CN103331579A - Method for manufacturing and debugging inner frame assembly with shafts at two ends - Google Patents
Method for manufacturing and debugging inner frame assembly with shafts at two ends Download PDFInfo
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- CN103331579A CN103331579A CN 201310260980 CN201310260980A CN103331579A CN 103331579 A CN103331579 A CN 103331579A CN 201310260980 CN201310260980 CN 201310260980 CN 201310260980 A CN201310260980 A CN 201310260980A CN 103331579 A CN103331579 A CN 103331579A
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Abstract
The invention provides a method for manufacturing and debugging an inner frame assembly with shafts at two ends. The method comprises the following steps of preparing a set of mounting and debugging detection work platform, wherein the deviation of V-shaped positions of the precisions of two 0-grade V-shaped blocks in the vertical direction and the horizontal direction is smaller than 0.008mm; machining the shafts, wherein the cylindrical dimension precisions of two end shafts reach six grades and the surface roughnesses of the two end shafts reach Ra0.8; enabling the coaxiality of two end holes of a framework to be smaller than 0.03mm and the verticality of the holes and the end face to be smaller than 0.015mm when the framework is machined; preliminarily assembling the two shafts and the framework into an assembly by using mounting screws; placing the two end shafts of the assembled inner frame assembly on the two V-shaped blocks of the mounting and debugging detection work platform and adjusting the two end shafts; adjusting the inner frame assembly in one direction to enable the parallelism to be smaller than 0.008mm; rotating the inner frame assembly by 90 degrees along the axis; adjusting the inner frame assembly in the other direction to enable the parallelism to be smaller than 0.008mm; and completely locking connecting screws of the two end shafts and the framework, taking the inner frame assembly from the V-shaped blocks, drilling at connected parts of the shafts and the framework and mounting pins at the connected parts.
Description
Technical field
The invention belongs to the manufacture method of sub-assembly, be specifically related to the manufacturing adjustment method that there is the inside casing assembly of axle at a kind of two ends.
Background technology
Inside casing is the core component in some product leveling system, and it is mainly combined by framework and 2 axles (i.e. axle 1, axle 2).The termination of axle is the ring flange form, and the framework two ends all are processed with the installing hole of mounting flange, and axle is installed on the framework by the ring flange of termination, is connected two end axles and framework as a whole by screw.It is the workbench of leveling system, and according to instructions for use, the required precision of inside casing assembly is higher, and (axle 1, axle 2 axiality be less than 0.015mm, and the dimensional accuracy of two end axles cylindrical is that 6 grades, surface roughness are Ra0.8 for two end axles.
Existing a kind of manufacture method is: 1) axle is carried out roughing; 2) framework is carried out fine finishining; 3) rough machined axle is become an integral body with accurately machined frame assembled; 4) sub-assembly after will assembling adopts the processing of jig bore equipment, with universal boring head one end axle cylindrical is carried out fine finishining; After processing an end axle, by with behind the equipment disk Rotate 180 °, with universal boring head other end axle cylindrical is carried out fine finishining.
There is following problems in this manufacture method:
1) jig bore equipment is fit to the processing of high accurate hole very much, and the outer bowlder of processing axle must rely on universal boring head, adopts the mode of boring to process.Though this method can guarantee the axiality of two end axles, be difficult to guarantee the axle boring after, the excircle dimension precision reaches 6 grades, surface roughness and reaches Ra0.8.The part qualification rate is very low.
2) because axle is axially needing all processing, adopt the mode of universal boring head boring, working (machining) efficiency is very low.
Existing another kind of manufacture method is: 1) axle is carried out roughing; 2) framework is carried out fine finishining; 3) rough machined axle is become an integral body with accurately machined frame assembled; 4) with cylindrical grinder the two end axles cylindrical is carried out grinding, make an excircle dimension precision reach 6 grades, surface roughness and reach Ra0.8.
There is following problems in this manufacture method:
1) grinding process adopts two top clampings, because the excircle dimension of axial workpiece is less, the clamping power of two top clampings is less, and outling of truss is big and weigh, and part is excessive because of rotary inertia in rotary course, easy unstability and cause security incident.
2) adopt pin to position between framework and the axle and be connected, part is in rotary course always in the grinding, produces looseningly between alignment pin and the pin-and-hole because centrifugal force causes easily, makes axiality be difficult to guarantee.
Summary of the invention
The purpose of this invention is to provide a kind of two ends has the manufacturing adjustment method of the inside casing assembly of axle, and the sub-assembly that solves this special structure form adopts machining can not satisfy the problem of design accuracy index.
Technical scheme of the present invention: a kind of two ends of the present invention have the manufacturing adjustment method of the inside casing assembly of axle to comprise the steps:
1) prepares a cover and debug the testing platform, workbench comprises 0 grade of marble platform, 20 grade of V-block V-blocks, two 0 grade of V-blocks are positioned on 0 grade of marble platform by the position of being transferred two end axles of inside casing assembly, and the precision of two 0 grade of V-blocks should satisfy: in the V-type position deviation of vertical direction and horizontal direction less than 0.008mm;
2) axle is carried out roughing: two end axles are carried out roughing at lathe, and processing back cylindrical stays 0.4mm allowance;
3) axle is carried out fine finishining: on cylindrical grinder, the axle cylindrical is carried out grinding, make the excircle dimension precision of latter two end axle of grinding reach 6 grades, surface roughness and reach Ra0.8;
4) work in-process all processes the appearance and size of framework in the heart, and the datum hole to framework two ends installation shaft carries out fine finishining on jig bore equipment at last, guarantees the axiality of framework two stomidiums less than 0.03mm, and the perpendicularity of hole and end face is less than 0.015mm;
5) accurately machined two axles and framework tentatively are assembled into assembly with mounting screw, it is too tight that screw does not need to assemble, so that follow-up debuging;
6) the inside casing assembly two butt axles of assembling are placed on above-mentioned 2 V-blocks debuging the testing platform two butt axles are adjusted;
Method is:
(1) two butt axle is placed on 2 V-blocks debuging the testing platform, adjust the inside casing assembly, make a pair of vertical direction that is in four installing holes on the two butt shaft flange dishes, after amesdial touches first topmost A point, promoting amesdial makes indicator move along the topmost generatrix direction, if the depth of parallelism of first topmost bus and marble platform is less than 0.008mm, then the shaft core line depth of parallelism need not be adjusted less than 0.008mm; If greater than 0.008mm, then slightly knock shaft tail end with copper rod, first shaft core line adjustment is parallel with the marble platform; Second of the adjustment that use the same method is parallel with the marble platform; Tighten two screws of vertical direction;
(2) the inside casing assembly is rotated 90 ° along the axle center, make in four installing holes on the two butt shaft flange dishes another to being in vertical direction, method with step (1) is parallel with the marble platform with the shaft core line adjustment of two butt axles, tightens two screws of present vertical direction;
(3) verification: the inside casing assembly is rotated 45 ° along the axle center, detect the peak of two butt axle external diameters with the method for step (1), detection difference according to two butt axles, slightly knock the axle that exceeds along vertical direction with copper rod, make this with respect to framework slight movement arranged, observe the amesdial measured value simultaneously, when measuring difference less than 0.008mm, the center of two axles mixes up;
7) attachment screw of two butt axles and framework is locked fully, the inside casing assembly is taken off from V-block, draw-bore on axle and framework connecting portion, and pin is installed.
Described debug on the testing platform two 0 grade of V-blocks when mounted, adopt a high accuracy mandrel that two 0 grade of V-block installation accuracies are adjusted, the circularity of described high accuracy mandrel is less than 0.005mm, linearity is less than 0.005mm, the diameter of high accuracy mandrel can be than the diameter of two butt axles big 5mm～10mm; The high accuracy mandrel is placed on two 0 grade of V-blocks, adjusts the position of 20 grade of V-blocks, make high accuracy mandrel two ends in the deviation of vertical direction and horizontal direction less than 0.008mm.
Advantage of the present invention: to an independent axial workpiece or independent FRAME COMPONENTS processing, ripe separately mechanical process technique is arranged.Interior frame assembly is owing to particularity and the high particularity of precision of its version, and the method for employing machine finishing is difficult to satisfy the requirement of machining accuracy, and existing direct assembly method can't satisfy the final precision of interior frame assembly.The present invention has adopted machine finishing and the accurate method that combines of debuging.By the independent axle of grinding on cylindrical grinder, axle, give full play to the advantage of process equipment on working ability, make the excircle dimension precision of axle reach 6 grades, surface roughness and reach Ra0.8; And by the method that precision is debug, the inside casing assembly is placed on above-mentioned 2 V-blocks having debug, with amesdial detection components two ends mandrel, according to beating the table detection case mandrel relative framework in assembly two ends is being reached left and right directions adjustment up and down.Debug by precision, guarantee the axiality of two end axles.By adopting machine finishing to debug the method that combines with accurate, the overall accuracy of frame assembly meets design requirement in making, and production efficiency of products is higher, and does not exist safety to draw trouble in the manufacture process.
Description of drawings
Fig. 1 has the inside casing component drawings of axle for two ends.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the part drawing of axle.
Fig. 4 is the side view of Fig. 3.
Fig. 5 debugs the layout vertical view for debuging the testing platform.
Fig. 6 debugs side view for debuging the testing platform.
The specific embodiment
The present invention is further described below in conjunction with embodiment.
Fig. 1, Fig. 2 have the inside casing modular construction schematic diagram of axle for two ends: it is mainly combined by framework 3 and 2 axles (namely first 1, second 2).
Fig. 3, Fig. 4 are the part drawing of axle: first is example with axle 1: the termination of axle 1 is ring flange 1a, there are 4 central angles such as installing hole 1b to distribute on the ring flange 1a, the framework two ends all are processed with the installing hole of mounting flange, first 1, second 2 ring flange 1a and 4 installing hole 1b by the termination are installed on the framework 3 by screw 4, are connected two end axles and framework as a whole by screw.
Fig. 5, Fig. 6 are for debuging testing platform structure schematic diagram: workbench comprises 0 grade of marble platform 5,20 grade of V-blocks 6, two 0 grade of V-blocks 6 are positioned on 0 grade of marble platform 5 by the position of being transferred two end axles of inside casing assembly, and the precision of two 0 grade of V-blocks 6 should satisfy: in the V-type position deviation of vertical direction and horizontal direction less than 0.008mm;
Described debug on the testing platform two 0 grade of V-blocks when mounted, adopt a high accuracy mandrel that two 0 grade of V-block installation accuracies are adjusted, the circularity of described high accuracy mandrel is less than 0.005mm, linearity is less than 0.005mm, the diameter of high accuracy mandrel can be than the diameter of two butt axles big 5mm～10mm; The high accuracy mandrel is placed on two 0 grade of V-blocks, adjusts the position of 20 grade of V-blocks, make high accuracy mandrel two ends in the deviation of vertical direction and horizontal direction less than 0.008mm.
Two ends of the present invention have the manufacturing adjustment method of the inside casing assembly of axle to comprise the steps:
1) prepares a cover and debug the testing platform, workbench comprises 0 grade of marble platform, 20 grade of V-block V-blocks, two 0 grade of V-blocks are positioned on 0 grade of marble platform by the position of being transferred two end axles of inside casing assembly, and the precision of two 0 grade of V-blocks should satisfy: in the axle center of vertical direction and horizontal direction deviation less than 0.008mm;
2) axle is carried out roughing: two end axles are carried out roughing at lathe, and processing back cylindrical stays 0.4mm allowance;
3) axle is carried out fine finishining: on cylindrical grinder, the axle cylindrical is carried out grinding, make the excircle dimension precision of latter two end axle of grinding reach 6 grades, surface roughness and reach Ra0.8;
4) work in-process all processes the appearance and size of framework in the heart, and the datum hole to framework two ends installation shaft carries out fine finishining on jig bore equipment at last, guarantees the axiality of framework two stomidiums less than 0.03mm, and the perpendicularity of hole and end face is less than 0.015mm;
5) accurately machined two axles and framework tentatively are assembled into assembly with mounting screw, it is too tight that screw does not need to assemble, so that follow-up debuging;
6) the inside casing assembly two butt axles of assembling are placed on above-mentioned 2 V-blocks debuging the testing platform two butt axles are adjusted;
Method is:
(1) two butt axle is placed on 2 V-blocks debuging the testing platform, adjust the inside casing assembly, make a pair of vertical direction that is in four installing holes on the two butt shaft flange dishes, amesdial touch first topmost a bit after, promoting amesdial makes indicator move along the topmost generatrix direction, if the depth of parallelism of first topmost bus and marble platform is less than 0.008mm, then the shaft core line depth of parallelism need not be adjusted less than 0.008mm; If greater than 0.008mm, then slightly knock shaft tail end with copper rod, first shaft core line adjustment is parallel with the marble platform; Second of the adjustment that use the same method is parallel with the marble platform; Tighten two screws of vertical direction;
(2) the inside casing assembly is rotated 90 ° along the axle center, make in four installing holes on the two butt shaft flange dishes another to being in vertical direction, method with step (1) is parallel with the marble platform with the shaft core line adjustment of two butt axles, tightens two screws of present vertical direction;
(3) verification: the inside casing assembly is rotated 45 ° along the axle center, detect the peak of two butt axle external diameters with the method for step (1), detection difference according to two butt axles, slightly knock the axle that exceeds along vertical direction with copper rod, make this with respect to framework slight movement arranged, observe the amesdial measured value simultaneously, when measuring difference less than 0.008mm, the center of two axles mixes up;
7) attachment screw of two butt axles and framework is locked fully, the inside casing assembly is taken off from V-block, draw-bore on axle and framework connecting portion, and pin is installed.
The test point that a bit refers to amesdial detection components one end axle is positioned at the peak of an external diameter.
Claims (2)
1. there is the manufacturing adjustment method of the inside casing assembly of axle at two ends, comprise the steps:
1) prepares a cover and debug the testing platform, workbench comprises 0 grade of marble platform, 20 grade of V-block V-blocks, two 0 grade of V-blocks are positioned on 0 grade of marble platform by the position of being transferred two end axles of inside casing assembly, and the precision of two 0 grade of V-blocks should satisfy: in the V-type position deviation of vertical direction and horizontal direction less than 0.008mm;
2) axle is carried out roughing: two end axles are carried out roughing at lathe, and processing back cylindrical stays 0.4mm allowance;
3) axle is carried out fine finishining: on cylindrical grinder, the axle cylindrical is carried out grinding, make the excircle dimension precision of latter two end axle of grinding reach 6 grades, surface roughness and reach Ra0.8;
4) work in-process all processes the appearance and size of framework in the heart, and the datum hole to framework two ends installation shaft carries out fine finishining on jig bore equipment at last, guarantees the axiality of framework two stomidiums less than 0.03mm, and the perpendicularity of hole and end face is less than 0.015mm;
5) accurately machined two axles and framework tentatively are assembled into assembly with mounting screw, it is too tight that screw does not need to assemble, so that follow-up debuging;
6) the inside casing assembly two butt axles of assembling are placed on above-mentioned 2 V-blocks debuging the testing platform two butt axles are adjusted;
Method is:
(1) two butt axle is placed on 2 V-blocks debuging the testing platform, adjust the inside casing assembly, make a pair of vertical direction that is in four installing holes on the two butt shaft flange dishes, after amesdial touches first topmost A point, promoting amesdial makes indicator move along the topmost generatrix direction, if the depth of parallelism of first topmost bus and marble platform is less than 0.008mm, then the shaft core line depth of parallelism need not be adjusted less than 0.008mm; If greater than 0.008mm, then slightly knock shaft tail end with copper rod, first shaft core line adjustment is parallel with the marble platform; Second of the adjustment that use the same method is parallel with the marble platform; Tighten two screws of vertical direction;
(2) the inside casing assembly is rotated 90 ° along the axle center, make in four installing holes on the two butt shaft flange dishes another to being in vertical direction, method with step (1) is parallel with the marble platform with the shaft core line adjustment of two butt axles, tightens two screws of present vertical direction;
(3) verification: the inside casing assembly is rotated 45 ° along the axle center, detect the peak of two butt axle external diameters with the method for step (1), detection difference according to two butt axles, slightly knock the axle that exceeds along vertical direction with copper rod, make this with respect to framework slight movement arranged, observe the amesdial measured value simultaneously, when measuring difference less than 0.008mm, the center of two axles mixes up;
7) attachment screw of two butt axles and framework is locked fully, the inside casing assembly is taken off from V-block, draw-bore on axle and framework connecting portion, and pin is installed.
2. there is the manufacturing adjustment method of the inside casing assembly of axle at two ends according to claim 1, it is characterized in that: described debug on the testing platform two 0 grade of V-blocks when mounted, adopt a high accuracy mandrel that two 0 grade of V-block installation accuracies are adjusted, the circularity of described high accuracy mandrel is less than 0.005mm, linearity is less than 0.005mm, the diameter of high accuracy mandrel can be than the diameter of two butt axles big 5mm～10mm; The high accuracy mandrel is placed on two 0 grade of V-blocks, adjusts the position of 20 grade of V-blocks, make high accuracy mandrel two ends in the deviation of vertical direction and horizontal direction less than 0.008mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201310260980 CN103331579A (en) | 2013-06-27 | 2013-06-27 | Method for manufacturing and debugging inner frame assembly with shafts at two ends |
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| CN 201310260980 CN103331579A (en) | 2013-06-27 | 2013-06-27 | Method for manufacturing and debugging inner frame assembly with shafts at two ends |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650089A (en) * | 2017-10-16 | 2018-02-02 | 北京航天控制仪器研究所 | A kind of combination assembly method of three-axle table frame members |
| CN109262008A (en) * | 2018-10-22 | 2019-01-25 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of concentricity Precision Machining ensuring method of long overhanging Combined machining class part |
| CN110033821A (en) * | 2019-04-15 | 2019-07-19 | 湖北三江航天万峰科技发展有限公司 | Levelling mechanism for vehicle-mounted self-level(l)ing device |
| CN110561309A (en) * | 2019-10-12 | 2019-12-13 | 燕山大学 | undercarriage testing machine mounting support assembling process and tooling |
| CN112846747A (en) * | 2021-01-08 | 2021-05-28 | 中国船舶重工集团公司第七0七研究所 | Fine adjustment method for coaxiality of frame bearing bush |
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2013
- 2013-06-27 CN CN 201310260980 patent/CN103331579A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650089A (en) * | 2017-10-16 | 2018-02-02 | 北京航天控制仪器研究所 | A kind of combination assembly method of three-axle table frame members |
| CN107650089B (en) * | 2017-10-16 | 2020-05-08 | 北京航天控制仪器研究所 | Combined assembly method of inner frame assembly of three-axis turntable |
| CN109262008A (en) * | 2018-10-22 | 2019-01-25 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of concentricity Precision Machining ensuring method of long overhanging Combined machining class part |
| CN110033821A (en) * | 2019-04-15 | 2019-07-19 | 湖北三江航天万峰科技发展有限公司 | Levelling mechanism for vehicle-mounted self-level(l)ing device |
| CN110033821B (en) * | 2019-04-15 | 2021-03-09 | 湖北三江航天万峰科技发展有限公司 | Leveling mechanism for vehicle-mounted automatic leveling device |
| CN110561309A (en) * | 2019-10-12 | 2019-12-13 | 燕山大学 | undercarriage testing machine mounting support assembling process and tooling |
| CN110561309B (en) * | 2019-10-12 | 2021-03-16 | 燕山大学 | Undercarriage testing machine mounting support assembling process and tooling |
| CN112846747A (en) * | 2021-01-08 | 2021-05-28 | 中国船舶重工集团公司第七0七研究所 | Fine adjustment method for coaxiality of frame bearing bush |
| CN112846747B (en) * | 2021-01-08 | 2022-04-12 | 中国船舶重工集团公司第七0七研究所 | Fine adjustment method for coaxiality of frame bearing bush |
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Application publication date: 20131002 |