CN105522331B - A kind of moulding process of metal cap - Google Patents
A kind of moulding process of metal cap Download PDFInfo
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- CN105522331B CN105522331B CN201410523146.4A CN201410523146A CN105522331B CN 105522331 B CN105522331 B CN 105522331B CN 201410523146 A CN201410523146 A CN 201410523146A CN 105522331 B CN105522331 B CN 105522331B
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Abstract
The invention discloses a kind of moulding process of metal cap, the metal cap is by top, bending and molding in the bending part one bending and molding of top edge, the height of the metal cap is h, wall thickness is t, a diameter of d at the top, the top is provided with the through hole of an a diameter of d ', and the moulding process comprises the following steps：Selection, shear, blanking, first shaping, shaping, punching, face work deburring, inspection, galvanizing, service check, packaging.The moulding process of metal cap disclosed by the invention, processing technology is simple, through multiple manufacturing procedures such as blanking, pre-profiling, shaping in process, metal cap dimensional accuracy after machine-shaping is high, shaping is zinc-plated after metal cap medial and lateral, the ageing-resistant of metal cap, corrosion resistant, decay resistance are improved, the high-voltage switch gear for being adapted to work under open-air conditions uses.
Description
Technical field
The present invention relates to a kind of metal working process, and in particular to a kind of moulding process of metal cap.
Background technology
Outdoor equipment use condition is harsh, strict in waterproof, antirust, anti-aging etc. requirement, especially exhausted in SF6 gases
In the outdoor application of edge metal enclosed switchgear, require high for water resistancees such as flange connection, mechanism case, cover plates, use
Amount is big.The waterproof at these positions is mainly reflected at bolted connection and flange, cover plate joint face.
Chinese utility model patent CN203670423U discloses a kind of bolt water proof type sealing structure, including bolt and
Nut, bolt coordinate through vessel flange and nut, are equipped with metal cap and rubber blanket successively on bolt, metal cap is bowl
Shape, the shape of rubber blanket are adapted with the bowl-shape vacancy shape of metal cap, and rubber blanket insertion is arranged in bowl-shape vacancy.This reality
With new structure is simple, practical function, good water-proof effect, resistance to ag(e)ing is strong, and processing cost is low, is adapted to make under a large amount of open-air conditions
With.Because in the utility model, the thickness value of rubber blanket is more than the height value of the bowl-shape vacancy of metal cap, and the mesopore of rubber blanket
Diameter is adapted with the diameter of bolt, so the dimension precision requirement height of metal cap of the present utility model is, it is necessary to there is unified technique
Processing standard limits the processing of metal cap.
The content of the invention
It is an object of the present invention to provide a kind of moulding process of metal cap, processing technology is simple, the metal cap chi of machine-shaping
Very little precision is high, and ageing-resistant, corrosion resistant, decay resistance are strong, and the high-voltage switch gear for being adapted to work under open-air conditions uses.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of moulding process of metal cap, the metal cap
By top, bending and molding in the bending part one bending and molding of top edge, the height of the metal cap is h, wall thickness t, institute
A diameter of d at top is stated, the top is provided with the through hole of an a diameter of d ', and the moulding process comprises the following steps：
(1) selection：Choose the rectangle cold-rolled steel sheet that the wide * thickness of long * is a*b*t；
(2) shear：Bar steel plate using plate shearing machine by cold-rolled steel sheet position shearing into the wide * thickness of m block lengths * for a ' * b*t,
Wherein, (m+1) * a '>a>m*a′；
(3) blanking：The n a diameter of D set in two separate ranks material-dropping hole is provided with blanking die, is then put in blanking die
On 80T punch presses, one of bar steel plate is put on blanking die, starts punch press, n a diameter of D of blanking forming circular steel
Plate, wherein, D>D+2h, 3D>a′>2D,
(4) first shaping：First shaping mould is put on 80T punch presses, then circular steel plate is put on first shaping mould
Carry out bending and strike out blank of metal cap, and ensure bending part external arc initial radium<R+1.5, blank of metal cap
Top diameter be d, height>h；
(5) shaping：Sizing die is put on 80T punch presses, metal cap blank is then put in punching press shaping on sizing die, obtained
The secondary blank of metal cap, and ensure bending part outer arc radius R in place, the inside/outside diameter size of the secondary blank of metal cap, top and
The angle of bending part meets design size；
(6) punching：Perforating die is put on 25T punch presses, then the secondary blank of metal cap is placed on perforating die, starts punching
Bed, is d ' in punching aperture on the top of the secondary blank of metal cap, obtains metal cap blank three times；
(7) face work deburring：By metal cap, blank is placed on numerically controlled lathe three times, and is clamped with special fixture, car folding
The end face of turn of bilge to the height of metal cap is h, obtains metal cap finished product；
(8) examine：Examine the size everywhere of metal cap by drawing using slide measure, dial gauge, R rule, if qualified,
Carry out next step；If unqualified, repeat step (5)~(8), or directly scrap；
(9) galvanizing：Metal cap is placed on galvanization production line and carries out galvanizing, and zinc layers thickness is detected with calibrator
Degree, ensure zinc coating thickness between 50~100 μm；
(10) service check：The performance of metal cap is examined by figure using universal testing machine and special gauge, if qualified, is carried out
Next step；If unqualified, directly scrap；
(11) pack：Packed and cased through metal cap by protocol requirement using baling press, storage, treat shipment.
Preferably, the height h=9.7 of the metal cap, the diameter d=35 at the top,
Diameter d '=22.4 for the through hole that the top is provided with；
The long a=2000 of the rectangle cold-rolled steel sheet, wide b=1200；
Long a '=115 of the bar steel plate, wide b=1200；
The m=17, n=41, D=54.7.
Need to set positioning hole on bar steel plate in above-mentioned step (3), during blanking, bar steel plate is positioned at
Expect on mould, therefore be the Working position for reserving positioning hole, the quantity n for being typically designed material-dropping hole on blanking die is odd number.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
The moulding process of metal cap disclosed by the invention, processing technology is simple, through blanking, pre-profiling, whole in process
Multiple manufacturing procedures such as shape, the metal cap dimensional accuracy after machine-shaping is high, is molded, raising zinc-plated after metal cap medial and lateral
The ageing-resistant of metal cap, corrosion resistant, decay resistance, the high-voltage switch gear for being adapted to work under open-air conditions use.
Brief description of the drawings
Fig. 1 is the structural representation of metal cap in the embodiment of the present invention one.
Description of reference numerals：
1st, top；
2nd, bending part.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one：A kind of moulding process of metal cap, as shown in figure 1, the metal cap by top 1, bending and molding in
The 2 integral bending and molding of bending part at the edge of top 1, the height of the metal cap are h, wall thickness t, a diameter of d at the top,
The top is provided with the through hole of an a diameter of d ', and the moulding process comprises the following steps：
(1) selection：Choose the rectangle cold-rolled steel sheet that the wide * thickness of long * is a*b*t；
(2) shear：Bar steel plate using plate shearing machine by cold-rolled steel sheet position shearing into the wide * thickness of m block lengths * for a ' * b*t,
Wherein, (m+1) * a '>a>m*a′；
(3) blanking：The n a diameter of D set in two separate ranks material-dropping hole is provided with blanking die, is then put in blanking die
On 80T punch presses, one of bar steel plate is put on blanking die, starts punch press, n a diameter of D of blanking forming circular steel
Plate, wherein, D>D+2h, 3D>a′>2D,
Need to set positioning hole on bar steel plate when wherein, due to blanking, bar steel plate be positioned on blanking die,
Therefore it is the Working position for reserving positioning hole, the quantity n for being typically designed material-dropping hole on blanking die is odd number.
(4) first shaping：First shaping mould is put on 80T punch presses, then circular steel plate is put on first shaping mould
Carry out bending and strike out blank of metal cap, and ensure bending part external arc initial radium<R+1.5, blank of metal cap
Top diameter be d, height>h；
(5) shaping：Sizing die is put on 80T punch presses, metal cap blank is then put in punching press shaping on sizing die, obtained
The secondary blank of metal cap, and ensure bending part outer arc radius R in place, the inside/outside diameter size of the secondary blank of metal cap, top and
The angle of bending part meets design size；
(6) punching：Perforating die is put on 25T punch presses, then the secondary blank of metal cap is placed on perforating die, starts punching
Bed, is d ' in punching aperture on the top of the secondary blank of metal cap, obtains metal cap blank three times；
(7) face work deburring：By metal cap, blank is placed on numerically controlled lathe three times, and is clamped with special fixture, car folding
The end face of turn of bilge to the height of metal cap is h, obtains metal cap finished product；
(8) examine：Examine the size everywhere of metal cap by drawing using slide measure, dial gauge, R rule, if qualified,
Carry out next step；If unqualified, repeat step (5)~(8), or directly scrap；
(9) galvanizing：Metal cap is placed on galvanization production line and carries out galvanizing, and zinc layers thickness is detected with calibrator
Degree, ensure zinc coating thickness between 50~100 μm；
(10) service check：The performance of metal cap is examined by figure using universal testing machine and special gauge, if qualified, is carried out
Next step；If unqualified, directly scrap；
(11) pack：Packed and cased through metal cap by protocol requirement using baling press, storage, treat shipment.
In the present embodiment, the height h=9.7 of the metal cap, the diameter d=35 at the top, the top is provided with
Through hole diameter d '=22.4.
The long a=2000 of the rectangle cold-rolled steel sheet, wide b=1200.
Long a '=115 of the bar steel plate, wide b=1200.
The m=17, n=41, D=54.7.
Further, it is to adapt to processing technology requirement, each size need to have a margin of tolerance, in the present embodiment, the metal
Height h=9.7 ± 0.1 of cap, diameter d '=22.4 ± 0.2 for the through hole that the top is provided with.
The moulding process of metal cap disclosed by the invention, processing technology is simple, through blanking, pre-profiling, whole in process
Multiple manufacturing procedures such as shape, the metal cap dimensional accuracy after machine-shaping is high, is molded, raising zinc-plated after metal cap medial and lateral
The ageing-resistant of metal cap, corrosion resistant, decay resistance, the high-voltage switch gear for being adapted to work under open-air conditions use.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvement or replacement can also be made, these improve or replaced
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of moulding process of metal cap, it is characterised in that the metal cap is by top, bending and molding in the folding of top edge
Turn of bilge one bending and molding, the height of the metal cap is h, and wall thickness t, a diameter of d at the top, the top is provided with
One a diameter of d ' through hole, the moulding process comprise the following steps：
(1) selection：Choose the rectangle cold-rolled steel sheet that the wide * thickness of long * is a*b*t；
(2) shear：Using plate shearing machine by cold-rolled steel sheet position shearing into the bar steel plate that the wide * thickness of m block lengths * is a ' * b*t, wherein,
(m+1)*a′>a>m*a′；
(3) blanking：The n a diameter of D set in two separate ranks material-dropping hole is provided with blanking die, blanking die is then put in 80T
On punch press, one of bar steel plate is put on blanking die, startup punch press, n a diameter of D of blanking forming circular steel plate,
Wherein, D>D+2h, 3D>a′>2D,
<mrow>
<mo>(</mo>
<mfrac>
<mrow>
<mi>n</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mn>2</mn>
</mfrac>
<mo>+</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<mrow>
<mo>*</mo>
<mi>D</mi>
<mo>></mo>
<mi>b</mi>
<mo>></mo>
<mfrac>
<mrow>
<mi>n</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mn>2</mn>
</mfrac>
<mo>*</mo>
<mi>D</mi>
<mo>;</mo>
</mrow>
(4) first shaping：First shaping mould is put on 80T punch presses, then circular steel plate is put on first shaping mould and carried out
Bending strikes out blank of metal cap, and ensures bending part external arc initial radium<R+1.5, the top of blank of metal cap
The a diameter of d in portion, height>h；
(5) shaping：Sizing die is put on 80T punch presses, metal cap blank is then put in punching press shaping on sizing die, obtains metal
The secondary blank of cap, and ensure bending part outer arc radius R in place, inside/outside diameter size, top and the bending of the secondary blank of metal cap
The angle in portion meets design size；
(6) punching：Perforating die is put on 25T punch presses, then the secondary blank of metal cap is placed on perforating die, starts punch press,
It is d ' in punching aperture on the top of the secondary blank of metal cap, obtains metal cap blank three times；
(7) face work deburring：By metal cap, blank is placed on numerically controlled lathe three times, and is clamped with special fixture, car bending part
End face to the height of metal cap be h, obtain metal cap finished product；
(8) examine：Examine the size everywhere of metal cap by drawing using slide measure, dial gauge, R rule, if qualified, carry out
Next step；If unqualified, repeat step (5)~(8), or directly scrap；
(9) galvanizing：Metal cap is placed on galvanization production line and carries out galvanizing, and zinc coating thickness is detected with calibrator, is protected
Zinc coating thickness is demonstrate,proved between 50~100 μm；
(10) service check：The performance of metal cap is examined by figure using universal testing machine and special gauge, if qualified, is carried out next
Step；If unqualified, directly scrap；
(11) pack：Packed and cased through metal cap by protocol requirement using baling press, storage, treat shipment.
2. the moulding process of metal cap according to claim 1, it is characterised in that the height h=9.7 of the metal cap,
The diameter d=35 at the top, diameter d '=22.4 for the through hole that the top is provided with；
The long a=2000 of the rectangle cold-rolled steel sheet, wide b=1200；
Long a '=115 of the bar steel plate, wide b=1200；
The m=17, n=41, D=54.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523146.4A CN105522331B (en) | 2014-09-30 | 2014-09-30 | A kind of moulding process of metal cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523146.4A CN105522331B (en) | 2014-09-30 | 2014-09-30 | A kind of moulding process of metal cap |
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| Publication Number | Publication Date |
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| CN105522331A CN105522331A (en) | 2016-04-27 |
| CN105522331B true CN105522331B (en) | 2017-11-21 |
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| CN111756008A (en) * | 2020-06-23 | 2020-10-09 | 江苏双汇电力发展股份有限公司 | Core-shaped ring for pre-twisted strain clamp and manufacturing process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3705396A1 (en) * | 1987-02-20 | 1988-09-08 | Ferrostaal Ag | Method and installation for the production of angled or u-shaped handle elements |
| JPH11221641A (en) * | 1998-02-03 | 1999-08-17 | Nisshinbo Ind Inc | Method for press forming of brake shoe |
| CN101954429B (en) * | 2010-06-17 | 2012-12-19 | 无锡曙光模具有限公司 | Processing method and special processing mould of cover plate of refrigerator temperature controller |
| CN102319830A (en) * | 2011-07-14 | 2012-01-18 | 江苏海迅实业集团股份有限公司 | Manufacturing device and manufacturing method of wavy sheet for steel structure of heat exchange system |
| CN102909526B (en) * | 2012-08-28 | 2015-06-10 | 上海奥豪金属制品有限公司 | Method for manufacturing trench cover plate |
| CN103551454B (en) * | 2013-10-26 | 2015-07-01 | 广西科技大学 | Stamping method for automobile crankshaft signal panel |
| CN103752690B (en) * | 2014-01-23 | 2016-05-18 | 东莞虹日金属科技有限公司 | A kind of clutch case moulding process and former thereof |
| CN103934359A (en) * | 2014-04-23 | 2014-07-23 | 靖江三鹏汽车模具制造有限公司 | Blanking and punching process for cover board of flywheel vibration reducing system |
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