CN103978343A - Method for processing material-feeding bent pipe for large grinder - Google Patents

Method for processing material-feeding bent pipe for large grinder Download PDF

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Publication number
CN103978343A
CN103978343A CN201410154381.9A CN201410154381A CN103978343A CN 103978343 A CN103978343 A CN 103978343A CN 201410154381 A CN201410154381 A CN 201410154381A CN 103978343 A CN103978343 A CN 103978343A
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China
Prior art keywords
bend pipe
feed bend
feed
cylindrical
extension
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Granted
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CN201410154381.9A
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Chinese (zh)
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CN103978343B (en
Inventor
刘景兰
刘洪洪
杨菲
刘东梅
付晓蓉
王宝玲
徐怀政
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CITIC Heavy Industries Co Ltd
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CITIC Heavy Industries Co Ltd
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Publication of CN103978343A publication Critical patent/CN103978343A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L43/00Bends; Siphons
    • F16L43/001Bends; Siphons made of metal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention discloses a method for processing a material-feeding bent pipe for a large grinder and relates to the technical field of mechanical processing. A processing standard surface of the material-feeding bent pipe is processed on a boring machine, meanwhile, a centering circle is milled at the external circle of an extending pipe (4) of the material-feeding bent pipe, the material-feeding bent pipe is fixed to a lathe by a tool, and after being centered by the end surface of the extending pipe processed on the boring machine and the centering circle, the material-feeding bent pipe is processed. The size precision, the roundness and the roughness of the external circle of the material-feeding bent pipe are effectively guaranteed, and the processing efficiency is greatly improved. The method has the characteristics of simple operation and high processing precision.

Description

The processing method of feed bend pipe for a kind of large-sized grinder
[technical field]
The present invention relates to Machining Technology field, be specifically related to a kind of processing method of feed bend pipe, be specifically related to the processing method of a kind of large-sized grinder feed bend pipe.
[background technology]
Known, the feed bend pipe of large-sized grinder is casting or welding one section of bend pipe at an angle, its left end flange connects with charging gear, right-hand member connects with mill feeding end end cap, bottom surface connects with bearing, the wherein flange excircle of feed bend pipe left end and end face, bottom surface, right-hand member cylindrical and right side all need to process, the flange excircle of its left end and end face, Boring machine processing can be passed through in bottom surface, conveniently ensure the quality of products, and right-hand member need to be connected by sealing device and charging end cap, and right-hand member Excircle machining dimensional requirement precision is high, surface roughness requires high, Excircle machining length is long etc., for the cylindrical of feed bend pipe right-hand member, numerical control milling processing routinely or the method for boring machine facing head processing do not ensure dimensional accuracy and roughness requirement, and the processing of boring machine facing head is subject to the restriction of excircle dimension, therefore adopt existing processing method cannot ensure the crudy of cylindrical.
[summary of the invention]
For overcoming the deficiency existing in background technology, the invention provides the processing method of a kind of large-sized grinder feed bend pipe, the present invention by processing the processing datum of feed bend pipe on boring machine, while is at the cylindrical place milling one centering circle of the extension of feed bend pipe, then utilize frock that feed bend pipe is fixed on lathe, and carry out processing after centering with end face and the centering circle of the extension processed on boring machine, effectively ensure dimensional accuracy, circularity and the roughness requirement of feed bend pipe cylindrical, greatly improved working (machining) efficiency etc.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A processing method for feed bend pipe for large-sized grinder, described method specifically comprises the following steps:
The first step, first at least two hangers of non-processing excircles interlude welding of the bend pipe of feed bend pipe;
Second step, connect step, on platform, taking non-machined surface as thick benchmark, borrow accurate each portion surplus, mark respectively cylindrical line and the end face line of the ring flange A of feed bend pipe, the bottom surface line of gripper shoe, the cylindrical line of extension and right-hand member upper thread;
The 3rd step, connect step, processing datum, feed bend pipe is lain on the rotary table of lathe, after the line centering marking by second step, compress, milling becomes cylindrical and the end face of ring flange A, rotary table, the bottom surface of milling gripper shoe and the right side of extension, then the centering benchmark of processing as turning at the cylindrical place milling one centering circle of extension, is drilled to the each hole on the upper each hole of ring flange A and gripper shoe bottom surface;
The 4th step, connect step, the ring flange A of feed bend pipe is fixed together by bolt and frock, on lathe, a pair of claw is clamped gripper shoe and the frock of feed bend pipe bottom surface, another of lathe clamped the cylindrical of the bend pipe of feed bend pipe after cushion block is padded to claw, with the centering circle centering on end face and the extension cylindrical of extension, turning extension right-hand member cylindrical and end face;
The 5th step, after the 4th step machines, utilize lifting appliance connect hanger by processing after feed bend pipe be transported to territory, area to be transferred.
The processing method of feed bend pipe for described large-sized grinder, the lathe in described the 3rd step is boring machine or machining center.
The processing method of feed bend pipe for described large-sized grinder, the lathe in described the 4th step is common vertical lathe or NC vertical lathe.
The processing method of feed bend pipe for described large-sized grinder, frock in described the 4th step comprises riser, ring flange B, fabrication hole and base plate, described base plate is square structure, on base plate, be interval with at least two risers, one end of described riser is provided with and the inclined-plane that acutangulates setting above base plate, is provided with ring flange B on described inclined-plane.
The processing method of feed bend pipe for described large-sized grinder, described riser is provided with at least one fabrication hole, described fabrication hole be shaped as circle or ellipse or polygon.
The processing method of feed bend pipe for described large-sized grinder, is provided with reinforcement above described base plate.
The processing method of feed bend pipe for described large-sized grinder, is provided with cushion block between the claw in described the 4th step and the bottom surface of gripper shoe.
The processing method of feed bend pipe for described large-sized grinder, the lifting appliance in described the 5th step is overhead traveling crane.
Adopt technical scheme as above, the present invention has superiority as described below:
The processing method of feed bend pipe for a kind of large-sized grinder of the present invention, the present invention by processing the processing datum of feed bend pipe on boring machine, while is at the cylindrical place milling one centering circle of the extension of feed bend pipe, then utilize frock that feed bend pipe is fixed on lathe, and carry out processing after centering with end face and the centering circle of the extension processed on boring machine, dimensional accuracy, circularity and the roughness requirement of feed bend pipe cylindrical are effectively ensured, greatly improve working (machining) efficiency etc., the present invention has simple to operate, the feature that machining accuracy is high.
[brief description of the drawings]
Fig. 1 is the structural representation of feed bend pipe in the present invention;
Fig. 2 is the clamping structure schematic diagram of feed bend pipe in the present invention;
Fig. 3 is the perspective view of frock in the present invention;
In the drawings: 1, ring flange A; 2, gripper shoe; 3, bend pipe; 4, extension; 5, riser; 6, claw; 7, hanger; 8, cushion block; 9, ring flange B; 10, fabrication hole; 11, base plate.
[detailed description of the invention]
Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples;
The processing method of feed bend pipe for a kind of large-sized grinder described in 1~3 by reference to the accompanying drawings, described method specifically comprises the following steps:
The first step, first at least two hangers 7 of non-processing excircles interlude welding of the bend pipe 3 of feed bend pipe;
Second step, connect step, on platform, taking non-machined surface as thick benchmark, borrow accurate each portion surplus, mark respectively cylindrical line and the end face line of the ring flange A1 of feed bend pipe, the bottom surface line of gripper shoe 2, the cylindrical line of extension 4 and right-hand member upper thread;
The 3rd step, connect step, processing datum, feed bend pipe is lain on the rotary table of lathe, wherein said lathe is boring machine or machining center, after the line centering then marking by second step, compresses, and milling becomes cylindrical and the end face of ring flange A1, rotary table, the right side of the bottom surface of milling gripper shoe 2 and extension 4, the centering benchmark of then processing as turning at the cylindrical place milling one centering circle of extension 4, is drilled to the each hole on the upper each hole of ring flange A1 and gripper shoe 2 bottom surfaces;
The 4th step, connect step, the ring flange A1 of feed bend pipe is fixed together by bolt and frock, described frock comprises riser 5, ring flange B9, fabrication hole 10 and base plate 11, described base plate 11 is square structure, on base plate 11, be interval with at least two risers 5, described riser 5 is provided with at least one fabrication hole, described fabrication hole be shaped as circle or ellipse or polygon, be provided with in one end of riser 5 and the inclined-plane that acutangulates setting above base plate 11, on described inclined-plane, be provided with ring flange B9, further, in order to strengthen the intensity of work, on base plate 11, be provided with reinforcement, on lathe, a pair of claw 6 is clamped gripper shoe 2 and the frock of feed bend pipe bottom surface, wherein said lathe is common vertical lathe or NC vertical lathe, another of lathe clamped the cylindrical of the bend pipe 3 of feed bend pipe after cushion block 8 is padded to claw 6, with the centering circle centering on end face and extension 4 cylindricals of extension 4, turning extension 4 right-hand member cylindrical and end faces, are provided with cushion block 8 between described claw 6 and the bottom surface of gripper shoe 2,
The 5th step, after the 4th step machines, utilize lifting appliance connect hanger 7 by processing after feed bend pipe be transported to territory, area to be transferred, wherein said lifting appliance is overhead traveling crane.
Specific embodiments of the invention are:
The diameter of the ring flange A1 of feed bend pipe left end is Φ 810mm, the outside diameter of right-hand member extension 4 is Φ 610mm, wall thickness 50mm, quality 1817Kg, cylindrical and the end face of the ring flange A1 of feed bend pipe left end, the bottom surface of gripper shoe 2, the cylindrical of the extension 4 of right-hand member and end face all need processing, and the end face of left end ring flange A1 and the circle end face of right-hand member extension 4 have Angular Dimension requirement, cylindrical and the end face of the ring flange A1 of feed bend pipe left end, the bottom surface of gripper shoe 2 can process to ensure the quality of products by boring and milling machine, the cylindrical of the extension 4 of right-hand member adopts frock, utilize vertical car size and end face, concrete processing method is as follows:
The first step, be first symmetrically welded two hangers 7 at the non-processing excircles interlude of the bend pipe 3 of feed bend pipe;
Second step, connect step, on platform, taking non-machined surface as thick benchmark, borrow accurate each portion surplus, mark respectively cylindrical line and the end face line of the ring flange A1 of feed bend pipe, the bottom surface line of gripper shoe 2, the cylindrical line of extension 4 and right-hand member upper thread;
The 3rd step, connect step, processing datum, feed bend pipe is lain on the rotary table of lathe, after the line centering marking by second step, compress, milling becomes cylindrical and the end face of ring flange A1, rotary table, the right side of the bottom surface of milling gripper shoe 2 and extension 4, then the centering benchmark of processing as turning at the cylindrical place milling one centering circle of extension 4, is drilled to the each hole on the upper each hole of ring flange A1 and gripper shoe 2 bottom surfaces;
The 4th step, connect step, the ring flange A1 of feed bend pipe is passed through to bolt, nuts and washers and frock are fixed together, then level up the left side of gripper shoe 2 bottom surfaces of frock bottom surface and feed bend pipe with pad, arranging cushion block 8 with frock vertical direction, pawl 6 is installed on cushion block 8, claw 6 on the claw 6 of workbench and cushion block 8 totally four form at an angle of 90 mutually four paws claw location, on lathe, a pair of claw 6 is clamped gripper shoe 2 and the frock of feed bend pipe bottom surface, another of lathe clamped the cylindrical of the bend pipe 3 of feed bend pipe after cushion block 8 is padded to claw 6, with the centering circle centering on end face and extension 4 cylindricals of extension 4, the centering datum level of extension 4 cylindricals of guarantee feed bend pipe is parallel with workbench, and the center line of extension 4 cylindricals is on lathe centre of gyration line, four paws claw clamping, the cylindrical of car extension 4 and end face, ensure dimensional tolerance, circularity and roughness requirement,
The 5th step, after the 4th step machines, utilize lifting appliance connect hanger 7 by processing after feed bend pipe be transported to territory, area to be transferred.
Part not in the detailed description of the invention is prior art.
The embodiment selecting in this article for open object of the present invention, currently thinks suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.

Claims (8)

1. a processing method for feed bend pipe for large-sized grinder, is characterized in that: described method specifically comprises the following steps:
The first step, first at non-processing excircles interlude at least two hangers of welding (7) of the bend pipe (3) of feed bend pipe;
Second step, connect step, on platform, taking non-machined surface as thick benchmark, borrow accurate each portion surplus, mark respectively the ring flange A(1 of feed bend pipe) cylindrical line and end face line, the bottom surface line of gripper shoe (2), the cylindrical line of extension (4) and right-hand member upper thread;
The 3rd step, connect step, processing datum, feed bend pipe is lain on the rotary table of lathe, after the line centering marking by second step, compress, milling becomes ring flange A(1) cylindrical and end face, rotary table, the right side of the bottom surface of milling gripper shoe (2) and extension (4), then the centering benchmark as turning processing at the cylindrical place milling one centering circle of extension (4), is drilled to ring flange A(1) each hole on upper each hole and gripper shoe (2) bottom surface;
The 4th step, connect step, by the ring flange A(1 of feed bend pipe) be fixed together by bolt and frock, on lathe, a pair of claw (6) is clamped gripper shoe (2) and the frock of feed bend pipe bottom surface, another of lathe clamped the cylindrical of the bend pipe (3) of feed bend pipe after cushion block (8) is padded to claw (6), with the centering circle centering on end face and extension (4) cylindrical of extension (4), turning extension (4) right-hand member cylindrical and end face;
The 5th step, after the 4th step machines, utilize lifting appliance connect hanger (7) by processing after feed bend pipe be transported to territory, area to be transferred.
2. the processing method of feed bend pipe for large-sized grinder according to claim 1, is characterized in that: the lathe in described the 3rd step is boring machine or machining center.
3. the processing method of feed bend pipe for large-sized grinder according to claim 1, is characterized in that: the lathe in described the 4th step is common vertical lathe or NC vertical lathe.
4. the processing method of feed bend pipe for large-sized grinder according to claim 1, it is characterized in that: the frock in described the 4th step comprises riser (5), ring flange B(9), fabrication hole (10) and base plate (11), described base plate (11) is square structure, on base plate (11), be interval with at least two risers (5), one end of described riser (5) is provided with the inclined-plane that acutangulates setting with base plate (11) above, is provided with ring flange B(9 on described inclined-plane).
5. the processing method of feed bend pipe for large-sized grinder according to claim 4, is characterized in that: described riser (5) is provided with at least one fabrication hole, described fabrication hole be shaped as circle or ellipse or polygon.
6. the processing method of feed bend pipe for large-sized grinder according to claim 4, is characterized in that: above described base plate (11), be provided with reinforcement.
7. the processing method of feed bend pipe for large-sized grinder according to claim 1, is characterized in that: between the claw (6) in described the 4th step and the bottom surface of gripper shoe (2), be provided with cushion block (8).
8. the processing method of feed bend pipe for large-sized grinder according to claim 1, is characterized in that: the lifting appliance in described the 5th step is overhead traveling crane.
CN201410154381.9A 2014-04-17 2014-04-17 A kind of processing method of large-sized grinder feed bend pipe Active CN103978343B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN107322027A (en) * 2017-07-14 2017-11-07 重庆江增船舶重工有限公司 The processing method and its boring or milling tool of turbo-charger gas inlet housing
CN110039210A (en) * 2019-02-28 2019-07-23 武汉船用机械有限责任公司 The welding method of cylindrical workpiece limiting tool
CN110340624A (en) * 2019-07-30 2019-10-18 中国铁建重工集团股份有限公司 Machining process of boring and milling machine for overturning bracket of cotton box
CN113059319A (en) * 2021-03-24 2021-07-02 贵州航天新力科技有限公司 Machining method of high-precision and difficult-to-position three-way pipe

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107322027A (en) * 2017-07-14 2017-11-07 重庆江增船舶重工有限公司 The processing method and its boring or milling tool of turbo-charger gas inlet housing
CN110039210A (en) * 2019-02-28 2019-07-23 武汉船用机械有限责任公司 The welding method of cylindrical workpiece limiting tool
CN110039210B (en) * 2019-02-28 2021-08-31 武汉船用机械有限责任公司 Welding method of cylindrical workpiece limiting tool
CN110340624A (en) * 2019-07-30 2019-10-18 中国铁建重工集团股份有限公司 Machining process of boring and milling machine for overturning bracket of cotton box
CN113059319A (en) * 2021-03-24 2021-07-02 贵州航天新力科技有限公司 Machining method of high-precision and difficult-to-position three-way pipe

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