CN103698172A - Processing apparatus of solid propellant tension specimen - Google Patents
Processing apparatus of solid propellant tension specimen Download PDFInfo
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- CN103698172A CN103698172A CN201310563475.7A CN201310563475A CN103698172A CN 103698172 A CN103698172 A CN 103698172A CN 201310563475 A CN201310563475 A CN 201310563475A CN 103698172 A CN103698172 A CN 103698172A
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Abstract
The present invention provides a processing apparatus of a solid propellant tension specimen. The processing apparatus comprises a rack, wherein the bottom of the rack is provided with a mold fixation unit, the rack above the mold fixation unit is provided with an air pressure unit, the lower end of the air pressure unit is provided with a mold cutting unit driven by the air pressure unit, and the position between the mold cutting unit and the mold fixation unit is provided for placing a solid propellant tension specimen block. According to the present invention, the solid propellant tension specimen processing operation is simple and convenient, the specimen size meets requirements, the specimen can not be polluted during the specimen preparation process, the specimen processing efficiency is substantially increased, the operation environment is significantly improved, and safe requirements of dangerous substance operation are met.
Description
Technical field
The invention belongs to solid propellant field, relate to solid propellant tension test, be specifically related to a kind of processing unit (plant) of solid propellant tensile sample.
Background technology
Solid propellant tensile property is one of key property of solid propellant rocket motor charge formula Design, property regulation, is also important indicator and the essential items for inspection of the development of weapon model, production and assessment in serviceable life.China's solid propellant tensile property is carried out according to GJB770B-2005 method 413.1, test philosophy is under the test temperature and draw speed of regulation, at sample y direction, apply static unilateral stretching load, record ultimate tensile strength, fracture strength and corresponding length growth rate that sample bears.Test sample is sheet dumb-bell shape, sample thickness be 5mm or 10mm(as shown in Figure 1), the preparation of sample is first solid propellant to be processed into the medicine piece that thickness is 5mm or 10mm at present, then utilizes according to the sample dumbbell shape size milling system of regulation in GJB770B-2005 method 413.1.This method can process satisfactory sample, but owing to being milling machine milling cutter direct effect solid propellant, in order to reach the object of processed safely, must on sample cut face and milling cutter, constantly water inject cooling liquid, dry by putting into again baking oven after the residual liquid coolant wiped clean of specimen surface after completion of processing, can carry out tensile property test.Therefore this method not only has pollution to sample, and process is loaded down with trivial details, and efficiency is low.
Solid propellant rocket motor charge is used for limiting SOLID PROPELLANT COMBUSTION area with clad, and heat insulation layer and lining are for the protection of engine operation safety, and therefore, tensile property is one of their essential items for inspection.Conventionally, solid propellant rocket clad, heat insulation layer and lining are made by rubber type of material, and processing at present tensile sample is that employing standard dumbbell shape cut-off knife is tailored by hand.
Summary of the invention
The deficiency existing for prior art, the object of the invention is to, and a kind of processing unit (plant) of solid propellant tensile sample is provided, and processes simply, safely the tensile sample that meets the requirement of dangerous material operation intrinsic safety.
In order to realize above-mentioned task, the present invention adopts following technical scheme to be achieved:
A kind of processing unit (plant) of solid propellant tensile sample, comprise frame, in frame bottom, cover half unit is installed, in the frame of top, cover half unit, air pressure unit is installed, the lower end of air pressure unit is provided with the form unit of cutting being driven by air pressure unit, cuts between form unit and cover half unit for placing solid propellant sample piece;
Described air pressure unit comprises three axle cylinder and the air compressor that are arranged on frame top, air compressor is connected with source of the gas three linked piece by gas piping, two branch roads of source of the gas three linked piece output, article one, on branch road, be connected with total gas source valve, on another branch road, be connected with control gas source valve, article two, branch road is connected with switch valve with two-position and five-pass respectively, switch valve with two-position and five-pass is connected with three axle cylinders, and when total gas source valve and control gas source valve are opened simultaneously, pressure gas could enter three axle cylinders by switch valve with two-position and five-pass;
The described form unit of cutting comprises the cutting knife locating support being connected with three axle cylinders, cutting knife locating support bottom is provided with cutting knife installing plate, on cutting knife installing plate, be symmetrically installed with sample cutting knife, on cutting knife installing plate between sample cutting knife, pressing plate pillar is installed, one end of pressing plate pillar is fixed on pressing plate, the other end clearance fit of pressing plate pillar is arranged on and on cutting knife installing plate, makes the other end of pressing plate pillar on cutting knife installing plate, to stretch, on the pressing plate pillar between cutting knife installing plate and pressing plate, cover has stage clip, one end of stage clip withstands on pressing plate, the other end of stage clip withstands on cutting knife installing plate, stage clip is when natural elongation state, the lower surface of pressing plate is concordant with the blade end face of sample cutting knife, for elastic force compacting solid propellant sample piece,
Described cover half unit comprises Template Location support, and the bottom of Template Location support is arranged in frame, and the top of Template Location support is provided with template; The shape of described template is identical with pressing plate, template be positioned at pressing plate under and the upper surface of template and the lower surface of pressing plate be mirror image and be symmetrical arranged.
The present invention also has following technical characterictic:
Described sample cutting knife is the sample cutting knife of two dumbbell shapes of given size in GJB770B-2005 method 413.1, the supporting template that has pressing plate and the dumbbell shape of corresponding dumbbell shape.
On described cutting knife installing plate, be processed with gathering sill, on sample cutting knife, be processed with the lower gathering sill matching with upper gathering sill, between upper gathering sill and lower gathering sill, be equipped with feather key.
Described air compressor adopts quiet oil-free air compressor.
The present invention has following useful technique effect:
Device of the present invention is used for processing solid propellant tensile sample, simple, convenient, specimen size meets 413.1 requirements of GJB770B-2005 method, at sample making course, do not pollute sample, sample working (machining) efficiency significantly improves simultaneously, operating environment is obviously improved, and meets the requirement of dangerous material operation essential safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of facing of the present invention.
Fig. 2 is left TV structure schematic diagram of the present invention.
Fig. 3 is the startup control principle schematic diagram of air pressure unit of the present invention.
Fig. 4 is the structural representation of facing of cutting knife locating support.
Fig. 5 is the plan structure schematic diagram of cutting knife locating support.
Fig. 6 is the structural representation of facing of Template Location support.
Fig. 7 is the left TV structure schematic diagram of Template Location support.
Fig. 8 is the structural representation of facing of cutting knife installing plate.
Fig. 9 is the plan structure schematic diagram of cutting knife installing plate.
Figure 10 is the structural representation of facing of sample cutting knife.
Figure 11 is the plan structure schematic diagram of sample cutting knife.
Figure 12 is the structural representation of facing of pressing plate.
Figure 13 is the plan structure schematic diagram of pressing plate.
Figure 14 is the structural representation of facing of template.
Figure 15 is the plan structure schematic diagram of template.
In figure, the implication of each label is: 1-frame, and 2-air pressure unit, 3-cuts form unit, 4-cover half unit, 21-tri-axle cylinders, 22-air compressor, 23-source of the gas three linked piece, the total gas source valve of 24-, 25-controls gas source valve, 26-switch valve with two-position and five-pass, 27-gas piping, 31-cutting knife locating support, 32-cutting knife installing plate, 33-sample cutting knife, 34-pressing plate pillar, 35-pressing plate, 36-stage clip, 37-feather key, the upper gathering sill of 38-, gathering sill under 39-, 41-Template Location support, 42-template.
Below in conjunction with drawings and Examples, particular content of the present invention is described in more detail.
Embodiment
Below provide specific embodiments of the invention, it should be noted that the present invention is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection scope of the present invention.
Defer to technique scheme, as shown in Fig. 1 to Figure 15, the present embodiment provides a kind of processing unit (plant) of solid propellant tensile sample, comprise frame 1, in frame 1 bottom, cover half unit 4 is installed, in the frame 1 of 4 tops, cover half unit, air pressure unit 2 is installed, the lower end of air pressure unit 2 be provided with by air pressure unit 2, driven cut form unit 3, cut between form unit 3 and cover half unit 4 for placing solid propellant sample piece;
Described air pressure unit 2 comprises three axle cylinders 21 and the air compressor 22 that is arranged on frame 1 top, air compressor 22 is connected with source of the gas three linked piece 23 by gas piping 27, two branch roads of source of the gas three linked piece 23 outputs, article one, on branch road, be connected with total gas source valve 24, on another branch road, be connected with and control gas source valve 25, article two, branch road is connected with switch valve with two-position and five-pass 26 respectively, switch valve with two-position and five-pass 26 is connected with three axle cylinders 21, when total gas source valve 24 and control gas source valve 25 are opened simultaneously, pressure gas could enter three axle cylinders 21 by switch valve with two-position and five-pass 26,
The described form unit 3 of cutting comprises the cutting knife locating support 31 being connected with three axle cylinders 21, cutting knife locating support 31 bottoms are provided with cutting knife installing plate 32, on cutting knife installing plate 32, be symmetrically installed with sample cutting knife 33, on cutting knife installing plate 32 between sample cutting knife 33, pressing plate pillar 34 is installed, one end of pressing plate pillar 34 is fixed on pressing plate 35, the other end clearance fit of pressing plate pillar 35 is arranged on and on cutting knife installing plate 32, makes the other end of pressing plate pillar 35 on cutting knife installing plate 32, to stretch, on the pressing plate pillar 34 between cutting knife installing plate 32 and pressing plate 35, cover has stage clip 36, one end of stage clip 36 withstands on pressing plate 35, the other end of stage clip 36 withstands on cutting knife installing plate 32, stage clip 36 is when natural elongation state, the lower surface of pressing plate 35 is concordant with the blade end face of sample cutting knife 33, for elastic force compacting solid propellant sample piece,
Described cover half unit 4 comprises Template Location support 41, and the bottom of Template Location support 41 is arranged in frame 1, and the top of Template Location support 41 is provided with template 42; The shape of described template 42 is identical with pressing plate 35, template 42 be positioned at pressing plate 35 under and the upper surface of template 42 and the lower surface of pressing plate 35 be mirror image and be symmetrical arranged.
It should be noted that the solid propellant sample piece in the present invention refers to the rectangular parallelepiped blocks of solid propellant beginning to take shape before sample preparation, thickness requires as 5mm or 10mm according to sample conventionally.Length is equal in length with cutting knife.
On described cutting knife installing plate 32, be processed with gathering sill 38, on sample cutting knife 33, be processed with the lower gathering sill 39 matching with upper gathering sill 38, between upper gathering sill 38 and lower gathering sill 39, be equipped with feather key 37.Feather key 37 plays guide and limit effect for the process adjusting sample cutting knife 33 width, makes two sample cutting knifes remain parallel.Sample cutting knife 33 width be adjusted to fine setting, within the scope of grade.
For solving the technical matters proposing in the middle of background technology, solid propellant tensile sample processing unit (plant) of the present invention is on the basis of having analyzed solid propellant physical property feature, to adopt pressurized air to promote sample cutting knife 33 cutting solid propellant samples, when in operating process, operator's both hands are pressed total gas source valve 24 simultaneously and control gas source valve 25, sample cutting knife 33 could move, and reaches the object of sample making course essential safety.In solid propellant tensile sample processing unit (plant) of the present invention, template 42 and pressing plate 35 can compress solid propellant sample piece in advance, sample cutting knife 33 cutting samples, then at sample cutting knife 33 back off procedure center platens 35, under the effect of stage clip 36, promote sample and depart from sample cutting knife 33, guarantee that sample stays in template 42.
Adopt the processing unit (plant) of solid propellant tensile sample of the present invention to come the concrete operation step of sample preparation as follows:
(A) before operation, prepare:
(Aa) measure solid propellant sample piece thickness, screen satisfactory sample piece;
(Ab) check whether template 42 and sample cutting knife 33 mate;
(Ac) measure solid propellant sample piece hardness, the sample piece that is greater than 50A for shore hardness need be placed in 60 ℃ of water bath with thermostatic control baking ovens be incubated 30min～60min can cutting, shore hardness is not more than the directly cutting of sample piece of 50A;
(Ad) first open total gas source valve 24, crawl is opened control gas source valve 25 bit by bit moves downward sample cutting knife 33, checks sample cutting knife 33 and template 42 presence of interference, closes total gas source valve 24 and control gas source valve 25 after checking out;
(Ae) setting air compressor 22 dwell pressures are 0.5MPa, and safety relief pressure is 0.7MPa, then opens air compressor 22, first dry running 3min～5min, after it quits work, the gauge hand of observing air compressor 22 is constant, checks when gas circuit is intact simultaneously and can work.
(B) operation:
(Ba) solid propellant sample piece is placed on to relevant position in template 42;
(Bb) press total gas source valve 24 simultaneously and control gas source valve 25, sample cutting knife 33 is descending, and pressing plate 35 compresses solid propellant sample piece, and sample cutting knife 33 continues descending, completes the sample cutting of given size in GJB770B-2005 method 413.1;
(Bc) take off the sample that cutting is good, repeating step (Ba) and step (Bb), complete the processing of all samples;
(C) after sample machines, clear up this device, close the power supply of air compressor 22.
Claims (4)
1. the processing unit (plant) of a solid propellant tensile sample, comprise frame (1), it is characterized in that, in frame (1) bottom, cover half unit (4) is installed, in the frame (1) of top, cover half unit (4), air pressure unit (2) is installed, the lower end of air pressure unit (2) be provided with by air pressure unit (2), driven cut form unit (3), cut between form unit (3) and cover half unit (4) for placing solid propellant sample piece;
Described air pressure unit (2) comprises three axle cylinders (21) and the air compressor (22) that is arranged on frame (1) top, air compressor (22) is connected with source of the gas three linked piece (23) by gas piping (27), two branch roads of source of the gas three linked piece (23) output, article one, on branch road, be connected with total gas source valve (24), on another branch road, be connected with and control gas source valve (25), article two, branch road is connected with switch valve with two-position and five-pass (26) respectively, switch valve with two-position and five-pass (26) is connected with three axle cylinders (21), when total gas source valve (24) and control gas source valve (25) are opened simultaneously, pressure gas could enter three axle cylinders (21) by switch valve with two-position and five-pass (26),
The described form unit (3) of cutting comprises the cutting knife locating support (31) being connected with three axle cylinders (21), cutting knife locating support (31) bottom is provided with cutting knife installing plate (32), on cutting knife installing plate (32), be symmetrically installed with sample cutting knife (33), on cutting knife installing plate (32) between sample cutting knife (33), pressing plate pillar (34) is installed, one end of pressing plate pillar (34) is fixed on pressing plate (35), the other end clearance fit of pressing plate pillar (35) is arranged on and on cutting knife installing plate (32), makes the other end of pressing plate pillar (35) above to stretch at cutting knife installing plate (32), the upper cover of pressing plate pillar (34) between cutting knife installing plate (32) and pressing plate (35) has stage clip (36), one end of stage clip (36) withstands on pressing plate (35), the other end of stage clip (36) withstands on cutting knife installing plate (32), stage clip (36) is when natural elongation state, the lower surface of pressing plate (35) is concordant with the blade end face of sample cutting knife (33), for elastic force compacting solid propellant sample piece,
Described cover half unit (4) comprises Template Location support (41), and it is upper that the bottom of Template Location support (41) is arranged on frame (1), and the top of Template Location support (41) is provided with template (42); The shape of described template (42) is identical with pressing plate (35), template (42) be positioned at pressing plate (35) under and the upper surface of template (42) and the lower surface of pressing plate (35) be mirror image and be symmetrical arranged.
2. the processing unit (plant) of solid propellant tensile sample as claimed in claim 1, it is characterized in that, described sample cutting knife (33) is the sample cutting knife (33) of two dumbbell shapes of given size in GJB770B-2005 method 413.1, the supporting template (42) that has pressing plate (35) and the dumbbell shape of corresponding dumbbell shape.
3. the processing unit (plant) of solid propellant tensile sample as claimed in claim 1, it is characterized in that, on described cutting knife installing plate (32), be processed with gathering sill (38), on sample cutting knife (33), be processed with the lower gathering sill (39) matching with upper gathering sill (38), between upper gathering sill (38) and lower gathering sill (39), be equipped with feather key (37).
4. the processing unit (plant) of solid propellant tensile sample as claimed in claim 1, is characterized in that, described air compressor (22) adopts quiet oil-free air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563475.7A CN103698172B (en) | 2013-11-12 | 2013-11-12 | A kind of processing unit (plant) of solid propellant tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563475.7A CN103698172B (en) | 2013-11-12 | 2013-11-12 | A kind of processing unit (plant) of solid propellant tensile sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103698172A true CN103698172A (en) | 2014-04-02 |
| CN103698172B CN103698172B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310563475.7A Expired - Fee Related CN103698172B (en) | 2013-11-12 | 2013-11-12 | A kind of processing unit (plant) of solid propellant tensile sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352769A (en) * | 2015-09-29 | 2016-02-24 | 武汉钢铁(集团)公司 | Excellent trimming quality tensile specimen preparation device and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030003178A1 (en) * | 1999-12-28 | 2003-01-02 | Masahiro Kami | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| CN102323143A (en) * | 2011-05-18 | 2012-01-18 | 西安近代化学研究所 | Fixture for tensile bonding strength test of solid propellant and coating |
| CN202162949U (en) * | 2011-07-04 | 2012-03-14 | 威海海创模具科技有限公司 | Sheet pneumatic type in-mold forming device |
| CN102607944A (en) * | 2012-04-17 | 2012-07-25 | 西安近代化学研究所 | Gripper for tension test |
| CN202539367U (en) * | 2012-03-12 | 2012-11-21 | 宁波敏实汽车零部件技术研发有限公司 | External water cutting mould for vehicle |
-
2013
- 2013-11-12 CN CN201310563475.7A patent/CN103698172B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030003178A1 (en) * | 1999-12-28 | 2003-01-02 | Masahiro Kami | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| CN102323143A (en) * | 2011-05-18 | 2012-01-18 | 西安近代化学研究所 | Fixture for tensile bonding strength test of solid propellant and coating |
| CN202162949U (en) * | 2011-07-04 | 2012-03-14 | 威海海创模具科技有限公司 | Sheet pneumatic type in-mold forming device |
| CN202539367U (en) * | 2012-03-12 | 2012-11-21 | 宁波敏实汽车零部件技术研发有限公司 | External water cutting mould for vehicle |
| CN102607944A (en) * | 2012-04-17 | 2012-07-25 | 西安近代化学研究所 | Gripper for tension test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352769A (en) * | 2015-09-29 | 2016-02-24 | 武汉钢铁(集团)公司 | Excellent trimming quality tensile specimen preparation device and use method |
| CN105352769B (en) * | 2015-09-29 | 2018-08-07 | 武汉钢铁有限公司 | A kind of tensile sample preparation facilities that trimming quality is excellent and application method |
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| CN103698172B (en) | 2015-12-09 |
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Granted publication date: 20151209 Termination date: 20191112 |