6.
In some embodiments, as shown in fig. 6, in order to facilitate the transportation and calibration of the first pipe 100, the first transferring mechanism 1 of this embodiment includes: the device comprises a fixed frame 11, a first conveying assembly 12 and a first lifting assembly 13; the first conveying assembly 12 and the first lifting assembly 13 are respectively arranged on the fixed frame 11; the first conveying assembly 12 is used for conveying the first tube 100 along the axial direction of the first tube 100; the first lifting assembly 13 is used for lifting the first pipe 100 along the vertical direction.
Specifically, in practical operation, the first pipe 100 can be conveyed by the first conveying assembly 12, one end of the first pipe 100 passes through the central hole of the chuck 22 and extends into the clamping opening, and then the first pipe 100 is lifted to a preset height by the first lifting assembly 13, so as to assist the chuck 22 to correct the first pipe 100.
In a preferred embodiment, in order to ensure the conveying effect on the first tube 100, the first conveying assembly 12 of the present embodiment includes: a plurality of transmission rollers and a second rotary driving mechanism; the plurality of transmission rollers are sequentially arranged along the axial direction of the first pipe 100, and at least one of the plurality of transmission rollers is connected to the second rotary driving mechanism.
Specifically, the second rotary driving mechanism may be connected to one end of the chain transmission mechanism, and the other end of the chain transmission mechanism may be connected to each of the conveying rollers, so that each of the conveying rollers is driven by the second rotary driving mechanism to rotate synchronously. The second rotary driving mechanism shown in this embodiment may be a variable frequency motor.
Meanwhile, the transmission rollers shown in this embodiment are specifically V-shaped rollers, the central axis of each transmission roller is perpendicular to the axial direction of the first pipe body 100, and the central connecting line of each transmission roller is located on the same straight line parallel to the central axis of the first pipe body 100. Thus, the first pipe 100 is conveyed by the plurality of conveying rollers, so that the first pipe 100 can be controlled to be horizontally conveyed along the axial direction thereof.
In a preferred embodiment, the first lift assembly 13 of the present embodiment comprises: a plurality of lift units; the plurality of lifting units are sequentially arranged along the axial direction of the first pipe body 100; the lifting unit comprises: the riding wheel and the second lifting mechanism; the riding wheel is connected with a second lifting mechanism; at least one supporting wheel of the plurality of supporting units is connected with the third rotary driving mechanism.
In this embodiment, only the supporting roller and the second lifting mechanism may be disposed on one portion of the plurality of lifting units, and the supporting roller, the second lifting mechanism and the third rotation driving mechanism may be disposed on another portion of the plurality of lifting units.
When the first pipe 100 is lifted, the present embodiment can simultaneously send a control command to the second lifting mechanism of each lifting unit to control the supporting wheels of each lifting unit to lift at the same speed and finally reach the same lifting height.
Here, if the first pipe 100 needs to be controlled to rotate, the third rotation driving mechanism may drive the corresponding idler to rotate, so as to assist in driving the first pipe 100 to rotate.
In some embodiments, as shown in fig. 7, the second transfer mechanism 4 shown in the present embodiment includes: a guide rail 41, a moving platform 42, a second conveying assembly 43 and a second lifting assembly 44; the moving platform 42 is movably arranged on the guide rail 41, and the guide rail 41 extends along the direction of the central line of the clamping opening; the second conveying assembly 43 and the second lifting assembly 44 are respectively arranged on the moving platform 42; the second conveying assembly 43 is used for conveying the second tube 200 along the axial direction of the second tube 200; the second lifting assembly 44 is used for lifting the second tube 200 in a vertical direction.
Specifically, the second conveying assembly 43 shown in this embodiment may adopt the same structure as the first conveying assembly 12 shown in the above-mentioned embodiment, and the second lifting assembly 44 may also adopt the same structure as the first lifting assembly 13 shown in the above-mentioned embodiment, which is not described again.
In this embodiment, when transferring the second tube 200, the second tube 200 may be placed on the second conveying assembly 43, and then the moving platform 42 is controlled to move toward one side of the centering and clamping mechanism 3; then, under the mutual cooperation of the moving platform 42, the second conveying assembly 43 and the second lifting assembly 44, the second tube 200 is controlled to reach a predetermined height, so as to ensure that one end of the second tube 200 extends into the clamping opening and the opposite end surfaces of the second tube 200 and the first tube 100 are close to each other.
Here, based on the optimized design of the first transfer mechanism 1 and the second transfer mechanism 4 shown in the above embodiment, not only can a gap between the opposing end surfaces of the two pipe bodies to be centered be ensured to meet a high requirement, but also the centering straightness of the two pipe bodies can be ensured.
In some embodiments, as shown in fig. 1, the present embodiments also provide a pipe butt welding system, including: welding equipment 6 and the automatic pipe body centering device in any one of the above modes; the welding apparatus 6 is used to weld a weld between the first pipe body 100 and the second pipe body 200 that are aligned.
Specifically, after centering fixture 3 centers on first body 100 and second body 200, this embodiment can be earlier through welding equipment 6 to the welding seam between first body 100 and the second body 200 carry out prespot welding, and wherein, the point location of prespot welding includes at least two to prevent that first body 100 from breaking away from under the exogenic action with second body 200.
After the pre-spot welding is finished, controlling the clamping end of the centering and clamping mechanism 3 to release the clamping of the opposite ends of the first pipe body 100 and the second pipe body 200; then, with the aid of the first transfer mechanism 1 and the second transfer mechanism 4, the chuck 22 on the calibration mechanism 2 drives the first pipe 100 and the second pipe 200 to rotate; in the process of rotating the first pipe 100 and the second pipe 200, the welding seam between the first pipe 100 and the second pipe 200 is welded by the welding device 6 along the extending direction of the welding seam.
The welding equipment 6 shown in this embodiment can be specifically a laser welding robot, and a welding gun head of the laser welding robot is connected with a multi-axis mechanical arm. The laser welding robot has the functions of arc welding, welding locating and laser tracking.
It should be noted that in the process of controlling the rotation of the first pipe 100 and the second pipe 200, the welding torch head of the present embodiment may be controlled to extend to the weld seam between the first pipe 100 and the second pipe 200, and the welding torch head may be controlled to weld the weld seam in a fixed-focus welding mode or a swing welding mode to ensure the welding quality under the condition of ensuring a certain defocusing amount.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic pipe centering device, comprising:
the device comprises a first transfer mechanism, a correction mechanism, a centering clamping mechanism and a second transfer mechanism;
the centering clamping mechanism is provided with a clamping end, and a clamping opening is formed between opposite clamping surfaces of the clamping end; the correcting central line of the correcting mechanism is superposed with the central line of the clamping opening;
the first transfer mechanism is used for transferring a first pipe body so as to drive one end of the first pipe body to extend into the clamping opening from the first side of the centering clamping mechanism; the second transfer mechanism is used for transferring a second pipe body so as to drive one end of the second pipe body to extend into the clamping opening from the second side of the centering clamping mechanism;
the correcting mechanism is used for correcting and fixing the first pipe body; the clamping end of the centering clamping mechanism is used for clamping the opposite end parts of the first pipe body and the second pipe body so as to drive the second pipe body to be centered with the first pipe body.
2. The automatic pipe body centering device according to claim 1,
centering fixture includes: the first clamping unit and the second clamping unit;
the first clamping unit and the second clamping unit are respectively arranged on the opposite sides of the first pipe body and the second pipe body to be centered;
the first clamping unit and the second clamping unit both comprise: the telescopic driving mechanism and the clamping head; the telescopic end of the telescopic driving mechanism is connected with the clamping head; the clamping head of the first clamping unit and the clamping head of the second clamping unit form the clamping end, and the clamping end is used for clamping the outer side wall of the opposite end part of the first pipe body and the outer side wall of the opposite end part of the second pipe body.
3. The automatic pipe body centering device according to claim 2,
one side surface of the clamping head departing from the telescopic driving mechanism is formed into the clamping surface;
the clamping surface includes: a first inclined plane and a second inclined plane; the first inclined plane and the second inclined plane are symmetrically arranged relative to a horizontal plane passing through a center line of the clamping opening; the first inclined plane and the second inclined plane are respectively used for being attached to the outer side wall of the end part, opposite to the first pipe body and the second pipe body, of the first pipe body and the second pipe body.
4. The automatic pipe body centering device according to claim 2,
at least one of the first clamping unit and the second clamping unit can move along the central line of the clamping opening;
and/or, the automatic centering device of body still includes: a gear stop mechanism; the stopping mechanism is arranged between the first clamping unit and the second clamping unit; the stopping mechanism comprises a first lifting mechanism and a stopping piece; the first lifting mechanism is connected with the stop piece, and the stop piece is used for stopping the end face of one end of the first pipe body.
5. The automatic pipe body centering device according to claim 1,
the correction mechanism includes: a base and a chuck;
the correcting mechanism is arranged on the first side of the centering clamping mechanism; the chuck is arranged on the base; the axis where the center hole of the chuck is located is the correction center line; the first transfer mechanism is used for driving one end of the first pipe body to penetrate through the central hole of the chuck and extend into the clamping opening.
6. The automatic pipe body centering device according to claim 5,
the correction mechanism includes: a first rotary drive mechanism;
the first rotary driving mechanism is fixedly arranged on the base, and the chuck is rotatably arranged on the base; the first rotary driving mechanism is connected with the chuck to drive the chuck to rotate relative to the base.
7. The automatic pipe body centering device according to any one of claims 1 to 6, wherein the first transfer mechanism comprises: the device comprises a fixed frame, a first conveying assembly and a first lifting assembly; the first conveying assembly and the first lifting assembly are respectively arranged on the fixed frame; the first conveying assembly is used for conveying the first pipe body along the axial direction of the first pipe body; the first lifting assembly is used for lifting the first pipe body along the vertical direction.
8. The automatic pipe body centering device according to claim 7,
the first conveyor assembly comprises: a plurality of transmission rollers and a second rotary driving mechanism; the plurality of transmission rollers are sequentially arranged along the axial direction of the first pipe body, and at least one of the plurality of transmission rollers is connected with the second rotary driving mechanism;
the first lift assembly comprises: a plurality of lift units; the plurality of lifting units are sequentially arranged along the axial direction of the first pipe body; the lifting unit includes: the riding wheel and the second lifting mechanism; the riding wheel is connected with the second lifting mechanism; at least one riding wheel of the plurality of lifting units is connected with a third rotary driving mechanism.
9. The automatic pipe body centering device according to any one of claims 1 to 6, wherein the second transfer mechanism comprises: the device comprises a guide rail, a mobile platform, a second conveying assembly and a second lifting assembly;
the moving platform is movably arranged on the guide rail, and the guide rail extends along the direction of the central line of the clamping opening; the second conveying assembly and the second lifting assembly are respectively arranged on the mobile platform;
the second conveying assembly is used for conveying the second pipe body along the axial direction of the second pipe body; the second lifting assembly is used for lifting the second pipe body along the vertical direction.
10. A pipe butt welding system, comprising: welding equipment and a pipe body automatic centering device according to any one of claims 1 to 9;
the welding equipment is used for welding a welding seam between the first pipe body and the second pipe body after centering is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111666801.8A CN114346581A (en) | 2021-12-31 | 2021-12-31 | Pipe body automatic centering device and pipe body butt welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111666801.8A CN114346581A (en) | 2021-12-31 | 2021-12-31 | Pipe body automatic centering device and pipe body butt welding system |
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| Publication Number | Publication Date |
|---|---|
| CN114346581A true CN114346581A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111666801.8A Withdrawn CN114346581A (en) | 2021-12-31 | 2021-12-31 | Pipe body automatic centering device and pipe body butt welding system |
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| Country | Link |
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| CN (1) | CN114346581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114749822A (en) * | 2022-06-13 | 2022-07-15 | 常州市沐泽流体科技有限公司 | Pipeline welding machine of wind power generation system |
| CN117140973A (en) * | 2023-10-24 | 2023-12-01 | 南通沪通塑料制品有限公司 | Plastic tubing processingequipment |
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| JPH06277892A (en) * | 1993-02-25 | 1994-10-04 | Toshiba Eng & Constr Co Ltd | Groove setting device for welding piping |
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Application publication date: 20220415 |