CN102179661A - Method for machining frame of cold continuous rolling mill - Google Patents
Method for machining frame of cold continuous rolling mill Download PDFInfo
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- CN102179661A CN102179661A CN2011100983964A CN201110098396A CN102179661A CN 102179661 A CN102179661 A CN 102179661A CN 2011100983964 A CN2011100983964 A CN 2011100983964A CN 201110098396 A CN201110098396 A CN 201110098396A CN 102179661 A CN102179661 A CN 102179661A
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Abstract
The invention discloses a method for machining a frame of a cold continuous rolling mill. A main body of the frame is a rectangle of which the middle part is provided with a window, and one end of the main body is provided with a bed plate. The method comprises the following steps of: 1), flatly placing the two sides of the frame on an operating platform to finish machining a window position and a bed plate position; and 2), overturning the frame by 90 DEG around the central line of the frame, laterally erecting, bearing a bearing reference plane by using a square box, turning the side face of the frame which is laterally erected according to the position data in the step 1), and tightly clamping and fixing the frame to finish machining two large side faces of the frame. By the method, the two large side faces of the frame are machined in a lateral erection mode, are positioned in a vertical free state when the frame is subjected to position adjustment and is machined, and are machined without the influence of gravity and a bearer, so that the parallelism accuracy of the two large side faces of the frame is ensured.
Description
Technical field
The present invention relates to a kind of processing method of rolling-mill housing, particularly a kind of processing method of cold continuous rolling frame.
Background technology
The bracket height of large-scale cold continuous rolling can reach about 10m, thickness can reach about 600mm, length can reach about 2～3m, about 100 tons of weight, ratio of height to thickness is big, weight is big, and requirement on machining accuracy is higher, and especially the perpendicularity required precision of the perpendicularity of the morpheme at window position, dimensional requirement and base anchor bottom surface and window center line and base anchor bottom surface and frame lateral surface is all higher.At present, the machine-tooled method of large-scale cold continuous rolling frame is: big the level in the both sides of frame is placed on the workbench that mills at gantry, adopt gantry to mill processing, the machining accuracy at window position can reach designing requirement usually, the perpendicularity of relative window of base anchor and frame outer surface also can reach designing requirement, but the depth of parallelism that the frame both sides are big can not reach designing requirement, trace it to its cause for: because the weight of frame is big, add man-hour, can be because of gravity produce flexural deformation, supporting-point is limited simultaneously, and it is inhomogeneous that whole removing is removed surplus, be easy to generate distortion after the processing, influenced the parallelism precision of both sides big; Moreover because the accuracy limitations of lathe, the perpendicularity precision of the perpendicularity of the relative window center line in base anchor bottom surface and big of relative frame both sides is not high yet.
Summary of the invention
The present invention provides a kind of processing method of cold continuous rolling frame for solving the technical problem that exists in the known technology, and this method can guarantee the parallelism precision of big of frame both sides.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of processing method of cold continuous rolling frame, the main body of described frame is the middle rectangle that is provided with window, the one end is provided with base anchor, may further comprise the steps: one) the big face in the both sides of frame is lain on the workbench, support with adjustable sizing block, and the frame of leveling after keeping flat, clamp frame, finish the processing at window position and base anchor position; And on big of the side of frame, process all annular centering datum levels around window, and, also process the centering face in the least significant end of frame, on side elevation, process two places supporting datum level; With lathe carry that dial gauge is measured and the record datum level in 2～14 positional values and the position data of centering face; Two) frame is edge-on around 90 ° of its center line upsets, support its supporting datum level with square chest, according to step 1) in position data, align the side of edge-on frame, frame is fixedly clamped, finish the processing of big of two sides of frame.
The present invention can also adopt following technical scheme:
Described step 1) processing at base anchor position comprises the processing of base anchor bottom surface in, and the processing of described base anchor bottom surface may further comprise the steps:
1) preprocessing, stay allowance, and be datum level, after the centering frame with the side of window, centering datum level vertical of processing on the bottom surface of base anchor with the window center line, lathe carries the position data that base anchor centering datum level two ends were measured and write down to dial gauge;
2) frame is kept flat for 180 ° around its center line upset, as datum level, after the centering frame, lathe carries the position data that base anchor centering datum level two ends were measured and write down to dial gauge once more with the datum level in the step 1);
3) calculating: with step 2) the data correspondence that obtains deducts the data that step 1) obtains, and obtains difference n;
4) in the height point side tool setting of base anchor bottom surface, the side excision n/2 that the base anchor bottom surface is high.
Described step 1) processing at base anchor position comprises the processing of base anchor bottom surface in, the processing of described base anchor bottom surface adopts steel wire to hang the perpendicularity of plummet and the relative platen in photoelectricity miking base anchor bottom surface, and by machined it is revised, the perpendicularity of the relative platen in base anchor bottom surface is met design requirement.
When frame keeps flat, do not establish supporter below the base anchor.
Advantage and good effect that the present invention has are: adopt edge-on mode to process big of frame both sides, frame is being done the position adjustment and is being added man-hour, big of both sides all are in the vertical free state, the processing that both sides are big is not subjected to the influence of gravity and support, has guaranteed the parallelism precision of frame both sides big; Further, by artificial employing plumbing and adjust to guarantee the perpendicularity of the relative platen in base anchor bottom surface, improved the perpendicularity precision of big of relative frame both sides, base anchor bottom surface; Process the error of perpendicularity of having eliminated the relative window center line in base anchor bottom surface that causes owing to the precision of lathe own by compensation, improved the perpendicularity precision of the relative window center line in base anchor bottom surface.
Description of drawings
Fig. 1 is the invention process step 1) schematic diagram;
Fig. 2 is the invention process step 1) schematic diagram;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the invention process step 2) schematic diagram;
Fig. 5 is that the present invention adopts steel wire to hang the schematic diagram of plummet and the relative platen perpendicularity in miking base anchor bottom surface;
Fig. 6 is the right view of Fig. 5;
Fig. 7 is the schematic diagram of correction frame of the present invention base anchor bottom surface and window center line perpendicularity.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
A kind of processing method of cold continuous rolling frame sees also Fig. 1～Fig. 7.
Same as the prior art, after roughing, each size face single face of frame stays after the allowance of 3～4mm, carries out fine finishining.Step is as follows:
Big 1-1 lies on the workbench that mills at gantry with the both sides of frame 1, with adjustable sizing block supporting, and plane on the frame 1 of leveling after keeping flat.
When clamping frame 1, at first allow middle part adjustable sizing block 2 stressed,
Carry plane in the dial gauge levelling by lathe, this frame can present the low bow type in high two ends, a centre.
Adjust the second time by end adjustable sizing block 4 stressed the carrying out that make two ends again, but it is high slightly to present two ends at the state lower bearing bracket 1 of microcosmic, middle low state, at last again by the 3 stressed adjustment again of adjustable sizing block in the middle of making, make frame 1 reach a relative horizontal state, finish the leveling of frame 1, compress with pressing plate 5 after the frame leveling, process window position 1-3 and base anchor position 1-2.Being installed and the leveling process of above-mentioned frame, same as the prior art.
Because there is trueness error in lathe self, can cause the perpendicularity precision of frame relative window center line in base anchor bottom surface in process lower, the perpendicularity that relative frame side is big is lower.Even can't reach relevant required precision.The present invention has stayed allowance for the perpendicularity precision that improves big the 1-1 in the relative frame of 1-2-1 both sides, base anchor bottom surface and the perpendicularity precision of the relative window center line of base anchor bottom surface 1-2-1 on the 1-2-1 of base anchor bottom surface.And adopt following method, the above-mentioned machine that is caused by the machine tool accuracy error is added error compensates:
Processing base anchor bottom surface 1-2-1 stays allowance 0.2mm～0.6mm, is datum level with a side 1-3-1 of window, after the centering frame, and centering datum level vertical of processing on the bottom surface of base anchor with window side 1-3-1; Lathe carries the position data that centering datum level two ends were measured and write down to dial gauge;
With 180 ° of frame 1 upsets, by the big face in inboard towards machine tool chief axis, upset is that the big face in the outside is towards machine tool chief axis, same side 1-3-1 with window is a benchmark again, adopt lathe to carry the position data that dial gauge remeasured and write down centering datum level two ends, and calculating two ends difference is n, n=a+a so, a is the perpendicularity difference of the relative window center line of base anchor that caused by the error of the relative x axle of lathe y axle, so after 180 ° of frame upsets, two ends actual measurement difference is reduced to half, just during n/2, the base anchor bottom surface of frame is fully vertical with the center line of window, therefore, the side excision n/2 that low spot side tool setting in the base anchor bottom surface, lathe are moved diagonally the base anchor bottom surface is high gets final product.
Compensation method at the error of perpendicularity of the relative table plane of z axle:
The last plane of levelling frame reaches in the 0.04mm its levelness, hangs steel wire on plane on the base anchor, steel wire tenesmus plummet, with 2 of photoelectricity miking steel wire upper and lower end parts A, B apart from the distance between the base anchor bottom surface.If the difference of above-mentioned distance greater than the squareness tolerance value of big of the relative frame side in base anchor bottom surface, makes lathe move diagonally at the z direction of principal axis, revise the perpendicularity of big of the relative frame side in base anchor bottom surface, make it reach designing requirement.So just can eliminate the error of perpendicularity of the relative table plane of lathe z axle well, guarantee the requirement on machining accuracy of frame.But note this moment, adjustable sizing block does not fill up below base anchor, otherwise, can influence the precision of hanging steel wire.
See also Fig. 2～Fig. 3, in above-mentioned procedure of processing, on big of the side of frame, process all annular datum levels 6 around window.And, process two place's centering faces 15,16 in the least significant end of frame.Centering face 15,16 needn't annular datum level 6 on same plane, if centering face and annular datum level be on same plane, an actual difference that only needs to write down between them gets final product.Carry the actual numerical value that 14 in the datum level 6 and centering face 15,16 under this state were measured and write down to dial gauge with lathe.Keeping flat on the side elevation of frame simultaneously, processing two places supporting datum level 7,8 and prepare edge-on frame usefulness, writing down the height difference between the two places supporting datum level 7,8,, putting square chest, supporting the frame after edge-on by actual difference so that next step.
See also Fig. 4, frame is edge-on, use the centering datum level 7,8 on the square chest support side facade, and frame is clamped in advance.
With 1,6,9 place's levellings in the datum level 6, when this difference of 3 is within ± 0.02, adopt lathe to carry the physical location numerical value that 14 in the datum level 6 and centering face 15,16 under this state were measured and write down to dial gauge, the difference of the respective value when above-mentioned numerical value and frame keep flat should be in the flatness accuracy rating of stipulating.After big levelling of side with frame, frame is fixedly clamped, starts lathe, finish the processing of big of two sides.In the process that leveling and machine add, big of the side of frame all is in free state, eliminates the influence of supported force deformation, has improved the machining accuracy of big of frame side.
After frame is edge-on, can directly mill processing, also can on boring machine, process at gantry.
Should be noted that during edge-on frame since frame too high can be suitable fix with pressing plate, prevent since frame unstable occur dangerous.
Every cold continuous rolling comprises transmission side and each a slice of fore side frame, in order better to reach matching requirements, after adopting said method to machine a slice, when another sheet frame of processing, to note, if during first fine finishining base anchor, if the inboard of frame faces up greatly, during the other a slice base anchor of fine finishining, the outside of frame is faced up greatly so.Such benefit is that if there is not fully well to eliminate the triaxial error of lathe self, milling train can tilt the adjustment that can help assembling like this to identical direction after assembling.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (4)
1. the processing method of a cold continuous rolling frame, the main body of described frame is the middle rectangle that is provided with window, the one end is provided with base anchor, it is characterized in that, may further comprise the steps:
One) the big face in the both sides of frame is lain on the workbench, with adjustable sizing block supporting, and the frame of leveling after keeping flat, clamp frame, finish the processing at window position and base anchor position; And on big of the side of frame, process all annular centering datum levels around window, and, also process the centering face in the least significant end of frame, on side elevation, process two places supporting datum level; With lathe carry that dial gauge is measured and the record datum level in 2～14 positional values and the position data of centering face;
Two) frame is edge-on around 90 ° of its center line upsets, support its supporting datum level with square chest, according to step 1) in position data, align the side of edge-on frame, frame is fixedly clamped, finish the processing of big of two sides of frame.
2. the processing method of cold continuous rolling frame according to claim 1 is characterized in that, described step 1) in the processing at base anchor position comprise the processing of base anchor bottom surface, the processing of described base anchor bottom surface may further comprise the steps:
1) preprocessing, stay allowance, and be datum level, after the centering frame with the side of window, centering datum level vertical of processing on the bottom surface of base anchor with the window center line, lathe carries the position data that base anchor centering datum level two ends were measured and write down to dial gauge;
2) frame is kept flat for 180 ° around its center line upset, as datum level, after the centering frame, lathe carries the position data that base anchor centering datum level two ends were measured and write down to dial gauge once more with the datum level in the step 1);
3) calculating: with step 2) the data correspondence that obtains deducts the data that step 1) obtains, and obtains difference n;
4) in the low spot side tool setting of base anchor bottom surface, lathe excises n/2 along the side that the vertical window center line is moved diagonally the base anchor bottom surface is high.
3. the processing method of cold continuous rolling frame according to claim 1 and 2, it is characterized in that, described step 1) processing at base anchor position comprises the processing of base anchor bottom surface in, the processing of described base anchor bottom surface adopts steel wire to hang the perpendicularity of plummet and the relative platen in photoelectricity miking base anchor bottom surface, and by machined it is revised, the perpendicularity of the relative platen in base anchor bottom surface is met design requirement.
4. the processing method of cold continuous rolling frame according to claim 3 is characterized in that, when frame keeps flat, does not establish supporter below the base anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098396 CN102179661B (en) | 2011-04-19 | 2011-04-19 | Method for machining frame of cold continuous rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098396 CN102179661B (en) | 2011-04-19 | 2011-04-19 | Method for machining frame of cold continuous rolling mill |
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| CN102179661A true CN102179661A (en) | 2011-09-14 |
| CN102179661B CN102179661B (en) | 2012-12-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955101A (en) * | 2017-12-26 | 2019-07-02 | 河南森源重工有限公司 | A kind of pump truck capstan head and its processing method |
| CN110509003A (en) * | 2019-08-19 | 2019-11-29 | 中钢集团西安重机有限公司 | A kind of processing technology of cold-rolling mill frame |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS57120768A (en) * | 1981-06-30 | 1982-07-27 | Tomoe Gijutsu Kenkyusho:Kk | Manufacture of valve plate for center type clap valve |
| JPH04101729A (en) * | 1990-08-10 | 1992-04-03 | Mamoru Mizutani | D-surface machining method for rotational shaft |
| CN101733287A (en) * | 2009-12-17 | 2010-06-16 | 北京京诚之星科技开发有限公司 | Device for adjusting and positioning horizontal offset for working rollers of rolling mill |
| CN201565467U (en) * | 2009-12-17 | 2010-09-01 | 北京京诚之星科技开发有限公司 | Rolling mill working roll horizontal offset regulating and positioning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4101729B2 (en) * | 2003-10-22 | 2008-06-18 | 劉 楊 | Livestock feed additive |
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2011
- 2011-04-19 CN CN 201110098396 patent/CN102179661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57120768A (en) * | 1981-06-30 | 1982-07-27 | Tomoe Gijutsu Kenkyusho:Kk | Manufacture of valve plate for center type clap valve |
| JPH04101729A (en) * | 1990-08-10 | 1992-04-03 | Mamoru Mizutani | D-surface machining method for rotational shaft |
| CN101733287A (en) * | 2009-12-17 | 2010-06-16 | 北京京诚之星科技开发有限公司 | Device for adjusting and positioning horizontal offset for working rollers of rolling mill |
| CN201565467U (en) * | 2009-12-17 | 2010-09-01 | 北京京诚之星科技开发有限公司 | Rolling mill working roll horizontal offset regulating and positioning device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955101A (en) * | 2017-12-26 | 2019-07-02 | 河南森源重工有限公司 | A kind of pump truck capstan head and its processing method |
| CN109955101B (en) * | 2017-12-26 | 2021-08-17 | 河南森源重工有限公司 | Pump truck turret and machining method thereof |
| CN110509003A (en) * | 2019-08-19 | 2019-11-29 | 中钢集团西安重机有限公司 | A kind of processing technology of cold-rolling mill frame |
| CN110509003B (en) * | 2019-08-19 | 2021-06-11 | 中钢集团西安重机有限公司 | Processing technology of cold rolling mill frame |
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| CN102179661B (en) | 2012-12-12 |
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