Omnibearing water conservancy and hydropower pipeline automatic welding device and welding process

Abstract

The invention discloses an all-dimensional automatic welding device and process for water conservancy and hydropower pipelines, and relates to the technical field of pipeline welding. The device comprises a feeding mechanism which comprises a bottom plate, conveyors symmetrically distributed above the bottom plate and limiting assemblies arranged on the inner sides of the conveyors; the clamping and positioning mechanism is arranged between the two conveyors and comprises symmetrically distributed clamping assemblies and a second electric push rod arranged below the position between the two clamping assemblies; and the welding mechanism is arranged between the two clamping assemblies and comprises a rotating sleeve, a welding head on the inner side of the rotating sleeve, limiting sleeves arranged outside the two sides of the rotating sleeve in a clearance fit mode and a driving motor on the right side of the upper portion of the rotating sleeve. According to the pipeline welding device, automatic feeding is achieved through the feeding mechanism, the labor intensity is reduced, the pipeline body is automatically clamped through the clamping and positioning mechanism, the pipeline body and the rotating sleeve are kept in a coaxial state, operation is more convenient, welding operation can be completed at a time through the welding mechanism, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, and in particular to an all-round automatic welding device for water conservancy and hydropower pipelines and a welding process. Background Art

[0002] There are many types of pipes in water conservancy and hydropower projects, including water diversion pipes, pressure pipes, drainage pipes, diversion pipes, sewage pipes and regulating pipes. In addition, there are pipes that provide protection for cables. Among the above pipes, for some pipes with relatively small diameters, in order to make the pipes connected as a whole during installation, it is necessary to weld the joints of the pipes; At present, welding between two pipes is usually performed by making the two ends of the two pipes contact each other and making the two pipes coaxially arranged. During welding, the welding head is usually fixed and at a distance suitable for welding with the welding ends of the two pipes, so that the two pipes rotate synchronously to realize the welding process between the welding ends of the two pipes. For example, the authorization announcement number CN117532263B discloses a fully adjustable automatic welding device for water conservancy and hydropower pipelines and a method for using the device. The main process of the device in actual use is to first adjust the position of the support wheel to adjust the support height of the pipeline according to the size of the pipeline to be welded, and then align the ends of the two pipes, and then use the first electric push rod and the second electric push rod to clamp and fix the two pipes. After the position of the welding head is adjusted, the two pipes are rotated by rotating the installation sleeve to realize the welding process. However, in the actual operation process, after the operator places the two pipes on the corresponding support wheels respectively, it is necessary to manually apply a force in the direction of the installation sleeve to the two pipes to align the welding ends of the two pipes. The operation is relatively cumbersome and increases the labor intensity of the operator. At the same time, when adjusting the distance between the support wheels, the prior art is not convenient for determining whether the two pipes are coaxial with the mounting sleeve. When the pipes and the mounting sleeve are in an eccentric state, the two pipes cannot be smoothly rotated one circle, which makes the operation complicated and also poses a risk of damage to the first electric push rod and the second electric push rod. In the prior art, after the first electric push rod and the second electric push rod work to clamp the pipe, the installation sleeve is rotated to drive the two pipes to rotate so that the welding assembly can weld the two ends of the two pipes to be welded. However, in actual use, due to the obstruction of the first electric push rod, the welding work of the two pipe ends needs to be completed in steps, which reduces the welding efficiency. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the fact that in the actual operation of the above-mentioned prior art, after the operator places the two pipes on the corresponding support wheels respectively, it is necessary to manually apply force to the two pipes in the direction of the installation sleeve to align the welding ends of the two pipes, the operation is relatively cumbersome and increases the labor intensity of the operator, an all-round automatic welding device for water conservancy and hydropower pipelines is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an all-round automatic welding device for water conservancy and hydropower pipelines, comprising: a feeding mechanism, including a bottom plate, a conveyor symmetrically distributed above the bottom plate and a limit assembly arranged on the inner side of the conveyor, the limit assembly comprising a double-headed motor located below the conveyor, screws are fixed on the two power output shafts of the double-headed motor, vertical plates are connected to the external threads of the screws corresponding to the two sides of the conveyor, the threads of the two screws are in opposite directions to achieve the vertical plates approaching or moving away from each other along the axis of the screw, a movable plate is arranged on the inner side of the vertical plate corresponding to the top of the conveyor, U-shaped plates are fixed at both ends of the movable plate, and conical rollers are arranged on the inner side of the U-shaped plate; a clamping and positioning mechanism arranged between the two conveyors, comprising a symmetrically distributed clamping assembly and two clamping assemblies. An electric push rod 2 is arranged below between the components, and the clamping component includes a fixed ring arranged coaxially and distributed in the horizontal direction, a rotating ring arranged with a clearance fit outside the fixed ring, and clamps distributed in a circular array on the inner side of the fixed ring, a round rod is fixed on the fixed ring corresponding to the position of the clamp, a connecting shaft is fixed on the rotating ring corresponding to the outer side of the round rod, and a through groove is provided on the clamping plate corresponding to the position of the connecting shaft; a welding mechanism is arranged between the two clamping components, the welding mechanism includes a rotating sleeve, a welding head on the inner side of the rotating sleeve, a limit sleeve arranged with a clearance fit on both sides of the rotating sleeve, and a driving motor on the right side above the rotating sleeve, a gear is fixed on the power output shaft of the driving motor, and a tooth groove is provided on the outer peripheral wall of the rotating sleeve corresponding to the position of the gear; and a pipeline body is arranged on both sides below the welding head.

[0006] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, a mounting plate is arranged below the conveyor, and slide plates with L-shaped cross sections and slidingly connected to the bottom plate are symmetrically fixed on both sides of the lower wall of the mounting plate, and a guide strip with L-shaped cross sections is fixed on the outside of the lower end of the slide plate corresponding to the upper wall of the bottom plate.

[0007] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, connecting plates are symmetrically fixed on both sides of the lower wall of the conveyor, a damper is fixed at the middle position of the lower wall of the connecting plate, the lower end of the damper is fixedly connected to the mounting plate, the outer sleeve of the damper is provided with an elastic member, the two ends of the elastic member are respectively abutted against the corresponding connecting plate and the mounting plate, guide sleeves are fixed to the upper walls of the mounting plates on both sides of the elastic member, a guide rod is provided in cooperation with the internal clearance of the guide sleeve, and the upper end of the guide rod is fixedly connected to the connecting plate.

[0008] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, wherein: a fixed plate is fixed on the upper wall of the double-head motor, and the fixed plate is fixedly connected to the conveyor; a limit rod is arranged in cooperation with the internal clearance of the vertical plate, and the inner end of the limit rod is fixedly connected to the conveyor; a circular tube is fixed on the outer wall of the movable plate, and a guide block is arranged in cooperation with the internal clearance of the circular tube, and the guide block is fixedly connected to the vertical plate, and a pressure sensor is fixed between the guide block and the movable plate; rotating rods are fixed at the middle positions of both ends of the tapered roller, and the rotating rods are rotatably connected to the U-shaped plate through bearings, and the diameter of the upper wall of the tapered roller is larger than the diameter of the lower wall of the tapered roller.

[0009] The beneficial effects of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention are as follows: by operating the pipeline body to be placed on the conveyor belt surface on the conveyor, and making the pipeline body located between the tapered rollers on both sides of the conveyor, the controller is operated to perform the loading operation, and the controller controls the double-headed motor to work so that the tapered rollers on the front and rear sides of the conveyor are close to each other and clamp the pipeline body to limit the position, and then the controller makes the conveyor work, and the movement of the conveyor belt drives the pipeline body to move into the clamping assembly, thereby realizing automatic loading of the pipeline body. Compared with the prior art, there is no need for manual loading, which makes the loading process simpler and more labor-saving, and reduces the labor intensity of the operator.

[0010] In view of the fact that the above-mentioned prior art is not convenient for determining whether the two pipes are in a coaxial state with the mounting sleeve when adjusting the distance between the support wheels, when the pipes and the mounting sleeve are in an eccentric state, the two pipes will not be able to rotate one circle smoothly, which makes the operation cumbersome and there is a hidden danger of damage to the first electric push rod and the second electric push rod. Therefore, further improvements are made to an all-round automatic welding device for water conservancy and hydropower pipelines.

[0011] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, wherein: the telescopic end of the electric push rod 2 is fixed with the pressure sensor 2, the rear wall of the pressure sensor 2 is fixed with a rotating block, the internal clearance of the rotating block is matched with a rotating column, both ends of the rotating column are fixed with rotating plates, the rotating plates are fixedly connected to the corresponding rotating rings, the front end of the electric push rod 2 is fixed with an end plate, the two side walls of the end plate are fixed with connecting rods, and the external clearance of the connecting rod is matched with a U-shaped frame fixedly connected to the bottom plate.

[0012] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, a support plate is fixed to the lower end of the inner side wall of the fixed ring, an electric push rod is fixed between the two support plates on the same side, the support plate close to the rotating column is fixedly connected to the bottom plate, and a limit plate slidably connected to the bottom plate is fixed to the bottom of the support plate away from the rotating column, and the limit plate is located on the inner side of the two guide strips.

[0013] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, wherein: a photoelectric sensor is fixed on the inner side wall of the fixed ring close to the welding mechanism, a baffle is fixed on the outer end of the connecting shaft, a convex ring is fixed on the outer peripheral wall of the fixed ring, a groove is provided on the inner peripheral wall of the rotating ring corresponding to the position of the convex ring, and the convex ring is located inside the groove; a telescopic sleeve is fixed on the side wall of the fixed ring close to the photoelectric sensor, a telescopic rod is provided in cooperation with the internal clearance of the telescopic sleeve, the telescopic rod is fixedly connected to the corresponding fixed ring, a protrusion is fixed on the outer peripheral wall of the telescopic rod, and a limiting groove is axially provided on the outer peripheral wall of the telescopic sleeve corresponding to the position of the protrusion.

[0014] Another beneficial effect of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention is: after the pipeline body is transported to the two fixed rings on the same side by the feeding mechanism, the rotating ring is driven to rotate by the second electric push rod, and with the cooperation of the round rod and the through groove, the clamping plates distributed in a circular array are driven to contact the outer wall of the pipeline body, so as to achieve the purpose of clamping and fixing the pipeline body. Compared with the prior art, the two clamping components are in a symmetrical state and are coaxially arranged, so that after the clamping plates clamp and fix the pipeline body, the two pipeline bodies are in a coaxial state, realizing automatic clamping and positioning of the two pipeline bodies, which is not only simpler to operate but also highly automated.

[0015] In view of the above-mentioned prior art, after the first electric push rod and the second electric push rod work to clamp the pipeline, the installation sleeve is rotated to drive the two pipelines to rotate so that the welding assembly can weld the two ends of the two pipelines to be welded. However, in actual use, due to the obstruction of the first electric push rod, the welding work of the two pipeline ends needs to be completed in steps, which reduces the welding efficiency. Therefore, a further improvement is made to an all-round automatic welding device for water conservancy and hydropower pipelines.

[0016] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, a horizontal plate is fixed on the upper wall of the welding head, a micro switch is fixed on one side of the welding head corresponding to the lower wall of the horizontal plate, an electric push rod three is fixed on the upper wall of the horizontal plate, and the outer end of the electric push rod three is fixedly connected to the rotating sleeve.

[0017] As a preferred solution of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention, wherein: a threading hole is opened on the rotating sleeve corresponding to the position of the welding head, and annular plates are symmetrically fixed to the outer peripheral wall of the rotating sleeve corresponding to both sides of the threading hole, and legs are fixed on the front and rear sides of the limiting sleeve, and the lower ends of the legs are fixedly connected to the bottom plate, and a side plate is fixed to the right wall of the driving motor, and the side plate is fixedly connected to the corresponding fixing ring.

[0018] Another beneficial effect of the all-round automatic welding device for water conservancy and hydropower pipelines of the present invention is: by utilizing the driving motor to drive the gear to rotate, the rotating sleeve is rotated in its original position under the action of the tooth groove, so that the welding head is at a suitable welding distance from the welding end of the pipeline body, and all-round automatic welding is performed on the welding end around the welding end. Compared with the prior art, there is no need to complete the welding operation in steps, so that the welding efficiency is higher.

[0019] The present invention also provides an all-round automated welding process for water conservancy and hydropower pipelines, and the welding operation is performed according to the following steps: S1. When the welding ends of the two pipe bodies move to the lower ends of the welding heads and are in a fixed state, the controller controls the electric push rod 3 to work, and the electric push rod 3 drives the welding heads to move toward the welding ends until the contacts in the micro switch contact the pipe bodies, and the controller controls the electric push rod 3 to stop working; S2. Then make the welding head work, and make the controller control the driving motor to work synchronously. When the driving motor works, it drives the gear to rotate, and the rotating sleeve rotates at a fixed position under the cooperation of the tooth groove, driving the welding head to rotate along the welding end at a fixed welding distance. When the rotating sleeve rotates one circle, the automatic welding of the pipeline body is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is the overall structural diagram of an all-round automatic welding device for water conservancy and hydropower pipelines.

[0021] Figure 2It is a rear view structural diagram of an all-round automatic welding device for water conservancy and hydropower pipelines.

[0022] Figure 3 This is a structural diagram of the connection between the feeding mechanism and the pipeline body.

[0023] Figure 4 This is a partial structural diagram of the feeding mechanism.

[0024] Figure 5 for Figure 4 Partial structure diagram of .

[0025] Figure 6 This is a structural diagram of the limit component.

[0026] Figure 7 This is a structural diagram of the clamping and positioning mechanism.

[0027] Figure 8 A structural diagram of the clamping assembly.

[0028] Fig. 9 It is the exploded structure diagram between the fixed ring and the rotating ring.

[0029] Fig.10 This is the structural diagram of the welding mechanism.

[0030] Fig.11 This is the left view of the welding mechanism.

[0031] Fig.12 This is a top-down structural diagram of the welding mechanism.

[0032] Fig.13 for Fig.12 Exploded view of the structure of the middle part.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-feeding mechanism, 101-mounting plate, 101a-slide plate, 101b-guide sleeve, 101c-damper, 101d-elastic member, 102-bottom plate, 102a-guide strip, 103-conveyor, 103a-limiting rod, 103b-fixing plate, 104-connecting plate, 104a-guide rod, 105-moving plate, 105a-U-shaped plate, 106-vertical plate, 107-double-headed motor, 107a-screw, 108-conical roller, 108a-rotating rod, 109-guide block, 110-reciprocating tube, 111-pressure sensor 1, 2-clamping and positioning mechanism, 201-rotating ring, 201a-round rod, 201b-groove, 202-telescopic rod, 202a-protrusion, 203-telescopic sleeve, 203a-limiting groove, 204-baffle, 205-fixing ring, 205a-photoelectric sensor, 205b-convex ring, 205c-connecting shaft, 206-clamping plate, 206a-through groove, 207-electric push rod 1, 208-support plate, 208a-limiting plate, 209-rotating column, 209a- Rotating block, 209b-rotating plate, 210-electric push rod two, 210a-pressure sensor two, 211-U-shaped frame, 212-end plate, 212a-connecting rod, 3-welding mechanism, 301-rotating sleeve, 301a-tooth groove, 301b-annular sheet, 301c-threading hole, 302-driving motor, 302a-side plate, 302b-gear, 303-electric push rod three, 303a-cross plate, 304-welding head, 305-micro switch, 306-limit sleeve, 306a-support leg, 4-pipeline body. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example 1

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , which is the first embodiment of the present invention. This embodiment provides an all-round automatic welding device for water conservancy and hydropower pipelines. After the conical rollers 108 on both sides of the conveyor 103 limit the clamping of the pipeline body 4, the conveyor 103 is used to make the pipeline body 4 enter the clamping assembly, thereby realizing automatic loading of the pipeline body 4 and reducing the labor intensity of the operator.

[0039] Specifically, it includes a feeding mechanism 1, including a bottom plate 102, a conveyor 103 symmetrically distributed above the bottom plate 102, and a limit assembly arranged inside the conveyor 103. The conveyor 103 can be a belt conveyor 103, which is used to transport the pipeline body 4. The two conveyors 103 have the same conveying speed and can work independently or synchronously. A clamping and positioning mechanism 2 is arranged between the two conveyors 103, including symmetrically distributed clamping assemblies and an electric push rod 210 arranged below the two clamping assemblies, and the electric push rod 210 is arranged below the two clamping assemblies. 0 is used to drive the rotating ring 201 to rotate; the welding mechanism 3 is arranged between the two clamping components, the welding mechanism 3 includes a rotating sleeve 301, a welding head 304 inside the rotating sleeve 301, a limiting sleeve 306 arranged with external clearances on both sides of the rotating sleeve 301, and a driving motor 302 on the right side above the rotating sleeve 301, the welding head 304 is connected to an external welding machine, the welding machine can also be connected to the controller, and the driving motor 302 is electrically connected to the controller; and, the pipe body 4 arranged on both sides below the welding head 304 is the pipe to be welded.

[0040] Read in detail Figure 4 , Figure 5 and Figure 6As shown, the limit assembly includes a double-headed motor 107 located below the conveyor 103, the double-headed motor 107 is a servo motor that can rotate forward and reverse, and screws 107a are fixed on the two power output shafts of the double-headed motor 107, and vertical plates 106 are connected to the external threads of the screws 107a corresponding to the two sides of the conveyor 103, and the threads of the two screws 107a are opposite in direction to achieve the vertical plates 106 to move closer to or farther away from each other along the axis direction of the screws 107a, and a movable plate 105 is arranged on the inner side of the vertical plate 106 corresponding to the upper side of the conveyor 103, and U-shaped plates 105a are fixed on both ends of the movable plate 105, and a conical roller 108 is arranged on the inner side of the U-shaped plate 105a to achieve clamping and releasing of the pipeline body 4; The above arrangement enables the double-headed motor 107 to work and drive the two screws 107a to rotate through the controller, so that the vertical plates 106 move closer to or farther away from the conveyor 103, and drive the conical rollers 108 to clamp or release the pipe body 4. Two conical rollers 108 are provided on the front and rear sides of the conveyor 103. Clamping a pipe body 4 by four conical rollers 108 can prevent the pipe body 4 from tilting and being unable to enter the interior of the clamping assembly.

[0041] Read in detail Figure 3 and Figure 4 As shown, a mounting plate 101 is provided below the conveyor 103, and the mounting plate 101 is fixedly connected to the corresponding support plate 208, so that the clamping conveyor 103 can be moved synchronously when the length of the clamping assembly is adjusted to avoid interference. Slide plates 101a with an L-shaped cross section and slidably connected to the bottom plate 102 are symmetrically fixed on both sides of the lower wall of the mounting plate 101, and a guide strip 102a with an L-shaped cross section is fixed to the outer portion of the lower end of the slide plate 101a corresponding to the upper wall of the bottom plate 102; The above arrangement, through the cooperation of the slide plate 101a and the guide bar 102a, allows the position of the conveyor 103 to be adjusted synchronously when the length of the clamping assembly is adjusted, so that the conveyor 103 and the corresponding clamping assembly are at a relatively fixed distance.

[0042] Read in detail Figure 4 and Figure 5 As shown, connecting plates 104 are symmetrically fixed on both sides of the lower wall of the conveyor 103, a damper 101c is fixed at the middle position of the lower wall of the connecting plate 104, the lower end of the damper 101c is fixedly connected to the mounting plate 101, an elastic member 101d is sleeved on the outside of the damper 101c, the two ends of the elastic member 101d are respectively abutted against the corresponding connecting plate 104 and the mounting plate 101, guide sleeves 101b are fixed on the upper walls of the mounting plate 101 on both sides of the elastic member 101d, a guide rod 104a is provided in the internal clearance of the guide sleeve 101b, the upper end of the guide rod 104a is fixedly connected to the connecting plate 104, and the cooperation between the guide sleeve 101b and the guide rod 104a prevents the conveyor 103 from tilting; The above arrangement provides a buffering and shock-absorbing effect for the conveyor 103 by utilizing the cooperation of the damper 101c and the elastic member 101d, thereby preventing the pipe body 4 from hitting the conveyor 103 and damaging the conveyor 103 due to misoperation. At the same time, when the pipe body 4 is placed on the conveyor 103, the height of the conveyor 103 will be reduced to a certain extent under the action of the gravity of the pipe body 4, so that the pipe bodies 4 of different diameters can be placed on the conveyor 103 as close to the axial center height of the clamping assembly as possible.

[0043] Read in detail Figure 4 , Figure 5 and Figure 6 As shown, a fixing plate 103b is fixed to the upper wall of the double-headed motor 107 to provide a fixing platform for the double-headed motor 107. The fixing plate 103b is fixedly connected to the conveyor 103. The fixing plate 103b and the connecting plate 104 are not in contact with the conveyor belt to avoid abnormal wear on the conveyor belt. The internal clearance of the vertical plate 106 is matched with a limit rod 103a, and the limit rod 103a is arranged in parallel with the screw 107a. The use of the limit rod 103a prevents the vertical plate 106 from rotating. The inner end of the limit rod 103a is fixedly connected to the conveyor 103. The outer wall of the movable plate 105 is fixed with a circular tube 110, and the internal clearance of the circular tube 110 is matched with a guide block 109. The guide block 109 is fixedly connected to the vertical plate 106. The cooperation between the circular tube 110 and the guide block 109 can prevent the pressure sensor 111 from being damaged by the vertical force. A pressure sensor 111 is fixed between the guide block 109 and the movable plate 105 for detecting the extrusion force from the movable plate 105. The magnitude of the extrusion force can be achieved by presetting the controller. A rotating rod 108a is fixed at the middle position of both ends of the tapered roller 108, and the rotating rod 108a is rotatably connected to the U-shaped plate 105a through a bearing. The diameter of the upper wall of the tapered roller 108 is larger than the diameter of the lower wall of the tapered roller 108. This arrangement can prevent the pipe body 4 from tilting when the portion of the pipe body 4 located on the conveyor 103 is smaller than the portion of the pipe body 4 located outside the conveyor 103 during the process of moving the pipe body 4 into the clamping assembly. With the above arrangement, the vertical plates 106 move closer to each other, driving the conical rollers 108 on both sides of the conveyor 103 to move closer to each other. At this time, the pressure sensor 111 monitors the extrusion pressure from the movable plate 105 in real time. When the conical rollers 108 are at a suitable extrusion pressure on the pipe body 4, the controller controls the double-headed motor 107 to stop working, thereby realizing automatic control of the extrusion pressure on the pipe body 4.

[0044] Operation process: When loading, firstly, the pipe body 4 is placed on the conveyor belt surface on the conveyor 103 by operating, and the pipe body 4 is located between the tapered rollers 108 on both sides of the conveyor 103. At this time, the controller is operated to perform the loading operation. The controller controls the double-headed motor 107 to drive the screw 107a to rotate, so that the vertical plate 106 moves to drive the guide block 109, the pressure sensor 111, the movable plate 105, the U-shaped plate 105a and the tapered roller 108 to move toward the pipe body 4, until the tapered roller 108 contacts the pipe body 4. The pressure sensor detects the pressure from the movable plate 105 in real time. When the set pressure is reached, the controller controls the double-headed motor 107 to stop working to achieve the clamping limit of the pipe body 4, and then the controller makes the conveyor 103 work, and the conveyor belt movement drives the pipe body 4 to move into the clamping assembly to achieve automatic loading of the pipe body 4. Example 2

[0045] Reference Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig. 9 , which is the second embodiment of the present invention, is based on the previous embodiment. The difference from the previous embodiment is that this embodiment utilizes the cooperation of the symmetrically arranged clamping components and the electric push rod 210 to achieve the clamping and fixing of the pipe body 4 and realize the automatic coaxial state between the two pipe bodies 4.

[0046] For details, please read Figure 7 and Figure 8 As shown, the clamping assembly includes a fixed ring 205 coaxially arranged and horizontally distributed, a rotating ring 201 with a clearance fit outside the fixed ring 205, and clamps 206 distributed in a circumferential array inside the fixed ring 205. The clamping and fixing of the pipe body 4 is achieved by using the clamps 206 in a circumferential array. The rotating ring 201 and the fixed ring 205 are clearance-fitted. A round rod 201a is fixed on the fixed ring 205 corresponding to the position where the clamp 206 is located. The clamp 206 rotates with the round rod 201a as the rotation axis. A connecting shaft 205c is fixed on the rotating ring 201 corresponding to the outer side of the round rod 201a. A through groove 206a is opened on the clamp 206 corresponding to the position where the connecting shaft 205c is located. The connecting shaft 205c is located in the through groove 206a for movement; The above arrangement drives the round rod 201a to rotate by rotating the rotating ring 201, and drives the corresponding clamping plate 206 to rotate synchronously under the action of the through groove 206a and the round rod 201a, and utilizes the synchronous rotation of the clamping plate 206 to clamp and release the pipe body 4.

[0047] Read in detail Figure 7 and Figure 8As shown, the telescopic end of the second electric push rod 210 is fixed with a second pressure sensor 210a, which is used to detect the extrusion force from the rotating block 209a, so that the clamping plate 206 is at a suitable clamping pressure on the pipeline body 4, and the rear wall of the second pressure sensor 210a is fixed with a rotating block 209a, and the internal clearance of the rotating block 209a is matched with a rotating column 209, and the rotating block 209a can rotate relative to the rotating column 209, and both ends of the rotating column 209 are fixed with a rotating plate 209b, and the rotating plate 209b is fixedly connected to the corresponding rotating ring 201, and the front end of the second electric push rod 210 is fixed with an end plate 212, and the two side walls of the end plate 212 are fixed with a connecting rod 212a, and the external clearance of the connecting rod 212a is matched with a U-shaped frame 211 fixedly connected to the bottom plate 102; With the above arrangement, when the electric push rod 210 is working, the end plate 212 and the connecting rod 212a rotate relative to the U-shaped frame 211, and the operation of the electric push rod 210 drives the rotating block 209a and the rotating column 209 to rotate relative to each other, so that the rotating plate 209b and the rotating ring 201 rotate relative to the fixed ring 205, thereby driving the splint 206 to rotate.

[0048] Read in detail Figure 7 As shown, a support plate 208 is fixed to the lower end of the inner side wall of the fixing ring 205 for providing support for the fixing ring 205. An electric push rod 207 is fixed between the two support plates 208 on the same side for adjusting the length of the clamping assembly to adapt to the welding of pipe bodies 4 of different lengths. A component for controlling the synchronous operation of the two electric push rods 207 is also provided between the two electric push rods 207. The component is a prior art and will not be described in detail here. The support plate 208 on the side close to the rotating column 209 is fixedly connected to the bottom plate 102. A limit plate 208a slidably connected to the bottom plate 102 is fixed to the bottom of the support plate 208 on the side away from the rotating column 209. The limit plate 208a is located on the inner side of the two guide bars 102a. This arrangement can prevent the movable limit plate 208a from tilting in the front-rear direction. The above arrangement utilizes the electric push rod 207 to drive the movable support plate 208 to move, thereby driving the corresponding rotating ring 201 and fixed ring 205 to move, thereby adjusting the distance between the two fixed rings 205 in the clamping assembly.

[0049] Read in detail Figure 7 , Figure 8 and Fig. 9As shown, a photoelectric sensor 205a is fixed on the inner side wall of the fixed ring 205 close to the welding mechanism 3, and the position of the pipeline body 4 can be detected by the photoelectric sensor 205a. A baffle 204 is fixed on the outer end of the connecting shaft 205c to prevent the clamping plate 206 from being separated from the connecting shaft 205c. A convex ring 205b is fixed on the outer peripheral wall of the fixed ring 205. A groove 201b is provided on the inner peripheral wall of the rotating ring 201 at the position where the convex ring 205b is located, and the convex ring 205b is located inside the groove 201b. The cooperation between the convex ring 205b and the groove 201b enables the rotating ring 201 to rotate relative to the fixed ring 205. With the above arrangement, when the pipe body 4 moves toward the welding mechanism 3, after the photoelectric sensor 205a detects the pipe body 4, the controller controls the conveyor 103 used to convey the pipe body 4 to stop working, and then performs a loading operation on another pipe body 4, and uses another conveyor 103 to convey the other pipe body 4 toward the welding mechanism 3 until another photoelectric sensor 205a detects the other pipe body 4. In this state, the distance between the two pipe bodies 4 and the welding head 304 is the same.

[0050] Read in detail Figure 7 and Figure 8 As shown, a telescopic sleeve 203 is fixed to the side wall of the fixed ring 205 close to the photoelectric sensor 205a, and a telescopic rod 202 is provided in the internal clearance of the telescopic sleeve 203. The telescopic rod 202 is fixedly connected to the corresponding fixed ring 205, and a protrusion 202a is fixed to the outer peripheral wall of the telescopic rod 202. A limiting groove 203a is axially provided on the outer peripheral wall of the telescopic sleeve 203 at the position where the protrusion 202a is located, and the cooperation between the protrusion 202a and the limiting groove 203a can prevent the telescopic sleeve 203 from being separated from the telescopic rod 202, and at the same time, the two rotating rings 201 in the clamping assembly can also rotate synchronously; With the above arrangement, when the electric push rod 207 is working, it drives the movable support plate 208 to move, thereby driving the corresponding rotating ring 201 and the fixed plate 103b to move. In this state, the telescopic sleeve 203 and the telescopic rod 202 move relative to each other.

[0051] Operation process: According to the length of the pipeline body 4, the operation control makes the electric push rod 207 work, driving the movable support plate 208 to move, so that the corresponding fixed ring 205 and rotating ring 201 move to the appropriate position; When the conveyor 103 conveys the pipe body 4, the pipe body 4 moves close to the welding mechanism 3. When the photoelectric sensor 205a detects the pipe body 4, the controller controls the conveyor 103 used to convey the pipe body 4 to stop working, and then performs a feeding operation on another pipe body 4, and uses another conveyor 103 to convey the other pipe body 4 toward the welding mechanism 3 until another photoelectric sensor 205a detects another pipe body 4. At this time, the controller controls the two pipe bodies 4 to move toward the welding mechanism 3 synchronously until the ends of the two pipe bodies 4 are in contact after the conveyor 103 conveys the pipe body 4 for a set time. At this time, the controller controls the conveyor 103 to stop working; Next, the controller controls the double-headed motor 107 to drive the conical roller 108 to release the clamping force on the pipe body 4. The controller then controls the electric push rod 210 to drive the pressure sensor 210a, the rotating block 209a, the rotating column 209, the rotating plate 209b, the rotating ring 201 and the round rod 201a to rotate, thereby clamping and fixing the pipe body 4. Example 3

[0052] Reference Figure 1 , Figure 2 , Fig.10 , Fig.11 , Fig.12 and Fig.13 , which is the third embodiment of the present invention, is based on any of the above embodiments, and is different from the above embodiments in that: by adopting a method in which the welding head 304 rotates during welding and the pipe body 4 is stationary, the welding head 304 can be made to circle the welding end of the pipe body 4 once to achieve all-round welding of the welding end at one time.

[0053] For details, please read Fig.10 , Fig.11 and Fig.12 As shown, a gear 302b is fixed on the power output shaft of the driving motor 302, and a tooth groove 301a is provided on the outer peripheral wall of the rotating sleeve 301 at the position where the gear 302b is located; With the above arrangement, the driving motor 302 drives the gear 302b to rotate, and the rotating sleeve 301 can be driven to rotate under the action of the tooth groove 301a; A horizontal plate 303a is fixed to the upper wall of the welding head 304, and a micro switch 305 is fixed to one side of the welding head 304 corresponding to the lower wall of the horizontal plate 303a. A high temperature resistant contact rod can be fixed to the contact of the micro switch 305. By using the contact rod to contact the pipe body 4, the micro switch 305 can be placed far away from the welding head 304. The contact rod can prevent the micro switch 305 from being damaged by the high temperature during welding. When the contact rod contacts the pipe body 4, the welding head 304 and the pipe body 4 are at a suitable distance. An electric push rod 303 is fixed to the upper wall of the horizontal plate 303a for adjusting the position of the welding head 304. The outer end of the electric push rod 303 is fixedly connected to the rotating sleeve 301. With the above arrangement, after the two pipe bodies 4 are clamped and fixed, the controller controls the driving motor 302 to work, thereby driving the gear 302b to rotate. Under the action of the tooth groove 301a, the rotating sleeve 301 rotates to drive the welding head 304 to rotate to achieve welding of the welding ends.

[0054] Read in detail Fig.11 , Fig.12 and Fig.13 As shown, a threading hole 301c is provided on the rotating sleeve 301 corresponding to the position of the welding head 304, for passing the connecting pipeline between the welding head 304 and the external welding machine, and for passing the connecting line between the micro switch 305 and the controller. Preferably, the rotating sleeve 301 rotates in the direction that the upper end of the rotating sleeve 301 rotates forward, and annular pieces 301b are symmetrically fixed on the outer peripheral wall of the rotating sleeve 301 on both sides of the threading hole 301c. When the rotating sleeve 301 rotates, the connecting pipeline is located on the inner side of the two annular pieces 301b, and the front and rear sides of the limiting sleeve 306 are fixed with supporting legs 306a, and the lower ends of the supporting legs 306a are fixedly connected to the bottom plate 102, and the right wall of the driving motor 302 is fixed with a side plate 302a, and the side plate 302a is fixedly connected to the corresponding fixing ring 205. With the above arrangement, the connecting line of the welding head 304 passes through the threading hole 301c to be connected to the external welding, and the connecting line of the micro switch 305 passes through the threading hole 301c to be connected to the controller, so that the rotating sleeve 301 rotates one circle to realize all-round automatic welding of the welding end.

[0055] Operation process: During welding, after the two pipe bodies 4 are clamped and fixed, the controller controls the electric push rod 3 303 to extend until the contact in the micro switch 305 abuts against the pipe body 4. At this time, the controller controls the electric push rod 3 303 to stop working, so that the welding head 304 works. The controller controls the drive motor 302 to work, thereby driving the gear 302b to rotate. Under the action of the tooth groove 301a, the rotating sleeve 301 rotates, driving the electric push rod 3 303, the cross plate 303a, and the welding head 304 to rotate to weld the welding end. Example 4

[0056] This embodiment is the fourth embodiment of the present invention. This embodiment provides an all-round automated welding process for water conservancy and hydropower pipelines. The welding operation is performed according to the following steps: S1. When the welding ends of the two pipe bodies 4 move to the lower ends of the welding heads 304 and are in a fixed state, the controller controls the electric push rod 3 303 to work, and the electric push rod 3 303 drives the welding head 304 to move toward the welding end until the contact in the micro switch 305 contacts the pipe body 4, and the controller controls the electric push rod 3 303 to stop working; S2. Then, the welding head 304 is operated, and at the same time, the controller controls the driving motor 302 to operate synchronously. When the driving motor 302 operates, it drives the gear 302b to rotate, and with the cooperation of the tooth groove 301a, the rotating sleeve 301 is rotated at a fixed position, and the welding head 304 is driven to rotate along the welding end at a fixed welding distance. When the rotating sleeve 301 rotates one circle, the automatic welding of the pipe body 4 is realized.

[0057] In addition, the electrical appliances in this all-round automatic welding device for water conservancy and hydropower pipelines are all electrically connected to the single-chip microcomputer in the controller through conductive wires. The controller is arranged in an easily operable position in this all-round automatic welding device for water conservancy and hydropower pipelines. At the same time, all electrical appliances in this all-round automatic welding device for water conservancy and hydropower pipelines can be obtained through private customization or market purchase, and their models are not limited here.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An all-round automatic welding device for water conservancy and hydropower pipelines, characterized by: include, A feeding mechanism (1) comprises a bottom plate (102), a conveyor (103) symmetrically distributed above the bottom plate (102), and a limit assembly arranged on the inner side of the conveyor (103), wherein the limit assembly comprises a double-headed motor (107) located below the conveyor (103), screws (107a) being fixed to two power output shafts of the double-headed motor (107), vertical plates (106) being connected to the external threads of the screws (107a) on both sides of the conveyor (103), the threads of the two screws (107a) being in opposite directions so as to enable the vertical plates (106) to move closer to or farther from each other along the axis of the screws (107a), a movable plate (105) being arranged on the inner side of the vertical plate (106) corresponding to the upper side of the conveyor (103), U-shaped plates (105a) being fixed to both ends of the movable plate (105), and a conical roller (108) being arranged on the inner side of the U-shaped plate (105a); A clamping and positioning mechanism (2) disposed between the two conveyors (103), comprising symmetrically distributed clamping components and two electric push rods (210) disposed below the two clamping components, the clamping component comprising a coaxially disposed and horizontally distributed fixed ring (205), a rotating ring (201) disposed with clearance fit outside the fixed ring (205), and clamping plates (206) distributed in a circumferential array inside the fixed ring (205), a round rod (201a) being fixed on the fixed ring (205) corresponding to the position where the clamping plate (206) is located, a connecting shaft (205c) being fixed on the rotating ring (201) corresponding to the outer side of the round rod (201a), and a through groove (206a) being provided on the clamping plate (206) corresponding to the position where the connecting shaft (205c) is located; A welding mechanism (3) disposed between two clamping assemblies, the welding mechanism (3) comprising a rotating sleeve (301), a welding head (304) on the inner side of the rotating sleeve (301), a limiting sleeve (306) provided with clearance fit on both sides of the rotating sleeve (301), and a driving motor (302) on the upper right side of the rotating sleeve (301), a gear (302b) being fixed on the power output shaft of the driving motor (302), and a tooth groove (301a) being provided at a position where the gear (302b) is located corresponding to the outer peripheral wall of the rotating sleeve (301); and, A pipe body (4) is arranged on both sides below the welding head (304).

2. The all-round automatic welding device for water conservancy and hydropower pipelines according to claim 1, characterized in that: A mounting plate (101) is provided below the conveyor (103), and slide plates (101a) having an L-shaped cross section and slidably connected to the bottom plate (102) are symmetrically fixed on both sides of the lower wall of the mounting plate (101), and a guide strip (102a) having an L-shaped cross section is fixed to the outside of the lower end of the slide plate (101a) corresponding to the upper wall of the bottom plate (102).

3. The all-round automatic welding device for water conservancy and hydropower pipelines as claimed in claim 2, characterized in that: Connecting plates (104) are symmetrically fixed on both sides of the lower wall of the conveyor (103); a damper (101c) is fixed at the middle position of the lower wall of the connecting plate (104); the lower end of the damper (101c) is fixedly connected to the mounting plate (101); an elastic member (101d) is sleeved on the outside of the damper (101c); the two ends of the elastic member (101d) are respectively in contact with the corresponding connecting plate (104) and the mounting plate (101); guide sleeves (101b) are fixed on both sides of the elastic member (101d) corresponding to the upper wall of the mounting plate (101); a guide rod (104a) is provided in the internal clearance of the guide sleeve (101b); the upper end of the guide rod (104a) is fixedly connected to the connecting plate (104).

4. The all-round automatic welding device for water conservancy and hydropower pipelines according to claim 1, characterized in that: A fixing plate (103b) is fixed to the upper wall of the double-headed motor (107), and the fixing plate (103b) is fixedly connected to the conveyor (103); A limit rod (103a) is provided in cooperation with the internal clearance of the vertical plate (106); the inner end of the limit rod (103a) is fixedly connected to the conveyor (103); a circular tube (110) is fixedly provided on the outer wall of the movable plate (105); a guide block (109) is provided in cooperation with the internal clearance of the circular tube (110); the guide block (109) is fixedly connected to the vertical plate (106); and a pressure sensor 1 (111) is fixedly provided between the guide block (109) and the movable plate (105); A rotating rod (108a) is fixed at the middle position of both ends of the tapered roller (108), and the rotating rod (108a) is rotatably connected to the U-shaped plate (105a) via a bearing. The diameter of the upper wall of the tapered roller (108) is greater than the diameter of the lower wall of the tapered roller (108).

5. The all-round automatic welding device for water conservancy and hydropower pipelines as claimed in claim 2, characterized in that: A pressure sensor 2 (210a) is fixed to the telescopic end of the second electric push rod (210), a rotating block (209a) is fixed to the rear wall of the second pressure sensor (210a), a rotating column (209) is provided in a clearance fit inside the rotating block (209a), rotating plates (209b) are fixed to both ends of the rotating column (209), the rotating plates (209b) are fixedly connected to the corresponding rotating ring (201), an end plate (212) is fixed to the front end of the second electric push rod (210), connecting rods (212a) are fixed to both side walls of the end plate (212), and a U-shaped frame (211) fixedly connected to the bottom plate (102) is provided in a clearance fit outside the connecting rod (212a).

6. The all-round automatic welding device for water conservancy and hydropower pipelines as claimed in claim 5, characterized in that: A support plate (208) is fixed to the lower end of the inner side wall of the fixed ring (205), an electric push rod (207) is fixed between the two support plates (208) on the same side, the support plate (208) on the side close to the rotating column (209) is fixedly connected to the bottom plate (102), and a limit plate (208a) slidably connected to the bottom plate (102) is fixed to the bottom of the support plate (208) on the side away from the rotating column (209), and the limit plate (208a) is located on the inner side of the two guide strips (102a).

7. The all-round automatic welding device for water conservancy and hydropower pipelines as claimed in claim 6, characterized in that: A photoelectric sensor (205a) is fixed on the inner side wall of the fixed ring (205) close to the welding mechanism (3); a baffle (204) is fixed on the outer end of the connecting shaft (205c); a convex ring (205b) is fixed on the outer peripheral wall of the fixed ring (205); a groove (201b) is provided at the position of the convex ring (205b) corresponding to the inner peripheral wall of the rotating ring (201); and the convex ring (205b) is located inside the groove (201b); A telescopic sleeve (203) is fixed to the side wall of the fixing ring (205) close to the photoelectric sensor (205a); a telescopic rod (202) is provided in a clearance-matched manner inside the telescopic sleeve (203); the telescopic rod (202) is fixedly connected to the corresponding fixing ring (205); a protrusion (202a) is fixed to the outer peripheral wall of the telescopic rod (202); and a limiting groove (203a) is axially provided on the outer peripheral wall of the telescopic sleeve (203) at the position where the protrusion (202a) is located, corresponding to the outer peripheral wall of the telescopic sleeve (203).

8. The all-round automatic welding device for water conservancy and hydropower pipelines according to claim 1, characterized in that: A transverse plate (303a) is fixed to the upper wall of the welding head (304), a micro switch (305) is fixed to one side of the welding head (304) corresponding to the lower wall of the transverse plate (303a), an electric push rod three (303) is fixed to the upper wall of the transverse plate (303a), and the outer end of the electric push rod three (303) is fixedly connected to the rotating sleeve (301).

9. The all-round automatic welding device for water conservancy and hydropower pipelines as claimed in claim 8, characterized in that: A threading hole (301c) is provided on the rotating sleeve (301) corresponding to the position of the welding head (304); annular plates (301b) are symmetrically fixed on both sides of the threading hole (301c) corresponding to the outer peripheral wall of the rotating sleeve (301); supporting legs (306a) are fixed on both front and rear sides of the limiting sleeve (306); the lower ends of the supporting legs (306a) are fixedly connected to the bottom plate (102); a side plate (302a) is fixed to the right wall of the driving motor (302); and the side plate (302a) is fixedly connected to the corresponding fixing ring (205).

10. An all-round automated welding process for water conservancy and hydropower pipelines, characterized in that: The all-round automatic welding device for water conservancy and hydropower pipelines described in claim 9 performs welding operations according to the following steps: S1. When the welding ends of the two pipe bodies (4) move to the lower end of the welding head (304) and are in a fixed state, the controller controls the electric push rod three (303) to work, and the electric push rod three (303) drives the welding head (304) to move toward the welding end until the contact in the micro switch (305) contacts the pipe body (4), and the controller controls the electric push rod three (303) to stop working; S2, the welding head (304) is then operated, and at the same time, the controller controls the driving motor (302) to operate synchronously. When the driving motor (302) is in operation, it drives the gear (302b) to rotate, and with the cooperation of the tooth groove (301a), the rotating sleeve (301) is rotated at a fixed position, driving the welding head (304) to rotate along the welding end at a fixed welding distance. When the rotating sleeve (301) rotates one circle, the automatic welding of the pipeline body (4) is achieved.

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