CN103033083B - Hole strip, tooling for detecting hole strip and method for processing and detecting hole strip - Google Patents

Hole strip, tooling for detecting hole strip and method for processing and detecting hole strip Download PDF

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Publication number
CN103033083B
CN103033083B CN201210466611.6A CN201210466611A CN103033083B CN 103033083 B CN103033083 B CN 103033083B CN 201210466611 A CN201210466611 A CN 201210466611A CN 103033083 B CN103033083 B CN 103033083B
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bar
frequency spectrum
ageing treatment
hole
harmonic vibration
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CN103033083A (en
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邓智勇
唐伟
李年丰
周京平
邓道勇
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DONGFANG (GUANGZHOU) HEAVY MACHINERY Co Ltd
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DONGFANG (GUANGZHOU) HEAVY MACHINERY Co Ltd
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Abstract

The invention provides a special hole strip, which realizes the support on a heat exchange pipe and simultaneously guarantees the heat exchange effect. Meanwhile, the invention provides a method for processing the hole strip, which effectively eliminates the influence of the processing stress on the part dimension and the position precision through the ingenious combination of the stress releasing technology and the machining process. The invention also provides a special tooling for detecting the hole strip and a method for detecting the hole strip by the tooling. The special detecting tooling is adopted to be combined with the unique detecting method, the problem of form and location tolerance mass detection of porous parts is perfectly solved, on the premise of meeting the detection reliability degree, the detection efficiency is effectively improved, and the detection cost is reduced. The hole strip, the special tooling and the method are used in the fields of mechanical processing and detection.

Description

A kind of hole bar and the detection frock of this hole bar and the method for processing and this hole bar of check
Technical field
The present invention is applied in machining and detection field, particularly relates to a kind of mechanical hole bar part and detects the frock of this hole bar and the method for processing and this hole bar of detection.
Background technology
In interchanger in pressurized-water reactor nuclear power plant, be provided with C type heat exchanger tube, in order to support this C type heat exchanger tube, specialized designs a kind of high accuracy stainless steel hole bar.
In the bar of hole, be provided with through hole, the position degree of through hole wherein, the flatness of thin strip corrosion resistant plate requires high, to the processing conventional method of this class part, be all to adopt Digit Control Machine Tool to carry out, if only adopting Digit Control Machine Tool processes, for the positional precision of the smaller part circular hole of single hole in the bar of hole and dimensional accuracy, can guarantee man-hour adding, but be stainless steel parts for this kind of thin and long hole, the machining stress producing in machining process, to make hole bar distortion, and cause the dimensional accuracy in flatness, the depth of parallelism and each hole of its upper and lower surface to be difficult to guarantee.
In the bar of hole, the position degree in each hole is that Yi Kongtiao center is benchmark, detection to location of workpiece precision, traditional detection method adopts modern checkout equipment exactly---three-dimensional detector, hole bar is placed on three-dimensional detector and is detected, detection technique is accurate, and the position degree of each hole relative datum can read out, still, this method is generally used for measuring room use and is not suitable for industrial mass detection.
Summary of the invention
For addressing the above problem, the invention provides a kind of hole bar and detect the frock of this hole bar and the method for processing and this hole bar of check.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hole bar, for cross section is the cube bar of rectangle, has the through hole of some separated from one another and equidistant distributions between bottom surface on cube bar.
Be further used as improvement of the present invention, each through hole is manhole, on cube bar, between bottom surface, also have a rectangular through-hole, each manhole is inscribed within the same side of rectangular through-hole, the width of rectangular through-hole is less than the diameter of manhole, and cube bar two ends are equipped with installation chamfering on two sidelines, side near manhole.
Be further used as improvement of the present invention, through hole is ellipse hole, the major axis of described each ellipse hole is perpendicular to cube bar side, on one side of described cube bar, offer some arch grooves, described arch groove equates with the distance of nearest two elliptical holes, described cube bar two ends cross-sectional constriction forms installs plush copper, on described installation plush copper four edges line, is equipped with installation chamfering.
The present invention also provides a kind of method of processing above-mentioned hole bar, comprises the following steps:
1). the blank of cube bar (1) is put into numerical control planer, and location clamps, and evenly removes allowance;
2). the cube bar (1) after the processing of numerical control planer is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the first time, and the two ends of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration are for the first time respectively a bit;
3). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the first time put into CNC milling machine, and location clamps, and carries out layering rough milling;
4). the cube bar (1) after CNC rough milling is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the second time, two-end-point and the mid point of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration for the second time;
5). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the second time put into CNC milling machine again, and location clamps, and carries out layering half finish-milling processing;
6). the cube bar (1) after CNC half finish-milling processing is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the third time, the two-end-point of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration for the third time and length direction three place's fourth class branches;
7). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the third time put into CNC milling machine again, and location clamps, and carries out the processing of layering finish-milling;
8). finish-milling is complete, machines.
Be further used as improvement of the present invention, step 3), step 5) and step 7) carry out the enough cutting fluids of middle filling and layering processing sum is even number, step 3) and step 7) add the feed method of odd-level employing climb cutting in man-hour, even level employing upmilling, and described step 5) adds the feed method of odd-level employing in man-hour upmilling, even level employing climb cutting.
The present invention also provides a kind of special tooling that detects above-mentioned hole bar, and detecting frock is that flatness detects frock or Parallel testing frock or part manhole position degree detection frock or part manhole dimensional accuracy detection frock.
Be further used as improvement of the present invention, each detects frock and includes a platform, flatness detects frock and also comprises the planeness check tool being arranged on platform, Parallel testing frock also comprises the detection table being arranged on platform, detection table comprises detection gauge stand and is arranged on the lever indicator on gauge stand, part manhole position degree detects frock and also comprises C clamp and the alignment pin being arranged on platform, part manhole dimensional accuracy detects frock and also comprises the special measurement post being arranged on platform, and special measurement post is provided with go side and not-go-end.
The present invention also provides a kind of method of using above-mentioned special tooling to detect hole bar, comprises the following steps:
1). detect the flatness of cube bar, cube bar is to nature on request and is placed on platform, detect the maximal clearance between cube bar and planeness check tool contact-making surface, record this value and obtain flatness;
2). detect the depth of parallelism of cube bar, cube bar is to nature to be on request placed on platform, by the gauge outfit of lever indicator, contact the detection faces that needs of cube bar, simultaneously with the detection reference face that detects gauge stand contact cube bar, and move to the other end from one end of cube bar, record lever indicator indicator and rotate the difference acquisition depth of parallelism;
3). detect the position degree of manhole on cube bar, cube bar is to nature to be on request placed on platform, with C clamp, cube bar is fixed together with alignment pin, measure the distance in sideline outside two C clamps, then calculate the actual range between every two manholes, show that the difference of being examined each manhole physical location of workpiece and theoretical position is position degree;
4). detect the dimensional accuracy of cube bar manhole, cube bar is to nature to be on request placed on platform, special measurement post is put into the manhole of cube bar, the dimensional tolerance of manhole is judged in the position that then adopts printing opacity detection method observation special measurement post go side to contact with the manhole on cube bar with not-go-end.
Be further used as improvement of the present invention, when printing opacity detection method has light to appear for, circular arc two ends light tight when fitting in the middle part of go side and manhole circular arc in step 4), be judged to be go side detection qualified; When light tight, the circular arc middle part of laminating has light to appear when go side and manhole circular arc two ends, be judged to be not-go-end and detect qualifiedly, when go side and not-go-end detect when all qualified, judge that the manhole of this hole bar meets drawing tolerance.
Beneficial effect of the present invention: a kind of hole bar of special use is provided, guarantees heat transfer effect when realizing the accurate support of exchange heat pipe; A kind of method of processing this hole bar is provided simultaneously, the method by stress-removal technology with and process be combined cleverly, effectively removed the impact of machining stress on accessory size and positional precision in process; The present invention also provides a kind of and has detected the special tooling of this hole bar and use this frock to detect the method for hole bar, adopt special-purpose detection frock in conjunction with unique detection method, well solved such porous part form and position tolerance mass test problems, meeting under the prerequisite that detects reliability, effectively raising detection efficiency and reduced testing cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the first example structure schematic diagram of cube bar of the present invention;
Fig. 2 is the second example structure schematic diagram of cube bar of the present invention;
Fig. 3 is the first embodiment A-A place sectional drawing of cube bar of the present invention;
Fig. 4 is the first Embodiment B-B place sectional drawing of cube bar of the present invention;
Fig. 5 is the second Embodiment C-C place sectional drawing of cube bar of the present invention;
Fig. 6 is the second embodiment D-D place sectional drawing of cube bar of the present invention;
Fig. 7 is that the flatness of cube bar of the present invention detects schematic diagram;
Fig. 8 is the Parallel testing schematic diagram of cube bar of the present invention;
Fig. 9 is that the position degree of manhole on cube bar of the present invention detects schematic diagram;
Figure 10 is that the dimensional accuracy of manhole on cube bar of the present invention detects schematic diagram.
The specific embodiment
With reference to Fig. 1 ~ Figure 10, the invention provides a kind of hole bar, for cross section is the cube bar 1 of rectangle, on cube bar 1, between bottom surface, have the through hole of some separated from one another and equidistant distributions.
This cube bar 1 is provided with the through hole of accurate processing, guarantees heat transfer effect when realizing the accurate support of exchange heat pipe.
As the preferred embodiment of the present invention, each through hole is manhole 13, on cube bar 1, between bottom surface, also have a rectangular through-hole 12, each manhole 13 is inscribed within the same side of rectangular through-hole 12, the width of rectangular through-hole 12 is less than the diameter of manhole 13, is equipped with chamfering 14 is installed on two sidelines, side of cube bar 1 two ends near manhole 13.
Side's body bar 1 is provided with installs chamfering 14 for mounting-positioning holes bar, guarantees installation direction.
As the preferred embodiment of the present invention, each through hole is ellipse hole 15, the major axis of ellipse hole 15 is perpendicular to cube bar 1 side, cube bar 1 offers some arch grooves 16 on side, arch groove 16 equates with the distance of nearest two elliptical holes 15, cube bar 1 two ends cross-sectional constriction forms installs plush copper 17, installs on plush copper 17 four edges lines and is equipped with chamfering 14 is installed.
Cube bar 1 is provided with specially installs plush copper 17, plush copper 17 is installed and is provided with installation chamfering 14 for mounting-positioning holes bar.
The present invention also provides a kind of method of processing above-mentioned hole bar, comprises the following steps:
1). the blank of cube bar (1) is put into numerical control planer, and location clamps, and evenly removes allowance;
2). the cube bar (1) after the processing of numerical control planer is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the first time, and the two ends of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration are for the first time respectively a bit;
3). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the first time put into CNC milling machine, and location clamps, and carries out layering rough milling;
4). the cube bar (1) after CNC rough milling is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the second time, two-end-point and the mid point of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration for the second time;
5). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the second time put into CNC milling machine again, and location clamps, and carries out layering half finish-milling processing;
6). the cube bar (1) after CNC half finish-milling processing is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the third time, the two-end-point of the exciting point selection cube bar (1) of the Ageing Treatment of frequency spectrum harmonic vibration for the third time and length direction three place's fourth class branches;
7). the cube bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the third time put into CNC milling machine again, and location clamps, and carries out the processing of layering finish-milling;
8). finish-milling is complete, machines.
Frequency spectrum harmonic vibration timeliness principle is by Fourier analysis, do not need scanning, in 100HZ, find low-order harmonic, apply suitable energy and vibrate at a plurality of harmonic frequencies place, cause the multi-direction dynamic stress of higher-order wave harmonic wave accumulation generation of vibration, residual stress stack with multiple dimensional distribution, causes plastic deformation, thereby reduces peak value residual stress, make residual stress distribution homogenizing simultaneously, the cutting linear velocity of step 3) is 100m/min, and the lower cutter degree of depth is 0.5mm/ layer, and feed is 1000mm/min; The cutting linear velocity of step 5) is 120m/min, and the lower cutter degree of depth is 0.5mm/ layer, and feed is 1500mm/min; The cutting speed of step 7) is 150m/min, and the lower cutter degree of depth is 0.2mm/ layer, and feed is 1500mm/min, needs to guarantee the sharpness of cutter in above-mentioned working angles.
As the preferred embodiment of the present invention, step 3), step 5) and step 7) carry out the enough cutting fluids of middle filling and layering processing sum is even number, step 3) and step 7) add the feed method of odd-level employing climb cutting in man-hour, even level employing upmilling, and step 5) adds the feed method of odd-level employing in man-hour upmilling, even level employing climb cutting.
In working angles, adopt the method for layering processing, contribute in process, to eliminate in time part machining stress, enough cutting fluids of annotating guarantee that heat in metal cutting leaves in time, guarantee workpiece quality.
The present invention also provides a kind of special tooling that detects above-mentioned hole bar, and detecting frock is that flatness detects frock or Parallel testing frock or part manhole position degree detection frock or part manhole dimensional accuracy detection frock,
As the preferred embodiment of the present invention, each detects frock and includes a platform 2, flatness detects frock and also comprises the planeness check tool 3 being arranged on platform 2, Parallel testing frock also comprises the detection table 4 being arranged on platform 2, detection table comprises detection gauge stand 41 and is arranged on the lever indicator 42 on gauge stand 41, part manhole position degree detects frock and also comprises C clamp 5 and the alignment pin 6 being arranged on platform 2, part manhole dimensional accuracy detects frock and also comprises the special measurement post 7 being arranged on platform 2, special measurement post 7 is provided with go side and not-go-end.
Design hole bar special detection frock, guarantees the easy to detect, fast, complete accurately of hole bar.
The present invention also provides a kind of method of using above-mentioned special tooling to detect hole bar, comprises the following steps:
1). detect the flatness of cube bar 1, cube bar 1 is to nature on request and is placed on platform 2, detect the maximal clearance between cube bar 1 and planeness check tool 3 contact-making surfaces, record this value and obtain flatness;
2). detect the depth of parallelism of cube bar 1, cube bar 1 is to nature to be on request placed on platform 2, by the gauge outfit of lever indicator 42, contact the detection faces of cube bar 1, simultaneously with the detection reference face that detects gauge stand 41 contact cube bars 1, and move to the other end from one end of cube bar 1, record lever indicator indicator and rotate the difference acquisition depth of parallelism;
3). detect the position degree of manhole 13 on cube bar 1, cube bar 1 is to nature to be on request placed on platform 2, with C clamp 5, cube bar 1 is fixed together with alignment pin 6, measure the distance in two C clamp 5 sidelines, outside, then calculate the actual range between every two manholes 13, show that the difference of being examined each manhole 13 physical locations of workpiece and theoretical position is position degree;
4). detect the dimensional accuracy of manhole 13 on cube bar 1, cube bar 1 is to nature to be on request placed on platform, special measurement post 7 is put into the manhole 13 of cube bar 1, the dimensional tolerance of manhole 13 is judged in the position that then adopts printing opacity detection method observation special measurement post 7 go sides to contact with the manhole 13 on cube bar 1 with not-go-end.
This detection method is simple, convenient, reliable, has improved greatly the detection efficiency of such part, greatly reduces testing cost, uses the simplest method to solve the most complicated problem.
As the preferred embodiment of the present invention, when printing opacity detection method has light to appear for, circular arc two ends light tight when fitting in the middle part of go side and manhole 13 circular arcs in step 4), be judged to be go side detection qualified; When the 13 circular arc two ends laminatings of go side and manhole are light tight, circular arc middle part is while having light to appear, and is judged to be not-go-end and detects qualifiedly, when go side and not-go-end detect when all qualified, judges that the manhole 13 of this hole bar meets drawing tolerance.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and the modification that these are equal to or replacement are all included in the application's claim limited range.

Claims (2)

1. a method for machining hole bar, is characterized in that, comprises the following steps:
1). Tiao Wei cross section, hole is the cuboid bar (1) of rectangle, between the upper bottom surface of described cuboid bar (1), have the through hole of some separated from one another and equidistant distributions, the blank of described cuboid bar (1) is put into numerical control planer, and location clamps, and evenly removes allowance;
2). the cuboid bar (1) after the processing of numerical control planer is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the first time, and the two ends of the exciting point selection cuboid bar (1) of the described harmonic vibration of frequency spectrum for the first time Ageing Treatment are respectively a bit;
3). the cuboid bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the first time put into CNC milling machine, and location clamps, and carries out layering rough milling;
4). the cuboid bar (1) after CNC rough milling is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the second time, two-end-point and the mid point of the exciting point selection cuboid bar (1) of the described harmonic vibration of frequency spectrum for the second time Ageing Treatment;
5). the cuboid bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the second time put into CNC milling machine again, and location clamps, and carries out layering half finish-milling processing;
6). the cuboid bar (1) after CNC half finish-milling processing is carried out to the Ageing Treatment of frequency spectrum harmonic vibration for the third time, the two-end-point of the exciting point selection cuboid bar (1) of the described harmonic vibration of frequency spectrum for the third time Ageing Treatment and length direction three place's fourth class branches;
7). the cuboid bar (1) after the Ageing Treatment of frequency spectrum harmonic vibration is for the third time put into CNC milling machine again, and location clamps, and carries out the processing of layering finish-milling;
8). finish-milling is complete, machines.
2. the method for machining hole bar according to claim 1, it is characterized in that: described step 3), step 5) and step 7) carry out the enough cutting fluids of middle filling and layering processing sum is even number, described step 3) and step 7) add the feed method of odd-level employing climb cutting in man-hour, even level employing upmilling, and described step 5) adds the feed method of odd-level employing in man-hour upmilling, even level employing climb cutting.
CN201210466611.6A 2012-11-16 2012-11-16 Hole strip, tooling for detecting hole strip and method for processing and detecting hole strip Active CN103033083B (en)

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CN103759614A (en) * 2013-12-26 2014-04-30 南车资阳机车有限公司 Three-dimensional inspection sample plate for taper milling cutter
US10018458B2 (en) * 2016-09-12 2018-07-10 The Boeing Company Validating parts using a number of contiguous coupons produced from part excess
CN111468604A (en) * 2020-04-22 2020-07-31 南昌航空大学 Method for forming curved plate by multistage vibration aging of tailor-welded blank
CN114406621A (en) * 2022-02-21 2022-04-29 成都航天精诚科技有限公司 Manufacturing and detecting method of combined large-size high-precision strip-shaped workpiece

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