CN101482459B - Composite propellant small cylinder finishing tool apparatus - Google Patents
Composite propellant small cylinder finishing tool apparatus Download PDFInfo
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- CN101482459B CN101482459B CN2008100172727A CN200810017272A CN101482459B CN 101482459 B CN101482459 B CN 101482459B CN 2008100172727 A CN2008100172727 A CN 2008100172727A CN 200810017272 A CN200810017272 A CN 200810017272A CN 101482459 B CN101482459 B CN 101482459B
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- sample blank
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- rotating knife
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Abstract
The invention discloses a solid compound propellant small cylinder fine finishing cutter device, which comprises a handle, a round spinning cutter, a guide, a cushion block, a base and a sample blank box; the round spinning cutter is connected to the guide; the guide is accordingly fixed on the base; the sample blank box placed in the base can be pushed in or drown out perpendicularly to the paper surface; when the cushion block and a sample is placed in the sample blank box with a groove, the center of the sample blank is approximately superposed with the axis of the round spinning cutter; and the spinning cutter can be rotated down to perform a high accurate axial motion. The compound propellant small cylinder fine finishing cutter device with such structure can machines out samples with diameter relative error no more than 1%, and form and position tolerance below grade nine, and greatly increases the sample size precision.
Description
Technical field
The present invention relates to a kind of highly elastic material precise machining device that is used for, specifically, relate to a kind of composite propellant small cylinder finishing tool apparatus.
Background technology
At present, in solid composite propellant research institute and manufacturer, be processed into composite propellant small cylinder, use maximum to be, use interior round stamping knife tool stamping-out more, or on pressing machine, press and be cut into cylindrical grain, the low and form and position tolerance of precision has guaranteed not.Because then can be cut into shape because of elastic deformation like Fig. 2 with direct crush-cutting.This be when cutting spatula cutting sample at first knife give pressure of sample, make sample compression deformation become " drum " shape as Fig. 1, cut spatula and carry out along the dotted line direction.The sample that cuts, resiling after the taking-up becomes the shape of Fig. 2.Thing followed problem because the reason of shape, the variation that has brought specimen size precision form and position tolerance, the insecure problem of the data of surveying.
Summary of the invention
Fundamental purpose of the present invention provides a kind of to the accurate process tool device of solid composite propellant small cylinder.The sample that uses the present invention to process in dimensional accuracy and form and position tolerance, can meet the demands fully.
The present invention is directed to constant volume combustion device method and survey solid composite propellant combustion speed, the dimensional accuracy form and position tolerance of sample is had strict requirement, as to diameter sample in 15～23mm scope; Its absolute error should be below 0.15～0.23mm; Relative error≤1%, respectively for a short time 0.013mm and the 0.05mm of equaling of the cylindricity and the depth of parallelism, such accuracy requirement; To having the solid composite propellant of viscous-elastic behaviour, can't process with method for turning; If use casing process, then can hole appear because of diameter on the one hand; On the other hand, because of being stained with release agent, the surface can influence ignition process; If using crush-cutting method, its dimensional accuracy and form and position tolerance more cannot say for sure to demonstrate,prove.And the specimen finish that uses the present invention to process, relative error meeting≤1%, form and position tolerance can meet the demands less than nine grades fully.
In the real life, cut one section round steel or timber, labour-saving way is a saw.When your meat cutting sheet, cut very effort if cutter directly subdued, but cutter is stressed, become when not only pushing away forward but also slightly firmly pressing down, then can easily meat be cut.This laborsaving cutting method is exactly the special case of sawing.Method for sawing pieces, directly be used for cutting solid composite propellant sample, because of the application of force is little, sample deformation is just little, thereby can cutting go out the high test specimen of dimensional accuracy.The present invention produces the sawing effect with the circular cutter of rotation, and constantly feed again finally cuts out cylindrical sample simultaneously.
According to above-mentioned principle, be developed into by circular rotating knife, guide, base, cushion block and sample blank box etc. and constitute solid composite propellant cylinder finishing tool apparatus.
Description of drawings
Below in conjunction with embodiment and accompanying drawing composite propellant cylinder finishing tool apparatus of the present invention is described in further detail.
Fig. 1 is the synoptic diagram of prior art cutting sample.
Fig. 2 is the sample synoptic diagram after the cutting.
Fig. 3 is the cut-open view of composite propellant small cylinder finishing tool apparatus of the present invention.
Fig. 4 is the vertical view of sample blank box of the present invention.
1---handle; 2---circular rotating knife; 3---guide; 4---sample blank box; 5---the sample blank; 6---cushion block; 7---base.
Specifically execute real mode
Apparatus of the present invention are made up of four aspect parts
(1) the circular rotating knife 2 of band external thread and guide cylinder is as shown in Figure 3.With the circular rotating knife of handle 1 rotation, then sample blank 5 just receives the sawing processing of the downward circumferencial direction of circular knife, and when circular knife reached cushion block 6 upper surfaces, the sample processing tasks had just been accomplished.Screw thread on the circular rotating knife plays downward turn effect.The effect of cylindrical section is to guarantee that circular knife does high-precision axially-movable.
(2) guide 3 of band internal thread (difference of this reach and circular knife external thread length equals the height of test specimen greatly) and inner cylinder face is as shown in Figure 3.The effect of guide 3 is to guarantee circular cutter rotation and high precision axially-movable slowly.
(3) base 7, and is as shown in Figure 3.Its effect has 2 points: the one, and the space that can place sample blank box 4.The 2nd, guarantee the axis of sample blank box bottom surface, and guarantee that sample blank center overlaps with the axis of circular knife basically perpendicular to circular knife.
(4) sample blank box 4 is as shown in Figure 3.Its effect has 5 points: the one, guarantee that sample blank bottom surface is parallel to the bottom surface of sample blank box.The 2nd, when cushion block 6 and sample blank were put into this part, the sample blank was put into the degree of depth and is 2-3mm to the maximum, enough big chip removal space was arranged around making the sample blank, like the A among Fig. 3 and Fig. 4.The 3rd, this box can be as drawer, and vertical paper pushes or pulls out, and is convenient to putting into and taking out test specimen that processes and medicine bits of sample blank.The 4th, have following vent port in case accident, the sample blank rotated when this shape can prevent to cut medicine.Sample blank 5 all makes consistent polygon with groove with cushion block 6 profiles.Fig. 4 is the vertical view of sample blank box 4, and A is the chip removal space, the 5th, and sample blank, C are the grooves that holds sample blank 5 and cushion block 6, this groove is a quadrilateral.
Can know by the cut-open view of composite propellant small cylinder finishing tool apparatus of the present invention shown in Figure 3 and the vertical view of sample blank box; Circular rotating knife 2 comprises the cylindrical section of band male thread portion and guiding, and it links with the guide 3 of band internal thread and inner cylinder face.The guide cylinder end of circular rotating knife 2 has handle 1; Another annular end surface of circular rotating knife 2 tilts; Process acutangulate leading edge; The trailing edge of cutter end has one to exceed end chamfer and to be with externally threaded guide cylinder be one, the downward turn of screw thread, and its cylindrical section guarantees that circular rotating knife does high-precision axially-movable.Described guide 3 correspondingly is fixed on the base 7, places sample blank box 4 in the base, and sample blank box bottom surface is perpendicular to the axis of circular rotating knife 2, and assurance sample blank 5 centers overlap with the axis of circular rotating knife 2 basically.The bottom surface of the sample blank box of placing in the base 74 is parallel with the bottom surface of sample blank 5, and when cushion block 6 was put into this part with sample blank 5, sample blank 5 was put into the degree of depth and is 2～3mm to the maximum.The sample blank box of placing in the base 4 can push perpendicular to paper pulls out.Vent port is arranged at sample blank box 4 bottoms.The medicine bits of being convenient to process discharge, to guarantee the safety of processing.
Groove holding sample blank 5 and cushion block 6 is a polygon.But the groove in apparatus of the present invention is a quadrilateral.
Use cutter arrangement of the present invention, improved the precision of specimen size greatly, listed the solid composite propellant powder column that this device cutting goes out in the table.
| Design size (diameter) (mm) | The measuring point | Physical size (mm) | Relative error (%) | Cylindricity (mm) | Verticality (mm) |
| 22.40 | Top (near surface) | 22.34 | 0.03 | ＜0.013 | ≤0.05 |
| The middle part | 22.32 | 0.03 | |||
| Bottom (near surface) | 22.34 | 0.03 | |||
| On average | 22.33 | 0.03 |
Can find out significantly that on cutter was processed accurately the basis, the specimen size precision of processing gained was very high.
Claims (4)
1. composite propellant small cylinder finishing tool apparatus; Comprise circular rotating knife, guide, base and sample blank box; It is characterized in that: the annular end surface of said circular rotating knife (2) tilts, and forms the leading edge of acute angle, and the trailing edge of cutter end has one, and to exceed end chamfer be one with being with externally threaded guide cylinder section; The downward turn of screw thread, cylindrical section guarantee that circular rotating knife does high-precision axially-movable; Realize that circular rotating knife cuts out complexing agent small cylinder dimensional accuracy in sawing processing and form and position tolerance meets the demands; The circular rotating knife (2) of band external thread and guide cylinder and the guide (3) of being with internal thread and inner cylinder face are through being threaded, and the guide cylinder end of circular rotating knife (2) has handle (1); Said guide (3) correspondingly is fixed on the base (7), puts sample blank box (4) in the base (7), and sample blank box bottom surface is perpendicular to the axis of circular rotating knife (2), and assurance sample blank (5) center overlaps with the axis of circular rotating knife (2) basically.
2. composite propellant small cylinder finishing tool apparatus according to claim 1; It is characterized in that: the bottom surface of the sample blank box of putting in the described base (7) (4) is parallel with sample blank (5) bottom surface; When cushion block (6) and sample blank (5) were put into this part, sample blank (5) was put into the degree of depth and is 2-3mm to the maximum.
3. composite propellant small cylinder finishing tool apparatus according to claim 1 is characterized in that: described sample blank box (4) can push or pull out perpendicular to paper, and vent port is arranged at sample blank box (4) bottom.
4. composite propellant small cylinder finishing tool apparatus according to claim 2 is characterized in that: the groove that holds sample blank (5) and cushion block (6) is a polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100172727A CN101482459B (en) | 2008-01-11 | 2008-01-11 | Composite propellant small cylinder finishing tool apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100172727A CN101482459B (en) | 2008-01-11 | 2008-01-11 | Composite propellant small cylinder finishing tool apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101482459A CN101482459A (en) | 2009-07-15 |
| CN101482459B true CN101482459B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100172727A Expired - Fee Related CN101482459B (en) | 2008-01-11 | 2008-01-11 | Composite propellant small cylinder finishing tool apparatus |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490206A (en) * | 2011-12-13 | 2012-06-13 | 常州鑫鹏工具制造有限公司 | Plastic part punching machine |
| CN104180964A (en) * | 2013-05-24 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Transparent piece fragment state testing device and lamp transparent piece fragment state testing method |
| CN104260123B (en) * | 2014-08-04 | 2015-12-09 | 西安近代化学研究所 | Hard mechanical properties of propellant sample pre-treatment flaking device |
| CN104148710A (en) * | 2014-08-07 | 2014-11-19 | 西安近代化学研究所 | Cutter for contour machining of small cylinders |
| CN104142263B (en) * | 2014-08-07 | 2017-01-18 | 西安近代化学研究所 | Soft propellant mechanical property test sample pretreatment slice cutting device |
| CN104569374B (en) * | 2015-01-04 | 2017-01-11 | 深圳市艾瑞生物科技有限公司 | Homogeneous fluorescence immunoassay-based reagent group capable of rapidly and quantitatively detecting C-reactive proteins and preparation method of homogeneous fluorescence immunoassay-based reagent group |
| CN105823660B (en) * | 2016-03-15 | 2018-08-28 | 合肥工业大学 | A kind of production method of soft rock undisturbed sample |
| CN105922310B (en) * | 2016-06-12 | 2017-10-10 | 国家电网公司 | A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer |
| CN112268776B (en) * | 2020-11-17 | 2022-08-19 | 南京大学 | Preparation method of fractured soil compressive strength test sample |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298893Y (en) * | 1997-07-17 | 1998-12-02 | 机械工业部西安重型机械研究所 | Adjustable inner hole working tool |
-
2008
- 2008-01-11 CN CN2008100172727A patent/CN101482459B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298893Y (en) * | 1997-07-17 | 1998-12-02 | 机械工业部西安重型机械研究所 | Adjustable inner hole working tool |
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| CN101482459A (en) | 2009-07-15 |
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Owner name: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20141014 Owner name: NANTONG JINNIU MACHINERY MANUFACTURE CO., LTD. Free format text: FORMER OWNER: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20141014 |
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Effective date of registration: 20141014 Address after: 226600, Jiangsu province Nantong city Haian county old dam Town Industrial Park Patentee after: NANTONG JINNIU MACHINERY MANUFACTURE CO., LTD. Patentee after: Northwestern Polytechnical University Address before: 710072 Xi'an friendship West Road, Shaanxi, No. 127 Patentee before: Northwestern Polytechnical University |
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