Clamping type welding equipment for pipeline

Abstract

The utility model discloses clamping type welding equipment for pipelines, which is characterized in that a clamping cavity is formed in a rotating chuck, the top of the inner side of the clamping cavity is rotatably connected with a bidirectional clamping screw rod along the horizontal direction, and the end part of the bidirectional clamping screw rod is connected with a knob; the outer side of the bidirectional clamping screw rod and the outer side of the guide rod are each connected with two sets of clamping arc blocks which are oppositely arranged, and the arc faces of the opposite sides of the two sets of clamping arc blocks are each provided with a rubber pad in an adhesive mode. The two clamping arc blocks are conveniently and synchronously driven to move through the two-way clamping lead screws before welding, the two two-way clamping lead screws are both semicircular, the two-way clamping lead screws are matched with rubber pads to effectively clamp and limit a pipeline when the pipeline is clamped, and the two-way clamping device can be suitable for clamping pipelines with different pipe diameters; therefore, the clamping stability and the welding precision of the pipeline in the welding process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a clamping type welding device for pipelines. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Pipes are materials that welding equipment often processes. At present, when liquids and gases need to be transported over long distances, they need to be transported using pipelines. Therefore, shorter pipelines need to be welded into longer pipelines for easy transportation.

[0003] However, in actual application, the welding equipment currently used for pipelines cannot effectively clamp the pipelines during the clamping process due to the different diameters of the pipelines and the circular circumference of the pipelines. In addition, the clamping positions during welding will also be different due to the different lengths of the welded pipelines. The current welding equipment has a fixed clamping position, so it is impossible to adjust the position of the clamping parts according to the welding needs of the pipeline, thereby affecting the clamping stability and reducing the accuracy of subsequent welding. Utility Model Content

[0004] The utility model provides a clamping welding device for pipelines, which can effectively solve the problem mentioned in the above background technology that the current welding device for pipelines cannot effectively clamp the pipelines during the clamping process due to the different diameters of the pipelines and the circular circumference of the pipelines during actual application, and the clamping positions during welding will also be different due to the different lengths of the welded pipelines. However, the current welding device cannot adjust the position of the clamping component according to the welding requirements of the pipeline due to its fixed clamping position, thereby affecting the clamping stability and reducing the accuracy of subsequent welding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping welding device for pipes, comprising a supporting base plate, a supporting frame is fixedly installed at the middle end of one side edge of the supporting base plate, a hydraulic cylinder is installed at the middle of the top end of the supporting frame, and a welding head is installed at the telescopic end position of the bottom of the hydraulic cylinder;

[0006] Guide grooves are symmetrically provided on both sides of the top of the support base plate, and a bidirectional driving screw is embedded and rotatably connected to the inner side of one guide groove, one end of the bidirectional driving screw is fixedly connected to a turntable, and a driving slider is embedded and slidably connected to the inner sides of the two guide grooves, and the bidirectional driving screw is connected to the driving slider at the corresponding position inside the guide groove through a threaded connection, and a sliding support is fixedly connected to the top of the driving slider, and a rotating chuck is rotatably connected to the inner side of the sliding support;

[0007] A clamping cavity is provided inside the rotating chuck, a guide rod is fixedly installed on the inner bottom of the clamping cavity in the horizontal direction, a bidirectional clamping screw is rotatably connected to the inner top of the clamping cavity in the horizontal direction, a knob is connected to the end of the bidirectional clamping screw, and two groups of clamping arc blocks arranged oppositely are connected to the outer sides of the bidirectional clamping screw and the guide rod, and rubber pads are bonded to the arc surfaces on the opposite sides of the two groups of clamping arc blocks.

[0008] Preferably, two sets of driving sliders are provided at the bottom of the sliding support, one driving slider is connected to the bidirectional driving screw rod through a thread, and the other driving slider is fitted and slidably connected to the inner side of the guide groove.

[0009] Preferably, a through hole is provided inside the rotating chuck, and both side edges of the clamping cavity are arranged as arc grooves, and both groups of clamping arc blocks are semicircular structures.

[0010] Preferably, the guide rod is slidably connected to the clamping arc block, and the bidirectional clamping screw rod is connected to the clamping arc block by threaded engagement.

[0011] Preferably, a rotation through slot is formed inside the sliding support, and a connecting tube is connected to the edge of the rotating chuck corresponding to the rotation through slot, and the end of the connecting tube at the edge of one rotating chuck is fixedly connected to a limiting end ring, and the end of the connecting tube at the edge of the other rotating chuck is fixedly connected to a driving gear ring;

[0012] A driving motor is fixedly installed at a position on the edge of the sliding support corresponding to the edge of the driving gear ring. The driving motor is powered by an external power supply, and the end of the output shaft of the driving motor is fixedly connected to a driving gear.

[0013] Preferably, the rotating chuck is connected to the inner side of the rotating through groove through a connecting tube at its end, and the inner wall of the rotating through groove fits with the outer side surface of the connecting tube;

[0014] The driving gear is meshed with the driving gear ring through gear teeth.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0016] 1. By rotating the clamping cavity, guide rod, bidirectional clamping screw, clamping arc block, rubber pad and knob set in the chuck, it is convenient to synchronously drive the two clamping arc blocks to move through the bidirectional clamping screw before welding. The two bidirectional clamping screws are both semicircular, and can effectively clamp and limit the pipe when the pipe is clamped with the rubber pad, and can be suitable for clamping pipes of different diameters, thereby ensuring the stability of the pipe clamping during the welding process and the accuracy of welding;

[0017] By utilizing the guide groove, bidirectional drive screw and turntable arranged on the inner side of the support base plate, it is convenient to drive the driving slider and the sliding support and rotating clamping plate on its top to move, so as to adjust the clamping position of the clamping mechanism. When welding pipes of different lengths, the clamping position can be flexibly adjusted, which is convenient for more stable clamping of the pipe, and further improves the stability during subsequent welding of the pipe ends.

[0018] 2. The rotating through groove opened inside the sliding support cooperates with the connecting tube, the limiting end ring and the driving gear ring connected to the end of the rotating chuck, so that the rotating chuck can be flexibly rotated along the edge of the sliding support, and the driving mechanism composed of a driving motor and a driving gear is used to drive the driving gear ring to rotate during welding, so that it can rotate stably during pipeline welding, which is convenient for the welding head to weld along the circumferential direction of the pipeline welding position, improves the convenience of welding, and ensures the welding quality of the pipeline end welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the bidirectional driving screw rod of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the clamping arc block of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the rotating chuck of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the connecting tube of the utility model;

[0026] Numbers in the figure: 1. Support base plate; 2. Support frame; 3. Hydraulic cylinder; 4. Welding head; 5. Guide groove; 6. Bidirectional driving screw; 7. Turntable; 8. Driving slider; 9. Sliding support; 10. Rotating chuck; 11. Clamping cavity; 12. Guide rod; 13. Bidirectional clamping screw; 14. Clamping arc block; 15. Rubber pad; 16. Knob; 17. Rotating through groove; 18. Connecting tube; 19. Limit end ring; 20. Driving gear ring; 21. Driving motor; 22. Driving gear. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example: Figure 1-5 As shown, the utility model provides a technical solution, a clamping type welding device for pipes, comprising a supporting base plate 1, a supporting frame 2 is fixedly installed at the middle end of one side edge of the supporting base plate 1, a hydraulic cylinder 3 is installed at the middle of the top end of the supporting frame 2, and a welding head 4 is installed at the telescopic end position of the bottom of the hydraulic cylinder 3;

[0029] Guide grooves 5 are symmetrically provided on both sides of the top of the supporting base plate 1, and a bidirectional driving screw rod 6 is embedded and rotatably connected to the inner side of one guide groove 5, and a turntable 7 is fixedly connected to one end of the bidirectional driving screw rod 6, and a driving slider 8 is embedded and slidably connected to the inner sides of the two guide grooves 5. The bidirectional driving screw rod 6 is connected to the driving slider 8 at the corresponding position inside the guide groove 5 through a threaded connection, and a sliding support 9 is fixedly connected to the top of the driving slider 8. Two groups of driving sliders 8 are arranged at the bottom of the sliding support 9, one driving slider 8 is connected to the bidirectional driving screw rod 6 through a thread, and the other driving slider 8 is slidably connected to the inner side of the guide groove 5, so as to facilitate driving the two groups of driving sliders 8 to move, and to facilitate driving the sliding support 9 to move, and the inner side of the sliding support 9 is rotatably connected to a rotating chuck 10;

[0030] A clamping cavity 11 is provided inside the rotating chuck 10, and a guide rod 12 is fixedly installed on the inner bottom of the clamping cavity 11 in the horizontal direction. A bidirectional clamping screw 13 is rotatably connected to the inner top of the clamping cavity 11 in the horizontal direction. A knob 16 is connected to the end of the bidirectional clamping screw 13, and two sets of clamping arc blocks 14 arranged opposite to each other are connected to the outer sides of the bidirectional clamping screw 13 and the guide rod 12. A through hole is provided inside the rotating chuck 10, and the two side edges of the clamping cavity 11 are arranged as arc grooves. The two sets of clamping arc blocks 14 are both semicircular structures, which are convenient for the insertion of the pipeline and the limited clamping of the pipeline. The guide rod 12 is slidably connected to the clamping arc block 14, and the bidirectional clamping screw 13 is connected to the clamping arc block 14 by a threaded fit, which is convenient for driving the two clamping arc blocks 14 to move by the bidirectional clamping screw 13, and rubber pads 15 are bonded to the arc surfaces on the opposite sides of the two sets of clamping arc blocks 14.

[0031] A rotating through groove 17 is formed inside the sliding support 9, and a connecting tube 18 is connected to the side of the rotating chuck 10 corresponding to the rotating through groove 17. The rotating chuck 10 is connected to the inner side of the rotating through groove 17 through the connecting tube 18 at its end, and the inner wall of the rotating through groove 17 fits with the outer side of the connecting tube 18, so as to facilitate the connection and rotation between the rotating chuck 10 and the sliding support 9. The end of the connecting tube 18 at the side of one rotating chuck 10 is fixedly connected to the limiting end ring 19, and the end of the connecting tube 18 at the side of the other rotating chuck 10 is fixedly connected to the driving gear ring 20.

[0032] A driving motor 21 is fixedly installed at the edge of the sliding support 9 corresponding to the edge of the driving gear ring 20. The driving motor 21 is powered by an external power supply, and a driving gear 22 is fixedly connected to the end of the output shaft of the driving motor 21. The driving gear 22 and the driving gear ring 20 are meshed with gear teeth, so that the driving gear 22 can be used to drive the driving gear ring 20 to rotate.

[0033] Working principle and use process of the utility model: In the actual application process of the clamping welding device for pipes, firstly, the two pipes to be welded are respectively inserted into the sliding support 9 and the rotating chuck 10 through the rotating through groove 17 inside the sliding support 9 and the perforation inside the rotating chuck 10, and then the positions of the sliding support 9 and the rotating chuck 10 are adjusted according to the length of the welding pipe, so as to adjust the clamping position of the welding pipe;

[0034] In the process of adjusting the position of the sliding support 9 and the rotating chuck 10, the rotating turntable 7 is rotated to drive the bidirectional driving screw 6 to rotate, thereby driving the driving slider 8 and the sliding support 9 and the rotating chuck 10 on the top thereof to move along the guide groove 5 to limit the position, so as to adjust the clamping position of the clamping mechanism, so as to flexibly adjust the clamping position when welding pipes of different lengths;

[0035] After the positions of the sliding support 9 and the rotating chuck 10 are adjusted, the welding pipe needs to be limited and clamped. First, the ends of the two welding pipes are aligned and contacted, and the contact position of the ends of the two welding pipes is made to correspond to the position of the welding head 4. Then, the two-way clamping screw 13 is driven to rotate by turning the knob 16. The two clamping arc blocks 14 are synchronously driven to move in the clamping cavity 11 by the rotation of the two-way clamping screw 13 and the guiding effect of the guide rod 12. The two two-way clamping screws 13 are both semicircular. With the help of the rubber pad 15 bonded to the inner side thereof, the pipe can be effectively clamped and limited. The mobile clamping method of the two clamping arc blocks 14 can also be applicable to the clamping of pipes of different diameters, thereby ensuring that the pipe is clamped more stably during the welding process and improving the welding accuracy of the pipe.

[0036] After the ends of the two welding pipes are aligned and the welding pipes are clamped and fixed, the hydraulic cylinder 3 is used to drive the welding head 4 to descend, and the welding head 4 is used to preliminarily perform spot welding on the ends of the pipes, so that the ends of the two welding pipes are preliminarily limited, and then the welding head 4 is removed, and the driving motor 21 is started. The driving mechanism composed of the driving motor 21 and the driving gear 22 is used to conveniently drive the driving gear ring 20 to rotate during welding, and the sliding support 9 is provided with a rotating through groove 17 inside, which cooperates with the connecting tube 18, the limiting end ring 19 and the driving gear ring 20 connected to the end of the rotating chuck 10, so that the rotating chuck 10 can be flexibly rotated along the edge of the sliding support 9, so that the pipeline can be stably rotated during pipeline welding;

[0037] After the welding pipe rotates with the rotating chuck 10, the welding head 4 is moved again to the welding position of the two ends of the welding pipes for welding, so that the welding head 4 can weld along the circumferential direction of the pipe welding position, thereby improving the convenience of welding and ensuring the welding quality of the pipe.

[0038] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A clamping type welding device for pipes, comprising a supporting base plate (1), characterized in that: A support frame (2) is fixedly mounted at the middle end of one side edge of the support base plate (1), a hydraulic cylinder (3) is mounted at the middle of the top end of the support frame (2), and a welding head (4) is mounted at the telescopic end of the bottom of the hydraulic cylinder (3); Guide grooves (5) are symmetrically provided on both sides of the top of the support base plate (1), and a bidirectional driving screw rod (6) is embedded in the inner side of one guide groove (5) and is rotatably connected thereto, one end of the bidirectional driving screw rod (6) is fixedly connected to a turntable (7), and a driving slider (8) is embedded in the inner sides of the two guide grooves (5) and is slidably connected thereto, the bidirectional driving screw rod (6) and the driving slider (8) at the corresponding position inside the guide groove (5) are connected by threads, a sliding support (9) is fixedly connected to the top of the driving slider (8), and a rotating chuck (10) is rotatably connected to the inner side of the sliding support (9); The rotating chuck (10) is provided with a clamping cavity (11) inside, a guide rod (12) is fixedly installed on the inner bottom of the clamping cavity (11) in the horizontal direction, and a bidirectional clamping screw rod (13) is rotatably connected to the inner top of the clamping cavity (11) in the horizontal direction, a knob (16) is connected to the end of the bidirectional clamping screw rod (13), and two groups of clamping arc blocks (14) arranged opposite to each other are connected to the outer sides of the bidirectional clamping screw rod (13) and the guide rod (12), and rubber pads (15) are bonded to the arc surfaces on the opposite sides of the two groups of clamping arc blocks (14).

2. A clamping type welding device for pipes according to claim 1, characterized in that: Two groups of driving slide blocks (8) are arranged at the bottom of the sliding support (9), one driving slide block (8) is connected to the bidirectional driving screw rod (6) through a thread, and the other driving slide block (8) is fitted and slidably connected to the inner side of the guide groove (5).

3. A clamping type welding device for pipes according to claim 1, characterized in that: The rotating chuck (10) is provided with a through hole inside, and both side edges of the clamping cavity (11) are arranged as arc grooves, and the two groups of clamping arc blocks (14) are both semicircular structures.

4. A clamping type welding device for pipes according to claim 3, characterized in that: The guide rod (12) is connected to the clamping arc block (14) by sliding, and the bidirectional clamping screw rod (13) is connected to the clamping arc block (14) by threaded engagement.

5. The clamping type welding device for pipes according to claim 1, characterized in that: A rotation slot (17) is formed inside the sliding support (9), and a connecting tube (18) is connected to the edge of the rotating chuck (10) corresponding to the rotation slot (17). The end of the connecting tube (18) at the edge of one rotating chuck (10) is fixedly connected to a limiting end ring (19), and the end of the connecting tube (18) at the edge of the other rotating chuck (10) is fixedly connected to a driving gear ring (20); A driving motor (21) is fixedly mounted on the edge of the sliding support (9) at a position corresponding to the edge of the driving gear ring (20); the driving motor (21) is powered by an external power supply, and a driving gear (22) is fixedly connected to the end of the output shaft of the driving motor (21).

6. A clamping type welding device for pipes according to claim 5, characterized in that: The rotating chuck (10) is connected to the inner side of the rotating groove (17) through a connecting tube (18) at its end in a limited rotation manner, and the inner wall of the rotating groove (17) fits with the outer side surface of the connecting tube (18); The driving gear (22) is connected to the driving gear ring (20) through gear tooth meshing.

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