CN105965199A - Alignment device for pipeline welding - Google Patents

Alignment device for pipeline welding Download PDF

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Publication number
CN105965199A
CN105965199A CN201610320383.XA CN201610320383A CN105965199A CN 105965199 A CN105965199 A CN 105965199A CN 201610320383 A CN201610320383 A CN 201610320383A CN 105965199 A CN105965199 A CN 105965199A
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CN
China
Prior art keywords
pipeline
ejection pin
angle
line
spiral ejection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610320383.XA
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Chinese (zh)
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CN105965199B (en
Inventor
张勇
张万利
郝进全
朱琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Training Center of State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Training Center of State Grid Jibei Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Training Center of State Grid Jibei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610320383.XA priority Critical patent/CN105965199B/en
Publication of CN105965199A publication Critical patent/CN105965199A/en
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Publication of CN105965199B publication Critical patent/CN105965199B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

The invention provides an alignment device for pipeline welding. The alignment device for pipeline welding comprises two aligner racks, an angular pipeline support and two spiral ejector rods. Each aligner rack is in a handle shape and is provided with a transverse flat upper end, a vertical middle portion and a lower end, wherein the included angle between the lower end and the vertical middle portion is 135 degrees. The angular pipeline support is made of a V-shaped metal material, wherein the included angle between the two planes of the V-shaped metal material is 90 degrees. The angular pipeline support is fixed to the oblique surfaces of the inner sides of the lower ends of the two aligner racks. The two aligner racks are located at the two ends of the angular pipeline support correspondingly. Threaded through holes are formed in the transverse flat upper ends of the aligner racks. The central axes of the threaded through holes are perpendicular to the regression line of the angular pipeline support, and the central axes of the threaded through holes and the regression line of the angular pipeline support are located in the same plane. The spiral ejector rods are rods provided with threads, and the lower ends of the spiral ejector rods penetrate through the threaded through holes in the aligner racks and can be screwed or unscrewed through the threaded through holes. By the adoption of the alignment device for pipeline welding, the end openings of two pipelines can be aligned rapidly, and welding requirements are met.

Description

Pipeline welding contra-aperture device
Technical field
The present invention relates to mechanical erection and maintenance field, particularly for the pipeline weldering of tubular metal thing welding Connect contra-aperture device.
Background technology
During many engineering construction installation and maintenance, usually can relate to two caliber same pipeline Butt welding.In order to ensure that the axiality of pipeline (particularly long-distance transmission pipeline) is (i.e. in butt welding It is mutually aligned degree) compliant requirement, it is to avoid occur that the defect such as misalignment or pipeline Origuchi causes additional answering Power thus affect the tubing life-span, generally use pipeline welding line-up clamp to be aligned by the mouth of pipe of two pipelines.
But, structure that existing pipeline welding line-up clamp has is complicated, is difficult to operation, have at butt welding Time pipeline welding line-up clamp have that clamping dynamics is big not, reliability and stability are strong, persistency is poor or Hindering the problems such as welding, workmen has to make simple frock clamping by oneself at the construction field (site) sometimes, ensures The enforcement of butt welding, but can not effectively make the mouth of pipe align, and, tube pitch little particularly with caliber is relatively The butt welding work of little large area bank of tubes, its pipeline butt quantity is many, and workload is big, and work space is little, By a definite limitation when current pipeline welding line-up clamp uses in the space that pipeline gap is less, it is easier to Cause various butt welding defect.
For solving problem above, the welding job for pipeline or bank of tubes provides convenience, it is desirable to provide a kind of Meet the pipeline welding contra-aperture device of the improvement that job site is actually needed.
Summary of the invention
For solving the technical problem of existing existence, the present invention provides a kind of pipeline welding contra-aperture device, and it can make Two pipe end rapid alignments being welded, reach welding requirement.
For reaching above-mentioned purpose, the technical scheme of the embodiment of the present invention is achieved in that
The pipeline welding contra-aperture device of the present invention includes two line-up clamp frames, angle-style conduit saddle and two spiral shells Rotation push rod.Wherein, described line-up clamp frame is handle-type, have horizontal flat upper end, vertical middle part, And become the bottom at 135 degree of angles, described angle-style conduit saddle to be become the V of 90 degree by two planes with vertical middle part Type metal material is made, described angle-style conduit saddle with its V-type opening towards said two line-up clamp frame On the medial slope of the bottom that the mode of upper end is fixed on said two line-up clamp frame, said two pair Mouthpart frame is the most spaced a predetermined distance.The horizontal flat upper end of described line-up clamp frame offers Tapped through hole, the central axis upright of this tapped through hole in angle-style conduit saddle crestal line and with the crestal line of angle-style conduit saddle In a plane.Described spiral ejection pin is for having threaded bar, and its lower end passes in described line-up clamp frame Tapped through hole and can be by described tapped through hole precession or back-out.
Alternatively, the pipeline welding contra-aperture device of the present invention also includes being fixed on and said two line-up clamp frame The plane of angle-style conduit saddle that is fixed together of the medial slope of bottom below and at two line-up clamp machines Reinforcement gusset between frame, the bottom of said two line-up clamp frame is fixed together by it.
Alternatively, described line-up clamp frame, angle steel conduit saddle and reinforcement gusset are made by metal material, and It is welded into an entirety.Alternatively, described angle-style conduit saddle is made by angle steel.
Alternatively, the position of the middle lower portion of described angle-style conduit saddle offers a window, in order in welding Time can be pointed to the part to be welded of the position between bottom and the pipeline to be welded of described angle-style trustship and enter Row spot weld operation.Alternatively, described window is in being square, rectangle, circle and ellipse any one Plant shape.
Alternatively, said two line-up clamp frame uses steel plate to make.
Alternatively, described spiral ejection pin uses common coarse thread bar or fine thread bar to make.Alternatively, The upper part of described spiral ejection pin does not have screw thread.Alternatively, described spiral ejection pin do not have threaded Upper part is thicker than the other parts of described spiral ejection pin.Alternatively, the lower end system of described spiral ejection pin It is made sphere or through chamfered.
Alternatively, the pipeline welding contra-aperture device of the present invention also includes two push rod handles, described by rotating Push rod handle can make described spiral ejection pin by described tapped through hole precession or back-out, wherein, described spiral The upper end of push rod offers through hole diametrically, and described push rod handle is through described through hole and can be described Through hole moves so that the diverse location adjusting described push rod handle is positioned in described through hole;Or said two Push rod handle extends through in the upper part of said two spiral ejection pin and is welded on one with described spiral ejection pin Rise;Or said two push rod handle is respectively welded at the top of said two spiral ejection pin.Alternatively, institute The both ends or one end stating push rod handle are provided with cover type nut.
Alternatively, the pipeline welding contra-aperture device of the present invention also include two can spinning block, said two can be revolved Briquetting is rotatably installed on the end portion of said two spiral ejection pin, accommodates the lower end of spiral ejection pin Part.Alternatively, said two can spinning block be to have end uncovered and have the geometry shape of hollow parts, Said two can spinning block there to be bottom surface side to be respectively arranged in said two spiral shell in the way of described angle-style conduit saddle The end portion of rotation push rod, and be contained in by the end section of described spiral ejection pin can the hollow parts of spinning block.
Alternatively, ring recess is partially radially offered in the bottom of described spiral ejection pin by subterminal.Described Can in the middle part of the side of spinning block, be provided with multiple internal thread hole diametrically, multiple location flat head screw respectively from Described can spinning block outside through the plurality of internal thread hole and stretch out described can the inwall of spinning block and enter Described hollow parts, the end of described location flat head screw is contained in described spiral ejection pin bottom movably Described spiral ejection pin bottom can be installed on by spinning block described in ring recess makes.
Alternatively, described can spinning block towards the centre position, side, bottom surface of described angle-style conduit saddle and parallel On the direction of the angle crestal line of angle-style conduit saddle, offer a V-shaped groove or U-type groove, form pressure pipe groove, use In pushing down the pipeline to be welded.Alternatively, two groove faces of described pressure pipe groove are arcwall face or plane.Can Selection of land, two groove faces of described pressure pipe groove have reticulate pattern.Alternatively, described can spinning block be to have end uncovered Centre has cuboid or the cylindrical shape of hollow parts.Alternatively, described can spinning block use low-alloy Refractory steel material makes.
Utilize the pipeline welding contra-aperture device of the present invention, the port of two pipelines to be welded can be made the most right Standard, the wrong degree of bias is low, thus fast and easy welding.
Accompanying drawing explanation
In accompanying drawing (it is not necessarily drawn to scale), similar reference can be at different views Described in similar parts.The similar reference numerals with different letter suffix can represent the difference of similar component Example.Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.Special Not mentionleting alone bright, in appended accompanying drawing, dotted portion represents the structure of non-visible part.It addition, in order to The structure of each several part of convenient display and explanation parts, the local in the accompanying drawing having can show this with profile The internal structure of local.It addition, in the accompanying drawings, using the X-direction shown in Figure 1A turn left from the right side as Front view direction, Y direction is from left to right as left view direction, and Z-direction is from top to bottom as overlooking Figure direction.
Figure 1A shows that the stereochemical structure of pipeline welding contra-aperture device according to an embodiment of the present is shown It is intended to;
Figure 1B shows the left view of the pipeline welding contra-aperture device shown in Figure 1A;
Fig. 1 C shows the front view of the pipeline welding contra-aperture device shown in Figure 1A;
Fig. 2 A and Fig. 2 B respectively illustrates wherein comprised in the pipeline welding contra-aperture device shown in Figure 1A The left view of individual line-up clamp frame and top view;
Fig. 3 A, Fig. 3 B, Fig. 3 C respectively illustrate in the pipe front view road welding contra-aperture device shown in Figure 1A The left view of angle-style conduit saddle, top view and the front view comprised;
Fig. 4 A shows the structural representation of the spiral ejection pin comprised in the pipeline welding contra-aperture device shown in Figure 1A Figure;
Fig. 4 B shows the upper part of spiral ejection pin structural representation on A direction in Fig. 4 A;
Fig. 4 C shows the top view of Fig. 4 A;
Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D respectively illustrate the pipeline welding contra-aperture device shown in Figure 1A In comprise can the front view of spinning block, top view, left view and upward view;
Fig. 6 A shows the structural representation of a kind of embodiment of the location flat head screw that the present invention uses;
Fig. 6 B shows the left view of the location flat head screw shown in Fig. 6 A;And,
Fig. 7 A, Fig. 7 B and Fig. 7 C respectively illustrate the reinforcement left view of gusset, top view, front view.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and should be by Embodiments set forth here is limited.On the contrary, it is provided that these embodiments are able to be best understood from this Open, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
The invention discloses a kind of pipeline welding contra-aperture device, Figure 1A shows that the one according to the present invention is real Executing the structural representation of the pipeline welding contra-aperture device of example, Figure 1B shows the pipeline welding pair shown in Figure 1A The left view of mouth device;Fig. 1 C shows the front view of the pipeline welding contra-aperture device shown in Figure 1A.Such as figure Shown in 1A~1C, the pipeline welding contra-aperture device of the present invention includes: two line-up clamp frames 4, angle-style conduit saddles 1, two spiral ejection pins 5, two can 2, two push rod handles 6 of spinning block.
Wherein, line-up clamp frame 4, in handle-type, as shown in Fig. 2 A and Fig. 2 B, has horizontal flat upper end 41, vertical middle part 42 and become the bottom 43 at 135 degree of angles, wherein Fig. 2 A with vertical middle part 42 Show a kind of embodiment of the line-up clamp frame 4 comprised in the pipeline welding contra-aperture device shown in Figure 1A Left view;Fig. 2 B shows the top view of the line-up clamp frame 4 shown in Fig. 2 A.Line-up clamp frame 4 by The cylindricality metal material with some strength is made.Such as, use cross section be rectangle or square or Other shapes of cylindricality metal material makes.Such as, the diameter (abbreviation caliber) for pipe is 20~65mm The butt welding of pipeline, the steel plate that line-up clamp frame 4 can use thickness to be about 25mm makes, such as Ordinary carbon steel steel plate is used to cut the type of making.Here, the present invention does not limit the size of used steel plate, tool Body size determines according to the size of the caliber of the pipeline to be welded.The present invention does not the most limit line-up clamp frame 4 The making material used, it is common that metal and the material that has some strength.
Fig. 3 A, Fig. 3 B, Fig. 3 C respectively illustrate the left view of angle-style conduit saddle 1, top view and front view. Angle-style conduit saddle 1 is made by V-type metal material, and two planes of described V-type material become 90 degree, uses In the port section holding two pipelines being intended to butt welding.Angle-style conduit saddle 1 with its V-type opening towards two The mode of the upper end of line-up clamp frame 4 is fixed on the medial slope of the bottom 43 of two line-up clamp frames 4 On, the most spaced a predetermined distance, such as, two line-up clamp frames 4 are respectively for two line-up clamp frames 4 It is welded on the two ends of angle-style conduit saddle 1.Here, the preset distance at two line-up clamp frame 4 intervals, i.e. angle-style The length of conduit saddle 1, relevant with the caliber of the pipeline to be welded, weld bond width, generally, caliber is the biggest, institute State preset distance the biggest, to facilitate the hands that can place welder and operator.And caliber is the biggest, this The size of other parts of the pipeline welding contra-aperture device of invention the most correspondingly becomes big.Such as, boil on the nape opposite the mouth is welded When the caliber of the pipeline connect is 20~65mm, described preset distance can about 130mm.Therefore, two The preset distance that line-up clamp frame 4 is spaced each other determines as desired, and this is not carried out by the present invention It is particularly limited to.Alternatively, the plane-welding near two line-up clamp frames 4 of angle-style conduit saddle 1 is described two On the medial slope of the bottom of individual line-up clamp frame 4, as shown in Figure 1A and 1B.
The arm of angle length of side of the plane of the medial slope being welded in two line-up clamp frames 4 of angle-style conduit saddle 1 is (i.e., V-type material forms the length of side on the limit of an angle of 90 degrees), it is substantially equal to or less than two line-up clamp frames The length of the bottom of 4.Two planes of angle-style conduit saddle 1 can with size is identical can also the width of a plane Degree (i.e. the arm of angle length of side) is more than width of another plane, such as, angle-style conduit saddle 1 be fixed on two right The width of the plane of mouthpart frame 4 side is less than the width of another plane.
Alternatively, angle-style conduit saddle 1 can use angle steel to make.Such as, it is 20~65mm for caliber The butt welding of pipeline, angle-style conduit saddle 1 can use 45mm × 6mm, and (wherein the length of side of angle steel is 45mm, the thickness of angle steel is 6mm) equal leg angle make.Angle-style conduit saddle 1 and line-up clamp frame 4 Contact site full weld connects (position that angle-style conduit saddle 1 as shown in Figure 1 contacts) with line-up clamp frame 4, Line-up clamp frame 4 after welding is similar in a bottom Light deformation with angle-style conduit saddle 1 in overall appearance Bracket "] ", this shape is easy to clamp pipeline, additionally also allows for the gap pipeline in bank of tubes, real Now two pipe ends are gripped.
Alternatively, in the position of middle lower portion of angle-style conduit saddle 1 (i.e. near the side of angle ridge and in interposition Put) place offers a window 11, (this window 11, in fig. 1 c this window shown in Figure 1A and Fig. 1 C 11 are shown as an oblong openings) so that the bottom of angle-style trustship 1 can be pointed to be welded when welding Two pipelines between the part to be welded of position carry out spot weld operation, such that it is able to increase to be welded two Solderable position between two boil on the nape opposite the mouth of root pipe.In Figure 1A and Fig. 1 C, described window 11 is rectangular Shape opening, alternatively, described window 11 can be square, the circular or opening of ellipse or other The opening of any shape, the present invention does not limit the shape of described window 11.Further optionally, institute Stating window 11 can be the position being opened in angle-style conduit saddle 1 middle lower portion symmetrically, and the most described window 11 exists Aperture position in two planes of angle-style conduit saddle 1 is symmetrical, equal in magnitude.Alternatively, described window 11 exists Aperture position in two planes of angle-style conduit saddle 1 is identical, but size can different, shape can also be different, This is not limited by the present invention.
In practice, can determine whether that window is offered in the position of the middle lower portion at angle-style conduit saddle 1 as required Mouthfuls 11, when offering window 11, can increase as previously mentioned to be welded two piece pipeline two boil on the nape opposite the mouth it Between solderable position, when not offering window 11, the rigidity of angle-style conduit saddle 1 can increase relatively.
On the horizontal flat upper end 41 of line-up clamp frame 4, at the vertical middle part with line-up clamp frame 4 Offer tapped through hole 44 on 42 parallel directions and (i.e. have female through hole, such as Fig. 2 A and 2B institute Show), the central axis upright of this tapped through hole 44 in and with crestal line (the i.e. V-type material of angle-style conduit saddle 1 The connecting line of two planes) in a plane, as shown in FIG. 1A and 1B.
Specifically, spiral ejection pin 5 is for having threaded bar, as shown in Figure 4 A.Spiral ejection pin 5 lower end is worn Cross the tapped through hole 44 in described line-up clamp frame 4 and can by the precession of described tapped through hole 44 or back-out, Length (i.e. adjustable screw push rod 5 end and the angle-style in line-up clamp frame 4 is entered with adjustable screw push rod 5 Distance between conduit saddle 1), as shown in FIG. 1A and 1B, wherein, when the pipeline welding boil on the nape opposite the mouth of the present invention During two pipelines that device 100 clamping to be welded, spiral ejection pin 5 is positioned at the part in line-up clamp frame 4 Length depends on the pipe diameter size of the pipeline to be welded.So, it is arranged on line-up clamp through tapped through hole 44 spiral The axis of the spiral ejection pin 5 in frame 4 be perpendicular to angle-style conduit saddle 1 crestal line and with the crestal line of angle-style conduit saddle 1 It is positioned at a plane, the i.e. axis of spiral ejection pin 5 and passes perpendicularly through the crestal line of angle-style conduit saddle 1.Here, spiral shell Rotation push rod 5 can use common coarse thread bar or fine thread bar to make, preferably common coarse thread bar system Make, such as, for a diameter of 20~the butt welding of the pipeline of 65mm, diameter can be used about to be of about The common coarse thread bar of 12mm makes.
Fig. 4 B shows the upper part of spiral ejection pin 5 structural representation on A direction in Fig. 4 A, as Shown in Fig. 4 A and Fig. 4 B, the upper part of spiral ejection pin 5 radially (be i.e. perpendicular to spiral ejection pin 5 Axis direction) on offer through hole 51.Push rod handle 6 is through described through hole 51 and can be at described through hole Move so as to the diverse location adjusting push rod handle 6 is positioned in described through hole 51 in 51, such as Figure 1A and Shown in 1B.It is under moveable situation at push rod handle 6 in described through hole 51, on the one hand can make top Bar handle 6, in order to suitably hide or get around barrier, is adjusted to the position turn spiral more conveniently operated Push rod 5, on the other hand can also make push rod handle 6 in order to easy adjustment spiral ejection pin 5 and increase rotation Clamp force square, is adjusted at relatively labor-saving form-fit torque turn spiral ejection pin 5 again.It addition, at push rod handle 6 Need to also allow for from spiral ejection pin 5, extract it out during dismounting.Alternatively, the opening of the upper end of spiral ejection pin 5 If the part of radial direction through hole 51 does not have screw thread.Alternatively, the upper end of spiral ejection pin 5 do not have threaded Part is thicker than the other parts of spiral ejection pin 5.Such as, spiral ejection pin 5 about 15mm scope from top Interior upper part non-threaded, and relatively thick, radially offer through hole 51 at this unthreaded portion, be used for Accommodate push rod handle 6.Such as, the diameter of the upper end unthreaded portion of spiral ejection pin 5 can be about 15mm, There is a diameter of about 12mm of threaded portion lower end.The through hole 51 that the unthreaded portion of spiral ejection pin 5 is offered Diameter can be about 8.6mm, its diameter of push rod handle 6 accommodated is about 8.0mm.
When each push rod handle 6 is installed on the upper part of spiral ejection pin 5 movably, at spiral shell When the screw thread of rotation push rod 5 is damaged, only push rod handle 6 need to be disassembled from spiral ejection pin 5, then Change spiral ejection pin.It addition, when push rod handle 6 damages, be also convenient for it is carried out dismounting and change.
Alternatively, two push rod handles 6 can also extend through in the upper part of two spiral ejection pins 5 also Weld together with spiral ejection pin 5, i.e. push rod handle 6 can not move relative to spiral ejection pin 5, this In the case of Zhong, it is common that radially open a through hole 51, then by push rod in the upper part of each spiral ejection pin 5 The appropriate location of push rod handle 6 through described through hole 51 and is welded together by handle 6 with spiral ejection pin 5, For example, it is possible to one end of push rod handle 6 through described through hole 51 and is made the portion near push rod handle 6 two ends Divide and weld together with spiral ejection pin 5 so that push rod handle 6 and spiral ejection pin 5 essentially form square Shape, it is possible to so that push rod handle 6 through described through hole 51 and makes the mid portion of push rod handle 6 be positioned at institute When stating in through hole 51, push rod handle 6 is welded together with spiral ejection pin 5 so that push rod handle 6 and spiral Push rod 5 essentially forms T-shape.It is relative with spiral ejection pin 5 that the present invention does not limit push rod handle 6 Position, only need to be fixed on corresponding position as required.In like manner, it is also possible to by direct for push rod handle 6 It is welded on the top of the upper part of spiral ejection pin 5, so without offering in the upper part of spiral ejection pin 5 Through hole 51, the present invention does not limit the position of welding, as it was previously stated, as required by the phase of push rod handle 6 Position is answered to be welded on the top of upper part of spiral ejection pin 5.Such connected mode, can simplify The processing and fabricating of the pipeline welding contra-aperture device of the present invention.
Alternatively, the both ends or one end at each push rod handle 6 can be provided with cover type nut 7.Figure 1A and The two ends of each push rod handle 6 shown in Figure 1B are fitted with cover type nut 7.Described cover type nut 7 is Cover type nut standard component, such as, can use M8 cover type nut standard component.At push rod handle 6 movably When being installed on the upper part of spiral ejection pin 5, owing to intermediate portion is positioned at the upper part of spiral ejection pin 5, So, cover type nut can be respectively mounted at the two ends of push rod handle 6.If the fixing peace in push rod handle 6 one end When being loaded on the upper part of spiral ejection pin 5, then its other end can install cover type nut.At push rod handle 6 End when being provided with cover type nut 7, convenient to operate when operating push rod handle 6, hands will not be ground.
Alternatively, the two end portions uneasiness at push rod handle 6 fills cover type nut, does not make screw thread, but push rod The two end portions of handle 6 is thicker relative to other parts, so that the two end portions of push rod handle 6 will not be from The radial direction through hole 51 of the upper part of spiral ejection pin 5 is deviate from.
Alternatively, the two end portions uneasiness at push rod handle 6 fills cover type nut, does not make screw thread, but carries out Chamfered so that it is the roundest and the most smooth, from without easily hurting operator because corner angle are prominent.
Two can respectively rotatably be installed on the end portion of two spiral ejection pins 5 by spinning block 2, be used for holding Receive the end portion of spiral ejection pin 5.Owing to the end portion of spiral ejection pin 5 is in electric welding splash zone, at spiral shell Rotation push rod 5 end portion install can spinning block 2, some splashing welding slags can be blocked, thus protect spiral Screw thread in the range of push rod 5 end portion certain length is without damage, is effectively improved spiral ejection pin 5 total travel Turn assurance coefficient freely, and can prevent the screw thread of spiral ejection pin 5 end from damaging because colliding with, it is beneficial to inspection Repair dismounting, protection ball-type end face, it is ensured that pressure centering is accurate.
Alternatively, end uncovered and the cuboid with hollow parts 23 or cylinder can be used by spinning block 2 Body or other geometry shape, described hollow parts 23 is used for accommodating the end section of spiral ejection pin 5, It is installed on the end portion of spiral ejection pin 5 there being side, the end towards the direction of angle-style conduit saddle 1.Here, and Do not limit can the concrete shape of spinning block 2, as long as being capable of the function of the present invention.
About the mode of end portion of spiral ejection pin 5 can be installed on by spinning block 2, such as, can use as follows Mode: can in the middle part of the side of spinning block 2, be provided with the internal thread hole 21 of multiple flat head screw shape diametrically (such as M3 internal thread hole), multiple location flat head screw 22 is respectively from can be through described outside spinning block 2 Internal thread hole 21 and stretch out can spinning block 2 inwall enter hollow parts 23, such as Fig. 5 A, 5B, 5C, 5D Shown in, which respectively show the pipeline welding contra-aperture device shown in Figure 1A comprises can spinning block 2 be main regards Figure, top view, left view and upward view, Fig. 6 A shows a kind of enforcement of location flat head screw 22 The structural representation of the cross section along axis of example, Fig. 6 B shows the location flat head screw shown in Fig. 6 A 22 left views.Described can spinning block 2 including at least two symmetrical internal thread holes 21, Fig. 5 A-5C In show have 4 internal thread holes 21 can spinning block 2, it use 4 corresponding location tack spiral shells Nail 22.Spiral ejection pin 5 end portion radially offer a ring recess 52 by subterminal position (the most radial ringed groove, as shown in Figure 4 A).Such as, described ring recess 52 is positioned at end, spiral ejection pin 5 bottom Hold up at 6.5mm, described ring recess 52 such as groove depth about 3mm, groove width about 3mm.Location tack spiral shell Follow closely 22 ends to be contained in described ring recess 52, and it is certain to make location flat head screw 22 have in ring recess 52 Activity space, so, can be under free state by spinning block 2, may with the upper surface of ring recess 52 or under End contact.It is to say, location flat head screw 22 play location can the effect of spinning block 2, and guarantee can Spinning block 2 has free movement space.Can spinning block 2 be compacted on the pipeline to be welded time, position tack Screw 22 then needs not axial power up or down by spiral ejection pin 5 so that spiral ejection pin 5 to Under the power of pipeline to be welded of compression can all be delivered on described pipeline, so, in this way it is easy to determine whether It is compacted the pipeline to be welded.If it addition, location flat head screw 22 stress, easily making himself to be subject to Damage.
Alternatively, as seen in figs. 5c and 5d, can centre position bottom spinning block 2, be parallel to angle-style Offer a V-shaped groove 24 on the direction of the angle ridge of conduit saddle 1, form pressure pipe groove 24, be used for pushing down and be intended to weld The pipeline connect is near the position of pipe end, it is simple to the mouth of pipe alignment of two pipelines making to be welded, and make to be intended to right The pipe end of two accurate pipelines is coaxial.The bottom of spinning block 2 V-shaped groove can be offered shown in Fig. 5 C 24.Such as, for the butt welding of pipeline that caliber is 20~65mm, can the size of spinning block 2 be When 24mm × 24mm × 26mm, described V-shaped groove 24 can be the degree of depth about 2.5mm, and width is about 12mm through can V-shaped groove bottom spinning block 2, form pressure pipe groove 24.Alternatively, this pressure pipe groove Two groove faces can be fabricated to have reticulate pattern 25, as shown in Figure 5 D, due to two groove faces of this pressure pipe groove 24 The groove face of pipeline and pressure pipe groove 24 so can be increased with the tube contacts to be welded it is pressed Between frictional force, can more effectively eliminate pipeline play in the axial direction, move radially and the impact that causes, Effectively strengthen the reliability of fastening pipe, be further ensured that alignment clearance meets quality standard, thus ensure Welding job is carried out smoothly.
Alternatively, two groove faces of pressure pipe groove 24 (i.e. V-shaped groove) of spinning block 2 U can also can be made Type groove, plane or arcwall face, the shape of pressure pipe groove is not done any restriction by the present invention.
When can spinning block 2 and spiral ejection pin 5 use foregoing by ring recess 52 and location flat head screw When the mode of 22 is mutually installed together, on the one hand by ring recess 52 can ensure that can the location of spinning block 2, On the other hand it is also ensured that can the free turn of spinning block 2 and a certain amount of move axially so that pressure pipe groove Two groove faces can coincide with the outer wall of the pipeline to be welded all the time and compress.
It addition, can easily bond welding slag by spinning block 2, even suffer scaling loss, it is therefore preferable that it is strong to have certain heat Degree and bearing capacity and the material that red brittleness is insensitive is made, such as can use 15MoG (steel Model) etc. low-alloy Refractory steel material make, after the Steel material of the type is heated, intensity reduces seldom, and Less brittle.Alternatively, when considering cost of manufacture factor more than service life and effect factor, can spinning block 2 can also use common straightcarbon steel, at this moment, as long as can spinning block 2 is damaged can be replaced.
Alternatively, the lower end of spiral ejection pin 5 becomes sphere, as such, it is possible to screwing spiral ejection pin 5 Power focuses on that one point union is the most all delivered to can be on spinning block 2.If the lower end of spiral ejection pin 5 For plane, on the one hand, described plane is the most flat, on the other hand, described plane time length surface Can get rusty or constantly affected by alternating thermal stress, be easily deformed, causing spiral ejection pin 5 to pass through can spinning Block 2 is to pressure during the pipeline pressure to be welded partially.But the lower end end of spiral ejection pin 5 does not limit making balling-up Face, such as it can also be fabricated to microsphere face, or through chamfered.
Alternatively, the pipeline welding contra-aperture device of the present invention can further include reinforcement gusset 8, such as figure Shown in 1A Yu Figure 1B.This reinforcement gusset 8 is fixed on the inner side of the bottom with said two line-up clamp frame Below the plane of the angle-style conduit saddle 1 that inclined-plane is fixed together, and between two line-up clamp frames, by two The bottom of individual line-up clamp frame 4 is fixed together, such as strengthen gusset 8 respectively with angle-style conduit saddle 1, The bottom of two line-up clamp frames 4 can form an entirety by welding, improves intensity further. Strengthen gusset 8 typically each to be made by metal material, to facilitate and 1, two line-up clamp frames 4 of angle-style conduit saddle Bottom weld together.Fig. 7 A, Fig. 7 B and Fig. 7 C respectively illustrate reinforcement gusset 8 left view, Top view and front view.
Here, strengthen gusset 8 one aspect and connect two line-up clamp frames 4, on the other hand strengthen angle-style conduit saddle 1 Intensity, prevent angle-style conduit saddle 1 from deforming.When the angle steel that angle-style conduit saddle 1 uses thick about 6mm makes, still There is the risk being easily deformed in the case of stress, its intensity can be increased further by strengthening gusset 8, Avoid it to deform.
Further optionally, the right angle side in the upper end of two line-up clamp frames 4 can be by a lacing wire (example Such as reinforcing bar) or reinforcing plate link together, thus further increase by two line-up clamp frames 4 steadiness strong Degree.
According to another embodiment of the invention, the pipeline welding contra-aperture device of the present invention is relative to above For described embodiment, can not use can spinning block 2, but the lower surface of direct spiral ejection pin is withstood The pipeline to be welded, to make the present invention simplify further.Under this situation, spiral ejection pin 5 bottom is no longer opened If ring recess 52 (the most radial ringed groove), furthermore it is possible to as required, by the lower surface system of spiral ejection pin 5 It is made microsphere face or carries out chamfered.It addition, do not use can spinning block 2 when, the most permissible Increase the caliber scope clamped by pipeline welding contra-aperture device of the present invention to 15~90mm.
According to another embodiment of the invention, the pipeline welding contra-aperture device of the present invention is relative to above For described embodiment, can not use push rod handle 6, this can make the present invention simplify further.At this Planting under situation, the upper part of spiral ejection pin 5 can not have screw thread can also have screw thread;Alternatively, The upper part of spiral ejection pin 5 can relative to the other parts of spiral ejection pin 5 more slightly, make nut type or Person welds a nut, at this moment, can insert the hole of nut and handle by multiple common wrench or by metallic rod Hold spiral ejection pin 5 to operate, such as, rotate.
According to another embodiment of the invention, when the caliber of the pipeline to be welded is bigger, Ke Yizeng Add line-up clamp frame 4 makes size, and angle-style conduit saddle 1 the most also can be replaced by the similar of specification increasing Angle steel.It is to say, the size of each parts can be welded according to being intended in the pipeline welding contra-aperture device of the present invention The pipe diameter size of pipeline and adjust.
The specifically used of the present invention is described below.
When the pipeline welding contra-aperture device 100 using the present invention welds two single pipelines, by the present invention Pipeline welding contra-aperture device 100 be enclosed within the pipe end to be welded of two pipelines, make the pipe end of two pipelines Quasi-weld bond be in the centre position of pipeline welding contra-aperture device 100, two spiral ejection pins 5 are respectively placed in institute State on the reference edge pipeline of quasi-weld bond both sides and on pipeline to be adjusted (when one of them selected in two pipelines When pipeline is as reference edge pipeline, then another is pipeline to be adjusted), precession is fixed with reference edge pipeline side Spiral ejection pin 5, fastening reference edge pipeline section in the pipeline welding contra-aperture device of the present invention.Again by be adjusted Pipeline adjusts to satisfactory alignment clearance position, the position that i.e. port with reference edge pipeline is directed at, that Keep the gap required by this area specification or standard between this, and two pipelines to be welded are in one On straight line, then, screw the spiral ejection pin 5 at pipeline location to be adjusted, fasten pipeline to be adjusted in this In bright pipeline welding contra-aperture device, and make to realize meeting between reference edge pipeline and pipeline to be adjusted executing The boil on the nape opposite the mouth state that weldering requires.Owing to the pipeline welding contra-aperture device of the present invention is an entirety, therefore, it is intended to boil on the nape opposite the mouth Two pipelines of welding ideal position the most on request, is firmly fixed.
When the joint of two pipelines of alignment carries out welding, typically initially with the mode of symmetrical spot welding, example Such as 3 to 4 points of spot welding or more point, reach two pipeline spot welding and connect and be relatively fixed, the most again will Pipeline welding contra-aperture device 100 disassembles from two pipelines, the other parts weldering to the joint of two pipelines Pick up.Therefore, in weld seam certain extension diameter range radially of the joint of two pipelines of alignment Reserve more can welding working place critically important.Due to the fact that two line-up clamp frames 4 of employing, so, Leave bigger can welding working place, it addition, if it is intended to reserve bigger can welding working place, The spacing that two line-up clamp frames 4 can be made to accommodate between space or two line-up clamp frames 4 of pipeline is done Obtain some larger.It addition, the present invention is on the premise of ensureing rigid, if in angle-style trustship 1 Between offer window near the position of angle ridge, can realize to the utmost blocking less, it is simple to stretch into welding rod, Welding wire carries out spot weld operation etc. such that it is able to reserving more greatly can welding working place.
It addition, the pipeline welding contra-aperture device 100 of the present invention can be used in bank of tubes pipe between each pipeline Welding, specifically, by the pipeline welding contra-aperture device 100 of the present invention through bank of tubes gap, be placed on need right On the pipe end of the pipeline of mouthful welding (that is, the bore of two pipelines being intended to weld together is mutually aligned), Other operation is as described above the same about the butt welding between two single pipelines, in order to avoid repeating, Description is not repeated herein.
Owing to a pipeline can be fixed between spinning block 2 respectively the angle-style conduit saddle 1 of the present invention and two, two The port of individual pipeline the centre position of spinning block 2 can carry out boil on the nape opposite the mouth welding on angle-style conduit saddle 1 and at two, Therefore, can spinning block 2 (lower surface of spiral ejection pin 5 can be referred to during spinning block 2 being provided without) at two Between leave the welding working place at weld bond as much as possible, facilitate operator to carry out welding operation. It addition, use can spinning block 2 when, fastening time, pipe with can spinning block 2 in four-wire symmetrical Contact is fixing, so that two pipelines to be welded can align, the wrong degree of bias is the least.The pipeline of the present invention Welding contra-aperture device is mainly used in the welding contra-aperture device of the pipeline of relatively pipe with small pipe diameter.The pipeline welding pair of the present invention Mouth device overall volume is little, could be applicable to the butt welding of pipelines operation in the bank of tubes of comparatively dense.It addition, Can also be used for the coaxially connected preliminary centering of the tubing of minor diameter, shaft element and position temporarily.
The present invention except line-up clamp frame 4, angle-style conduit saddle 1 and strengthen gusset 8 by welding make one whole Outside body, other each parts are removable design, it is simple to adjust, overhaul and change parts.The present invention Pipeline welding contra-aperture device 100 ensure that the pipe end of pipeline is connected to effect in butt welding and aligns, prevent the mouth of pipe Dislocation is fast to pipe speed, axiality is high.It addition, the pipeline welding contra-aperture device of the present invention can ensure that right Mouth gap, axis deviation rate etc. meet craft quality standard requirement.Fastening force of the present invention is big, and dynamics is adjustable, Having automatic centering anti-deflection ability, clamping is persistently.Further, present configuration is the compactest, easy to use, Practical.
The line-up clamp processing and fabricating of the present invention is convenient, with low cost, for example, it is possible to merely with job site Simple tool and the material such as existing angle steel, reinforcing bar, thick iron plate, even leftover bits and pieces, just can letter by hand Easily it is made, and produces specially without producer.It addition, the line-up clamp of the present invention preserves maintenance simply with rear, In addition to being put in and being dried place attention prevents serious corrosion phenomena, almost without must other special maintenances, ready access upon use, Easy to carry.
In description mentioned herein, illustrate a large amount of detail.However, it is to be understood that, Embodiments of the invention can be put into practice in the case of not having these details.In some instances, not It is shown specifically known method, structure and technology, in order to do not obscure the understanding of this description.
It is only principle and the preferred embodiment of the present invention it addition, above-described.It should be pointed out that, for this For the those of ordinary skill in field, on the basis of the principle of the invention, it is also possible to make other modification some, These modification are also considered as falling within the scope of protection of the present invention.
Additionally, it will be appreciated by those of skill in the art that the combination of the feature of different embodiment means to be in Within the scope of the present invention and form different embodiments.Such as, in detail in the claims, required guarantor One of arbitrarily can mode using in any combination of the embodiment protected.
It should be noted that above-described embodiment the present invention will be described rather than limits the invention, And those skilled in the art can design replacement enforcement without departing from the scope of the appended claims Example.In the claims, any reference marks that should not will be located between bracket is configured to claim Limit.Word " comprises " and does not excludes the presence of the element not arranged in the claims.It is positioned at the list before element Word "a" or "an" does not excludes the presence of multiple such element.

Claims (10)

1. pipeline welding contra-aperture device, it is characterised in that include two line-up clamp frames, angle-style conduit saddle, with And two spiral ejection pins, wherein,
Described line-up clamp frame is handle-type, have horizontal flat upper end, vertical middle part and with vertically Middle part become 135 degree of angles bottom, described angle-style conduit saddle is become the V-type metal material of 90 degree by two planes Material is made, described angle-style conduit saddle with its V-type opening towards the upper end of said two line-up clamp frame On the medial slope of the bottom that mode is fixed on said two line-up clamp frame, said two line-up clamp frame The most spaced a predetermined distance;
The horizontal flat upper end of described line-up clamp frame offers tapped through hole, the center of this tapped through hole Axis is perpendicular to the crestal line of angle-style conduit saddle and with the crestal line of angle-style conduit saddle in a plane;
Described spiral ejection pin is for having threaded bar, and its lower end is through the tapped through hole in described line-up clamp frame And can be by described tapped through hole precession or back-out.
Pipeline welding contra-aperture device the most according to claim 1, it is characterised in that also include:
It is fixed on the angle-style conduit saddle that the medial slope with the bottom of said two line-up clamp frame is fixed together Plane below and reinforcement gusset between two line-up clamp frames, it is by said two line-up clamp machine The bottom of frame is fixed together.
Pipeline welding contra-aperture device the most according to claim 1 and 2, it is characterised in that
The position of the middle lower portion of described angle-style conduit saddle offers a window, in order to can be right when welding The part to be welded of the position between bottom and the pipeline to be welded of described angle-style trustship carries out spot welding behaviour Make.
4. according to the pipeline welding contra-aperture device in any of the one of claim 1-3, it is characterised in that
The upper part of described spiral ejection pin does not have screw thread.
Pipeline welding contra-aperture device the most according to claim 4, it is characterised in that
Described spiral ejection pin not have threaded upper part thicker than the other parts of described spiral ejection pin.
6. according to the pipeline welding contra-aperture device in any of the one of claim 1-3, it is characterised in that Also include two push rod handles, described spiral ejection pin can be made by described spiral shell by rotating described push rod handle Stricture of vagina through hole precession or back-out, wherein,
The upper end of described spiral ejection pin offers through hole diametrically, and described push rod handle passes described through hole And can move so that the diverse location adjusting described push rod handle is positioned in described through hole in described through hole, Or,
Said two push rod handle extend through in the upper part of said two spiral ejection pin and with described spiral Push rod welds together;Or,
Said two push rod handle is respectively welded at the top of said two spiral ejection pin.
7. according to the pipeline welding contra-aperture device in any of the one of claim 1-3, it is characterised in that Also include two can spinning block, said two can rotatably be installed on said two spiral top by spinning block The end portion of bar, accommodates the end portion of spiral ejection pin.
Pipeline welding contra-aperture device the most according to claim 7, it is characterised in that
Said two can spinning block be to have end uncovered and have the geometry shape of hollow parts, and said two can Spinning block is respectively arranged under said two spiral ejection pin there being bottom surface side in the way of described angle-style conduit saddle End portion, and be contained in by the end section of described spiral ejection pin can the hollow parts of spinning block.
9. according to the pipeline welding contra-aperture device described in claim 7 or 8, it is characterised in that
Ring recess is partially radially offered by subterminal in the bottom of described spiral ejection pin,
Described can be in the middle part of the side of spinning block, be provided with multiple internal thread hole, multiple location tack diametrically Screw respectively from described can spinning block outside through the plurality of internal thread hole and stretch out described can spinning block Inwall and enter described hollow parts, and the end of described location flat head screw is contained in described spiral shell movably Described spiral ejection pin bottom can be installed on by spinning block described in the ring recess of rotation push rod bottom makes.
10. according to the pipeline welding contra-aperture device described in claim 7 or 8, it is characterised in that
Towards the centre position, side, bottom surface of described angle-style conduit saddle and angle-style pipe can be parallel to by spinning block described Offer a V-shaped groove or U-type groove on the direction of the angle crestal line of torr, form pressure pipe groove, be used for pushing down desire The pipeline of welding.
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