CN109551180A - A kind of processing technology of threaded long casing - Google Patents
A kind of processing technology of threaded long casing Download PDFInfo
- Publication number
- CN109551180A CN109551180A CN201811443617.5A CN201811443617A CN109551180A CN 109551180 A CN109551180 A CN 109551180A CN 201811443617 A CN201811443617 A CN 201811443617A CN 109551180 A CN109551180 A CN 109551180A
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- China
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- processing technology
- blank
- long casing
- threaded long
- punch die
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- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 title claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000010079 rubber tapping Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 14
- 238000005553 drilling Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 229920000914 Metallic fiber Polymers 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
Disclosed by the invention is a kind of processing technology of threaded long casing, it includes cold headers shearing blank, lower end surface chamfer shaping, upper end surface chamfer shaping and lower end surface molding location hole, stretches macropore, stretch mesoporous, stretch aperture, head molding, drilling, the several steps of tapping.The present invention forms the threaded long casing of 200mm long using cold-heading+drilling+tapping processing technology, and relative to the full machine-tooled method of tradition, stock utilization is significantly improved；And processed using continuous cold heading, improve production efficiency；Since the metallic fiber of blank in forming process is not cut off, in the case where not being heat-treated, it can also be ensured that relatively stronger mechanical performance；It only needs simple drilling device and multi-functional tooth machining unit that finished product can be completed after cold-heading molding, eliminates the expense of a large amount of machining times and machining apparatus, hence it is evident that reduce production cost.
Description
Technical field
It is specifically exactly to be related to a kind of processing of threaded long casing the invention belongs to hardware spare and accessory parts processing technique field
Technique is particularly suitable for the processing of the threaded long casing of 200mm long.
Background technique
It is usually used in machinery industry to arrive various hardwares as processing and installation, such as fastener is exactly a kind of common
Hardware, be used a kind of mechanical when two or more parts or component to be fastenedly connected into an entirety
The general name of part, threaded long casing are a kind of non-standard fasteners.
Traditionally, the band big line footpath material of the long casing multiselect of nut is completed exterior contour size on lathe, drilling machine, is bored
The processes such as inner hole, cutted thread, stock utilization is extremely low, and down to 30~40%, deep hole drilling difficulty is big, to equipment frock requirement
Height, machining working hour is longer, and production efficiency and production capacity are low, the demand that do not can meet mass production.
Summary of the invention
The purpose of the present invention is to the processing technology of the threaded long casing of existing 200mm long, there are raw material availabilities
Low, machining apparatus requires technological deficiency high, that production efficiency is low, provides a kind of processing technology of threaded long casing, passes through
Cold-heading+drilling+tapping processing method first forms cold heading blank on six station cold headers, then on a particular device
Centre bore is drilled out, finally forms and examine screw thread on multi-functional tooth machining unit, utilization rate of raw materials is up to 95% or more, production efficiency
Height, production cost is low, can satisfy typical products in mass production production requirement.
Technical solution
In order to achieve the above technical purposes, the processing method that the present invention designs is as follows:
A kind of processing technology of threaded casing, which is characterized in that it including the following steps:
(1) cold headers shear blank；
(2) lower end surface chamfer shaping；
(3) shaping of upper end surface chamfer and lower end surface form location hole；
(4) macropore is stretched；
(5) mesoporous is stretched；
(6) aperture is stretched；
(7) head molding and upper surface form location hole；
(8) it drills；
(9) tapping.
Further, the relative motion that Go-over mould and cut-off-die are led in the step (1) is cut out the suitable blank of length.
Further, in the step (2) under the action of punch die, blank forms the chamfering of R2, shaping bottom in main mould
End face punch die encases part blank, the shaping upper surface in punch die, and main mould rushes stick in the preforming location hole of the blank other end.
Further, activity main mould is used in the step (3), punch die encases part blank, and R5 is formed in punch die and is fallen
Angle, shaping upper surface, main mould rush stick and form location hole in the blank other end.
Further, macropore is formed using hollow object forward extrusion in the step (4).
Further, drawing mesoporous is continued using hollow object forward extrusion in the step (5).
Further, drawing aperture is continued using hollow object forward extrusion in the step (6).
Further, free compression forms head flanges and upper surface location hole between main mould and punch die in the step (7).
Further, unthreaded hole is drilled out in the step (8).
Further, it is formed on multi-functional tooth machining unit in the step (9) and examines screw thread.
Advantage for present invention is as follows compared with prior art:
1. high production efficiency: cold-heading Multi-station automatic molding machine, 50~60pcs/min of production capacity.
2. raw material availability is high, at low cost: it is machining compared to big line footpath material, cold-heading almost without waste cut materials,
Only drilling has a small amount of material loss, and stock utilization is up to 95% or more, and the cost of material is low.
3. good mechanical property: the metallic fiber of blank is not cut off in forming process, in the case where not being heat-treated, may be used also
To guarantee relatively stronger mechanical performance
4. production cost is low: cold-heading straight forming eliminates the expense of a large amount of machining times and high machining apparatus,
Production cost is substantially reduced.
Detailed description of the invention
Attached drawing 1 is the first station blank schematic diagram in the embodiment of the present invention；
Attached drawing 2 is second station blank schematic diagram in the embodiment of the present invention；
Attached drawing 3 is 3rd station blank schematic diagram in the embodiment of the present invention；
Attached drawing 4 is the 4th station blank schematic diagram in the embodiment of the present invention；
Attached drawing 5 is the 5th station blank schematic diagram in the embodiment of the present invention；
Attached drawing 6 is the 6th station blank schematic diagram in the embodiment of the present invention；
Attached drawing 7 is the 7th station blank schematic diagram in the embodiment of the present invention；
Attached drawing 8 is eighth station blank schematic diagram in the embodiment of the present invention；
Attached drawing 9 is the 9th station blank schematic diagram in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
In order to solve the process issues of the threaded long casing of 200mm long, the present invention is set using six moulds, six cold-heading molding
The equipment such as standby+drilling machine+tooth machining unit realize the processing of the threaded long casing of 200mm long by cold-heading+drilling+tapping technique.
Cutting material in first station forming process as shown in figure 1, herein using the shear-deformable mode of plasticity
Continuous cold-heading wire rod is cut off one by one, shearing length is converted by volume of part conservation principle.The used wired mould of mold
And shear action, general provision, line are completed as shearing edge, crisscross motion in cut-off-die, Liang Ge mold center, contact surface aperture, hole
Die hole diameter=line footpath+0.05mm, cut-off-die aperture=line footpath+0.10mm.
It is the blank of two stations as shown in Fig. 2, the sizing die in forming process, under the action of punch die, blank is in master
R2 chamfering is formed in mould, shaping lower end surface guarantees the planarization of part lower end surface.
It is the blank of three stations as shown in Fig. 3, the movable sizing die in forming process, punch die encases part blank,
R5 chamfering is formed in punch die, shaping upper surface guarantees the planarization of part upper surface, and main mould is rushed stick and formed in the blank other end
The location hole of φ 21.5 stretches the concentricity done positioning and guarantee deep hole and outer bar for lower station deep hole.
It is the blank of four stations as shown in Fig. 4, hollow object forward extrusion, technology characteristics are that main mould rushes stick equipped with sizing
Band structure, calibrating strap can reduce metal in forming process and rush the contact area between stick, to reduce frictional resistance, avoid interior
Hole surface is pulled, and can get preferable surface quality and circularity, the type conical bench that club head is equipped with 6 ° and 55 ° is rushed, both under
One station deep hole drawing and forming location hole, 90~120 ° of chamfering when in turn ensuring macropore and mesoporous transition.
It is the blank of five stations as shown in Fig. 5, hollow object forward extrusion, technology characteristics are to rush stick for the punching of two steps
Stick rushes club head equipped with sizing band structure, the mesoporous of one-off drawing 60mm depth.
It is the part of six stations as shown in Fig. 6, hollow object forward extrusion continues to stretch aperture.
It is the blank of seven station cold-heading moldings as shown in Fig. 7, technology characteristics are part among main mould and punch die
Free compression forms head, while punch die rushes stick and forms location hole in upper surface, rushes stick formed punch equipped with 37.5 °, diameter φ
14.6 tapered hole is oriented to for subsequent drilling, the generation of aperture burr when avoiding drilling.
It is the part after eight-station borehole as shown in Fig. 8, aperture is φ 12.2.
It is the finished product that nine stations form M14*2.0 on multi-functional tooth machining unit as shown in Fig. 9.
Advantage for present invention is as follows compared with prior art:
1. high production efficiency: cold-heading Multi-station automatic molding machine, 50~60pcs/min of production capacity.
2. raw material availability is high, at low cost: it is machining compared to big line footpath material, cold-heading almost without waste cut materials,
Only drilling has a small amount of material loss, and stock utilization is up to 95% or more, and the cost of material is low.
3. good mechanical property: since the metallic fiber of blank in forming process is not cut off, in the case where not being heat-treated,
It can also guarantee relatively stronger mechanical performance
4. production cost is low: due to cold-heading straight forming, eliminating a large amount of machining times and high machining apparatus
Expense, production cost are substantially reduced.
The present embodiment structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre ", " clockwise ", " counterclockwise " term,
It is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified,
It is changed under technology contents without essence, when being also considered as the enforceable scope of the present invention.
Claims (10)
1. a kind of processing technology of threaded casing, which is characterized in that it including the following steps:
(1) cold headers shear blank；
(2) lower end surface chamfer shaping；
(3) shaping of upper end surface chamfer and lower end surface form location hole；
(4) macropore is stretched；
(5) mesoporous is stretched；
(6) aperture is stretched；
(7) head molding and upper surface form location hole；
(8) it drills；
(9) tapping.
2. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: lead in the step (1)
The relative motion of Go-over mould and cut-off-die is cut out the suitable blank of length.
3. the processing technology of threaded long casing as described in claim 1 a kind of, it is characterised in that: in the step (2)
Under the action of punch die, blank forms the chamfering of R2 in main mould, and shaping bottom end face punch die encases part blank, in punch die
Shaping upper surface, main mould rush stick in the preforming location hole of the blank other end.
4. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: it is adopted in the step (3)
With activity main mould, punch die encases part blank, R5 chamfering is formed in punch die, shaping upper surface, it is another in blank that main mould rushes stick
One end forms location hole.
5. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: it is adopted in the step (4)
Macropore is formed with hollow object forward extrusion.
6. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: it is adopted in the step (5)
Continue drawing mesoporous with hollow object forward extrusion.
7. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: it is adopted in the step (6)
Continue drawing aperture with hollow object forward extrusion.
8. the processing technology of threaded long casing as described in claim 1 a kind of, it is characterised in that: in the step (7)
Free compression molding head flanges and upper surface location hole between main mould and punch die.
9. a kind of processing technology of threaded long casing as described in claim 1, it is characterised in that: it is bored in the step (8)
Light hole.
10. the processing technology of threaded long casing as described in claim 1 a kind of, it is characterised in that: in the step (9)
It is formed on multi-functional tooth machining unit and examines screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443617.5A CN109551180A (en) | 2018-11-29 | 2018-11-29 | A kind of processing technology of threaded long casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443617.5A CN109551180A (en) | 2018-11-29 | 2018-11-29 | A kind of processing technology of threaded long casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109551180A true CN109551180A (en) | 2019-04-02 |
Family
ID=65867937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811443617.5A Pending CN109551180A (en) | 2018-11-29 | 2018-11-29 | A kind of processing technology of threaded long casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109551180A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743020A (en) * | 2020-12-09 | 2021-05-04 | 贵阳万江航空机电有限公司 | Method for processing elongated hole part by cold heading process |
| CN113020515A (en) * | 2021-03-11 | 2021-06-25 | 南昌市三易汽配有限公司 | Air conditioner inflation valve seat machining method |
| CN114406166A (en) * | 2021-12-31 | 2022-04-29 | 铭昊汽车金属零部件(广州)有限公司 | Square rod with circular flange and manufacturing method thereof |
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|---|---|---|---|---|
| JP2002224789A (en) * | 2001-02-02 | 2002-08-13 | Minebea Co Ltd | Method for manufacturing rough shape material for wedge bolt |
| JP2005305483A (en) * | 2004-04-20 | 2005-11-04 | Toyota Motor Corp | Extrusion-forging apparatus and extrusion-forging method |
| CN101618422A (en) * | 2009-07-17 | 2010-01-06 | 宁波安拓实业有限公司 | Manufacturing method of internal jacket |
| CN102069348A (en) * | 2010-11-19 | 2011-05-25 | 宁波行一汽车零部件有限公司 | Method for manufacturing hose connector core |
| CN104439002A (en) * | 2014-11-15 | 2015-03-25 | 苏州工业园区新凯精密五金有限公司 | Adapter shaft cold heading forming technology and die structure of formed flower gear |
| CN106475505A (en) * | 2015-08-25 | 2017-03-08 | 上海精拓模具制造有限公司 | A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading |
| CN107584059A (en) * | 2017-08-30 | 2018-01-16 | 鹏驰五金制品（昆山）有限公司 | One kind equals quick-fried shell processing technology |
| CN107931497A (en) * | 2017-11-27 | 2018-04-20 | 上海鸿基金属制品有限公司 | Combine the cold-heading molding technique of fixed link |
-
2018
- 2018-11-29 CN CN201811443617.5A patent/CN109551180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224789A (en) * | 2001-02-02 | 2002-08-13 | Minebea Co Ltd | Method for manufacturing rough shape material for wedge bolt |
| JP2005305483A (en) * | 2004-04-20 | 2005-11-04 | Toyota Motor Corp | Extrusion-forging apparatus and extrusion-forging method |
| CN101618422A (en) * | 2009-07-17 | 2010-01-06 | 宁波安拓实业有限公司 | Manufacturing method of internal jacket |
| CN102069348A (en) * | 2010-11-19 | 2011-05-25 | 宁波行一汽车零部件有限公司 | Method for manufacturing hose connector core |
| CN104439002A (en) * | 2014-11-15 | 2015-03-25 | 苏州工业园区新凯精密五金有限公司 | Adapter shaft cold heading forming technology and die structure of formed flower gear |
| CN106475505A (en) * | 2015-08-25 | 2017-03-08 | 上海精拓模具制造有限公司 | A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading |
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| CN107931497A (en) * | 2017-11-27 | 2018-04-20 | 上海鸿基金属制品有限公司 | Combine the cold-heading molding technique of fixed link |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743020A (en) * | 2020-12-09 | 2021-05-04 | 贵阳万江航空机电有限公司 | Method for processing elongated hole part by cold heading process |
| CN112743020B (en) * | 2020-12-09 | 2022-11-15 | 贵阳万江航空机电有限公司 | Method for processing elongated hole part by using cold heading process |
| CN113020515A (en) * | 2021-03-11 | 2021-06-25 | 南昌市三易汽配有限公司 | Air conditioner inflation valve seat machining method |
| CN114406166A (en) * | 2021-12-31 | 2022-04-29 | 铭昊汽车金属零部件(广州)有限公司 | Square rod with circular flange and manufacturing method thereof |
| CN114406166B (en) * | 2021-12-31 | 2024-03-12 | 铭昊汽车金属零部件(广州)有限公司 | Square rod with round flange and manufacturing method thereof |
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