CN104759903A - Clamp capable of ensuring perpendicularity between end surface of four-section installed and welded thin-wall cylindrical flange plate and axis - Google Patents
Clamp capable of ensuring perpendicularity between end surface of four-section installed and welded thin-wall cylindrical flange plate and axis Download PDFInfo
- Publication number
- CN104759903A CN104759903A CN201510163482.7A CN201510163482A CN104759903A CN 104759903 A CN104759903 A CN 104759903A CN 201510163482 A CN201510163482 A CN 201510163482A CN 104759903 A CN104759903 A CN 104759903A
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- CN
- China
- Prior art keywords
- circular arc
- hand thread
- thread clamping
- welded
- lathe chuck
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a clamp capable of ensuring perpendicularity between an end surface of a four-section installed and welded thin-wall cylindrical flange plate and an axis and relates to a clamp capable of ensuring perpendicularity between the end surface of the welded thin-wall cylindrical flange plate and the axis. The clamp is used for solving the problem that the tolerance value of the perpendicularity between the end surface of the four-section installed and welded thin-wall cylindrical flange plate and the axis is within FORMULA. Four lengthened arms are symmetrically arranged in a crossed manner, four front end circular-arc plates and four rear-end circular-arc plates are arranged in a space enclosed by the four lengthened arms; front and rear end circular-arc plates are welded at front end rear ends of long straight side surfaces of the lengthened arms respectively; the step end surfaces at the rear ends of the lengthened arms are matched and welded with the step end surface of a lathe chuck claw; the lathe chuck claw is connected with a threaded rod of the lathe chuck; left and right threaded clamping bases are welded at the two ends of a circular-arc-shaped spring steel belt, and the left and right threaded clamping bases are connected with left and right threaded locking bolts; spring chuck ring assemblies are arranged on four front-end circular-arc plates in a sleeving mode. The clamp can be used for ensuring the perpendicularity between the end surface of the four-section installed and welded thin-wall cylindrical flange plate and the axis.
Description
Technical field
The present invention relates to a kind of fixture that can ensure the rear thin cylinder ring flange end face of welding and axis verticality, belong to metal cutting process and jig Design technical field.
Background technology
(adopt three road annulus pass weld to form four sections of assembly welding thin cylinders by four cylindrical sections for the four sections of assembly welding thin cylinders having an end face with ring flange together, one end of four sections of assembly welding thin cylinders and ring flange end face are welded as a whole), need after welding ring flange end to be carried out to the operation processing such as recessing, form tolerance requires that the squareness tolerance of ring flange end face relative axis is
originally fixture axial length only has 200mm, four sections of assembly welding thin cylinder non-solder end chucks can only be clamped, two end faces (two end faces after namely four cylindrical sections adopt three road annulus pass weld together) of four sections of assembly welding thin cylinders, endoporus and cylindrical all need turning, so end face can not hold location by lathe tail topmast; On the other hand, because four sections of assembly welding thin cylinder inwalls are all with the journal stirrup of projection, so internal expanding fixture can not be adopted.After four sections of assembly welding thin cylinder welding, due to welding deformation, axis departs from center, so when the non-flange end that fixture clamps four sections of assembly welding thin cylinders is a bit of, cause other three sections of cylinder and ring flange around circle swing, finally cause two of four sections of assembly welding thin cylinders end faces and axis verticality overproof, worst error is
serious overproof defective, disqualification rate is about 20%.Price before the turning of each four sections of assembly welding thin cylinders is about 10000 yuan, thus often overproof one will lose about 10000 yuan, annual economic loss is greatly about about 30 ~ 500,000 yuan.In order to reduce the loss, ensure part shape dimensional tolerance, being badly in need of a kind of fixture that can ensure four sections of assembly welding cylinder flange dish end faces and axis verticality.
Summary of the invention
The object of this invention is to provide a kind of fixture that can ensure four sections of assembly welding thin cylinder ring flange end faces and axis verticality, adopt prior art cannot ensure that four sections of assembly welding thin cylinder ring flange end faces and axis verticality tolerance value exist to solve
within problem.
For achieving the above object, the technical scheme taked is as follows in the present invention:
Can ensure the fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality, it comprises arc long-armed combination card assembly and spring arch clasp assembly; Described arc long-armed combination card assembly comprises four nose circle arcs, four extension arms and four rear end circular arc plates; Described spring arch clasp assembly comprises four circular arc spring steel bands, four left hand thread clamping seats, about four screw-threaded coupling bolts and four right-hand thread clamping seats; Four extension arms are that cross-shaped symmetrical is arranged, and four nose circle arcs are that cross-shaped symmetrical arranges and is arranged in space that four extension arms surround, and four rear end circular arc plates are that cross-shaped symmetrical arranges and is arranged in space that four extension arms surround; Each nose circle arc is welded on the front end of corresponding lengthening brachium straight sided, and each rear end circular arc plate is welded on the rear end of corresponding lengthening brachium straight sided; The rear end face of four extension arms is step end face, and the step end face of four extension arm rear ends matches with the step end face of four Lathe chuck jaw and welds, and four Lathe chuck jaw are connected with four screw rods of lathe chuck;
Each circular arc spring steel band one end welding left hand thread clamping seat, each circular arc spring steel band other end welding right-hand thread clamping seat, and often the left hand thread clamping seat of adjacent two circular arc spring steel bands and right-hand thread clamping seat are disposed adjacent, often the left hand thread clamping seat of adjacent two circular arc spring steel bands is connected with left and right screw-threaded coupling bolt with right-hand thread clamping seat; Spring arch clasp assembly is sleeved on the exterior arc surface of four nose circle arcs.
The present invention relative to the beneficial effect of prior art is: after the present invention can ensure the turning of four sections of assembly welding thin cylinders, and four sections of assembly welding thin cylinder ring flange end faces and axis verticality tolerance value exist
within, while raising product percent of pass 20%, single-piece work expense saving about 10000 yuan can also be made.
Accompanying drawing explanation
Fig. 1 is the fixture front view that can ensure four sections of assembly welding thin cylinder ring flange end faces and axis verticality of the present invention;
Fig. 2 is Fig. 1 left view;
Fig. 3 is arc long-armed combination card assembly front view;
Fig. 4 is Fig. 3 left view;
Fig. 5 is spring arch clasp assembly front view;
Fig. 6 is Fig. 5 top view;
Fig. 7 is nose circle arc front view;
Fig. 8 is rear end circular arc plate front view;
Fig. 9 is the A partial enlarged drawing of Fig. 1;
Figure 10 is extension arm front view;
Figure 11 is workpiece front view, and in figure, the position of three the arrow indications in B place is annular weld bead.
In figure, nose circle arc 1-1, extension arm 1-2, rear end circular arc plate 1-3, Lathe chuck jaw 1-4, lathe chuck 1-5, groove one 1-6, groove two 1-7, shallow slot 1-8, circular arc spring steel band 2-1, left hand thread clamping seat 2-2, left and right screw-threaded coupling bolt 2-3, right-hand thread clamping seat 2-4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Fig. 1 ~ Figure 10, can ensure the fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality, it comprises arc long-armed combination card assembly and spring arch clasp assembly; Described arc long-armed combination card assembly comprises four nose circle arc 1-1, four extension arm 1-2 and four rear end circular arc plate 1-3; Described spring arch clasp assembly comprises four circular arc spring steel band 2-1, four left hand thread clamping seat 2-2, about four screw-threaded coupling bolt 2-3 and four right-hand thread clamping seat 2-4; Four extension arm 1-2 are that cross-shaped symmetrical is arranged, four nose circle arc 1-1 are that cross-shaped symmetrical arranges and is arranged in space that four extension arm 1-2 surround, and four rear end circular arc plate 1-3 are that cross-shaped symmetrical arranges and is arranged in space that four extension arm 1-2 surround; Each nose circle arc 1-1 is welded on the front end of the corresponding long straight sided of extension arm 1-2, each rear end circular arc plate 1-3 is welded on the rear end of the corresponding long straight sided of extension arm 1-2, surrounds a cylinder respectively by four nose circle arc 1-1 and four rear end circular arc plate 1-3; The rear end face of four extension arm 1-2 is step end face, and the step end face of four extension arm 1-2 rear ends matches with the step end face of four Lathe chuck jaw 1-4 and welds, and four Lathe chuck jaw 1-4 are connected with four screw rods of lathe chuck 1-5;
Each circular arc spring steel band 2-1 one end welding left hand thread clamping seat 2-2, each circular arc spring steel band 2-1 other end welding right-hand thread clamping seat 2-4, and often the left hand thread clamping seat 2-2 of adjacent two circular arc spring steel band 2-1 and right-hand thread clamping seat 2-4 is disposed adjacent, often the left hand thread clamping seat 2-2 of adjacent two circular arc spring steel band 2-1 is connected with left and right screw-threaded coupling bolt 2-3 with right-hand thread clamping seat 2-4; Spring arch clasp assembly is sleeved on the exterior arc surface of four nose circle arc 1-1, simultaneously stressed when ensureing four extension arm 1-2 card engaging workpieces, makes four Lathe chuck jaw 1-4 uniform stresseds, avoids the single stressed Lathe chuck jaw 1-4 that causes to rupture.
Be further, as shown in Fig. 1, Fig. 7, Fig. 8, the exterior arc surface centre position of four described nose circle arc 1-1 is processed with one in the axial direction respectively for groove one 1-6 assembled with extension arm 1-2, guarantees that nose circle arc 1-1 and extension arm 1-2 assembles firmly; The exterior arc surface centre position of four described rear end circular arc plate 1-3 is processed with one in the axial direction respectively for groove two 1-7 assembled with extension arm 1-2, guarantees that rear end circular arc plate 1-3 and extension arm 1-2 assembles firmly.
Further, as shown in Figure 1, Figure 10 shows, the described long straight sided of extension arm 1-2 is processed with a shallow slot 1-8 near front end place, for the installation and removal of spring arch clasp assembly.
Operation principle of the present invention:
As shown in Fig. 1 ~ Figure 11, four Lathe chuck jaw 1-4 and lathe chuck 1-5 are all that lathe carries standard component, four Lathe chuck jaw 1-4 are connected with lathe chuck 1-5 by four screw rods on lathe chuck 1-5, and four Lathe chuck jaw 1-4 can be moved radially along lathe chuck 1-5 by the screw rod of four on lathe chuck 1-5 on lathe chuck 1-5 end face.When four Lathe chuck jaw 1-4 move to direction, the lathe chuck 1-5 center of circle, workpiece is clamped, when workpiece unclamps to when moving away from direction, the lathe chuck 1-5 center of circle by four Lathe chuck jaw 1-4.
Spring arch clasp assembly is sleeved on the exterior arc surface of four nose circle arc 1-1, by dextrorotation or left-handed rotation left and right screw-threaded coupling bolt 2-3, nose circle arc 1-1 can be clamped or unclamp, auxiliary nose circle arc 1-1 clamping workpiece, make four Lathe chuck jaw 1-4 uniform stresseds, avoid single stressed excessive and damage.
The fixture course of work order that can ensure four sections of assembly welding thin cylinder ring flange end faces and axis verticality of the present invention is, first left-handed left and right screw-threaded coupling bolt 2-3, spring arch clasp module diameter is increased, secondly the screw rod one by one on left-handed lathe chuck 1-5, four Lathe chuck jaw 1-4 are moved along lathe chuck 1-5 radial direction to away from direction, the lathe chuck 1-5 center of circle, the round tube inside diameter that the round tube inside diameter that four nose circle arc 1-1 are surrounded and four rear end circular arc plate 1-3 surround is greater than described thin cylinder external diameter respectively, workpiece (four sections of assembly welding thin cylinder ring flanges) is put into the pipe surrounded by four nose circle arc 1-1 and the pipe surrounded by four rear end circular arc plate 1-3, screw rod one by one on dextrorotation lathe chuck 1-5, Lathe chuck jaw 1-4 is moved along lathe chuck 1-5 radial direction towards direction, the lathe chuck 1-5 center of circle, until workpiece is clamped, thirdly dextrorotation left and right screw-threaded coupling bolt 2-3, spring arch clasp module diameter is reduced gradually, until workpiece clamps by four nose circle arc 1-1, work pieces process is complete, according to the reverse operation of said sequence, workpiece can be unloaded, complete a working cycles.The wall thickness of described thin cylinder is 6mm or 8mm.
Claims (3)
1. can ensure a fixture for four sections of assembly welding thin cylinder ring flange end faces and axis verticality, it is characterized in that: it comprises arc long-armed combination card assembly and spring arch clasp assembly; Described arc long-armed combination card assembly comprises four nose circle arcs (1-1), four extension arms (1-2) and four rear ends circular arc plate (1-3); Described spring arch clasp assembly comprises four circular arc spring steel bands (2-1), four left hand thread clamping seats (2-2), about four screw-threaded coupling bolts (2-3) and four right-hand thread clamping seats (2-4); Four extension arms (1-2) are arranged in cross-shaped symmetrical, four nose circle arcs (1-1) arrange in cross-shaped symmetrical and are arranged in space that four extension arms (1-2) surround, and four rear ends circular arc plate (1-3) arrange in cross-shaped symmetrical and are arranged in space that four extension arms (1-2) surround; Each nose circle arc (1-1) is welded on the front end of corresponding extension arm (1-2) long straight sided, and each rear end circular arc plate (1-3) is welded on the rear end of corresponding extension arm (1-2) long straight sided; The rear end face of four extension arms (1-2) is step end face, the step end face of four extension arm (1-2) rear ends matches with the step end face of four Lathe chuck jaw (1-4) and welds, and four Lathe chuck jaw (1-4) are connected with four screw rods of lathe chuck (1-5);
Each circular arc spring steel band (2-1) one end welding left hand thread clamping seat (2-2), each circular arc spring steel band (2-1) other end welding right-hand thread clamping seat (2-4), and often the left hand thread clamping seat (2-2) of adjacent two circular arc spring steel bands (2-1) and right-hand thread clamping seat (2-4) are disposed adjacent, often the left hand thread clamping seat (2-2) of adjacent two circular arc spring steel bands (2-1) is connected with left and right screw-threaded coupling bolt (2-3) with right-hand thread clamping seat (2-4); Spring arch clasp assembly is sleeved on the exterior arc surface of four nose circle arcs (1-1).
2. the fixture that can ensure four sections of assembly welding thin cylinder ring flange end faces and axis verticality according to claim 1, it is characterized in that: the exterior arc surface centre position of four described nose circle arcs (1-1) is processed with a groove one (1-6) for assembling with extension arm (1-2) in the axial direction respectively, the exterior arc surface centre position of four described rear ends circular arc plate (1-3) is processed with a groove two (1-7) for assembling with extension arm (1-2) in the axial direction respectively.
3. the fixture that can ensure four sections of assembly welding thin cylinder ring flange end faces and axis verticality according to claim 1 and 2, it is characterized in that: described extension arm (1-2) long straight sided is processed with a shallow slot (1-8) near front end place, for the installation and removal of spring arch clasp assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163482.7A CN104759903B (en) | 2015-04-09 | 2015-04-09 | Can guarantee that the fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163482.7A CN104759903B (en) | 2015-04-09 | 2015-04-09 | Can guarantee that the fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759903A true CN104759903A (en) | 2015-07-08 |
| CN104759903B CN104759903B (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163482.7A Active CN104759903B (en) | 2015-04-09 | 2015-04-09 | Can guarantee that the fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality |
Country Status (1)
| Country | Link |
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| CN (1) | CN104759903B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274283A (en) * | 2018-01-26 | 2018-07-13 | 宝鸡石油机械有限责任公司 | A kind of processing method that arc board group closes size |
| CN111716055A (en) * | 2019-03-20 | 2020-09-29 | 中国兵器工业集团航空弹药研究院有限公司 | Special clamp for pre-welding flat plate and support |
| CN113814637A (en) * | 2021-10-08 | 2021-12-21 | 安徽达必立新能源科技有限公司 | Auxiliary centering device for welding tower drum flange |
| CN113814690A (en) * | 2021-09-15 | 2021-12-21 | 北京天地玛珂电液控制系统有限公司 | Elastic retainer ring fastening and restoring device |
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| US4214766A (en) * | 1977-07-20 | 1980-07-29 | Wilhelm Hainbuch GmbH & Co. | Collet |
| CN102500761A (en) * | 2011-11-02 | 2012-06-20 | 沈阳飞机工业（集团）有限公司 | Machining process for slender shaft type part of unmachined outer circle |
| CN202447705U (en) * | 2011-12-22 | 2012-09-26 | 天津利德尔汽车零部件有限公司 | Thin-walled metal pipe fixing tool |
| CN203357099U (en) * | 2013-07-10 | 2013-12-25 | 芜湖市同力太阳能有限责任公司 | Clamp for clamping sleeve type parts |
| CN203542083U (en) * | 2013-09-18 | 2014-04-16 | 中国电子科技集团公司第四十八研究所 | Machining tool for inner circles of large-diameter thin-walled cylinders |
| CN104271293A (en) * | 2012-03-14 | 2015-01-07 | 塔埃科技有限公司 | Collet chuck for winder |
| CN204504785U (en) * | 2015-04-09 | 2015-07-29 | 哈尔滨建成集团有限公司 | The fixture of four sections of assembly welding thin cylinder ring flange end faces and axis verticality can be ensured |
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2015
- 2015-04-09 CN CN201510163482.7A patent/CN104759903B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4214766A (en) * | 1977-07-20 | 1980-07-29 | Wilhelm Hainbuch GmbH & Co. | Collet |
| CN102500761A (en) * | 2011-11-02 | 2012-06-20 | 沈阳飞机工业（集团）有限公司 | Machining process for slender shaft type part of unmachined outer circle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274283A (en) * | 2018-01-26 | 2018-07-13 | 宝鸡石油机械有限责任公司 | A kind of processing method that arc board group closes size |
| CN111716055A (en) * | 2019-03-20 | 2020-09-29 | 中国兵器工业集团航空弹药研究院有限公司 | Special clamp for pre-welding flat plate and support |
| CN113814690A (en) * | 2021-09-15 | 2021-12-21 | 北京天地玛珂电液控制系统有限公司 | Elastic retainer ring fastening and restoring device |
| CN113814637A (en) * | 2021-10-08 | 2021-12-21 | 安徽达必立新能源科技有限公司 | Auxiliary centering device for welding tower drum flange |
| CN113814637B (en) * | 2021-10-08 | 2023-10-31 | 蓬莱大金海洋重工有限公司 | Auxiliary centering device for welding tower barrel flange |
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| CN104759903B (en) | 2016-10-12 |
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