CN101069948A - Method for capturing and processing large frame structural member using coordinate boring machine locksmith-boring procedure coperation to scribe - Google Patents
Method for capturing and processing large frame structural member using coordinate boring machine locksmith-boring procedure coperation to scribe Download PDFInfo
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- CN101069948A CN101069948A CN 200710024338 CN200710024338A CN101069948A CN 101069948 A CN101069948 A CN 101069948A CN 200710024338 CN200710024338 CN 200710024338 CN 200710024338 A CN200710024338 A CN 200710024338A CN 101069948 A CN101069948 A CN 101069948A
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Abstract
The invention relates to a method to process large frame structural parts. It uses jig borer and combines clamping and boring to mark and capture. The steps are: rough reference, process block setting holes on workpiece, self-made cylinder supporting clod, correct waiting process surface, rough and finish planning of each supporting clod, cross-process cooperation of clamping and boring and process each surface and hole. Large platform is necessary for putting when marking surfaces or lines and correcting horizontal line for large workpieces. Using borer as platform for cooperation of clamping and boring, the invention can resolves the difficulty of having on large platform for condition limits.
Description
Technical field
The present invention relates to a kind of processing method of large-scale framework junction part, utilize the method for jig boring machine pincers, borer preface cooperation line centering machining large framework junction part specifically.
Background technology
Large-scale framework junction part general appearance size is bigger, the planform complexity, and during by welding processing, welding deformation is big, and the error of generation is bigger, also can't a clamping centering processing.In the prior art, large-scale framework junction part generally is difficult to process and assemble, and integral rigidity and heat endurance are relatively poor after the process and assemble.For example, MA mirror cell supportive body skeleton is made up of seven big parts in the LAMOST project engineering (Da Tian district area multiple target fiber spectrum astronomical telescope), each support component forms by section bar such as channel-section steel, I-steel and sheet material welding, by to each process and assemble that supports conjunction plane, make overall structure possess good rigidity and heat endurance.Because each support component appearance and size is bigger, the longest have 4.89m and a planform complexity, the greatest circle arc dia reaches 5.96m, each support component welding deformation is bigger, and the full-size error can't be taken into account each surplus line centering processing according to design basis about 10mm.
Summary of the invention
The objective of the invention is to overcome large-scale framework junction part because of welding deformation causes can't a clamping centering processing a kind of method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part of proposing of shortcoming.
Purpose of the present invention can be achieved through the following technical solutions:
Utilize the method for jig boring machine pincers borer preface cooperation line centering machining large framework junction part, carry out according to the following steps:
1. thick school benchmark is loaded onto chuck on mobile boring spindle, in the middle of line centering workpiece 2 sides and the workpiece 1 the gusset face at 0.5～2mm, with height gauge at face E, F and the positive horizontal line of workpiece 1 arc surface colonel, and on each combined member process support piece installing hole;
2. make the cylinder back-up block, the back-up block cylindrical is opened a grade size less than workpiece 2 lateral dimension less than gusset in the middle of the workpiece 1, and determines the thickness of back-up block G, H with the height dimension between the gusset face in the middle of 2 of height gauge measuring workpieces and the workpiece 1;
3. by the back-up block installing hole on each combined member each cylinder back-up block is fixed on each combined member;
4. on the knife rest of planer, load onto scriber, proofread and correct to be processed B, C,, and utilize the thick adjustable cast iron planes cylinder of planer back-up block, guarantee each supporting surface in one plane with scribing block level of corrections line;
5. clamp the cooperation of borer preface, process each to be processed and hole:
A. use machine tool chief axis rectifying plane B, C at grade, utilize the workbench left rotation and right rotation, install and measure head at machine tool chief axis and proofread and correct each face E, F, draw the error of left and right actual angle size of workpiece and figure paper size, and then the allowance of definite E, F face;
B. according to about during 53 ° of 49 ' angles divide, find out and delineate work centre line, coordinates computed size is then done two groups of dowel holes on 2 of workpiece, guarantee the identical hole left-right symmetry of position dimension;
C. insert straight pin J processing in the dowel hole, 53 ° 49 of rotary table ', two groups of alignment pin cylindricals mill face E, F respectively about proofreading and correct respectively on same straight line, and alignment pin cylindrical and the distance between face E, the F symmetrical about assurance equate;
D. rectifying plane E, F and center groove according to drawing institute dimensioning, calculate the coordinate dimension of 4 hole a and 4 hole b, with the center line is the center, 4 hole a and 4 hole b are processed in left and right sides translation respectively, boring and milling face A, B to figure paper size, and guarantee that machined surface A, B, C, D are parallel.
Purpose of the present invention can also further realize by following technical measures:
The aforesaid method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, wherein step 1. in, at the centre or the side process support piece installing hole of each combined member.
The aforesaid method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, wherein step 1. in, the gusset face is at 1mm in the middle of line centering workpiece 2 sides and the workpiece 1.
The aforesaid method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, wherein state step 3. in, utilize screw, pad and nut each cylinder back-up block to be fixed on the middle gusset of each combined member or on the side.
The aforesaid method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, wherein step 4. in, when utilizing the thick adjustable cast iron planes cylinder of planer back-up block,, and guarantee at grade face B, C.
The aforesaid method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, wherein step 4. in, on workpiece 2, do 4～Φ 10H7 dowel hole, straight pin J is corresponding with dowel hole.
Advantage of the present invention is: when (1) large-scale workpiece is drawn processing upper thread and level of corrections line, need macrotype platform to put, the present invention utilizes boring table for the cooperation of platform pincers borer preface, can solve the problem that does not have macrotype platform because of the limitation of conditions.(2) be example with this workpiece, large-scale workpiece has exceeded the range of work of general lathe, and application of the present invention can improve the range of work of lathe.(3) be example with this workpiece, being shifted to add needs common datum level man-hour, and the present invention provides reference for solving the solution that adds the datum level in man-hour that is shifted.
Description of drawings
Fig. 1 is the processing schematic diagram of the embodiment of the invention one.
The specific embodiment
Embodiment one
Present embodiment is a method of utilizing jig boring machine pincers, borer preface cooperation line centering machining large framework junction part, and the large-scale framework junction part of present embodiment carries out as shown in Figure 1 in the specific implementation according to the following steps:
Workpiece 1 is 140 * 80 * 5.5 I-steel, workpiece 2 is 80 * 43 * 5 channel-section steels, on mobile boring spindle, load onto chuck, the gusset face is at 1mm in the middle of line centering workpiece 2 sides and the workpiece 1, with height gauge at face E, F and the positive horizontal line of workpiece 1 arc surface colonel, and on each combined member process support piece installing hole.
According to the design feature of circular arc support frame part, utilize workpiece 1 middle gusset face and workpiece 2 sides to make the back-up block datum clamp face.On workpiece 1 intermediate ribs, bore 5～Φ 17mm hole respectively, bore 6～Φ 13mm hole in workpiece 2 sides.
Self-control 5～Φ, 100 * 80mm cylinder back-up block G and 6～Φ, 70 * 30mm cylinder back-up block H.
Done 5～Φ 17mm hole by workpiece 1, cylinder back-up block G has been fastened on the workpiece 1 middle gusset with M16 soket head cap screw, pad and M16 hex nut.By having done 6～Φ 13mm hole on workpiece 2 sides, cylinder back-up block H is fastened on workpiece 2 sides with M12 soket head cap screw, pad and M12 hex nut.
Proofread and correct to be processed by the 8m metal-planing machine, thick adjustable cast iron planes cylinder back-up block G, H guarantee each supporting surface in one plane, as the datum level of secondary clamping displacement processing.
When digging cylinder back-up block datum level, face B, face C are dug, thickness adds the rectifying plane in man-hour to size as displacement.
Characteristic according to accessory size and numerical control displacement jig boring machine is processed 4～Φ, 10 dowel holes with end mill head left-right symmetry on workpiece 2, inserts Φ 10 straight pin J, simultaneously processing work left end 2～Φ, 17 holes and 2～Φ, 106 holes and step surface A.Proofread and correct the cylinder alignment pin behind same plane by displacement, according to 2～Φ 17,2～Φ, 106 holes and the face D of its coordinate dimension processing right-hand member.
By revolve boring table counterclockwise 53 ° 49 ', proofread and correct each 2～Φ, 10 straight pin of left end on same straight line, with dish milling cutter machined surface F to size.Turn clockwise again after workbench resets 53 ° 49 ', with same datum level, same processing method, proofread and correct right-hand member 2～Φ 10 straight pins, machined surface E is to size.The symmetry that has guaranteed two machined surface E, F thus is consistent with angle.
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.
Claims (6)
1. utilize the boring of jig boring machine pincers to stride the method for operation line centering machining large framework junction part, it is characterized in that: carry out according to the following steps:
1. thick school benchmark, on mobile boring spindle, load onto chuck, the gusset face is at 0.5～2mm in the middle of line centering workpiece (2) side and the workpiece (1), with height gauge at face (E, F) and the positive horizontal line of workpiece (1) arc surface colonel, and on each combined member process support piece installing hole;
2. make the cylinder back-up block, the back-up block cylindrical is less than workpiece (2) lateral dimension, open a grade size less than gusset in the middle of the workpiece (1), and determine the thickness of back-up block (G, H) with the height dimension between the gusset face in the middle of height gauge measuring workpieces (2) face and the workpiece (1);
3. by the back-up block installing hole on each combined member each cylinder back-up block is fixed on each combined member;
4. on the knife rest of planer, load onto scriber, proofread and correct to be processed (B, C),, and utilize the thick adjustable cast iron planes cylinder of planer back-up block, guarantee each supporting surface in one plane with scribing block level of corrections line;
5. clamp the cooperation of borer preface, process each to be processed and hole:
A. use machine tool chief axis rectifying plane (B, C) at grade, utilize the workbench left rotation and right rotation, install and measure head at machine tool chief axis and proofread and correct each face (E, F), draw the error of left and right actual angle size of workpiece (2) and figure paper size, and then the allowance of definite face (E, F);
B. according to about during 53 ° of 49 ' angles divide, find out and delineate work centre line, the coordinates computed size is done two groups of dowel holes on workpiece (2) face then, guarantees the identical hole left-right symmetry of position dimension;
C. insert straight pin (J) in the dowel hole processing, 53 ° 49 of rotary table ', two groups of alignment pin cylindricals mill face (E, F) respectively about proofreading and correct respectively on same straight line, and alignment pin cylindrical and the distance between the face (E, F) symmetrical about assurance equate;
D. rectifying plane (E, F) and center groove, according to drawing institute dimensioning, calculate the coordinate dimension in 4 holes (a) and 4 holes (b), with the center line is the center, 4 holes (a) and 4 holes (b) are processed in left and right sides translation respectively, boring and milling face (A, B) is to the figure paper size, and assurance machined surface (A, B, C, D) is parallel.
2. the method for utilizing jig boring machine pincers borer preface cooperation line centering machining large framework junction part as claimed in claim 1 is characterized in that: described step 1. in, at the centre or the side process support piece installing hole of each combined member.
3. the method for utilizing jig boring machine pincers borer preface cooperation line centering machining large framework junction part as claimed in claim 1 is characterized in that: described step 1. in, the gusset face is at 1mm in the middle of line centering workpiece (2) side and the workpiece (1).
4. the method for utilizing jig boring machine pincers borer preface cooperation line centering machining large framework junction part as claimed in claim 1, it is characterized in that: described step 3. in, utilize screw, pad and nut each cylinder back-up block to be fixed on the middle gusset of each combined member or on the side.
5. the method for utilizing jig boring machine pincers borer preface cooperation line centering machining large framework junction part as claimed in claim 1, it is characterized in that: described step 4. in, when utilizing the thick adjustable cast iron planes cylinder of planer back-up block, (B, C) digs with face, and guarantees at grade.
6. the method for utilizing jig boring machine pincers borer preface cooperation line centering machining large framework junction part as claimed in claim 1, it is characterized in that: described step 4. in, do 4～Φ 10H7 dowel hole on workpiece (2), straight pin (J) is corresponding with dowel hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710024338 CN101069948A (en) | 2007-06-13 | 2007-06-13 | Method for capturing and processing large frame structural member using coordinate boring machine locksmith-boring procedure coperation to scribe |
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| CN 200710024338 CN101069948A (en) | 2007-06-13 | 2007-06-13 | Method for capturing and processing large frame structural member using coordinate boring machine locksmith-boring procedure coperation to scribe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157825A (en) * | 2013-02-21 | 2013-06-19 | 鸿特机械发展(上海)有限公司 | Method of assembly and precision calibration of numerical control four-axis ring die deep hole drill machine tool |
| CN111001861A (en) * | 2019-12-18 | 2020-04-14 | 西安航天动力机械有限公司 | Numerical control machining method for cavity in large aluminum alloy skirt body |
| CN111633388A (en) * | 2020-06-12 | 2020-09-08 | 重庆水轮机厂有限责任公司 | Method for machining small lug hole of control ring of through-flow turbine |
-
2007
- 2007-06-13 CN CN 200710024338 patent/CN101069948A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157825A (en) * | 2013-02-21 | 2013-06-19 | 鸿特机械发展(上海)有限公司 | Method of assembly and precision calibration of numerical control four-axis ring die deep hole drill machine tool |
| CN103157825B (en) * | 2013-02-21 | 2015-06-24 | 鸿特机械发展(上海)有限公司 | Method of assembly and precision calibration of numerical control four-axis ring die deep hole drill machine tool |
| CN111001861A (en) * | 2019-12-18 | 2020-04-14 | 西安航天动力机械有限公司 | Numerical control machining method for cavity in large aluminum alloy skirt body |
| CN111001861B (en) * | 2019-12-18 | 2020-09-22 | 西安航天动力机械有限公司 | Numerical control machining method for cavity in large aluminum alloy skirt body |
| CN111633388A (en) * | 2020-06-12 | 2020-09-08 | 重庆水轮机厂有限责任公司 | Method for machining small lug hole of control ring of through-flow turbine |
| CN111633388B (en) * | 2020-06-12 | 2022-02-08 | 重庆水轮机厂有限责任公司 | Method for machining small lug hole of control ring of through-flow turbine |
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Owner name: NANJING NANQI AUTOMOBILE EQUIPMENT CO., LTD. Free format text: FORMER OWNER: NANJING AUTOMOBILE GROUP CO. LTD. Effective date: 20080509 |
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Effective date of registration: 20080509 Address after: 120 Hongshan Road, Jiangsu, Nanjing Province, China: 210028 Applicant after: Nanjing Nanqi Automobile Equipment Co., Ltd. Address before: Postal code 331, Central Road, Nanjing, Jiangsu: 210037 Applicant before: Nanjing Automobile Group Co., Ltd. |
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