CN105772568A - Outer strip forming method of TVS-2M positioning grillwork - Google Patents
Outer strip forming method of TVS-2M positioning grillwork Download PDFInfo
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- CN105772568A CN105772568A CN201410830025.4A CN201410830025A CN105772568A CN 105772568 A CN105772568 A CN 105772568A CN 201410830025 A CN201410830025 A CN 201410830025A CN 105772568 A CN105772568 A CN 105772568A
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- chamfering
- outer band
- groove
- bending
- forming method
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- Bending Of Plates, Rods, And Pipes (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention belongs to the technical field of fuel modules, and in particular, relates to an outer strip forming method of a TVS-2M positioning grillwork. The outer strip forming method comprises the steps of primary machining, chamfering, shape blanking, guide wing bending, lap joint forming and groove molding through bending. The outer strip forming method solves the problem that the chamfering size and shape of an outer strip manufactured by a traditional manual filing chamfering method are difficult to reach the standard and the unification. The outer strip, manufactured by the chamfering method, is precise and unified in chamfering size and shape and excellent in chamfering surface roughness; and the production efficiency can be greatly improved.
Description
Technical field
The invention belongs to fuel assembly technical field, be specifically related to the outer band forming method of a kind of TVS-2M grid spacer.
Background technology
The important component part of fuel assembly during band outside grid spacer, the manufacture of outer band at present all adopts artificial file to accomplish type, namely first the profile after outer band launches is gone out with mould, then utilize mould by the guide vane bending of upper and lower both sides, followed by mould by outer band and the dislocation type molding of outer band lap-joint, utilizing mould 120 degree of bending product two place at twice afterwards, the chamfering outside 120 degree of dogleg section 4 places repaiied by last manual file, completes the chamfering of outer band.
Above-mentioned outer band chamfering method adopts file to remove excess stock, for pure manual operations, the size and dimension causing chamfering is extremely difficult to the changeover portion that specification and unification, particularly chamfering zoom in gradually, and chamfer shape and size that different operative employee's files is repaiied are not easy to unified.And, the production efficiency carrying out outer band chamfering by hand is also very low.Additionally, due to be that manual file is repaiied, the roughness of fillet surface is poor.
Summary of the invention
The technical issues that need to address of the present invention are: the chamfer dimesion repairing the outer band that chamfering method produces is filed in existing craft and shape difficulty reaches specification and unification.
Technical scheme is as described below:
The outer band forming method of a kind of TVS-2M grid spacer, comprises the following steps:
Step one, preliminary working
Use the mould matched with the outer band groove shapes of screen work, four breach are processed outside the relevant position at the chamfering place pair of four grooves of raw material plate, and hole, two location is processed at the edge of raw material plate, for being accurately positioned of chamfer machining step and profile blanking step；
By the canal mouth outside chamfering position, during to chamfering material flow to slot milling, make the material being extruded only flow to outside headspace, it is prevented that inside chamfering, to form material stacking protruding for product ontology part；
Step 2, chamfer machining
Using the chamfer mould matched with four groove chamfer shapes, the interior survey at four breach processes chamfering, during described chamfer machining, material can flow to the breach direction outside chamfering, and forms unnecessary overlap；
Step 3, profile blanking
Using outer band profile mould, the raw material plate that abovementioned steps is processed is processed, and processes the shape of the zigzag guide vane on outer band, groove and lap joint, and in the course of processing, the overlap at groove chamfering place can be removed；
Step 4, guide vane bending
Utilize guide vane Bending Mould, by the guide vane bending of the upper and lower both sides of outer band to predetermined angular；
Step 5, lap joint molding
Utilize lap joint Bending Mould, by outer band and the dislocation type molding of outer band lap-joint；
Step 6, groove bending and molding
Utilize groove bend forming die, at twice the groove on both sides is bent into 120 degree, complete the manufacture of the outer band of screen work.
Preferably, Cold Press Working mode it is processed as described in.
Preferably, the position that hole, described location is arranged is arranged in the material part that described step 3 can be removed.
The invention have the benefit that
The chamfer dimesion of the outer band that the chamfering method of the present invention produces and shape are accurate, unified, and fillet surface roughness is good, and production relatively rate can be made to be largely increased.
Accompanying drawing explanation
Fig. 1 is that the outer band of TVS-2M grid spacer launches schematic diagram；
Fig. 2 is that preliminary working completes schematic diagram；
Fig. 3 is chamfer machining schematic diagram；
Fig. 4 is that profile blanking completes schematic diagram；
Fig. 5 is that guide vane bending completes schematic diagram；
Fig. 6 is that lap joint bending completes schematic diagram；
Fig. 7 is the outer band schematic diagram after machining.
Detailed description of the invention
Below in conjunction with drawings and Examples, the outer band forming method of a kind of TVS-2M grid spacer of the present invention is described in detail.
Manufacturing the outer band of grid spacer as shown in Figure 1, it is the strip thin slice that thickness is 0.8mm, and upper and lower distribution has the zigzag guide vane symmetrical along axis.Having 4 place's grooves at two 120 ° of bending position of center line, the edge of groove has chamfering, and this belongs to inequilateral chamfering.
Its manufacture specifically includes following steps:
Step one, preliminary working
As shown in Figure 2, use the mould matched with the outer band groove shapes of screen work, outside the relevant position at the chamfering place pair of 4 grooves of raw material plate, process 4 breach, and process hole, two location at the edge of raw material plate, for being accurately positioned of chamfer machining step and profile blanking step.
By the canal mouth outside chamfering position, during to chamfering material flow to slot milling, make the material being extruded only flow to outside headspace, it is prevented that inside chamfering, to form material stacking protruding for product ontology part.
Step 2, chamfer machining
As it is shown on figure 3, use the chamfer mould matched with 4 groove chamfer shapes, the interior survey at 4 breach processes chamfering, during described chamfer machining, material can flow to the breach direction outside chamfering, and forms unnecessary overlap.
Step 3, profile blanking
As shown in Figure 4, using outer band profile mould, the raw material plate that abovementioned steps is processed is processed, and processes the shape of the zigzag guide vane on outer band, groove and lap joint, and in the course of processing, the overlap at groove chamfering place can be removed.
Step 4, guide vane bending
As it is shown in figure 5, utilize guide vane Bending Mould, by the guide vane bending of the upper and lower both sides of outer band to predetermined angular.
Step 5, lap joint molding
As shown in Figure 6, utilize lap joint Bending Mould, by outer band and the dislocation type molding of outer band lap-joint.
Step 6, groove bending and molding
As it is shown in fig. 7, utilize groove bend forming die, at twice the groove on both sides is bent into 120 degree, completes the manufacture of the outer band of screen work.
Embodiment 2
The present embodiment and embodiment 1 are processed as Cold Press Working mode described in being distinctive in that.
Embodiment 3
The present embodiment and embodiment 2 are distinctive in that, the position that hole, described location is arranged is arranged in the material part that described step 3 can be removed.
Claims (3)
1. the outer band forming method of TVS-2M grid spacer, it is characterised in that: comprise the following steps:
Step one, preliminary working
Use the mould matched with the outer band groove shapes of screen work, four breach are processed outside the relevant position at the chamfering place pair of four grooves of raw material plate, and hole, two location is processed at the edge of raw material plate, for being accurately positioned of chamfer machining step and profile blanking step；
By the canal mouth outside chamfering position, during to chamfering material flow to slot milling, make the material being extruded only flow to outside headspace, it is prevented that inside chamfering, to form material stacking protruding for product ontology part；
Step 2, chamfer machining
Using the chamfer mould matched with four groove chamfer shapes, the interior survey at four breach processes chamfering, during described chamfer machining, material can flow to the breach direction outside chamfering, and forms unnecessary overlap；
Step 3, profile blanking
Using outer band profile mould, the raw material plate that abovementioned steps is processed is processed, and processes the shape of the zigzag guide vane on outer band, groove and lap joint, and in the course of processing, the overlap at groove chamfering place can be removed；
Step 4, guide vane bending
Utilize guide vane Bending Mould, by the guide vane bending of the upper and lower both sides of outer band to predetermined angular；
Step 5, lap joint molding
Utilize lap joint Bending Mould, by outer band and the dislocation type molding of outer band lap-joint；
Step 6, groove bending and molding
Utilize groove bend forming die, at twice the groove on both sides is bent into 120 degree, complete the manufacture of the outer band of screen work.
2. the outer band forming method of TVS-2M grid spacer as claimed in claim 1, it is characterised in that: described in be processed as Cold Press Working mode.
3. the outer band forming method of TVS-2M grid spacer as claimed in claim 2, it is characterised in that: the position that hole, described location is arranged is arranged in the material part that described step 3 can be removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830025.4A CN105772568B (en) | 2014-12-26 | 2014-12-26 | A kind of outer band forming method of TVS 2M grid spacers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830025.4A CN105772568B (en) | 2014-12-26 | 2014-12-26 | A kind of outer band forming method of TVS 2M grid spacers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105772568A true CN105772568A (en) | 2016-07-20 |
| CN105772568B CN105772568B (en) | 2017-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410830025.4A Active CN105772568B (en) | 2014-12-26 | 2014-12-26 | A kind of outer band forming method of TVS 2M grid spacers |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500253A (en) * | 2018-12-29 | 2019-03-22 | 中核北方核燃料元件有限公司 | A kind of outer band punching die of nuclear fuel assembly grid spacer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03259795A (en) * | 1990-03-09 | 1991-11-19 | Nuclear Fuel Ind Ltd | Supporting grid for fuel assembly |
| CN101850384A (en) * | 2009-03-31 | 2010-10-06 | (株)进荣精机 | Pattern molding method of straps |
| CN102760498A (en) * | 2012-07-18 | 2012-10-31 | 中国核动力研究设计院 | Positioning trellis with hooking risk reduction function for nuclear fuel component |
-
2014
- 2014-12-26 CN CN201410830025.4A patent/CN105772568B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03259795A (en) * | 1990-03-09 | 1991-11-19 | Nuclear Fuel Ind Ltd | Supporting grid for fuel assembly |
| CN101850384A (en) * | 2009-03-31 | 2010-10-06 | (株)进荣精机 | Pattern molding method of straps |
| CN102760498A (en) * | 2012-07-18 | 2012-10-31 | 中国核动力研究设计院 | Positioning trellis with hooking risk reduction function for nuclear fuel component |
Non-Patent Citations (2)
| Title |
|---|
| 叶远东: "AFA 3G定位格架条带技术研究", 《中国核科技报告》 * |
| 夏成烈: "镍基合金定位格架制造", 《中国核科技报告》 * |
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| CN105772568B (en) | 2017-11-28 |
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