CN205200338U - No rivet constant temperature stamping die that punches a hole in advance that can fix a position - Google Patents
No rivet constant temperature stamping die that punches a hole in advance that can fix a position Download PDFInfo
- Publication number
- CN205200338U CN205200338U CN201521053493.1U CN201521053493U CN205200338U CN 205200338 U CN205200338 U CN 205200338U CN 201521053493 U CN201521053493 U CN 201521053493U CN 205200338 U CN205200338 U CN 205200338U
- Authority
- CN
- China
- Prior art keywords
- die shoe
- hole
- drift
- constant temperature
- diel
- 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
Landscapes
- Forging (AREA)
Abstract
The utility model discloses a no rivet constant temperature stamping die that punches a hole in advance that can fix a position, include: the drift, it is round platform type structure, and drift upper surface radius is greater than drift lower surface radius, die holder, its center hold chamber upper portion and are positive round platform die cavity for holding the chamber, and the lower part is the through -hole, positive round platform die cavity upper end opening setting plane on the die holder, lower extreme intercommunication through -hole, the pneumatic cylinder, it is arranged in the through -hole, the piston of pneumatic cylinder stretches out positive round platform die cavity upper end opening when non - punching press. The utility model has the characteristics of the connection between high -strength steel and the aluminum alloy is realized to no rivet to can accurately fix a position, simultaneously, still have by freezing drift and mould and make the riveting degree of accuracy not influenced.
Description
Technical field
The utility model relates to without rivet diel field, is specifically related to a kind of orientable pre-punched hole without the diel of rivet constant temperature.
Background technology
In order to pursue body lightening, under the prerequisite not changing body specifications, by optimizing body structure, bodywork parts manufacture and Joining Technology can be upgraded, substitute the methods such as traditional Medium And Low Strength Steels with light material and realize body structure lightweight.High-strength steel has the advantages such as high loss of weight potentiality, high impact absorption energy, high-fatigue strength, high formability and low degree anisotropy, and aluminium alloy has that quality is light, corrosion-resistant, specific strength is high, easy processing, surface aesthetic and the advantage such as cost recovery is low.So present vehicle body starts widely apply high-strength steel and aluminium alloy.But along with the development of heat forming technology, the high-strength steel intensity produced is also more and more higher, and super-high strength steel can reach about 1600Mpa, in traditional self-pierce riveting Joining Technology, rivet has been difficult to thrust steel plate and has formed effective joint.So just occurred that a kind of pre-punched hole is without rivet method, namely in heat forming processes by the punching in advance of high-strength steel steel plate, then in riveting process, aluminium sheet to be pressed in steel plate hole made in advance thus to form joint.Wherein, location between hole made in advance on steel plate and drift is a key point, because aluminium sheet is placed on above steel plate, so just can't see the position in hole on steel plate, if locate inaccurate, just aluminium sheet can accurately be pressed in the hole of steel plate and form effective joint.Therefore, the utility model devises a kind of orientable pre-punched hole without the diel of rivet constant temperature.
Utility model content
The utility model has designed and developed a kind of orientable pre-punched hole without the diel of rivet constant temperature.
One of the purpose of this utility model to solve in prior art because fusing point and thermal expansion coefficient difference are comparatively large when the dissimilar metal spot welding such as steel and aluminium alloy are connected, and the metallic compound that during welding, solder joint appearance is hard and crisp, is difficult to the problem realizing welding point effectively.
Two of the purpose of this utility model solves in prior art to be difficult to pinpoint problem between drift and pre-punched hole.
Three of the purpose of this utility model solves drift and mould in punching course, affects the stamping riveting degree of accuracy, and then affect the problem of riveting parts quality because temperature raises.
The utility model has the connection realizing between high-strength steel and aluminium alloy without rivet, and can the feature of precise positioning, meanwhile, also has and makes the impregnable feature of the riveted joint degree of accuracy by cooling drift and mould.
The technical scheme that the utility model provides is:
A kind of orientable pre-punched hole, without the diel of rivet constant temperature, comprising:
Drift, it is circular platform type structure, and described drift upper surface radius is greater than described drift lower surface radius;
Die shoe, its center is container cavity, and described container cavity top is positive circular platform type chamber, and bottom is through hole; Positive circular platform type chamber upper end open is arranged on plane on described die shoe, and lower end is communicated with described through hole;
Hydraulic cylinder, it is arranged in described through hole; The piston of described hydraulic cylinder stretches out described positive circular platform type chamber upper end open when non punching.
Preferably, also comprise base, described die shoe is arranged on described base.
Preferably, described die shoe is divided into fixing die shoe and movable die shoe along described container cavity symmetry; Described base is also provided with guide rail, and described movable die shoe along guide rail movement, thus can close with described fixing die shoe and is separated.
Preferably, described movable die shoe side connecting power device, it is for making described movable die shoe along described guide rail movement.
Preferably, described drift and described die shoe are respectively arranged with cooling fluid passage.
Preferably, annular cooling fluid passage is set in described drift.
Preferably, described fixing die shoe and/or described movable die shoe upper end edge through hole are around arranging cooling fluid passage.
Preferably, the cooling fluid passage inside of described die shoe arranges memorial alloy deflection plate, it is arranged multiple through hole.
The beneficial effect that the utility model is had compared with prior art:
1. aluminium alloy due to have higher thermal conductivity, surface oxidizable, therefore traditional spot welding Joining Technology is difficult to the connection realized between alloy plate material, when particularly steel is connected with dissimilar metal spot welding such as aluminium alloys due to fusing point and thermal expansion coefficient difference larger, during welding there is hard and crisp metallic compound in solder joint, is difficult to realize welding point effectively; Pre-punched hole described in the utility model adopts the self-piercing riveting of mechanical connection effectively to solve this problem without rivet diel, realizes the connection between high-strength steel and aluminium alloy;
2. compared with self-pierce riveting production technology in existing industrial production, the utility model adopts without rivet mode, by the location of accurate drift and pre-punched hole, exactly in the hole of aluminium sheet press-in steel plate, form effective joint, joint better effects if, tensile strength is higher, and cost is also lower;
3. by coaxially arranged to drift, piston and die, the diameter in the hole that the diameter of piston is made in advance with steel plate is identical, punching press secondary piston is up exceeds die one segment distance, borehole jack made in advance on high-strength steel steel plate can be realized on piston the accurate location in hole on drift and steel plate, simply be easy to realize, guarantee to stamp out qualified riveted joint;
4. after a large amount of punching press, drift inherently heats up, and drift not only can be made to expand thus affect the dimensional accuracy of riveting parts; Also affecting the forming quality of riveting parts because of very high temperature, by arranging that cooling fluid passage carries out cooling process to drift, can riveting quality be ensured;
5. in die shoe, arrange that cooling fluid passage carries out cooling process to die shoe, thus ensure the size of riveted joint; Because the round platform hole in overall die shoe is the region that aluminium sheet punching press is filled, if the too high intensity that can affect this part position of temperature, cooling fluid passage can keep the constant temperature of this part, thus proof strength, also extend the mold use life-span simultaneously.
Accompanying drawing explanation
Fig. 1 is the full sectional view of front view before riveting set described in the utility model riveted joint;
Fig. 2 is the full sectional view that riveting set described in the utility model has riveted rear front view;
Fig. 3 is the axonometric projection graph that riveting set described in the utility model has riveted when rear die shoe is opened;
Fig. 4 is drift front view described in the utility model;
Fig. 5 is the sectional view of drift described in the utility model along A-A face;
Fig. 6 is the front view of die shoe described in the utility model;
Fig. 7 is described in the utility model when cooling fluid passage fluid temperature (F.T.) higher than memorial alloy distortion threshold value, the sectional view along B-B face of fixing die shoe or movable die shoe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
As shown in Fig. 1 ~ 7, the utility model provides a kind of orientable pre-punched hole without the diel of rivet constant temperature, comprises drift 110, die shoe, positioning hydraulic cylinders; Hole on high-strength steel steel plate 140 is the diameter gone out at the position of needs riveted joint in advance in hot forming operation is the manhole of 9.9mm ~ 10mm; Wherein, drift 110 is truncated cone-shaped structural member, the axis of great circle of upper surface is 10mm, the axis of small circle of lower surface is 8mm, is highly 15mm, and the centre bore being placed in blank holder 120 is interior for being slidably connected, blank holder 120 is annulus bodily form structural member, be highly 15mm, outside diameter is 20mm, and interior circular diameter is 10mm; Die shoe entirety is square shape, and the length of side is 80mm, has a circular port from the center of lower surface, and the degree of depth in hole is 79mm, and namely from die holder lower surface until distance upper surface 1mm, bore dia is 14mm ~ 16mm.The hole of a truncated conical shape is down opened in the upper surface center of die shoe, the axis of small circle of round platform is 10mm, axis of great circle is 12mm, bus angle of inclination is 30 ° ~ 60 °, be highly 1mm, thus through with cylindrical hole below, drift 110 and die shoe coaxially arranged, be then fixed on track base 170 and guarantee that position no longer changes, piston 150 and cylinder barrel 160 constitute positioning hydraulic cylinders, positioning hydraulic cylinders and drift 110 and overall die shoe require coaxially arranged, then be fixed on track base 170 and guarantee invariant position, cylinder barrel 160 is highly 79mm, namely the upper surface of cylinder barrel 160 contacts with the upper surface of overall die shoe cylindrical hole, cylinder barrel 160 diameter is 14mm, bottom has two diameters to be the through hole of 2mm, one of them is inlet, another is leakage fluid dram, piston 150 diameter is 9.9mm ~ 10mm, concordant with cylinder barrel 160 upper surface when bottom dead center position, form a circular platform, because positioning hydraulic cylinders and drift 110 and overall die shoe coaxial, so piston 150 also with drift 110 and overall die shoe coaxial, drift 110 and die shoe are respectively arranged with cooling fluid passage, and are connected to temperature sensor and controller, for cooling liquid measure in controlled cooling model fluid passage and then regulating drift 110 underlaying surface temperature and die shoe upper surface temperature.
In another kind of embodiment, die shoe is divided into fixing die shoe 180 and movable die shoe 190 to constitute overall die shoe, fixing die shoe 180 is identical with movable die shoe 190, just fixing die shoe 180 is fixed on track base 170 and guarantees that position no longer changes, and movable die shoe 190 can slide along track base 170.
In another kind of embodiment, the piston rod of push-and-pull hydraulic cylinder 200 is welded on movable die shoe 190, and diameter of piston rod is 20mm ~ 30mm, and length is 60mm ~ 70mm; Before formation, piston rod stretches out promotion activity die shoe 190 and fixing die shoe 180 good closure, thus the truncated cone-shaped hole formed in overall die shoe, fill out riveting button for aluminium sheet during punching press and space is provided, complete back piston bar in punching press to retract, movable die shoe 190 is retracted the position away from fixing die shoe 180, and overall die shoe is opened, and can be taken out by riveting parts after track base 170 direction translation.
In another kind of embodiment, annular cooling fluid passage is had in drift 110, diameter is 2mm ~ 3mm, cooling fluid passage axial plane distance drift lower surface 3mm ~ 5mm, drift 110 in the vertical direction has two cylindrical holes and cools fluid passage with annular below and communicate, diameter is identical with the diameter of cooling fluid passage, and one of them cylindrical hole is water inlet, and another one cylindrical hole is delivery port.
In another kind of embodiment, fixing die shoe 180 and movable die shoe 190 are all provided with cooling fluid passage, cooling fluid passage arranges along the round platform hole of die shoe, two die shoes are arranged a cooling fluid passage respectively, water channel is around half, round platform hole circumference, water channel diameter is 5mm ~ 6mm, axial plane 9mm ~ 10mm lower than die shoe upper surface.
In another kind of embodiment, fixing die shoe 180 and movable die shoe 190 arrange memorial alloy deflection plate 181, it is arranged multiple through hole, it can be out of shape according to coolant temperature, the heat exchange that cooling fluid passage internal coolant is carried out is more abundant, the temperature of more efficiently reduction die shoe upper surface, when cooling fluid passage fluid temperature (F.T.) higher than distortion threshold value, it is 15 ° ~ 20 ° angles that deflection plate 181 is out of shape with cooling fluid passage wall; When cooling fluid passage fluid temperature (F.T.) lower than distortion threshold value, deflection plate 181 is fitted and is cooled fluid passage wall.
As shown in Figure 1, before punching press, hydraulic cylinder leakage fluid dram is closed, inlet feed liquor, the up 3mm of piston 150 arrives top dead centre and namely exceeds die shoe plane 2mm, by borehole jack made in advance on steel plate on piston 150, because piston 150 and drift 110 coaxially arranged, and piston 150 diameter is identical with the diameter in hole on steel plate, so achieve the accurate location in hole on drift 110 and steel plate 140, then aluminium sheet 130 is put, push-and-pull hydraulic cylinder 200 is implemented to carry out journey, along track base 170 promotion activity die shoe 190, until movable die shoe 190 contacts with fixing die shoe 180 contact surface, realize good closure.
As shown in Figure 2, when punching press is carried out, drift 110 is descending, and hydraulic cylinder leakage fluid dram is opened simultaneously, inlet is closed, and the descending arrival lower dead center of piston 150 is namely concordant with cylinder barrel 160 upper surface, form a circular platform, the aluminium sheet be stamped is packed in truncated cone-shaped hole and forms riveted joint snap close, and riveted joint terminates.
As shown in Figure 3, push-and-pull hydraulic cylinder 200 is implemented to draw stroke, and drive activity die shoe 190 is along track base 170 away from fixing die shoe 180, and overall die shoe realizes being separated, and riveting parts can be taken out riveting parts after track base 170 direction translation one segment distance.
Embodiment
In high-strength steel steel plate 140 heat forming processes, steel plate is gone out at riveting location the manhole that diameter is 10mm.
As shown in Figure 1, drift 110, positioning hydraulic cylinders and overall die shoe realize coaxially arranged, and hydraulic cylinder and fixing die shoe 180 position are fixed; Drift 110 is truncated cone-shaped structural member, and the axis of great circle of upper surface is 10mm, and the axis of small circle of lower surface is 8mm, and bus angle of inclination is 45 °, is highly 15mm, and internal cooling fluid passage diameter is 2.5mm, and axial plane and drift lower surface distance are 3mm.The centre bore that drift 110 is placed in blank holder 120 is interior for being slidably connected, blank holder 120 is annulus bodily form structural member, and be highly 15mm, outside diameter is 20mm, interior circular diameter is 10mm, piston 150 diameter 10mm, cylinder barrel 160 diameter 14mm, height 79mm, the upper contact i.e. distance die shoe upper surface of cylinder barrel 160 upper surface and overall die shoe cylindrical hole is 1mm, the square of overall die shoe to be the length of side be 80mm, the cylinder bore diameter at center is 16mm, is highly 79mm.
As shown in Figure 3, the diameter of push-and-pull hydraulic cylinder piston rod is 20mm, and length is 60mm.
A kind of riveting process of the present utility model is as follows:
As shown in Figure 1, inlet opening is opened, the up 3mm of piston 150 arrives top dead centre and holding position no longer changes, by borehole jack made for high-strength steel steel plate 140 on piston 150, realize the coaxial positioning of hole and drift 110, high-strength steel steel plate 140 is put aluminium sheet 130, pushes movable die shoe 190 to fixing die shoe 180 along track base 170, closed overall die shoe;
As shown in Figure 2, drift 110 is descending, the leakage fluid dram of hydraulic cylinder is opened simultaneously, the descending arrival lower dead center of piston 150 and holding position is constant, now the upper surface of piston 150 and cylinder barrel 160 forms a circular platform, the lower surface of drift 110 and the upper surface of high-strength steel steel plate 140 arrive lower dead center stroke when same level height to be terminated, and aluminium sheet 130 is filled to enter in the truncated cone-shaped hole of die shoe and formed riveted joint snap close under the pressure of drift 110;
As shown in Figure 3, push-and-pull hydraulic cylinder is implemented to draw stroke, pulls movable die shoe 190 along track base 170 away from fixing die shoe 180, is taken out by riveting parts, complete riveted joint after track base 170 direction translation 20mm.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (8)
1. orientable pre-punched hole is without the diel of rivet constant temperature, it is characterized in that, comprising:
Drift, it is circular platform type structure, and described drift upper surface radius is greater than described drift lower surface radius;
Die shoe, its center is container cavity, and described container cavity top is positive circular platform type chamber, and bottom is through hole; Positive circular platform type chamber upper end open is arranged on plane on described die shoe, and lower end is communicated with described through hole;
Hydraulic cylinder, it is arranged in described through hole; The piston of described hydraulic cylinder stretches out described positive circular platform type chamber upper end open when non punching.
2. orientable pre-punched hole as claimed in claim 1 is without the diel of rivet constant temperature, it is characterized in that, also comprises base, and described die shoe is arranged on described base.
3. orientable pre-punched hole as claimed in claim 2 is without the diel of rivet constant temperature, it is characterized in that, described die shoe is divided into fixing die shoe and movable die shoe along described container cavity symmetry; Described base is also provided with guide rail, and described movable die shoe along guide rail movement, thus can close with described fixing die shoe and is separated.
4. orientable pre-punched hole as claimed in claim 3 is without the diel of rivet constant temperature, it is characterized in that, described movable die shoe side connecting power device, and it is for making described movable die shoe along described guide rail movement.
5. orientable pre-punched hole as claimed in claim 3 is without the diel of rivet constant temperature, it is characterized in that, described drift and described die shoe are respectively arranged with cooling fluid passage.
6. orientable pre-punched hole as claimed in claim 5 is without the diel of rivet constant temperature, it is characterized in that, arranges annular cooling fluid passage in described drift.
7. orientable pre-punched hole as claimed in claim 5 is without the diel of rivet constant temperature, it is characterized in that, described fixing die shoe and/or described movable die shoe upper end edge through hole are around arranging cooling fluid passage.
8. orientable pre-punched hole as claimed in claim 6 is without the diel of rivet constant temperature, it is characterized in that, the cooling fluid passage inside of described die shoe arranges memorial alloy deflection plate, it is arranged multiple through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053493.1U CN205200338U (en) | 2015-12-16 | 2015-12-16 | No rivet constant temperature stamping die that punches a hole in advance that can fix a position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053493.1U CN205200338U (en) | 2015-12-16 | 2015-12-16 | No rivet constant temperature stamping die that punches a hole in advance that can fix a position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205200338U true CN205200338U (en) | 2016-05-04 |
Family
ID=55838079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521053493.1U Expired - Fee Related CN205200338U (en) | 2015-12-16 | 2015-12-16 | No rivet constant temperature stamping die that punches a hole in advance that can fix a position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205200338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380765A (en) * | 2018-03-09 | 2018-08-10 | 吉林大学 | Carbon fibre composite is with aluminium alloy without rivet riveting device and method |
| CN112743891A (en) * | 2020-12-23 | 2021-05-04 | 无锡市欧凯电子有限公司 | Lower die servo node positive crank press system |
| CN113547015A (en) * | 2021-08-09 | 2021-10-26 | 许昌学院 | 5G communication accessory stamping device |
| CN114054611A (en) * | 2021-11-16 | 2022-02-18 | 燕山大学 | Method for enhancing rivet-free connection strength of steel-aluminum bimetallic sheet through oxidation treatment |
-
2015
- 2015-12-16 CN CN201521053493.1U patent/CN205200338U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380765A (en) * | 2018-03-09 | 2018-08-10 | 吉林大学 | Carbon fibre composite is with aluminium alloy without rivet riveting device and method |
| CN112743891A (en) * | 2020-12-23 | 2021-05-04 | 无锡市欧凯电子有限公司 | Lower die servo node positive crank press system |
| CN112743891B (en) * | 2020-12-23 | 2022-11-25 | 湖南大力科技咨询有限公司 | Lower die servo node positive crank press system |
| CN113547015A (en) * | 2021-08-09 | 2021-10-26 | 许昌学院 | 5G communication accessory stamping device |
| CN113547015B (en) * | 2021-08-09 | 2023-02-07 | 许昌学院 | 5G communication accessory stamping device |
| CN114054611A (en) * | 2021-11-16 | 2022-02-18 | 燕山大学 | Method for enhancing rivet-free connection strength of steel-aluminum bimetallic sheet through oxidation treatment |
| CN114054611B (en) * | 2021-11-16 | 2022-10-18 | 燕山大学 | Method for enhancing rivet-free connection strength of steel-aluminum bimetallic sheet through oxidation treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205200338U (en) | No rivet constant temperature stamping die that punches a hole in advance that can fix a position | |
| CN101181730A (en) | Drill pipe joint precision die forging process | |
| CN103600017B (en) | Between ultra-high strength steel plate or with the self-piercing riveting device of aluminium alloy plate | |
| CN100382911C (en) | Pressure variable edge force difference temperature drawing method for magnesium alloy plate | |
| CN105710256B (en) | A kind of manufacturing process of bullet train aluminum alloy wallboard | |
| CN104607557B (en) | The self-piercing riveting device of ultra-high strength steel plate and aluminium alloy plate | |
| CN208437592U (en) | Ring flange forging and molding mold | |
| US2789344A (en) | Method of cold shaping tubular steel articles and product | |
| CN107900234A (en) | A kind of slide block type cavity plate friction of lightweight plate is without riveting connection method | |
| CN105798538A (en) | Differential case extrusion and punching process | |
| CN105013908A (en) | Combination die and manufacturing technology for flanging short-section molding | |
| CN108500075A (en) | A kind of aluminium alloy flange disk heating tube hot type mold and its extrusion forming method | |
| CN105328045A (en) | Pre-hole-punching rivet-free constant-temperature stamping die capable of performing positioning and control method thereof | |
| CN110153363A (en) | A kind of manufacturing process for turning to the cold and hot forging of guide rod and combining | |
| CN106180257B (en) | Large plate list weld seam threeway forming process and forming device | |
| CN106424180A (en) | Extruding device and method for double-mouth and thick-wall pipe blank extrusion manufacturing | |
| CN103752668A (en) | Forming method of tee joint half-tube part and compound punching die | |
| CN106041415B (en) | A kind of hollow valve filled with sodium manufacturing process squeezing base | |
| CN202330190U (en) | Device for measuring plastic formation performance of magnesium alloy plate | |
| CN204504006U (en) | The self-piercing riveting device of ultra-high strength steel plate and aluminium alloy plate | |
| CN201659188U (en) | Sealing punch of internal high pressure forming tube end part | |
| CN110116170A (en) | A kind of expansion tube necking method | |
| CN101386035A (en) | Manufacturing technique of piston pin | |
| CN207402048U (en) | Composite bolt two pass time performing hot-heading forming mold | |
| CN106270100B (en) | Hydro piercing method for flanging and sectional type punching flanging device |
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: 20160504 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |