CN114433743A - Wheel cover convex part stamping die and wheel cover convex part stamping method - Google Patents
Wheel cover convex part stamping die and wheel cover convex part stamping method Download PDFInfo
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- CN114433743A CN114433743A CN202011231895.1A CN202011231895A CN114433743A CN 114433743 A CN114433743 A CN 114433743A CN 202011231895 A CN202011231895 A CN 202011231895A CN 114433743 A CN114433743 A CN 114433743A
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- wheel cover
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004080 punching Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/32—Making other particular articles wheels or the like wheel covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a wheel cover convex part stamping die and a wheel cover convex part stamping method. The wheel cover convex part stamping die comprises an upper die assembly and a lower die assembly, wherein a blank placing position is arranged on the lower die assembly and used for positioning and placing an arc-shaped blank; the blank placing positions are provided with two positions which are oppositely arranged so that the arc-shaped blank can be placed in a mode that the openings are opposite, or the two blank placing positions are oppositely arranged so that the arc-shaped blank can be placed in a mode that the openings are opposite. Two blank placing positions used for placing arc-shaped blanks are arranged on the lower die assembly, the arc-shaped blanks are symmetrically placed in a mode that the openings are opposite or the openings are opposite, when the stamping die for the raised parts of the wheel cover performs stamping action, the two arc-shaped blanks are stamped simultaneously, the lower die assembly can be enabled to bear force along the horizontal direction in a balanced manner, and therefore dislocation of the lower die assembly relative to the upper die assembly is avoided, and the processing quality of the raised parts of the wheel cover is guaranteed.
Description
Technical Field
The invention relates to a wheel cover convex part stamping die and a wheel cover convex part stamping method.
Background
Wheel covers are important members of automobiles, and are used for preventing splash, rain, flying stones and the like generated during the operation of wheels from entering an engine compartment and an automobile body. More and more wheel covers are no longer planar but have raised structures near the wheel for aesthetic and strength enhancement.
The wheel cover comprises a convex part and a flat plate part positioned on the outer side of the convex part, and in the prior art, an arc-shaped blank is punched through a wheel cover convex part punching die to form the convex part with a convex structure, and then the convex part and the flat plate part are welded in a split welding manner to form the complete wheel cover. The curved blank before forming is an annular plate, and the convex part after forming is shown in figure 1 (the middle part of the figure is in a cross-sectional shape). The stamping die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly is fixed at the output end of the press, and the lower die assembly is fixed on a workbench of the press in a bolt and slot hole matched mode. In the stamping process, the upper die assembly and the lower die assembly extrude the arc-shaped blank together to a preset shape, and in the stamping process, the stamping die assembly receives the horizontal reaction force of the blank.
The wheel casing is formed through one-step forming processing usually in the prior art, because the arc blank is in a side opening form, the stress of a stamping die along the horizontal direction is unbalanced due to the form, a lower die assembly in the stamping die is usually fixed to a workbench of a press in a bolt and long hole matched form, and when the lower die assembly receives large unbalanced acting force in the horizontal direction, the lower die assembly can displace relative to the workbench of the press, so that the lower die assembly and an upper die assembly are staggered to influence the processing quality of the wheel casing.
Disclosure of Invention
The invention aims to provide a wheel cover convex part stamping die, which aims to solve the problems that the wheel cover convex part stamping die in the prior art is unevenly stressed in the stamping process and the processing quality of a wheel cover is influenced; the invention further aims to provide a method for stamping the raised part of the wheel cover, so as to solve the problem that the processing quality of the wheel cover is affected due to uneven stress in the stamping process of the method for stamping the raised part of the wheel cover in the prior art.
In order to achieve the purpose, the technical scheme of the stamping die for the raised part of the wheel cover is as follows:
the wheel cover bulge part stamping die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are used for stamping the arc-shaped blank into a bulge;
a blank placing position is arranged on the lower die assembly and used for positioning and placing the arc-shaped blank;
the blank placing positions are provided with two positions, the two blank placing positions are arranged oppositely to enable the arc-shaped blanks to be placed in a mode that the openings are opposite, or the two blank placing positions are arranged oppositely to enable the arc-shaped blanks to be placed in a mode that the openings are opposite to each other.
The stamping die for the raised part of the wheel cover has the beneficial effects that: have two blanks that are used for placing the arc blank on the lower module and place the position, supply the arc blank to place with the opening is relative or the form symmetry that the opening carried on the back mutually, when wheel casing protruding position stamping die carries out the punching press action, carry out the punching press to two arc blanks simultaneously, can make lower module balanced at the atress of horizontal direction, when avoiding last module to carry out the punching press to the blank, the blank leads to lower module to produce the displacement for the workstation to the reaction force of lower module, thereby it misplaces to have avoided last module and lower module, do benefit to the processingquality who guarantees the protruding position of wheel casing.
Furthermore, the lower die assembly comprises a female die, two blank placing positions are used for symmetrically placing two arc-shaped blanks in a mode that openings are opposite, and a cavity of the female die is formed by an annular cavity which is communicated along the circumferential direction.
The die has the beneficial effect that the die is convenient to process.
Furthermore, the upper die assembly comprises a male die, an annular stamping bulge is arranged on the male die and used for stamping the arc-shaped blank, and the annular stamping bulge is sealed along the circumferential direction.
The punch has the beneficial effect that the punch is convenient to process.
Further, the upper die assembly comprises a punch base plate, and the annular stamping protrusion is integrally formed on the punch base plate.
The punch has the beneficial effects that the punch and the punch bottom plate are of an integrated structure, so that the punch has higher strength.
Furthermore, the lower die assembly comprises an inner die, an outer die and a stripper plate, the stripper plate is an annular plate arranged between the inner die and the outer die, and a cavity of the female die is positioned between the inner die and the outer die;
the bottom of the stripper plate is provided with a bottom step, the inner side surface of the outer die is provided with an annular step, the annular step forms a movable space, and the movable space is used for the stripper plate to move up and down;
the top surface of the annular step blocks the bottom step of the stripper plate to prevent the stripper plate from being separated upwards.
The bottom step is blocked by the annular step, so that the arc-shaped blank can be conveniently placed on the blank placing position.
Further, the overall shape of the two blank placing positions is matched with the shape of the two arc-shaped blanks in the involution state.
The mould has the beneficial effects that the mould is beneficial to reducing the volume of the mould, and the phenomenon that the whole volume of the mould is overlarge due to the fact that two blank placing positions are arranged at the same time is avoided.
Furthermore, the upper die assembly also comprises a press connecting plate, an upper die base plate and a middle supporting plate;
a press attachment plate for attachment to a press;
the upper die base plate is fixedly connected with the male die;
the middle supporting plate is vertically connected between the press connecting plate and the upper die base plate, and the middle supporting plate is uniformly arranged in the horizontal direction.
The upper die assembly has the advantages that the upper die assembly is light in weight and convenient to mount, and the male die can be stressed uniformly.
Further, a material pressing plate is arranged on the upper die assembly, corresponds to the outer die and is assembled on the upper die base plate in a guiding mode along the vertical direction;
an elastic piece is arranged between the pressure plate and the upper die base plate, and the pressure plate is a square pressure plate with a long round hole in the middle.
The semi-annular pressure plate has the advantages that the pressure plate is a square pressure plate with the long round hole in the middle, the semi-annular pressure plate is convenient to assemble relative to a semi-annular pressure plate or a plurality of pressure plates are circumferentially distributed, and the pressure plates are located in one plane and are beneficial to reliable edge pressing.
Furthermore, a guide hole is formed in the upper die base plate, an equal-height sleeve matched with the guide hole is arranged on the top surface of the pressure plate, and the equal-height sleeve is tightly pressed and fixed on the top surface of the pressure plate through a screw penetrating through the equal-height sleeve;
the equal-height sleeves are uniformly distributed along the circumferential direction, and the heights of the equal-height sleeves are the same;
the top of the equal-height sleeve is provided with an outward turning edge, and the bottom surface of the outward turning edge is in stop fit with the top surface of the upper die base plate.
The pressure plate has the advantages that the arrangement of the equal-height sleeve and the outward turning edge of the equal-height sleeve can guide the movement of the pressure plate, prevent the pressure plate from deflecting and ensure that the pressure plate is in a horizontal plane.
The technical scheme of the method for stamping the raised part of the wheel cover is as follows: set up the blank of two symmetries on wheel casing protruding position stamping die's lower mould subassembly and place the position, two blanks are placed the position and are supplied two arc blanks to place with the form that the opening is relative or carried on the back mutually to two arc blanks of simultaneous molding in wheel casing protruding position stamping die's a punching press.
The method for stamping the raised part of the wheel cover has the beneficial effects that: have two blanks that are used for placing the arc blank on the lower mould subassembly and place the position, supply the arc blank to place with the relative or opening form symmetry that carries on the back mutually of opening, when wheel casing protruding position stamping die carries out the punching press action, carry out the punching press to two arc blanks simultaneously, can make lower mould subassembly atress at the horizontal direction balanced, when avoiding last mould subassembly to carry out the punching press to the blank, the blank leads to lower mould subassembly to produce the displacement for the workstation to the reaction force of lower mould subassembly, thereby it misplaces to have avoided last mould subassembly and lower mould subassembly, do benefit to the processingquality who guarantees the protruding position of wheel casing.
Drawings
FIG. 1 is a schematic view of a raised portion of a wheel cover;
FIG. 2 is a schematic structural view of a wheel cover raised area stamping die according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the upper mold assembly of FIG. 2;
FIG. 4 is a schematic view of the lower die assembly of FIG. 2;
FIG. 5 is a schematic view of the annular stripper plate of FIG. 1;
FIG. 6 is a schematic structural view of the outer mold of FIG. 1;
FIG. 7 is an enlarged view taken at A in FIG. 2;
in the figure: 1. an upper die press connecting plate, 2, a sealing plate, 3, a middle supporting plate, 4, an upper die base plate, 5, a male die base plate, 6, a high-strength adhesive pressing plate, 7, a high-strength adhesive column, 8, an upper lifting lug, 9, an annular pressing plate, 10, a positioning guide column, 11, an annular punching bulge, 12, a groove, 13, a guide column avoiding hole, 14, a lower die base, 15, an outer die, 151, an annular step, 16, a stripper plate, 161, an annular upper end surface, 162, a bottom step, 17, an inner die, 171, an annular concave part, 18, a lower lifting lug, 19, a guide rod through hole, 20, a positioning hole, 21, a connecting bolt, 22, an equal-height sleeve, 221, an outward-turning edge, 23, a movable space, 24, a bulge, 241 and a bulge structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The following describes embodiments of the present invention with reference to the drawings.
The specific embodiment of the wheel cover convex part stamping die comprises an upper die assembly and a lower die assembly, as shown in fig. 1 and 2, the upper die assembly comprises an upper die press connecting plate 1 positioned at the upper part, the upper die press connecting plate 1 is used for being fixedly connected with the output end of a press to drive the upper die assembly to move up and down, the upper die press connecting plate 1 is fixedly connected with an upper die base plate 4 through a middle supporting plate 3 and a sealing plate 2 perpendicular to the middle supporting plate 3, and the middle supporting plate 3 is vertically arranged and fixedly connected with the upper die press connecting plate 1 and the upper die base plate 4 through connecting bolts. Shrouding 2 has two, and the face of perpendicular to intermediate support plate 3 lies in intermediate support plate 3's both sides on the horizontal direction, and shrouding 2 fixed connection makes through shrouding 2 and intermediate support plate 3 to go up the die pad 4 atress equilibrium on intermediate support plate 3.
Go up mould backing plate 4 below through fixing bolt fixedly connected with terrace die bottom plate 5, the middle part of terrace die bottom plate 5 is equipped with recess 12, and the position that terrace die bottom plate 5 is located the recess 12 outside is protruding 11 for annular punching press, is equipped with the counter bore on the protruding 11 of annular punching press for with last mould backing plate 4 fixed connection's fixing bolt setting in the counter bore, in order to avoid fixing bolt to produce the influence to the die mould of arc blank.
An elastic jacking part is arranged on the outer side of the male die base plate 5 on the upper die base plate 4 and comprises a high-strength rubber column 7 and an annular pressure plate 9, accommodating through holes are uniformly formed in the upper die base plate 4 around the male die base plate 5 in the circumferential direction, one end, far away from the male die base plate 5, of each accommodating through hole is covered with a high-strength rubber pressure plate 6, the high-strength rubber pressure plates 6 and the accommodating through holes enclose a high-strength rubber accommodating groove for accommodating the high-strength rubber column 7, and the lower plate of the high-strength rubber pressure plates 6 is blocked in the face of the high-strength rubber column 7 to form a reference surface for elastic deformation of the high-strength rubber column 7. The annular pressure plate 9 is used for pressing the arc-shaped blank onto the top surface of the outer die 15 before the stamping action of the stamping die at the raised part of the wheel cover is performed, and when the high-strength rubber column 7 performs the stamping action of the stamping die at the raised part of the wheel cover, the interference of the annular pressure plate 9 on the stamping action of the stamping die at the raised part of the wheel cover is avoided while the annular pressure plate 9 presses the arc-shaped blank.
As shown in fig. 7, the annular pressure plate 9 is assembled to the upper die backing plate 4 by guiding the connecting bolts 21, the connecting bolts 21 are fixed to the top surface of the annular pressure plate 9, and the upper die backing plate 4 is provided with bolt through holes for the screws of the connecting bolts 21 to pass through. The screw rod of the connecting bolt 21 is sleeved with the equal-height sleeve 22, the top of the equal-height sleeve 22 is provided with an outward turning edge 221, the top surface of the outward turning edge 221 abuts against the bolt head of the connecting bolt 21, and the bottom surface of the outward turning edge 221 and the hole edge of the bolt through hole are blocked; the bottom surface of the equal-height sleeve 22 is abutted against the upper plate surface of the annular pressure plate 9. In this embodiment, the outer contour of the everting edge 221 is a regular quadrangle for easy processing, and in other embodiments, the outer contour of the everting edge 221 may be other shapes, such as a circle. For another example, instead of the outwardly turned edge 221, stop protrusions are provided on the outer peripheral surface of the top of the equal-height sleeve 22 at intervals. As another example, latches disposed radially of the contoured sleeve 22 are used in place of the function of the upturned lip 221.
As shown in fig. 3 and 4, the lower die assembly includes a lower die base 14 located at the lower portion, and the lower die base 14 is used for being fixedly connected with a workbench of the press. An inner die 17 is arranged on the lower die holder 14, and the inner die 17 corresponds to the groove 12 of the punch bottom plate 5. The inner die 17 is provided with a counter bore, and the inner die 17 is fixedly connected with the lower die holder 14 through a fixing bolt in the counter bore.
As shown in fig. 5, a stripper plate 16 is arranged on the lower die assembly at the outer side of the inner die 17, and the stripper plate 16 is a square pressure plate with a long round hole in the middle. The stripper plate 16 is positioned to correspond to the annular punch protrusion 11, and the stripper plate 16 has an annular upper end surface 161 for cooperating with the annular press-fitting protrusion 11 to clamp the wheel cover. A guide rod through hole 19 is formed in the lower die base 14 at a position corresponding to the stripper plate 16, a press guide rod on a press penetrates through the guide rod through hole 19, and the stripper plate 16 moves up and down through the press guide rod.
An annular outer die 15 is arranged on the outer side of the stripper plate 16, a counter bore is arranged on the outer die 15, and the outer die is fixedly connected with the lower die holder 14 through a bolt in the counter bore. The outer die 15 corresponds to the annular pressure plate 9 in position so as to be matched with the annular pressure plate 9 to clamp the outer edge of the arc-shaped blank together in the profiling process and prevent the edge of the wheel cover from being shrunk and wrinkled.
As shown in fig. 6, the top of one side of the outer mold 15 close to the inner mold 17 is provided with an annular step 151, and the step of the annular step 151 faces downward. The bottom of the stripper plate 16 is provided with a bottom step 162, a movable space 23 is formed between the annular step 151 and the lower die holder 14, the stripper plate 16 is movably arranged up and down, and the top surface (i.e. the step surface) of the annular step 151 stops the bottom step 162 to prevent the stripper plate 16 from being pulled out upwards.
The inner die 17 is higher than the outer die 15, an annular concave part 171 is arranged at the outer edge of the inner die 17, the top surface of the annular concave part 171 is on the same horizontal plane with the top surface of the outer die 15, and the top surface of the annular concave part 171 and part of the top surface of the outer die form a blank placing position for placing an arc-shaped blank. The two blank placing positions are used for placing the two arc-shaped blanks in an involution mode with opposite openings, and the overall contour of the annular stamping bulge 11 and the female die is matched with the shapes of the involution two arc-shaped blanks. The portion of the inner die 17 inside the annular recess 171 forms a positioning protrusion that blocks the arc-shaped blank in the radial direction of the arc-shaped blank to position the arc-shaped blank in the blank placing position.
The annular concave portion 171, the outer die and the stripper plate 16 together form a female die, the outer side surface of the annular concave portion 171, the top surface of the stripper plate 16 and the inner side surface of the outer die together enclose a cavity of the female die, and the cavity of the female die is an annular cavity which penetrates along the circumferential direction and is matched with the annular stamping bulge 11 in shape, so that a semi-annular bulge corresponding to the half edge of the annular stamping bulge 11 is formed on the arc-shaped blank.
The upper die base plate 4 is provided with a positioning guide pillar 10, the annular pressure plate 9 is provided with a guide pillar avoiding hole 13 for avoiding the positioning guide pillar 10, the outer die 15 is provided with a positioning hole 20 for being matched with the positioning guide pillar 10, and the positioning guide pillar 10 can guide the relative movement of the annular pressure plate 9 and the upper die base plate 4 and the relative movement of the upper die assembly and the lower die assembly. And the upper die assembly and the lower die assembly are respectively provided with an upper lifting lug 8 and a lower lifting lug 18 for transportation in a hoisting mode.
The use process of the die of the invention is as follows: the upper die assembly and the lower die assembly are firstly placed on a workbench of a press in a fitting state, then the lower die holder 14 is fixedly connected with the workbench of the press, the upper die press connecting plate 1 is fixedly connected with a driving slide block of the press, and the stroke and the closing height of the press are adjusted to fixed values. The press is controlled to drive the upper die assembly to ascend, the stripper plate 16 is pushed to ascend to the upper end of the movable space under the action of a guide post of the press, two arc-shaped blanks are positioned and placed on the blank placing position, the press slide block is controlled to fall and be pressurized, the annular pressing plate 9 and the outer die 15 clamp the arc-shaped blanks tightly, and the annular punching bulge 11 and the annular upper end surface 161 of the stripper plate 16 clamp the arc-shaped blanks tightly. The slide block of the press continuously falls, the rubber column 7 elastically deforms to enable the annular pressure plate 9 to move upwards to avoid the outer die 15, the stripper plate 16 moves downwards in the moving space to avoid the annular stamping bulge 11 until the annular pressure plate 9 is attached to the upper die base plate 4, and the stamping action of the stamping die at the raised part of the wheel cover is completed. And controlling the driving slide block to ascend, and simultaneously pushing the stripper plate 16 to ascend through a press guide rod so as to eject the wheel cover from the lower die assembly, thereby finishing the processing of the convex part of the wheel cover. As a conventional structure of the press, a hydraulic cushion is arranged below a workbench of the press, a hydraulic cylinder is arranged in the hydraulic cushion and is used for jacking a lifting platform, and the lifting platform is used for lifting a guide rod of the press; the pneumatic cylinder is set up to automatic pressure release or manual pressure release, accomplishes the punching press back of work piece, and the pressure release is filled up to the press hydraulic pressure, drives and lifts the platform whereabouts, and the press guide arm loses the lifting action that lifts the platform, along with lifting the platform whereabouts for material returned 16 also can realize the whereabouts.
In this embodiment, two blank places the position and supplies two arc blanks to put with the form that the opening is relative involutory, and the die cavity and the terrace die of die are holistic annular structure this moment, and in other embodiments, can adopt other forms, for example, two blank places the position and supplies two arc blanks to put with the form symmetry that the opening carried on the back mutually. For another example, the two blank placing positions are used for symmetrically placing the two arc-shaped blanks in a form with opposite and spaced openings, at this time, the cavity of the female die can be formed by an annular structure which is communicated along the circumferential direction, or can be formed by two U-shaped structures which are arranged in a split manner, when the female die is in a split manner, the male die must be arranged in a split manner corresponding to the female die, and when the female die is in an integral manner, the male die can be in an integral manner, or in a split manner.
In this embodiment, the intermediate support plate and the closing plate are used to transfer force from the press attachment plate to the upper die plate, but in other embodiments, other forms may be used, such as an intermediate support post.
In this embodiment, the material pressing plate is in an integral form, and in other embodiments, the material pressing plate may be in other forms, for example, two half rings corresponding to the two blank placing positions, respectively.
In other embodiments, a die adapted to the shape of the wheel cover may be used to place the completed wheel cover blank on a blank placement station and the completed wheel cover may be formed by a stamping operation.
According to the specific embodiment of the wheel cover convex part stamping method, the lower die assembly of the wheel cover convex part stamping die is provided with two symmetrical blank placing positions, and the two blank placing positions are used for placing two arc-shaped blanks in a mode that openings are opposite or back to each other, so that the wheel cover convex part stamping die can stamp the two arc-shaped blanks at one time to form the two arc-shaped blanks.
Claims (10)
1. The wheel cover bulge part stamping die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are used for stamping the arc-shaped blank into a bulge;
a blank placing position is arranged on the lower die assembly and used for positioning and placing the arc-shaped blank;
the method is characterized in that:
the blank placing positions are provided with two positions, the two blank placing positions are arranged in opposite directions to enable the arc-shaped blank to be placed in a mode that the openings are opposite, or the two blank placing positions are arranged in opposite directions to enable the arc-shaped blank to be placed in an opposite mode that the openings are opposite.
2. The wheel cover raised portion punching die according to claim 1, characterized in that: the lower die assembly comprises a female die, two blank placing positions are used for symmetrically placing two arc-shaped blanks in a mode that openings are opposite, and a cavity of the female die is formed by an annular cavity which is communicated along the circumferential direction.
3. The wheel cover raised portion punching die according to claim 2, characterized in that: the upper die assembly comprises a male die, an annular stamping bulge is arranged on the male die and used for stamping the arc-shaped blank, and the annular stamping bulge is sealed along the circumferential direction.
4. The wheel cover raised portion punching die according to claim 3, characterized in that: the upper die assembly comprises a male die base plate, and the annular stamping protrusions are integrally formed on the male die base plate.
5. The wheel house raised portion punching die according to claim 2, 3 or 4, characterized in that: the lower die assembly comprises an inner die, an outer die and a stripper plate, the stripper plate is an annular plate arranged between the inner die and the outer die, and a cavity of the female die is positioned between the inner die and the outer die;
the bottom of the stripper plate is provided with a bottom step, the inner side surface of the outer die is provided with an annular step, the annular step forms a movable space, and the movable space is used for the stripper plate to move up and down;
the top surface of the annular step blocks the bottom step of the stripper plate to prevent the stripper plate from being separated upwards.
6. The wheel house raised portion punching die according to claim 2, 3 or 4, characterized in that: the overall shape of the two blank placing positions is matched with the shape of the two arc-shaped blanks in the involutory state.
7. The wheel house raised portion punching die according to any one of claims 1 to 4, characterized in that: the upper die assembly further comprises a press connecting plate, an upper die base plate and a middle supporting plate;
a press attachment plate for attachment to a press;
the upper die base plate is fixedly connected with the male die;
the middle supporting plate is vertically connected between the press connecting plate and the upper die base plate, and the middle supporting plate is uniformly arranged in the horizontal direction.
8. The wheel cover raised portion punching die according to claim 7, characterized in that: the upper die assembly is provided with a material pressing plate, the material pressing plate corresponds to the outer die and is assembled on the upper die base plate in a guiding manner along the vertical direction;
an elastic piece is arranged between the pressure plate and the upper die base plate, and the pressure plate is a square pressure plate with a long round hole in the middle.
9. The wheel cover raised portion punching die according to claim 8, characterized in that: the upper die base plate is provided with a guide hole, the top surface of the pressure plate is provided with an equal-height sleeve matched with the guide hole, and the equal-height sleeve is tightly pressed and fixed on the top surface of the pressure plate through a screw penetrating through the equal-height sleeve;
the equal-height sleeves are uniformly distributed along the circumferential direction, and the heights of the equal-height sleeves are the same;
the top of the equal-height sleeve is provided with an outward turning edge, and the bottom surface of the outward turning edge is in stop fit with the top surface of the upper die base plate.
10. The stamping method for the raised part of the wheel cover is characterized in that: set up the blank of two symmetries on wheel casing protruding position stamping die's lower mould subassembly and place the position, two blanks are placed the position and are supplied two arc blanks to place with the form that the opening is relative or carried on the back mutually to two arc blanks of simultaneous molding in wheel casing protruding position stamping die's a punching press.
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| CN202011231895.1A CN114433743A (en) | 2020-11-06 | 2020-11-06 | Wheel cover convex part stamping die and wheel cover convex part stamping method |
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| CN202011231895.1A CN114433743A (en) | 2020-11-06 | 2020-11-06 | Wheel cover convex part stamping die and wheel cover convex part stamping method |
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| CN114433743A true CN114433743A (en) | 2022-05-06 |
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| JPH07275965A (en) * | 1994-04-01 | 1995-10-24 | Toyota Motor Corp | Manufacture of panel material having hole |
| CN105618576A (en) * | 2014-10-31 | 2016-06-01 | 芜湖福祥模具科技有限公司 | Drawing die for automobile fenders |
| CN106807832A (en) * | 2016-12-31 | 2017-06-09 | 高密市豪沃机械科技有限公司 | A kind of Car Wheel Cover Strengthening Sheet outside plate Sheet Metal Forming Technology |
| CN207357939U (en) * | 2017-10-11 | 2018-05-15 | 合肥常青机械股份有限公司 | A kind of auto parts and components precision cold extrusion is punched integration mold |
| CN108704987A (en) * | 2018-08-06 | 2018-10-26 | 安徽新悦精密机械有限公司 | A kind of mold of edge rolling punch forming process |
| CN210310207U (en) * | 2019-06-20 | 2020-04-14 | 湖州泰和汽车零部件有限公司 | Automobile wheel arch convenient to install |
| CN214417461U (en) * | 2020-11-06 | 2021-10-19 | 河南森源重工有限公司 | Arc-shaped workpiece stamping die |
| CN114433727A (en) * | 2020-11-06 | 2022-05-06 | 河南森源重工有限公司 | Wheel cover and method for manufacturing wheel cover |
-
2020
- 2020-11-06 CN CN202011231895.1A patent/CN114433743A/en active Pending
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| CN108704987A (en) * | 2018-08-06 | 2018-10-26 | 安徽新悦精密机械有限公司 | A kind of mold of edge rolling punch forming process |
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