Fixing device for welding of metal cable protection pipe

Abstract

The invention discloses a fixing device for welding of metal cable protection tubes, and relates to the technical field of welding supports, the fixing device comprises a tail pulling limiting assembly, the tail pulling limiting assembly is used for limiting and straightening the tail ends of the two metal cable protection tubes during welding, and the tail pulling limiting assembly comprises an equipment bottom plate; the equipment bottom plate is arranged at the bottoms of the two metal cable protection pipes; under an existing single-end supporting structure, the tail end of a metal cable protection pipe lacks constraint and is extremely prone to shaking due to external force or dead weight, then the axes of two welded metal cable protection pipes are deviated, a tail pulling limiting assembly is additionally provided with a fixing device at the tail end, the front end and the rear end are tensioned through a steel wire rope, and a bidirectional constraint system is formed; the influence of external force on the tail end of the metal cable protection pipe can be effectively counteracted, the metal cable protection pipe is forcibly straightened, it is ensured that the axes of the two welded metal cable protection pipes are kept consistent, and the problems that the tail end of the metal cable protection pipe shakes and the axes deviate in the semi-automatic electric arc welding process are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding brackets, and particularly to a fixing device for welding metal cable protection pipes. Background Technique

[0002] A metal cable protection pipe is a kind of pipe used to protect cables. It usually has characteristics such as corrosion resistance and compressive resistance, and can effectively protect the cables from external factors. In actual cable laying projects, due to the long length of the cable line, while the length of a single metal cable protection pipe is usually limited. When the length of the cable to be protected exceeds the length of a single protection pipe, multiple protection pipes need to be connected to achieve continuous protection of the entire cable line. By connecting through the semi-automatic arc welding method, it can meet the requirements of long-distance cable protection while ensuring the connection strength and tightness.

[0003] Most existing welding equipment adopts a single-end support structure, with a fixed bracket only set at the front end of the metal cable protection pipe, and its movement is restricted by means of bolt fastening or clamp restraint. This design makes the tail end of the protection pipe in an unrestrained state, and it is easy to cause shaking and axis deviation due to external forces (such as construction collision, wind force) or its own weight. After welding, the tail end of the protection pipe is prone to shaking due to gravity or external forces. Especially during the welding operation, the unstable tail end will cause quality defects such as edge misalignment and pores in the weld, seriously affecting the connection strength.

[0004] In addition, the bottom plates of the fixing devices used in conventional semi-automatic arc welding equipment generally adopt a flat design, and this structure has extremely poor adaptability in actual engineering scenarios. When the device is installed on uneven ground, in a tunnel or on a sloping working surface, the bottom plate cannot be completely attached to the foundation, and local suspension is very likely to occur. During the welding operation, due to the local suspension of the bottom plate, the stability of the entire fixing device will be greatly reduced, and it is very easy for the fixing device to shake or displace, which changes the position of the originally fixed metal cable protection pipe, increases the difficulty of welding alignment, and reduces the welding efficiency.

[0005] Therefore, a fixing device for welding metal cable protection pipes is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a fixing device for welding metal cable protection pipes to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present invention provides the following technical solution: A fixing device for welding metal cable protection pipes, including a tail pulling and limiting component. The tail pulling and limiting component is used to limit and straighten the tails of two metal cable protection pipes during welding. The tail pulling and limiting component includes an equipment base plate, which is arranged at the bottom of the two metal cable protection pipes. Two equipment support plates are symmetrically and fixedly connected to the top surface of the equipment base plate. A clamp one is installed at the top of each of the two equipment support plates. A plurality of extension plates are fixedly connected in a ring shape on the mutually remote sides of the two clamps one. A support rod one is fixedly connected to each extension plate. The end of the support rod one away from the extension plate is rotatably connected to a mandrel. A steel wire rope is fixedly connected to the mandrel. One end of the mandrel passes through the support rod one, and the end of the mandrel passing through the support rod one is fixedly connected to a bevel gear one. A support rod two is fixedly connected to each extension plate. The end of the support rod two away from the extension plate is rotatably connected to a rotating shaft. A bevel gear two and a top gear are respectively fixedly connected to the two ends of the rotating shaft.

[0008] Further, a gear ring is commonly engaged with a plurality of top gears on the same extension plate. A servo motor is fixedly connected to the bottom of the mutually remote sides of the two equipment support plates. The servo motor is divided into a fixed end and an output shaft. A bottom gear is fixedly connected to the output shaft end of the servo motor. A side plate is fixedly connected to the side of each extension plate away from the corresponding clamp one. A magnet one is fixedly connected to the end of each of the plurality of side plates away from the corresponding extension plate. The ends of the plurality of steel wire ropes on the same side away from the mandrel are commonly fixedly connected to a clamp two. A plurality of magnet twos are fixedly connected in an annular array on the side of the two clamps two close to the corresponding extension plate.

[0009] Further, a terrain adaptation component is arranged on the equipment base plate. The terrain adaptation component includes an L-shaped sliding plate, which is slidably connected to the upper surface of the equipment base plate. A pin is inserted into the L-shaped sliding plate. A grid plate is fixedly connected to the bottom end of the L-shaped sliding plate. A plurality of square tubes are fixedly connected to the ground of the equipment base plate. A sliding column is slidably connected to each of the plurality of square tubes. A spring is arranged in each of the plurality of square tubes.

[0010] Further, the steel wire rope is wound spirally around the mandrel, and the bevel gear one and the bevel gear two are meshed with each other.

[0011] Further, the end of the steel wire rope away from the mandrel passes through the corresponding side plate and the magnet one, and the steel wire rope is slidably connected to the side plate and the magnet one. The top gear is meshed with the inner ring of the gear ring, and the bottom gear is meshed with the outer ring of the gear ring.

[0012] Further, the servo motor is electrically connected to a remote control, and the gear ring is slidably connected to the equipment support plate through a connecting rod.

[0013] Further, the mutually approaching surfaces of the magnet one and the magnet two have opposite magnetic polarities.

[0014] Further, a slot adapted for plugging and connecting with the bolt is formed on the equipment bottom plate.

[0015] Further, the grid plate is located directly below the equipment bottom plate, and the grid plate is arranged in a crisscross mesh shape, that is, there are multiple gaps on the grid plate.

[0016] Further, multiple square tubes correspond to multiple gaps of the grid plate, the outer surfaces of the sliding columns and the grid plate are both arranged as rough anti-slip surfaces, and two ends of the spring are respectively fixedly connected to the lower surface of the equipment bottom plate and the upper surface of the sliding column.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: Under the existing single-end support structure, the tail end of the metal cable protection pipe lacks restraint and is extremely easy to shake due to external force or its own weight, which will further cause the axis deviation of the two welded metal cable protection pipes. The tail-pulling limit component adds a fixing device at the tail end and uses a steel wire rope to tighten the front and rear ends, forming a two-way restraint system, which can effectively offset the influence of external force on the tail end of the metal cable protection pipe and forcibly straighten the metal cable protection pipe, ensuring that the axes of the two welded metal cable protection pipes are kept consistent, and avoiding the problems of shaking and axis deviation at the tail end of the metal cable protection pipe during semi-automatic arc welding.

[0018] The tail-pulling limit component provides stable support for the metal cable protection pipe during the welding process, effectively reducing the displacement of the tail end of the metal cable protection pipe, so as to ensure the fixed position of the metal cable protection pipe during welding, avoid welding defects caused by the shaking of the metal cable protection pipe, and improve the quality and connection strength of semi-automatic arc welding.

[0019] The terrain adaptation component can place the equipment bottom plate on the uneven ground base during operation, so that the welding fixing device no longer depends on the flat foundation conditions, expands the application scenario of the metal cable protection pipe welding construction, and reduces the welding difficulty caused by the site condition limitations.

[0020] At the same time, the stable welding fixing device reduces the change in the position of the metal cable protection pipe caused by the terrain condition factors, thereby increasing the welding adjustment time. It can complete the welding operation more efficiently. At the same time, the stable welding environment fixation enables the welds of the metal cable protection pipe to be accurately butt-jointed, reducing welding defects such as misalignment and porosity, and improving the welding quality. Description of the Drawings

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 It is a sectional view of structures such as the equipment bottom plate and the equipment support plate of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in; Figure 4For the present invention Figure 2 The enlarged schematic diagram at position B in the present invention; Figure 5 For the present invention Figure 2 The enlarged schematic diagram at position C in the present invention; Figure 6 The sectional schematic diagram of the equipment bottom plate, L-shaped slide plate and other structures of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram at position D in the present invention; Figure 8 For the present invention Figure 6 The enlarged schematic diagram at position E in the present invention; Figure 9 The position schematic diagram of the bottom gear, gear ring and other structures of the present invention; Figure 10 For the present invention Figure 9 The enlarged schematic diagram at position F in the present invention; Figure 11 The exploded schematic diagram of the L-shaped slide plate, pin, grid plate and other structures of the present invention; Figure 12 The exploded schematic diagram of the square tube, sliding column, spring and other structures of the present invention.

[0022] In the figure: 1. Metal cable protection pipe; 21. Equipment bottom plate; 22. Equipment support plate; 23. Fixture 1; 24. Extension plate; 25. Support rod 1; 26. Mandrel; 27. Steel wire rope; 28. Bevel gear 1; 29. Support rod 2; 210. Rotating shaft; 211. Bevel gear 2; 212. Top gear; 213. Gear ring; 214. Servo motor; 215. Bottom gear; 216. Side plate; 217. Magnet 1; 218. Fixture 2; 219. Magnet 2; 31. L-shaped slide plate; 32. Pin; 33. Grid plate; 34. Square tube; 35. Sliding column; 36. Spring. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The embodiments provided by the present invention: Embodiment 1: Please refer to Figures 1 to 4 and Figures 6 to 10As shown in the figure, a fixing device for welding metal cable protection pipes includes a tail-pulling and limiting component. The tail-pulling and limiting component is used to limit and straighten the tails of two metal cable protection pipes 1 during welding. The tail-pulling and limiting component includes an equipment base plate 21, which is arranged at the bottom of the two metal cable protection pipes 1. Two equipment support plates 22 are symmetrically and fixedly connected to the top surface of the equipment base plate 21. A clamp 23 is installed at the top of each of the two equipment support plates 22. A plurality of extension plates 24 are fixedly connected in a ring shape on the side of each of the two clamps 23 away from each other. A support rod 25 is fixedly connected to each extension plate 24. One end of the support rod 25 away from the extension plate 24 is rotatably connected to a spindle 26. A steel wire rope 27 is fixedly connected to the spindle 26. One end of the spindle 26 passes through the support rod 25, and a bevel gear 28 is fixedly connected to the end of the spindle 26 passing through the support rod 25. A support rod 29 is fixedly connected to each extension plate 24. One end of the support rod 29 away from the extension plate 24 is rotatably connected to a rotating shaft 210. A bevel gear 211 and a top gear 212 are respectively fixedly connected to the two ends of the rotating shaft 210. A gear ring 213 is meshed with a plurality of top gears 212 on the same extension plate 24. A servo motor 214 is fixedly connected to the bottom of the side of each of the two equipment support plates 22 away from each other. The servo motor 214 is divided into a fixed end and an output shaft. A bottom gear 215 is fixedly connected to the output shaft end of the servo motor 214. A side plate 216 is fixedly connected to the side of each extension plate 24 away from the corresponding clamp 23. A magnet 217 is fixedly connected to one end of each of the plurality of side plates 216 away from the corresponding extension plate 24. One end of the plurality of steel wire ropes 27 on the same side away from the spindle 26 is fixedly connected to a clamp 218. A plurality of magnets 219 are fixedly connected in a ring array on the side of each of the two clamps 218 close to the corresponding extension plate 24.

[0025] Among them: The clamp 23 and the clamp 218 are both existing known technologies, and the clamp 23 and the clamp 218 are exactly the same. Its technical features are: It has an annular hollow shell, and a plurality of bolts are threadedly connected in a ring array on the annular hollow shell. One end of the bolt located inside the annular hollow shell is fixedly connected with a rubber anti-slip pad. The part of the bolt passing through the outside of the annular hollow shell is threadedly tightened with the annular hollow shell by a nut, so as to realize the fixing and movement of the position of the bolt and the rubber anti-slip pad.

[0026] It should be added that: in actual use, clamp 1 23 and clamp 2 218 need to fix and limit the metal cable protection tube 1, and the steps of use are: insert the metal cable protection tube 1 into the annular hollow shell. After completion, the user adjusts the positions of multiple bolts so that the multiple rubber anti-slip pads are in contact with the outer wall of the metal cable protection tube 1. Then the user tightens the bolts through the nut threads and installs and limits the multiple bolts on the annular hollow shell. At this time, the outer wall of the metal cable protection tube 1 is contacted by multiple bolts through the rubber anti-slip pads, and the metal cable protection tube 1 cannot move in the annular hollow shell. That is, the fixing and limiting of the metal cable protection tube 1 is completed at this time, and the adjustment distance of the bolts and nuts can adapt to metal cable protection tubes 1 of different diameters.

[0027] It should be added that: when the metal cable protection tube 1 needs to be removed, the user can release the fixed limit of the metal cable protection tube 1 by loosening the bolt through the nut thread. Clamp 1 23 is used to fix the end of the metal cable protection tube 1 that needs to be welded, and clamp 2 218 is used to fix the end of the metal cable protection tube 1 that does not need to be welded, i.e., the tail end.

[0028] It should be added that: when welding is actually required, the user can align and fit the ends of the two metal cable protection tubes 1 to be welded through the above steps, and at the same time limit and fix the two metal cable protection tubes 1.

[0029] Among them: Reference Figure 3 , Figure 10 As shown, the steel wire rope 27 is spirally wound on the core shaft 26, and one end of the steel wire rope 27 away from the core shaft 26 passes through the corresponding side plate 216 and magnet 1 217.

[0030] Among them: Reference Figure 9 and Figure 10 As shown, bevel gear 1 28 and bevel gear 2 211 are meshed with each other, and top gear 212 and the inner ring of gear ring 213 are meshed with each other, and the function is as follows: the rotation of gear ring 213 can drive top gear 212 to rotate, and when top gear 212 rotates, bevel gear 1 28 can be driven to rotate through rotating shaft 210 and bevel gear 2 211. When bevel gear 1 28 rotates, it can drive spindle 26 to rotate, that is, the rotation of gear ring 213 can drive spindle 26 to rotate, so as to realize the rotation of spindle 26 to control the winding and releasing of wire rope 27.

[0031] Among them: Reference Figure 9As shown, the bottom gear 215 meshes with the outer ring of the gear ring 213. That is, when the servo motor 214 is started, the rotation of its output shaft can drive the bottom gear 215 to rotate synchronously. As known from the above text, when the servo motor 214 is started, it can control the wire winding and direction of the wire rope 27. Multiple top gears 212 provided on the same outer extension plate 24 all mesh with the same gear ring 213. That is, when the servo motor 214 is started, it can simultaneously control the wire winding and unwinding of all the wire ropes 27 on the same outer extension plate 24, and the servo motor 214 has the characteristic of controlling the wire winding and unwinding of all the wire ropes 27 at the same speed.

[0032] It should be noted that: an electromagnetic brake (not shown) is provided on the servo motor 214. The electromagnetic brake is used to lock the output shaft of the servo motor 214 when the servo motor 214 is not started, to prevent the output shaft of the servo motor 214 from deflecting under the action of an external force. The servo motor 214 is electrically connected to the remote control.

[0033] It should be supplemented that: referring to Figure 3 As shown, an annular groove is provided on the gear ring 213. A connecting rod is fixedly connected to the equipment support plate 22, and the connecting rod is slidably connected to the annular groove on the gear ring 213 to ensure the stability of the rotation of the gear ring 213.

[0034] Among them: the surfaces of the first magnet 217 and the second magnet 219 facing each other have opposite magnetic polarities. The function is that the second fixture 218 can be adsorbed and fixed on the outer extension plate 24 through the magnetic attraction of the first magnet 217 and the second magnet 219. The purpose is to store the second fixture 218 when the metal cable protection pipe 1 is not welded.

[0035] In summary, when the tail pulling and limiting component is in the initial state, that is, when the metal cable protection pipe 1 is not welded, the states of the internal structures of the tail pulling and limiting component are as follows: The mandrel 26 completely winds up the wire rope 27, and the second fixture 218 can be adsorbed and fixed on the outer extension plate 24 through the magnetic attraction of the first magnet 217 and the second magnet 219.

[0036] When the tail-pulling limiting component is operating, that is, when welding the metal cable protection pipe 1, at this time, the user adjusts the fixture one 23 and the fixture two 218 through the above steps, inserts the two metal cable protection pipes 1 into the two fixture ones 23 and the two fixture twos 218 respectively, and fixes the metal cable protection pipe 1 by adjusting the two fixture ones 23, without adjusting the fixture two 218. At this time, the welding ends of the two metal cable protection pipes 1 are aligned and in contact. After completion, the user starts the servo motor 214 through the remote control, so that the output shaft of the servo motor 214 rotates, thereby driving the rotation of multiple mandrels 26. During the rotation of the mandrels 26, the steel wire ropes 27 are paid out. At this time, the user manually moves the fixture two 218 in the direction of the tail end of the metal cable protection pipe 1, that is, when the fixture two 218 remains sleeved outside the metal cable protection pipe 1, it moves in the direction of the tail end along the horizontal axial direction of the metal cable protection pipe 1. Along with the movement of the fixture two 218, the fixture two 218 drives the multiple steel wire ropes 27 on the same side to move synchronously. When the fixture two 218 moves to the tail end of the metal cable protection pipe 1, at this time, the user adjusts the fixture two 218 to fix it at the tail end of the metal cable protection pipe 1. At this time, the multiple steel wire ropes 27 connected between the fixture two 218 and the extension plate 24 are in a slack state with the wire-paying operation of the servo motor 214. At this time, the user controls the output shaft of the servo motor 214 to rotate reversely through the remote control. Then, the rotation of the multiple mandrels 26 drives the corresponding steel wire ropes 27 to be wound up, that is, the multiple steel wire ropes 27 connected between the fixture two 218 and the extension plate 24 gradually become taut with the reverse rotation of the output shaft of the servo motor 214. Along with the tautening of the multiple steel wire ropes 27, the multiple steel wire ropes 27 drive the metal cable protection pipe 1 to be gradually straightened through the fixture two 218, so that the axes of both ends of the metal cable protection pipe 1 are consistent.

[0037] In summary, the following beneficial effects can be produced when the tail-pulling limiting component is operating: Under the existing single-end support structure, the tail end of the metal cable protection pipe 1 lacks restraint and is extremely prone to shaking due to external force or its own weight, which in turn causes the axes of the two welded metal cable protection pipes 1 to deviate. The tail-pulling limiting component adds a fixing device at the tail end and uses the steel wire ropes 27 to tighten the front and rear ends, forming a two-way restraint system, which can effectively offset the influence of external force on the tail end of the metal cable protection pipe 1 and forcefully straighten the metal cable protection pipe 1 to ensure that the axes of the two welded metal cable protection pipes 1 are kept consistent, fundamentally solving the problems of shaking at the tail end and axis deviation of the metal cable protection pipe 1.

[0038] The swaying of the tail end of the metal cable protection pipe 1 will directly affect the quality of the welding operation, resulting in defects such as misalignment and porosity in the weld, reducing the connection strength. The tail-pulling limit component provides stable support for the metal cable protection pipe 1 during the welding process, effectively reducing the displacement of the tail end of the metal cable protection pipe 1, thereby ensuring that the position of the metal cable protection pipe 1 is fixed during welding, avoiding weld defects caused by the swaying of the metal cable protection pipe 1, and improving the quality and connection strength of semi-automatic arc welding.

[0039] Embodiment 2: Refer to Figure 1 , Figure 5 and Figure 6 , Figure 8 , Figure 11 , Figure 12 As shown, a terrain adaptation component is provided on the equipment base plate 21. The terrain adaptation component includes an L-shaped slide plate 31. The L-shaped slide plate 31 is slidably connected to the upper surface of the equipment base plate 21. A pin 32 is inserted into the L-shaped slide plate 31. The bottom end of the L-shaped slide plate 31 is fixedly connected to a grid plate 33. A plurality of square tubes 34 are fixedly connected to the ground of the equipment base plate 21. A slide column 35 is slidably connected to each of the plurality of square tubes 34. A spring 36 is provided inside each of the plurality of square tubes 34.

[0040] Among them: Refer to Figure 8 and Figure 11 As shown, a slot adapted to the insertion of the pin 32 is opened on the equipment base plate 21. The function is: when the pin 32 is inserted into the L-shaped slide plate 31 and the slot on the equipment base plate 21 at the same time, the L-shaped slide plate 31 is limited by the pin 32 and cannot move horizontally. When the pin 32 is pulled out from the slot on the equipment base plate 21 and the pin 32, at this time, the L-shaped slide plate 31 can slide on the equipment base plate 21, thereby releasing the limited state of the L-shaped slide plate 31.

[0041] Among them: The grid plate 33 is located directly below the equipment base plate 21, and the grid plate 33 is arranged in a criss-cross network, that is, there are a plurality of gaps on the grid plate 33.

[0042] It should be added that: Refer to Figure 8 and Figure 11As shown, multiple square tubes 34 correspond to multiple gaps of the mesh plate 33, and the size of the sliding column 35 on a single square tube 34 is smaller than the size of the corresponding gap of the mesh plate 33, that is, the gap of the mesh plate 33 is larger than the sliding column 35, so that the mesh plate 33 can move a short distance while being sleeved on the outer surface of the sliding column 35, and the outer surfaces of the sliding column 35 and the mesh plate 33 are both set to rough anti-slip surfaces. When the sliding column 35 and the rough anti-slip surfaces of the mesh plate 33 fit and contact each other, the sliding column 35 remains in a state of being unable to move in the vertical direction under the action of friction. Combined with the above-mentioned supplement to the L-shaped slide plate 31 and the pin 32, it can be seen that when the pin 32 is inserted into the slot on the L-shaped slide plate 31 and the equipment base plate 21, the mesh plate 33 and the outer surfaces of the multiple sliding columns 35 are all in contact and fit, and then the multiple sliding columns 35 are restricted from moving.

[0043] Among them: Reference Figure 8 As shown, two ends of the spring 36 are fixedly connected to the lower surface of the equipment bottom plate 21 and the upper surface of the sliding column 35 respectively.

[0044] When the terrain adaptation component is running and the metal cable protection tube 1 needs to be welded, the user pulls out the latch 32 to release the restricted movement of the L-shaped slide plate 31, and moves the L-shaped slide plate 31 to the outside of the equipment base plate 21, so that the L-shaped slide plate 31 slides on the equipment base plate 21 until the grid plate 33 does not fit the slide column 35. After completion, the user places the equipment base plate 21 on the ground base layer that needs to be welded. Since there are many uneven ground base layers in actual engineering scenes, when multiple slide columns 35 contact the uneven ground base layer, the ground use of multiple slide columns 35 will produce a corresponding height difference and elastically compress the corresponding spring 36. At this time, the ground of multiple slide columns 35 The user pushes the L-shaped slide plate 31 toward the device base plate 21 and inserts the pin 32 into the slots of the L-shaped slide plate 31 and the device base plate 21 at the same time. At this time, the rough anti-slip surface of the mesh plate 33 and the rough anti-slip surfaces of the multiple slide posts 35 are in contact with each other, so that the position of the slide posts 35 inside the square tube 34 is fixed and restricted. At the same time, as the L-shaped slide plate 31 is fixed and limited by the pin 32, the position of the mesh plate 33 is restricted. In summary, at this time, the device base plate 21 is fixed and restricted by the multiple slide posts 35 at the bottom in a state of being in contact with the uneven ground base layer, that is, the device base plate 21 is fixed and restrictedly placed on the uneven ground base layer.

[0045] In summary, conventional flat base plates are difficult to fit completely onto uneven and sloping ground, and are prone to partial suspension. The terrain adaptation component can place the equipment base plate 21 on the uneven ground for use, so that the welding fixture no longer relies on flat foundation conditions, greatly expanding the application scenarios of the welding construction of the metal cable protection tube 1 and reducing the welding difficulty caused by site conditions.

[0046] Meanwhile, the stable welding fixing device reduces the change in the position of the metal cable protection pipe 1 caused by topographical conditions, thereby increasing the welding adjustment time. It can complete the welding operation more efficiently. At the same time, the stable welding environment fixing enables the welds of the metal cable protection pipe 1 to be accurately butt-jointed, reducing welding defects such as misalignment and porosity, and improving the welding quality.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for welding a metal cable protection pipe, characterized in that: It includes a tail-pulling limiting component which is used to limit and straighten the tails of two metal cable protection pipes (1) during welding. The tail-pulling limiting component includes an equipment bottom plate (21) which is arranged at the bottom of the two metal cable protection pipes (1). Two equipment support plates (22) are symmetrically and fixedly connected to the top surface of the equipment bottom plate (21). A fixture one (23) is installed at the top end of each of the two equipment support plates (22). A plurality of extension plates (24) are fixedly connected in a circular shape on the side of each of the two fixtures one (23) away from each other. A support rod one (25) is fixedly connected to each of the extension plates (24). One end of the support rod one (25) away from the extension plate (24) is rotatably connected to a mandrel (26). A steel wire rope (27) is fixedly connected to the mandrel (26). One end of the mandrel (26) passes through the support rod one (25), and a bevel gear one (28) is fixedly connected to the end of the mandrel (26) passing through the support rod one (25). A support rod two (29) is fixedly connected to each of the extension plates (24). One end of the support rod two (29) away from the extension plate (24) is rotatably connected to a rotating shaft (210). A bevel gear two (211) and a top gear (212) are respectively fixedly connected to the two ends of the rotating shaft (210).

2. The fixing device for welding a metal cable protection pipe according to claim 1, characterized in that: A gear ring (213) is commonly engaged with a plurality of top gears (212) on the same extension plate (24). A servo motor (214) is fixedly connected to the bottom of the side of each of the two equipment support plates (22) away from each other. The servo motor (214) is divided into a fixed end and an output shaft. A bottom gear (215) is fixedly connected to the output shaft end of the servo motor (214). A side plate (216) is fixedly connected to the side of each of the extension plates (24) away from the corresponding fixture one (23). A magnet one (217) is fixedly connected to one end of each of the plurality of side plates (216) away from the corresponding extension plate (24). One end of the plurality of steel wire ropes (27) on the same side away from the mandrel (26) is commonly fixedly connected to a fixture two (218). A plurality of magnets two (219) are fixedly connected in a circular array on the side of each of the two fixtures two (218) close to the corresponding extension plate (24).

3. The fixing device for welding a metal cable protection pipe according to claim 1, wherein: A terrain adaptation component is arranged on the equipment bottom plate (21). The terrain adaptation component includes an L-shaped sliding plate (31) which is slidably connected to the upper surface of the equipment bottom plate (21). A pin (32) is inserted into the L-shaped sliding plate (31). A grid plate (33) is fixedly connected to the bottom end of the L-shaped sliding plate (31). A plurality of square pipes (34) are fixedly connected to the ground of the equipment bottom plate (21). A sliding column (35) is slidably connected in each of the plurality of square pipes (34). A spring (36) is arranged in each of the plurality of square pipes (34).

4. The fixing device for welding a metal cable protection pipe according to claim 1, characterized in that: The steel wire rope (27) is spirally wound around the mandrel (26), and the bevel gear one (28) and the bevel gear two (211) are meshed with each other.

5. The fixing device for welding a metal cable protection pipe according to claim 2, characterized in that: One end of the wire rope (27) far from the mandrel (26) passes through the corresponding side plate (216) and magnet one (217), and the wire rope (27) is slidably connected to the side plate (216) and magnet one (217). The top gear (212) meshes with the inner ring of the gear ring (213), and the bottom gear (215) meshes with the outer ring of the gear ring (213).

6. The fixing device for welding a metal cable protection pipe according to claim 2, characterized in that: The servo motor (214) is electrically connected to the remote control, and the gear ring (213) is slidably connected to the equipment support plate (22) through a connecting rod.

7. The fixing device for welding a metal cable protection pipe according to claim 2, characterized in that: The surfaces of magnet one (217) and magnet two (219) facing each other are magnetically opposite.

8. The fixing device for welding a metal cable protection pipe according to claim 3, wherein: Slots adapted for plugging the pins (32) are provided on the equipment bottom plate (21).

9. The fixing device for welding a metal cable protection pipe according to claim 3, characterized in that: The grid plate (33) is located directly below the equipment bottom plate (21), and the grid plate (33) is arranged in a crisscross mesh, that is, there are multiple gaps on the grid plate (33).

10. The fixing device for welding a metal cable protection pipe according to claim 3, characterized in that: Multiple square tubes (34) correspond to the multiple gaps of the grid plate (33). The outer surfaces of the sliding columns (35) and the grid plate (33) are both set as rough anti-slip surfaces. Both ends of the spring (36) are fixedly connected to the lower surface of the equipment bottom plate (21) and the upper surface of the sliding column (35).

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