CN114789312A - Welding device for high-precision pipe fitting machining - Google Patents

Abstract

The invention relates to the technical field related to pipeline welding equipment, and discloses a welding device for high-precision pipe fitting machining, which comprises a rack and pipe fittings, wherein a conical positioning plate for positioning the pipe fittings is arranged on the rack, a push rod is arranged at the top of the rack, an installation frame is fixedly arranged at the bottom end of the push rod, pressurizing springs are fixedly arranged on two sides of the installation frame respectively, pressurizing frames connected with the pressurizing springs are movably arranged on two sides of the installation frame respectively, and driving wheels which are symmetrical through the central axis of the pipe fittings are fixedly arranged on two sides of the bottom of each pressurizing frame respectively. According to the invention, the symmetrical driving wheels are arranged and the conical positioning plates are arranged, so that when the pipe fittings are fixed, the driving wheels extrude the side walls of the pipe fittings and the conical positioning plates limit the positions of the pipe fittings, thereby ensuring stable positioning between the two pipe fittings, enabling the two pipe fittings to be placed in a straight line and finally realizing the purpose of accurate and stable positioning.

Description

Welding device for high-precision pipe fitting machining

Technical Field

The invention relates to the technical field of pipeline welding equipment, in particular to a welding device for high-precision pipe fitting machining.

Background

With the development of national economy of China, the demand of pipelines is continuously increased, and the construction quality requirement is higher and higher, wherein the welding of metal pipelines is an extremely important part in the production and installation of pipelines.

In the process of welding the pipelines, the end parts of the two pipelines are clamped after being aligned through the clamping part, and then the two pipelines are welded, but during actual welding, the welding deviation is overlarge due to direct welding, and the main reason is that the alignment degree of the two pipelines is insufficient during fixing, so that the pipelines are staggered with each other, the whole pipeline is not in a straight line after the pipelines are welded, and the subsequent transportation and use are inconvenient; because need the pipeline to rotate during the pipeline welding to this guarantees the joint gap homoenergetic and welds, and when its welding, can't real-timely know the mouth of pipe condition of aliging, thereby make the position of staggering directly weld, be unfavorable for follow-up discovery unaligned reason in the inspection, make subsequent adjustment relatively troublesome, can't carry out the efficient maintenance.

Disclosure of Invention

Aiming at the defects of the existing pipeline welding and clamping equipment in the background technology in the using process, the invention provides the welding device for high-precision pipe fitting machining, which has the advantages of being accurate, stable and positioned and solves the technical problems in the background technology.

The invention provides the following technical scheme: the utility model provides a welding set is used in processing of high accuracy pipe fitting, includes frame and pipe fitting, be provided with the toper locating plate that advances line location to the pipe fitting in the frame, the top of frame is provided with the push rod, and the bottom fixed mounting of push rod has the mounting bracket, the both sides of mounting bracket fixed mounting respectively has the pressure boost frame of pressure boost spring coupling, and the both sides difference movable mounting of mounting bracket has the drive wheel through pipe fitting axis symmetry, two the drive wheel between the pressure boost frame passes through the transfer line and connects, and the bottom fixed mounting of a pressure boost frame has the driving motor who is connected with the drive wheel, the bottom of mounting bracket is fixed with and is used for carrying out the welded bonding tool, be provided with in the frame and be used for controlling push rod, bonding tool and driving motor driven control box.

Preferably, the inner wall movable mounting of mounting bracket has center block, and the fixed surface of center block installs the balancing pole, the both ends of balancing pole all are located the bottom of mounting bracket, the both ends ball joint of balancing pole has the drive frame, and the bottom bilateral symmetry of drive frame installs the pinch roller, the center block lateral part is equipped with the conducting rod, be equipped with in the mounting bracket with the electrical pillar of conducting rod adaptation, realize conducting rod and electrical pillar connection with the bonding tool start-up.

Preferably, the bottom of drive frame is provided with the detection lead screw, and a pinch roller is installed on the detection lead screw, the lateral wall threaded connection of detection lead screw has the detection wheel, and one side fixed mounting of detection wheel has the recovery spring that is located the detection lead screw outside, the inner wall movable mounting of mounting bracket has the adjusting lever, and the one end fixed mounting of adjusting lever has the extension spring that resets, the one end and the mounting bracket fixed mounting of the above-mentioned extension spring that resets, the inner wall of mounting bracket is provided with the intercommunication switch, and the detection wheel promotes the adjusting lever and impels the intercommunication switch to be pushed down in order to realize that the bonding tool carries out work.

Preferably, the operation box is connected with the welding head in series after passing through the communication switch, the conductive rod and the electric connecting post.

Preferably, the lateral wall fixed mounting of adjusting lever has the locking pole, and mutually perpendicular between the central line of locking pole and the adjusting lever, the center block is established to be cylindrical, the bottom of center block is provided with the circular arc groove, and the bottom of center block be equipped with the spacing groove of locking pole adaptation.

Preferably, one side of the middle part of the detection screw rod is provided with a thread.

The invention has the following beneficial effects:

1. according to the invention, the symmetrical driving wheels are arranged and the conical positioning plates are arranged, so that when the pipe fittings are fixed, the driving wheels extrude the side walls of the pipe fittings and the conical positioning plates limit the positions of the pipe fittings, thereby ensuring stable positioning between the two pipe fittings, enabling the two pipe fittings to be placed in a straight line and finally realizing the purpose of accurate and stable positioning.

2. According to the invention, the driving frame and the center block are arranged, and the pinch roller is arranged below the driving frame, so that the pinch rollers are respectively arranged on the two pipe fittings during welding, when the two pipe fittings rotate, when the ends of the pipe fittings are not parallel and level, the driving frame is inclined, the center block is further deflected, the welding head is enabled not to perform welding work, the non-welded part can be conveniently processed in time during subsequent checking, and finally the purpose of detecting whether the positioning is deviated or not in real time is achieved.

3. According to the invention, the detection wheel is arranged on one side of the driving frame and is arranged on the detection screw rod through the detection wheel, so that when the welding is carried out, the detection wheel and the pressing wheel rotate synchronously through the pipe fittings, the detection wheel can move along the detection screw rod when the detection wheel rotates, if the pipe fittings deviate when rotating, a height difference is generated between the two pipe fittings, the detection screw rod can be suspended, meanwhile, when the detection screw rod is suspended, the detection wheel can be close to the pressing wheel under the action of the recovery spring, the detection wheel can not be close to the adjusting rod, the communication switch can not be switched on by pushing the adjusting rod, the welding head can not be welded, and the purpose of pre-detection positioning can be finally realized.

4. According to the invention, the locking rod for recovering and locking the central block is arranged on the adjusting rod, so that the central block is locked by the locking rod in the downward moving process of the mounting frame, the driving frame is enabled not to deflect, the limiting of downward pressing of the mounting frame is realized by the pressing wheel on the driving frame, the damage of the welding head due to too low falling is prevented while the mounting frame is continuously pressed downward, on the other hand, the welding operation of the welding head can be realized after the adjusting rod is separated from the locking rod by the locking rod, the welding can be carried out only after the pre-positioning is carried out during the welding, the welding can be carried out only after the pipe fittings are leveled, and the purposes of limiting protection and forced regulation of the working sequence are finally realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a tapered positioning plate according to the present invention;

FIG. 3 is a schematic view of a driving wheel according to the present invention;

FIG. 4 is a perspective view of the mounting bracket of the present invention;

FIG. 5 is a schematic overall side view of the present invention;

FIG. 6 is a schematic cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic cross-sectional view taken at B-B of FIG. 5 according to the present invention.

In the figure: 1. a frame; 2. a pipe fitting; 3. a conical positioning plate; 4. a welding head; 5. a transmission rod; 6. a drive wheel; 7. a driving frame; 8. a pressurizing frame; 9. a push rod; 10. a mounting frame; 11. a pressurizing spring; 12. a conductive rod; 13. a drive motor; 14. an operation box; 15. connecting a power post; 16. a center block; 17. a lock lever; 18. a return tension spring; 19. an adjusting lever; 20. a balancing bar; 21. a communication switch; 22. detecting a wheel; 23. a pinch roller; 24. detecting a screw rod; 25. the spring is restored.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-4, a welding device for high-precision pipe processing includes a frame 1 and a pipe 2, a conical positioning plate 3 for positioning the pipe 2 is disposed on the frame 1, and balls are disposed in an inner surface of the conical positioning plate 3, so that the pipe 2 is convenient to rotate and easy to push when the pipe 2 is subsequently pushed out, a push rod 9 for pushing the pipe downward is disposed on a top of the frame 1, an installation frame 10 is fixedly mounted at a bottom end of the push rod 9, pressurizing springs 11 are respectively fixedly mounted on two sides of the installation frame 10, pressurizing frames 8 connected to the pressurizing springs 11 are respectively movably mounted on two sides of the installation frame 10, driving wheels 6 symmetrical to each other through an axis of the pipe 2 are respectively fixedly mounted on two sides of a bottom of each pressurizing frame 8, the driving wheels 6 between the two pressurizing frames 8 are connected through a transmission rod 5, and a driving motor 13 connected to the driving wheels 6 is fixedly mounted on the bottom of one pressurizing frame 8, be fixed with in the bottom of mounting bracket 10 and be used for carrying on welded bonding tool 4 to through be provided with the control box 14 that is used for controlling push rod 9, bonding tool 4 and driving motor 13 driven in frame 1, therefore guarantee at the in-process of work, through the promotion of push rod 9, realize that pressure-increasing frame 8 suppresses drive wheel 6 at the top of pipe fitting 2, and drive wheel 6 through driving motor 13 and rotate, further make its bonding tool 4 weld pipe fitting 2, thereby guarantee that pipe fitting 2 can carry out firm welding.

Referring to fig. 5 and 6, in order to detect whether a deviation occurs between two pipes 2 during welding, a center block 16 is movably mounted on an inner wall of a mounting frame 10, a balance rod 20 is fixedly mounted on a surface of the center block 16, both ends of the balance rod 20 are located at the bottom of the mounting frame 10, driving frames 7 are ball-jointed to both ends of the balance rod 20, press wheels 23 are symmetrically mounted on both sides of a bottom end of the driving frame 7, so that when a height change occurs between the pipes 2 due to contact of the two press wheels 23 on the two pipes 2, the center block 16 is deflected, and in order to transmit a deflection signal, a conductive rod 12 is disposed on a side of the center block 16, and an electric connection post 15 adapted to the conductive rod 12 is disposed in the mounting frame 10, so that the conductive rod 12 is connected to the electric connection post 15 to activate a welding head 4, guarantee at the welded in-process, after through balancing between the drive frame 7, its conducting rod 12 links to each other with the electric post 15 for the electric intercommunication of bonding tool 4, and after the high deviation appears between the pipe fitting 2, can make the drive frame 7 take place the slope, further result in skew between conducting rod 12 and the electric post 15, cause bonding tool 4 not to carry out work, make the welding can not appear in the position of deviation, when guaranteeing follow-up maintenance with this, can audio-visual looking over, guide subsequent repair with this.

Referring to fig. 5-7, in order to perform pre-positioning monitoring on the pipe 2 before welding, so as to ensure the accuracy during welding, a detection screw 24 is disposed at the bottom of the driving frame 7, a pressing wheel 23 is mounted on the detection screw 24, a detection wheel 22 is connected to a side wall of the detection screw 24 through a thread, a restoring spring 25 located outside the detection screw 24 is fixedly mounted at one side of the detection wheel 22, the detection wheel 22 is urged to press the pressing wheel 23 through the restoring spring 25 by elastic pushing, an adjusting rod 19 is movably mounted on an inner wall of the mounting frame 10, a restoring tension spring 18 is fixedly mounted at one end of the adjusting rod 19, one end of the restoring tension spring 18 is fixedly mounted with the mounting frame 10, a communication switch 21 is disposed on the inner wall of the mounting frame 10, and the adjusting rod 19 is urged to press the communication switch 21 through the detection wheel 22, so as to realize the operation of the welding head 4, therefore guarantee at the during operation, because the diameter of detection wheel 22 is the same with pinch roller 23, therefore when rotating through pipe fitting 2, can make the synchronous rotation that rotates of detection wheel 22, and when the difference in height appears between pipe fitting 2, can make the carriage 7 take place to deflect, and then make detection wheel 22 unsettled, and be close to pinch roller 23 when the recovery spring 25 promotes, guarantee with this that detection wheel 22 is owing to can't promote adjusting lever 19 extrusion intercommunication switch 21, and then just also can't make bonding tool 4 work, guaranteed that work must be prepositioned earlier and detected and carrying out the welded purpose.

In order to control the on-off of the welding head 4, the operation box 14 is connected in series with the welding head 4 through the communication switch 21, the conductive rod 12 and the electric connecting column 15, so that when any one of the conductive rod 12 and the electric connecting column 15 or the communication switch 21 is disconnected, the welding head 4 cannot normally work, and the purposes of sequential working procedures and real-time detection and processing are achieved.

Referring to fig. 6 and 7, in order to limit the position of the mounting bracket 10 and to protect the welding head 4 from collision during the downward pressing of the mounting bracket 10, a locking rod 17 is fixedly installed on a side wall of the adjusting rod 19, a center line of the locking rod 17 is perpendicular to the adjusting rod 19, the center block 16 is cylindrical, an arc groove is formed at the bottom of the center block 16, and a limiting groove adapted to the locking rod 17 is formed at the bottom of the center block 16, so that when the mounting bracket 10 is pressed downward, the locking rod 17 is locked in the limiting groove, the pressing wheel 23 is first contacted, the center block 16 is locked, the mounting bracket 10 is moved downward for limiting through the blocking of the pressing wheel 23, and after the pre-positioning detection is finished, the adjusting rod 19 is pushed to drive the locking rod 17 to separate from the limiting groove, so that the limiting of the center block 16 is released, and after follow-up mounting bracket 10 breaks away from, receive adjusting lever 19's restoration, cause locking pole 17 to pass through the circular arc groove direction for the centre block 16 resets, and block locking pole 17 to the spacing groove in.

Referring to fig. 6, in order to prevent the detection wheel 22 from continuously rotating at a fixed position when moving on the detection screw rod 24, a thread is disposed on one side of the middle of the detection screw rod 24 to ensure that one end of the detection screw rod 24 and the installation portion of the pressing wheel 23 are not threaded, so that the detection wheel 22 rotates to the end of the detection screw rod 24, the adjustment rod 19 is pushed onto the connection switch 21, the detection wheel 22 continuously rotates at the end of the detection screw rod 24, and therefore, the phenomenon that the thread on the detection screw rod 24 continuously moves to one side is avoided, and when the detection wheel 22 is about to be separated from the detection screw rod 24, the pipe 2 itself must be rotated more than one turn to ensure that the detection wheel 22 performs the pre-positioning detection on the end surface of the pipe 2.

The working principle of the invention is as follows: during the use, through placing pipe fitting 2 on toper locating plate 3, and move down through 14 control push rods of control box 9, and then promote mounting bracket 10 and press to pipe fitting 2 and move, the top both sides of suppression at pipe fitting 2 can be taken lead to drive wheel 6, and through the continuation of mounting bracket 10 pushing down, can make the pressure increase of drive wheel 6 and pipe fitting 2, pressure boost spring 11 shrink, meanwhile, drive wheel 6 suppresses pipe fitting 2 on toper locating plate 3, therefore realize the location to pipe fitting 2 through toper locating plate 3 and drive wheel 6.

When push rod 9 continuously pushes down, can make mounting bracket 10 progressively move down, laminate respectively on two pipe fittings 2 until two pinch rollers 23, later, 14 control driving motor's of control box rotation 13 make drive wheel 6 drive two pipe fittings 2 and all rotate, when rotating, can make pipe fitting 2 drive pinch roller 23 and rotate in step.

Referring to fig. 6 and 7, when two pipe fittings 2 are relatively flush, when the detection wheel 22 is made to be fitted to the pipe fitting 2, the detection wheel 22 continuously rotates, so that the detection wheel 22 compresses the restoring spring 25, the detection wheel 22 moves leftwards, and finally disengages from the external thread of the detection screw rod 24, and meanwhile, the disengaged detection screw rod 24 simultaneously pushes the adjusting rod 19, and further, the adjusting rod 19 deflects clockwise, so that the restoring tension spring 18 is tightened, and meanwhile, the adjusting rod 19 drives the locking rod 17 to disengage from the limitation on the central block 16, and the deflected adjusting rod 19 touches the communication switch 21, so as to ensure that the subsequent welding head 4 can be started; and if stagger each other between two pipe fittings 2, can make and have the difference in height between two pipe fittings 2, and when left pipe fitting 2 was arranged in the high portion, its detection lead screw 24 on the right can be in the low portion relatively, and detection lead screw 24 at the low portion can be in unsettled state relatively, it promotes detection lead screw 24 and removes to the right side to resume spring 25, cause pipe fitting 2 at continuous pivoted in-process, detection lead screw 24 can't last the motion left, and then just can not promote adjusting lever 19 contact intercommunication switch 21, then bonding tool 4 also can't start, it is obstructed when in prepositioning monitoring promptly, then can't carry out normal weldment work, at this moment, need operating personnel to adjust here, in order to guarantee parallel and level between the pipe fitting 2, with this phenomenon of avoiding unable welding.

When the detection screw rod 24 is arranged at the leftmost side, the adjusting rod 19 is contacted with the communication switch 21, if the two pressing wheels 23 are aligned on the two pipe fittings 2 at the moment, the central block 16 is positioned at a position with balanced two sides, at the moment, the conductive rod 12 is connected with the electric pole 15, and under the dual effects of the connection of the conductive rod 12 and the electric pole 15 and the connection of the communication switch 21, the welding head 4 can perform welding operation, otherwise, when the two pressing wheels 23 are not aligned, the driving frame 7 is inclined, the central block 16 is deflected, the conductive rod 12 is disconnected with the electric pole 15, the welding head 4 can not perform welding operation due to the disconnection of the conductive rod 12 and the electric pole 15, and if the central block 16 is inclined during welding, the welding head 4 at the inclined position can not perform welding operation, so as to ensure that subsequent maintenance, the actual condition of the unwelded part can be obviously seen, and the correction is convenient.

After welding is finished, the push rod 9 is lifted through the operation box 14, the mounting frame 10 moves upwards, the driving wheel 6 on the pressurizing frame 8 can be separated from the pipe fitting 2, the central block 16 is pushed through the locking rod 17 to enable the central block 16 to be in a balance position in the process that the reset tension spring 18 drives the adjusting rod 19 to reset, the detection screw rod 24 is pushed by the recovery spring 25 to be close to the pressing wheel 23, and then when welding is required again, welding can be performed again according to the steps.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (6)

1. The utility model provides a welding set is used in processing of high accuracy pipe fitting, includes frame (1) and pipe fitting (2), its characterized in that: the pipe fitting welding machine is characterized in that a conical positioning plate (3) for positioning a pipe fitting (2) is arranged on the rack (1), a push rod (9) is arranged at the top of the rack (1), a mounting frame (10) is fixedly arranged at the bottom end of the push rod (9), two sides of the mounting frame (10) are respectively and fixedly provided with a pressurizing spring (11), two sides of the mounting frame (10) are respectively and movably provided with a pressurizing frame (8) connected with the pressurizing spring (11), two sides of the bottom of the pressurizing frame (8) are respectively and fixedly provided with driving wheels (6) which are symmetrical through the axis of the pipe fitting (2), the driving wheels (6) between the two pressurizing frames (8) are connected through a transmission rod (5), a driving motor (13) connected with the driving wheels (6) is fixedly arranged at the bottom of one pressurizing frame (8), and a welding head (4) for welding is fixed at the bottom of the mounting frame (10), an operation box (14) used for controlling the driving of the push rod (9), the welding head (4) and the driving motor (13) is arranged on the rack (1).

2. The welding device for high-precision pipe machining according to claim 1, wherein the welding device comprises: the utility model discloses a power connector, including mounting bracket (10), inner wall movable mounting of mounting bracket (10) has center block (16), and the fixed surface of center block (16) installs balancing pole (20), the both ends of balancing pole (20) all are located the bottom of mounting bracket (10), the both ends ball joint of balancing pole (20) has drive frame (7), and the bottom bilateral symmetry of drive frame (7) installs pinch roller (23), center block (16) lateral part is equipped with conducting rod (12), be equipped with in mounting bracket (10) with the power connector (15) of conducting rod (12) adaptation, realize conducting rod (12) and be connected power connector (15) and start welding head (4).

3. The welding device for machining the high-precision pipe fitting according to claim 1, wherein the welding device comprises: the bottom of carriage (7) is provided with detection lead screw (24), and installs on detection lead screw (24) pinch roller (23), the lateral wall threaded connection of detection lead screw (24) has detection wheel (22), and one side fixed mounting who detects wheel (22) has recovery spring (25) that are located detection lead screw (24) outside, the inner wall movable mounting of mounting bracket (10) has adjusting lever (19), and the one end fixed mounting of adjusting lever (19) has extension spring (18) that resets, the one end and mounting bracket (10) fixed mounting of above-mentioned extension spring (18) that resets, the inner wall of mounting bracket (10) is provided with intercommunication switch (21), detects wheel (22) and promotes adjusting lever (19) and impels intercommunication switch (21) to be pushed down in order to realize bonding tool (4) and carry out work.

4. The welding device for high-precision pipe machining according to claim 3, wherein the welding device comprises: the operation box (14) is connected with the welding head (4) in series after being communicated with the switch (21), the conductive rod (12) and the electric connecting column (15).

5. The welding device for machining the high-precision pipe fitting according to claim 3, wherein the welding device comprises: the utility model discloses a lock catch, including center block (16), adjusting lever (19), lateral wall fixed mounting of adjusting lever (19) has lock bar (17), and mutually perpendicular between the central line of lock bar (17) and adjusting lever (19), center block (16) are established to be cylindrical, the bottom of center block (16) is provided with the circular arc groove, and the bottom of center block (16) is equipped with the spacing groove with lock bar (17) adaptation.

6. The welding device for high-precision pipe machining according to claim 3, wherein the welding device comprises: and threads are arranged on one side of the middle part of the detection screw rod (24).

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