CN107434754A - A kind of composite core formwork - Google Patents
A kind of composite core formwork Download PDFInfo
- Publication number
- CN107434754A CN107434754A CN201710719315.5A CN201710719315A CN107434754A CN 107434754 A CN107434754 A CN 107434754A CN 201710719315 A CN201710719315 A CN 201710719315A CN 107434754 A CN107434754 A CN 107434754A
- Authority
- CN
- China
- Prior art keywords
- umbrella
- block
- core
- umbrella disk
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a kind of composite core formwork, the section of the core is annular, and it is enclosed and formed by multiple tiltedly umbrella block and straight umbrella blocks；The tiltedly umbrella block and straight umbrella block form by the first umbrella disk axially spliced along core and the second umbrella disk, and core central shaft is vertical with circular ring section；It is all tiltedly to be fixed between umbrella block and the first umbrella disk and the second umbrella disk of straight umbrella block by umbrella disk fixed cover and clamping sleeve.The present invention instead of radial positioning using axially position, and inside and outside layering is improved to left and right docking, using the direct wire cutting of sheet metal into oblique umbrella block and straight umbrella block, eliminates the processes such as casting, reduces description of materials, reduce a large amount of fasteners.The invention reduces the cost of raw material, reduces difficulty of processing, shorten the manufacturing cycle, improve assembly precision and efficiency, avoids safe mass hidden danger caused by fastener loss.
Description
Technical field
The invention belongs to propellant charge manufacturing technology field, and in particular to a kind of composite core formwork.
Background technology
It is common Types of Medicine in Design of Solid Propellant Rocket Engine to bore groove Types of Medicine, and the core component for being molded such Types of Medicine is referred to as
For umbrella disk, general conventional umbrella disk structure is radially divided into inside and outside two layers, two layers of umbrella disk connect by cast iron ring and coordinate inclined-plane with
Step positions, and every layer of umbrella disk is divided into n groups, every group of umbrella block for including different profiles.If Fig. 1 is 1/4 of the sectional view of umbrella disk
Point, Fig. 2 is its Fig. 1 side view.Work in-process, first cast unequal number amount umbrella block（Including cast copper, cast aluminium and cast iron）, pass through
Umbrella disk is spliced into after the processing such as car, milling, pincers, while processes auxiliary mould and assembling auxiliary mould.Therefore, this kind of structure design is deposited
In difficult processing, the problem such as the cycle is long, cost is high, assembly difficulty is big, service efficiency is low.
The content of the invention
The present invention provides a kind of composite core formwork, to reach be easy to process, using and reduce the purpose of cost.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of composite core formwork, the section of the core
For annular, it is enclosed and formed by multiple tiltedly umbrella block and straight umbrella blocks；The tiltedly umbrella block and straight umbrella block axially splice by along core
The first umbrella disk and the second umbrella disk composition, core central shaft is vertical with circular ring section；The first of all tiltedly umbrella blocks and straight umbrella block
Fixed between umbrella disk and the second umbrella disk by umbrella disk fixed cover and clamping sleeve.
Further, described umbrella disk fixed cover is ring-type, inner hollow, the multiple screwed holes of its ring processing and pin-and-hole；
First umbrella disk is connected close to core central shaft side by bolt and pin with umbrella disk fixed cover.
Further, the clamping sleeve is ring-type, and inner hollow, ring machined step on the outside of it, and the second umbrella disk is close
Core central shaft side is also machined with the step to match with clamping sleeve step.
Further, the clamping sleeve is additionally provided with the step being engaged with umbrella disk fixed cover, the fascia edge card of clamping sleeve
The inner wall edge of tight umbrella disk fixed cover.
Further, first umbrella disk and the second umbrella disk set phase away from core central shaft side by both contact surfaces
The step clamping of cooperation.
Further, the tiltedly length of side of the umbrella block away from core central shaft side is more than close to the side of core central shaft side
It is long.
Further, the length of side of the straight umbrella block away from core central shaft side is less than close to the side of core central shaft side
It is long.
The invention further relates to the assembly method of the core, comprise the following steps：
1）First umbrella disk of oblique umbrella block and straight umbrella block is fixed into splicing on umbrella disk fixed cover；
2）Oblique umbrella block and the straight umbrella disk of umbrella block second are placed on the first umbrella disk and umbrella disk fixed cover successively, then packed into compression
Row is fixed and clamped；
3）Umbrella disk fixed cover and clamping sleeve are fixed by connector, you can complete assembling.Specifically can by be threaded hole and
Bolt is fastened.
The present invention instead of radial positioning using axially position, and inside and outside layering is improved to left and right docking, using sheet metal
Direct wire cutting eliminates the processes such as casting, reduces description of materials, reduce a large amount of fasteners into oblique umbrella block and straight umbrella block.
The invention reduces the cost of raw material, reduces difficulty of processing, shorten the manufacturing cycle, improve assembly precision and efficiency, keeps away
Safe mass hidden danger caused by fastener loss is exempted from.
Brief description of the drawings
Fig. 1 is the structure chart of 1/4 part in the section of traditional umbrella disk.
Fig. 2 is Fig. 1 side view.
Fig. 3 provides the schematic cross-section of core for the present invention.
Fig. 4 is Fig. 3 side view.
Embodiment
With reference to embodiments and accompanying drawing further illustrates the present invention, but the scope of protection of present invention is not limited to
In the scope of embodiment statement.
As Figure 1-4, a kind of composite core formwork, it is characterised in that：The section of the core is annular, and it is by multiple oblique umbrellas
Block 3 and straight umbrella block 4 are enclosed and formed；Tiltedly umbrella block and the straight umbrella block are by the first umbrella disk 1 and the second umbrella axially spliced along core
Disk forms, and core central shaft is vertical with circular ring section；All tiltedly umbrella blocks 3 and the first umbrella disk of straight umbrella block 4 and the second umbrella disk it
Between fixed by umbrella disk fixed cover 5 and clamping sleeve 6.Oblique umbrella block 3 and straight umbrella block 4 are by the umbrella disk of certain amount first and the second umbrella
Disk forms, and its determination of amount takes into account the demoulding and assembly feasibility；8 pieces of oblique umbrella blocks and 4 pieces of straight umbrella blocks are set in such as embodiment,
The oblique umbrella block of each two is symmetrical arranged as one group, is then separated by straight umbrella block with other groups.
In preferable scheme, described umbrella disk fixed cover is ring-type, inner hollow, the multiple screwed holes of its ring processing and pin
Hole；First umbrella disk is connected close to core central shaft side by bolt and pin with umbrella disk fixed cover.
Further, the clamping sleeve is ring-type, and inner hollow, ring machined step on the outside of it, and the second umbrella disk is close
Core central shaft side is also machined with the step to match with clamping sleeve step.
Further, the clamping sleeve is additionally provided with the step being engaged with umbrella disk fixed cover, the fascia edge of clamping sleeve
The inner wall edge of clamping umbrella disk fixed cover.
Preferably, the umbrella disk of the first umbrella disk 1 and second sets phase away from core central shaft side by both contact surfaces
The step clamping of cooperation.
Further, the length of side of the tiltedly umbrella block 3 away from core central shaft side is more than close to core central shaft side
The length of side.
Further, the straight length of side of the umbrella block 4 away from core central shaft side is less than close to core central shaft side
The length of side.Straight umbrella block is set to carry certain taper, taper is about 3 degree, is easy to be stripped.
Seal groove is set in the outer part between umbrella block and umbrella block, and inside can install sealing strip, can prevent from oozing medicine.Umbrella block is adopted
Formed with linear cutter.
Specific assembly method, comprises the following steps：
1）First umbrella disk of oblique umbrella block and straight umbrella block is fixed into splicing on umbrella disk fixed cover；
2）Oblique umbrella block and the straight umbrella disk of umbrella block second are placed on the first umbrella disk and umbrella disk fixed cover successively, then packed into compression
Row is fixed and clamped；
3）Umbrella disk fixed cover and clamping sleeve are fixed by connector, you can complete assembling.
The core of certain product is designed according to original structure, processed, and its processing charges often covered is 450,000 yuan, and the cycle is 43 days,
Using this structure, the processing charges often covered is 150,000 yuan, and the cycle is 21 days.The present invention has good economic benefit.
Claims (8)
- A kind of 1. composite core formwork, it is characterised in that：The section of the core is annular, and it is by multiple tiltedly umbrella blocks（3）With straight umbrella block （4）Enclose and form；Tiltedly umbrella block and the straight umbrella block are by the first umbrella disk axially spliced along core（1）Formed with the second umbrella disk, Core central shaft is vertical with circular ring section；All tiltedly umbrella blocks（3）With straight umbrella block（4）The first umbrella disk and the second umbrella disk between lead to Cross umbrella disk fixed cover（5）And clamping sleeve（6）It is fixed.
- 2. core according to claim 1, it is characterised in that：Described umbrella disk fixed cover is ring-type, inner hollow, its ring To the multiple screwed holes of processing and pin-and-hole；First umbrella disk is connected close to core central shaft side by bolt and pin with umbrella disk fixed cover Connect.
- 3. core according to claim 2, it is characterised in that：The clamping sleeve is ring-type, inner hollow, its outside ring Step is machined, the second umbrella disk is also machined with the step to match with clamping sleeve step close to core central shaft side.
- 4. core according to claim 3, it is characterised in that：The clamping sleeve is additionally provided with what is be engaged with umbrella disk fixed cover Step, the inner wall edge of the fascia edge clamping umbrella disk fixed cover of clamping sleeve.
- 5. core according to claim 2, it is characterised in that：First umbrella disk（1）With the second umbrella disk away from core Mandrel side sets the step clamping being engaged by both contact surfaces.
- 6. core according to claim 1, it is characterised in that：The tiltedly umbrella block（3）Side away from core central shaft side The long length of side being more than close to core central shaft side.
- 7. core according to claim 1, it is characterised in that：The straight umbrella block（4）Side away from core central shaft side The long length of side being less than close to core central shaft side.
- 8. the assembly method of core described in claim 1-7 any one, it is characterised in that comprise the following steps：1）First umbrella disk of oblique umbrella block and straight umbrella block is fixed into splicing on umbrella disk fixed cover；2）Oblique umbrella block and the straight umbrella disk of umbrella block second are placed on the first umbrella disk and umbrella disk fixed cover successively, then packed into compression Row is fixed and clamped；3）Umbrella disk fixed cover and clamping sleeve are fixed by connector, you can complete assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719315.5A CN107434754B (en) | 2017-08-21 | 2017-08-21 | A kind of composite core formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719315.5A CN107434754B (en) | 2017-08-21 | 2017-08-21 | A kind of composite core formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107434754A true CN107434754A (en) | 2017-12-05 |
| CN107434754B CN107434754B (en) | 2019-02-12 |
Family
ID=60460100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710719315.5A Active CN107434754B (en) | 2017-08-21 | 2017-08-21 | A kind of composite core formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107434754B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497099A (en) * | 2008-01-31 | 2009-08-05 | 西北工业大学 | Spin forming mandrel with transversal inner rib component |
| CN102091736A (en) * | 2010-11-04 | 2011-06-15 | 西北工业大学 | Core mold for spinning and forming large-size complex curved generatrix thin-wall member with transverse inner ribs |
| CN102240740A (en) * | 2011-06-09 | 2011-11-16 | 西北工业大学 | Spinning core mould with transverse inner ribs and forward demoulding method |
| CN202129355U (en) * | 2011-06-09 | 2012-02-01 | 西北工业大学 | Spinning core die for members with transverse inner ribs |
-
2017
- 2017-08-21 CN CN201710719315.5A patent/CN107434754B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497099A (en) * | 2008-01-31 | 2009-08-05 | 西北工业大学 | Spin forming mandrel with transversal inner rib component |
| CN102091736A (en) * | 2010-11-04 | 2011-06-15 | 西北工业大学 | Core mold for spinning and forming large-size complex curved generatrix thin-wall member with transverse inner ribs |
| CN102240740A (en) * | 2011-06-09 | 2011-11-16 | 西北工业大学 | Spinning core mould with transverse inner ribs and forward demoulding method |
| CN202129355U (en) * | 2011-06-09 | 2012-02-01 | 西北工业大学 | Spinning core die for members with transverse inner ribs |
Non-Patent Citations (1)
| Title |
|---|
| 李换朝等: "一种无紧固件连接的塑料模具设计研究", 《机械工程师》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107434754B (en) | 2019-02-12 |
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