CN205270689U - Closed mould of contact seat - Google Patents
Closed mould of contact seat Download PDFInfo
- Publication number
- CN205270689U CN205270689U CN201520951121.4U CN201520951121U CN205270689U CN 205270689 U CN205270689 U CN 205270689U CN 201520951121 U CN201520951121 U CN 201520951121U CN 205270689 U CN205270689 U CN 205270689U
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- China
- Prior art keywords
- die
- drift
- cushion
- shaping
- die cavity
- 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.)
- Expired - Fee Related
Links
- 238000007493 shaping process Methods 0.000 claims abstract description 32
- 238000013022 venting Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 abstract description 30
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 238000010009 beating Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a closed mould of contact seat, drift including die sleeve and interior relative up -down cartridge, the die crushion, the drift is in the top of die crushion, the bottom surface epirelief of drift is equipped with the shaping convex part of the circular slot of contact seat that is used for taking shape, offer the shaping die cavity of the cylinder of contact seat that is used for taking shape on the die crushion, die cavity and the shaping convex part of taking shape is all arranged with the die sleeve is coaxial, offer the annular groove of the annular flange of contact seat that is used for taking shape on the bottom surface of drift, the annular groove transitional coupling is between the outer peripheral face of the bottom surface of drift and shaping convex part, and annular grooved ring is in the periphery of the convex part that is taking shape. Going on during flat type red copper contact seat closed cover contour forming technology design, be more than high structural feature according to the length of contact seat, the dummying spare that adopts the clavate is along radially forging the method that takes shape of beating to shortened the cycle that the contact seat takes shape, improved the contact seat and freely forged processing forming efficiency.
Description
Technical field
The utility model relates to the closed molds of a kind of contact base.
Background technology
At present, the platypelloid type contact base that a kind of material that vacuum interrupter uses is fine copper belongs to abnormity non-revolved body structure, and its flat plate body top and bottom are with the flange of different heights. As shown in Figure 1-2, standard contact base 8 comprises annular flange flange 81, plate body 82 and the right cylinder 83 arranged successively from top to bottom, and wherein annular flange flange 81 and right cylinder 83 are rotary structure, and plate body 82 is non-revolved body structure. Plate body 82 is the thick leveling board for h2 of plate, and the center at plate body 82 top is offered and had round groove 84; Annular flange flange 81 is in the upper end slot of round groove along place, and the height of annular flange flange is h1; Right cylinder 83 projection is in the lower lateral plates of plate body 82, and the height of plate cylinder body 83 is h3, the h1+h2+h3 length much smaller than plate body 82. In tradition processing mode, this contact base 8 adopts bar directly to process forming technology, and material use efficiency is very low, less than 17%; Mode as adopted common flat-die forging processing to be shaped produces the technique of this contact base, and material use efficiency increases, but not yet more than 31%.
Chinese patent literature CN104139146A discloses one " closed type cover die of contact base ", comprise mould cover and drift that interior guiding movement vertically assembles relatively, die-cushion, wherein the inner chamber of mould cover be divided into the upper cavity for slotting dress drift arranged from top to bottom, for holding the middle part die cavity at the edge of the whole forging of contact base and the bottom die cavity for inserting die-filling pad; Die-cushion is circular cylinder structure, and die-cushion has the inner chamber of the right cylinder for shaping standard contact base, the outer wall for coordinating with bottom die cavity, and die-cushion has the upper surface of the plate body lower surface for shaping standard contact base; Drift comprises die holder, the bottom of die holder center is provided with the protuberance of the groove for shaping standard contact base, die holder has the lower surface of the plate body upper surface for shaping standard contact base, and upper cavity has the inwall of the plate body side surface for shaping standard contact base. When forging, bar being put into the inner chamber of die-cushion, then drift forges and presses along the axis of die-cushion, goes out required contact base with the upsetting formation gradually along with bar. In the forging process of this kind of axial jumping-up forging and stamping, the metal structure at bar top need to be formed by the flowing of radial direction, and the flowing stroke of metal structure is relatively big, causes the deformation stroke of bar in the excellent suitability for press forming of contact base bigger, extend the cycle of forging and stamping processing, reduce working efficiency.
Practical novel content
The purpose of this utility model is to provide the closed molds of a kind of contact base improving contact base flat-die forging processing forming efficiency.
In order to realize above object, in the utility model, the technical scheme of the closed molds of contact base is as follows:
The closed molds of contact base, comprise mould cover and the interior drift relatively inserting dress up and down thereof, die-cushion, drift is in the top of die-cushion, the bottom surface of drift is convexly equipped with the shaping protuberance of the round groove for contour squeeze head seat, die-cushion is offered the shaping die cavity of the right cylinder for contour squeeze head seat, shaping die cavity and shaping protuberance are all coaxially arranged with mould cover, the bottom surface of drift is offered the annular recesses of the annular flange flange for contour squeeze head seat, annular recesses transition is connected between the bottom surface of drift and the periphery of shaping protuberance, and annular recesses is looped around on the periphery of shaping protuberance.
Shaping die cavity is the forming pockets of the circle offered on the end face of die-cushion, and the groove bottom of forming pockets is the closed bottom land of the lower surface for the described right cylinder that is shaped.
Also having offered venting hole on die-cushion, the aperture, one end of venting hole is connected forming pockets, the other end aperture is on the bottom surface of die-cushion.
Venting hole extends up and down, and the aperture, upper end of venting hole is in the groove bottom of forming pockets and is connected forming pockets, and the lower stomidium mouth of venting hole is on the bottom surface of die-cushion.
The inner chamber of mould cover is divided into from top to bottom with the drift upper cavity that guiding movement coordinates along the vertical direction with the die-cushion middle part die cavity that guiding movement coordinates along the vertical direction and up-narrow and down-wide bottom die cavity, and the upper port of bottom die cavity and the lower port of middle part die cavity are wholely set.
The inner-wall surface of bottom die cavity is the inner conical surface expanded outwardly gradually from top to bottom.
The utility model is when carrying out described platypelloid type red copper contact base closed type cover die design of Forming Technology, length according to contact base is much larger than the constructional feature of height, adopt the method for the pre-forging radially formed by forging of clavate, the processing method of formed by forging vertically in compared to existing technology, pre-forging flowing stroke of metal structure in formed by forging is reduced, thus shorten the cycle that contact base is shaped, it is to increase raising contact base flat-die forging processing forming efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing contact base;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the front view of pre-forging in embodiment of the present utility model;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation of forging preparatory stage eventually in embodiment of the present utility model;
Fig. 6 forges the structural representation after terminating eventually in embodiment of the present utility model;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the structural representation of drift in embodiment of the present utility model;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the structural representation of mould cover in embodiment of the present utility model;
Figure 11 is the vertical view of Figure 10;
Figure 12 is the structural representation of die-cushion in embodiment of the present utility model.
Embodiment
The embodiment of the closed molds of contact base in the utility model: as shown in Fig. 5 to Figure 12, this closed molds comprises mould cover 3, drift 2 and die-cushion 4.
As shown in Figure 10 and Figure 11, the inner chamber of mould cover 3 is divided into and is divided into drift 2 upper cavity 31 that guiding movement coordinates along the vertical direction with the die-cushion 4 middle part die cavity 32 that guiding movement coordinates along the vertical direction and up-narrow and down-wide bottom die cavity 33 from top to bottom, wherein the shape of upper cavity 31 is identical with the plate shape of contact base, the height of middle part die cavity 32 is h4, and the height of bottom die cavity 33 is h5. The object of design bottom die cavity 33 reduces the demoulding difficulty of die-cushion 4. The upper port of bottom die cavity 33 and the lower port of middle part die cavity 32 are wholely set, and the inner-wall surface of bottom die cavity 33 is the inner conical surface expanded outwardly gradually from top to bottom, to form the pattern draft 5 of annular between the inner-wall surface of bottom die cavity 33 and the periphery of die-cushion.
As shown in Figure 8 and Figure 9, drift 2 comprises the die holder 21 for guiding movement along the vertical direction is inserted in the upper cavity 31 of mould cover 3, the shape of die holder 21 is the non-revolved body structure that the shape complementarity with upper cavity 31 coincide, its cross section is identical with the shape of the plate body cross section of platypelloid type contact base, and its lower surface is used for the latus superius face of the plate body of contour squeeze head seat. The shaping protuberance 22 being coaxially convexly equipped with turbination on the bottom surface of die holder 21, the lower surface of this shaping protuberance 22 is used for the round groove of shaping flat type contact base upper center. Offering the annular recesses 23 being looped around around shaping protuberance 22 on the bottom surface of die holder 21, this annular recesses 23 transition is connected between the bottom surface of drift 2 and the periphery of shaping protuberance 22, and annular recesses 23 is for the annular flange flange of the upper surface of contour squeeze head seat.
As shown in figure 12, die-cushion 4 is cylindrical body structure, and the guiding that the periphery of die-cushion 4 coincide along the vertical direction with the chamber wall of the middle part die cavity 32 of mould cover 3 coordinates, and the height of die-cushion 4 is h6. Offering the shaping die cavity of the right cylinder for shaping flat type contact base on the end face of die-cushion 4, shaping die cavity is the forming pockets 41 overlapping 3 coaxial circles with mould, and the groove bottom of this forming pockets 41 is the closed bottom land of the lower surface for the described right cylinder that is shaped. The upper surface of die-cushion 4 is used for the lower surface of the plate body of shaping flat type contact base. Lower surface in order to make die-cushion 4 upper surface and mould overlap 3 upper cavity 31 fits tightly, and effectively reduces the burr even generation of overlap, during designing mould, the setting of the value of h6 is slightly greater than h4+h5. In order to ensure that the inner chamber of die-cushion 4 is unlikely to feel suffocated when the right cylinder of platypelloid type contact base is shaped, cause and fill discontented misrun and produce waste product, devise the venting hole 6 extended up and down coaxially arranged below forming pockets 41, the aperture, upper end of venting hole 6 is in the groove bottom of forming pockets 41 and is connected forming pockets 41, and the lower stomidium mouth of venting hole 6 is on the bottom surface of die-cushion 4.
For the ease of gripping mould, during designing mould, at least one the periphery disc in drift 2, mould cover 3 and die-cushion 4 offers jaw 7. And in the present embodiment, the periphery of drift 2, mould cover 3 and die-cushion 4 is equipped with jaw 7.
The Closed Forming technique of this platypelloid type contact base comprises the following steps:
1) get the raw materials ready, the elongated bar stock that preparation cross section is rounded, and this elongated bar stock is heated;
2) forging in advance, elongated bar stock lain on flat anvil, be radially swaged into pre-forging 1 in advance, as shown in Figure 3 and Figure 4, pre-forging 1 is in bar-shaped, and top, the bottom surface of pre-forging 1 are planar section, and pre-forging 1 pushes up, the planar section of bottom is parallel to each other;
3) forging preparation eventually, lie in closed molds by pre-forging 1, as shown in Figure 5, closed molds is made up of drift 2, the die-cushion 4 of mould cover 3 and interior relatively slotting dress up and down thereof;
4) forging eventually, when keeping mould cover 3 and die-cushion 4 not to move, drift 2 forges and presses downwards, pre-forging 1 is forged into whole forging 9 by the bottom surface of drift 2, as shown in Figure 6 and Figure 7.
In step 2) in, first die-cushion 4 is loaded in the middle part die cavity 32 of mould cover 3, then pre-forging 1 is put into the upper surface of die-cushion 4, then drift 2 is loaded in the top die cavity of mould cover 3, start tup and hit to beat and be swaged into shape the end that drift 2 can realize contact base. In step 3), after whole forger sequence completes, continue to hit downwards to make drift 2, it is possible to realize the whole forging 9 of contact base and overlap 3 from mould with die-cushion 4 simultaneously, it is achieved a parting; Then whole for contact base forging 9 is pressed from both sides out from die-cushion 4 and realize two partings. Owing to this mould adopts two-way mould-dividing mode, it is convenient to realize forging demoulding. Forming technology that the utility model designs and closed molds is utilized can successfully to forge this platypelloid type non-revolved body contact base. Compared with prior art, this technology production process is simple, contact base board body part is divided except the periphery part at two ends, all the other outer walls no longer carry out mechanical workout, material use efficiency is made to bring up to 65.8% from original nearly 31%, follow-up mechanical workout efficiency significantly improves, and tooling cost reduces 55.3%, remarkable in economical benefits.
Claims (6)
1. the closed molds of contact base, comprise mould cover and the interior drift relatively inserting dress up and down thereof, die-cushion, drift is in the top of die-cushion, the bottom surface of drift is convexly equipped with the shaping protuberance of the round groove for contour squeeze head seat, die-cushion is offered the shaping die cavity of the right cylinder for contour squeeze head seat, shaping die cavity and shaping protuberance are all coaxially arranged with mould cover, it is characterized in that, the bottom surface of drift is offered the annular recesses of the annular flange flange for contour squeeze head seat, annular recesses transition is connected between the bottom surface of drift and the periphery of shaping protuberance, and annular recesses is looped around on the periphery of shaping protuberance.
2. the closed molds of contact base according to claim 1, it is characterised in that, shaping die cavity is the forming pockets of the circle offered on the end face of die-cushion, and the groove bottom of forming pockets is the closed bottom land of the lower surface for the described right cylinder that is shaped.
3. the closed molds of contact base according to claim 2, it is characterised in that, die-cushion has also been offered venting hole, the aperture, one end of venting hole is connected forming pockets, the other end aperture is on the bottom surface of die-cushion.
4. the closed molds of contact base according to claim 3, it is characterised in that, venting hole extends up and down, and the aperture, upper end of venting hole is in the groove bottom of forming pockets and is connected forming pockets, and the lower stomidium mouth of venting hole is on the bottom surface of die-cushion.
5. the closed molds of contact base as claimed in any of claims 1 to 4, it is characterized in that, the inner chamber of mould cover is divided into from top to bottom with the drift upper cavity that guiding movement coordinates along the vertical direction with the die-cushion middle part die cavity that guiding movement coordinates along the vertical direction and up-narrow and down-wide bottom die cavity, and the upper port of bottom die cavity and the lower port of middle part die cavity are wholely set.
6. the closed molds of contact base according to claim 5, it is characterised in that, the inner-wall surface of bottom die cavity is the inner conical surface expanded outwardly gradually from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951121.4U CN205270689U (en) | 2015-11-25 | 2015-11-25 | Closed mould of contact seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951121.4U CN205270689U (en) | 2015-11-25 | 2015-11-25 | Closed mould of contact seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205270689U true CN205270689U (en) | 2016-06-01 |
Family
ID=56055310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520951121.4U Expired - Fee Related CN205270689U (en) | 2015-11-25 | 2015-11-25 | Closed mould of contact seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205270689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414427A (en) * | 2015-11-25 | 2016-03-23 | 平高集团有限公司 | Forming method for contact seat and closed die special for forming method |
-
2015
- 2015-11-25 CN CN201520951121.4U patent/CN205270689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414427A (en) * | 2015-11-25 | 2016-03-23 | 平高集团有限公司 | Forming method for contact seat and closed die special for forming method |
| CN105414427B (en) * | 2015-11-25 | 2018-07-10 | 平高集团有限公司 | A kind of manufacturing process of contact base and the closed molds for being exclusively used in the manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20201125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |