CN210098687U - Supplementary deep-drawing's side cut modulus of continuity - Google Patents

Abstract

The utility model belongs to the automobile lamp holder production field, it discloses a supplementary deep-drawing's side cut modulus of continuity, including the side cut portion and the tensile portion that are used for the blank shaping, the blank be equipped with be used for waiting that the tensile preset position surrounds first extension area, second extension area, third extension area, fourth extension area, the side cut portion still including be used for dashing out the first die of first extension area, be used for dashing out the second die of second extension area, be used for dashing out the third die of third extension area and fourth extension area; the problem of do not have the special-shaped terrace die that punches a plurality of special-shaped gaps, lead to the lateral wall metal mobility of car lighting fixture poor to can't stretch forming once is solved.

Description

Supplementary deep-drawing's side cut modulus of continuity

Technical Field

The utility model relates to an automobile lamp frame production field, especially a side cut modulus of continuity of supplementary deep-drawing.

Background

For vehicles, the lights are as important as the eyes of a person, and normal turning on or off is critical to whether the owner of the vehicle can safely drive the vehicle to the destination. The automobile lamp holder is an indispensable automobile part, and the automobile lamp is fixed on an automobile body to stably and normally work and play an important role.

At present, the automobile frame is made of two materials, namely a hardware-formed hardware part and a plastic-formed plastic part, and the plastic part is widely applied to low-end automobiles due to the factors of mature production process, simple process, easy forming, low production cost and the like relative to the hardware part. The plastic part easily deforms the plastic lamp holder due to high temperature of the headlamp to influence the light irradiation effect, and the requirement of middle and high-end automobiles on quality cannot be met. The cost of imported blanks is high, the quality of single-process production is easy to be poor, the zero defect of the requirement of automobile products cannot be met, the production efficiency is low, the manual manufacturing cost is relatively high, and the market demand cannot be met.

The automobile lamp holder needs to be stretched to the outer diameter of 84mm and the depth of 45.80mm, the requirement on metal flowability is extremely high due to the fact that the stretched outer diameter and the stretched depth are too large, general die forming can be completed only by shaping a stretching belt for more than 5 times, multi-step stretching is prone to product defects, one-step stretching forming cannot be achieved, and production efficiency is low.

Before the stock got into the stretching portion and was stretched, four sides of stock all punched out the breach, only left tortuous dysmorphism connecting strip on four angles, outer edge whole forms a tensile extension area, get into stretching portion after to the blank stretch, original connecting strip all is dragged, tortuous connecting strip is flare-outed gradually and is extended, is once stretch-formed at last, has improved metal mobility to the tensile extensibility performance of stock lateral wall is improved, and the smooth one shot stretch-forming of final stock improves production efficiency.

In the prior art, a punching and stretching progressive die for an automobile lamp holder does not exist, and a trimming die for punching a plurality of special-shaped notches on a blank is not available, so that when the product is stretched, the metal fluidity of the side wall of the product is poor, and the product cannot be stretched and formed at one time, so that the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a supplementary deep-drawing's side cut modulus of continuity solves the dysmorphism terrace die that does not dash out a plurality of special-shaped breachs, leads to the lateral wall metal mobility of automobile lamp frame poor to unable one-time stretch forming's problem.

The utility model provides a technical scheme does: an edge cutting continuous die assisting in deep drawing comprises an edge cutting part and a stretching part, wherein the edge cutting part is used for forming a blank, the blank is provided with a first extension belt, a second extension belt, a third extension belt and a fourth extension belt, the first extension belt, the second extension belt, the third extension belt and the fourth extension belt are used for surrounding a preset position to be stretched, and the first extension belt is arranged at four corners of the preset position; the first extension belt is formed by splicing two U-shaped grooves, and the second extension belt and the third extension belt respectively extend into the two corresponding U-shaped grooves; the fourth extension belt is communicated with the first extension belt; the second extension belt is communicated with the third extension belt; the third extension belt and the fourth extension belt are respectively provided with a boss facing the center of the blank, and the trimming part further comprises a first punching die for punching the first extension belt, a second punching die for punching the second extension belt and a third punching die for punching the third extension belt and the fourth extension belt.

In the trimming progressive die for auxiliary deep drawing, the first die is provided with two first openings with U-shaped cross sections, and the two first openings are respectively towards the feeding end and the discharging end.

In the trimming continuous die for auxiliary deep drawing, the discharge end of the second punching die is provided with a second opening matched with the first opening.

In the trimming continuous die for auxiliary deep drawing, the feed end of the third punching die is provided with a bend matched with the first opening, and the inner wall of the feed end of the third punching die and the inner walls of the two sides of the feed end of the third punching die are respectively provided with a boss which vertically faces the center of the blank.

In the trimming continuous die for auxiliary deep drawing, the third punching die is of a three-section surrounding structure, and the three-section surrounding structure is provided with an upper punching die, a middle punching die and a lower punching die; the upper section punching die and the lower section punching die are symmetrically arranged on two sides of the blank, and the middle section punching die is vertically arranged at the feeding ends of the upper section punching die and the lower section punching die and is positioned on the transverse central axis of the blank.

In the trimming continuous die for auxiliary deep drawing, the number of the first punching dies and the number of the second punching dies are two, and the first punching dies and the second punching dies are arranged in a mirror image mode by taking the transverse central axis of the blank as a symmetry axis.

In the trimming continuous die for auxiliary deep drawing, the first die, the second die and the third die are sequentially arranged from the feeding end, and the first die, the second die and the third die are arranged on the upper side of the workpiece.

In the trimming continuous die for auxiliary deep drawing, the trimming part is arranged at the feed end of the stretching part, and the trimming part is provided with a template structure which is independent from the stretching part and does not interfere with the stretching part.

In the trimming progressive die for auxiliary deep drawing, the template structure comprises an upper die base, an upper base plate, an upper clamping plate and a stripping plate which are arranged on an upper die, and a trimming concave template, a concave die base plate and a lower die base which are arranged on a lower die;

the upper die base, the upper backing plate, the upper clamping plate, the stripping plate, the trimming concave die plate, the concave die backing plate and the lower die base are sequentially arranged from top to bottom;

a plurality of guide columns, guide sleeves and springs for ejecting materials are arranged between the upper die holder and the stripping plate; and a plurality of guide columns, guide sleeves and springs for stripping materials are arranged between the trimming concave template and the lower die holder.

After the technical scheme is adopted in the utility model, its beneficial effect who has is:

in the scheme, the first punching die, the second punching die and the third punching die are matched with each other by arranging the openings and the bends on the first punching die, the second punching die and the third punching die to punch out a complete stretching extension belt; and a first opening on the first die is arranged, the cross section shape of the first die is controlled, and local special-shaped notches at the discharging end and the feeding end of the blank are punched.

The further improvement, this scheme is through setting up the second opening on the second die, and the cross sectional shape of control second die cooperates with the first opening towards the feed end on the first die, dashes out the border and the special-shaped connecting strip in middle part of billet discharge end.

In the scheme, the bending of the third stamping die is arranged to be matched with the first opening on the first stamping die, which faces to the discharge end, so that the edge of the blank feed end and the special-shaped connecting strip in the middle are stamped out; the boss is arranged, so that a notch is formed in the stretching extension belt of the blank, a deformed moving space is reserved, the resistance is low, the metal stretching flow direction is guided in an oriented mode, and the metal stretching flow is smooth.

Further improvement, the scheme avoids punching large-area special-shaped notches at one time by arranging the three-section surrounding structure of the third stamping die, reduces the occurrence of poor defects of warping, hole-shaped deformation, tearing of the blank and the like of the blank, replaces the large-area special-shaped notches with a plurality of small-area special-shaped notches, improves the production quality of products and reduces the reject ratio.

Further improvement, this scheme is through setting up independent and symmetrical arrangement in the both sides of stock of first die, second die, third die for a plurality of dies cooperate the stamping forming each other, but can not influence each other, have the die individually to take place wearing and tearing and need the repairment, only need only repair it, do not influence other dies, have the convenience.

Further improvement, this scheme is through setting gradually of first die, second die, third die for the dysmorphism hole shaping has higher quality on holistic tensile extension area, dashes out a plurality of special-shaped breachs because of needs, and the position of special-shaped breach has specific requirement, and the order that sets up of the die of cutting edge in this scheme of adoption dashes out high quality special-shaped breach, improves the yields.

The scheme is further improved, by arranging the distributed arrangement of the plurality of stamping dies instead of adopting the integrated arrangement of the stamping dies, when the blank is stamped with the notch in the early stage, the blank is not completely separated from the blank, only the notch is locally generated, and the blank is also connected with the blank, so that the feeding operation is convenient, and the practical use is realized; the special-shaped gap is punched in two steps, the gap located between the blank and the blank is punched firstly, then the rest gap and the gap located at the boundary are punched by taking the gap located at the boundary as a reference, the last boundary located position is punched, the blank is formed, the next process is started after the blank is formed, the blank is stretched, the overall stress of the blank is balanced in the punching process, the blank can be stably and continuously formed, the blank is prevented from being punched due to too many special-shaped holes, and the punching quality is improved.

Further improvement, this scheme is through setting up the combination of cut edge portion and tensile portion, constitutes the modulus of continuity of multistation, and the blank is punched into the stock that has tensile extension area, goes on sending next station immediately, does not need artifical relocation assembly, also accelerates production efficiency greatly when improving the product precision.

Further improvement, this scheme is through setting up other standard die carriers and parts for outside whole set of mould can normally work, use the assembly of standard die carrier, the convenient replacement of accessory of wearing and tearing reduces the customization accessory, reduces manufacturing cost, increase productivity effect.

Drawings

Fig. 1 is a schematic structural view of a first die according to embodiment 1 of the present invention;

fig. 2 is a perspective view of the structure of a second die according to embodiment 1 of the present invention;

fig. 3 is a perspective view of the third die according to embodiment 1 of the present invention;

fig. 4 is a front view of the form of embodiment 1 of the present invention;

fig. 5 is an exploded view of a trimming portion according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of the inside of a mold according to embodiment 1 of the present invention;

fig. 7 is an effect diagram of the blank molding according to embodiment 1 of the present invention.

Reference numerals: 1. a first opening; 2. a second opening; 3. an upper die holder; 4. removing the back plate; 5. a lower die holder; 6. an upper base plate; 7. an upper splint; 8. a first die; 9. a third die; 10. a second die; 11. trimming the female die; 12. a die base plate; 13. a fourth extensible belt; 14. a third extensible belt; 15. a first extensible belt; 16. second extension belt

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1: as shown in fig. 1 to 7, an edge trimming progressive die for auxiliary deep drawing comprises an edge trimming part for forming a blank and a stretching part, wherein the blank is provided with a first extension belt 15, a second extension belt 16, a third extension belt 14 and a fourth extension belt 13 for surrounding a preset position to be stretched, and the first extension belt 15 is arranged at four corners of the preset position; the first extension belt 15 is formed by splicing two U-shaped grooves, and the second extension belt 16 and the third extension belt 14 respectively extend into the two corresponding U-shaped grooves; the fourth extending belt 13 is communicated with the first extending belt 15; the second extension strip 16 and the third extension strip 14 are connected; the third extending belt 14 and the fourth extending belt 13 are respectively provided with a boss facing the center of the blank, and the trimming part further comprises a first punching die 8 for punching the first extending belt 15, a second punching die 10 for punching the second extending belt 16 and a third punching die 9 for punching the third extending belt 14 and the fourth extending belt 13.

The first die 8 is provided with two first openings 1 with U-shaped cross sections, and the two first openings 1 face the feeding end and the discharging end respectively.

Preferably, the openings and the bends on the first die 8, the second die 10 and the third die 9 are arranged, so that the first die 8, the second die 10 and the third die 9 are matched with each other, and a complete tensile extension strip is punched; the first opening 1 on the first die 8 is arranged, the shape of the cross section of the first die 8 is controlled, and local special-shaped notches at the discharging end and the feeding end of the blank are punched.

In practical application, a discharge end of the second die 10 is provided with a second opening 2 matched with the first opening 1; the cross section shape of the second punch die 10 is controlled to be matched with the first opening 1 on the first punch die 8 towards the feeding end, and the special-shaped connecting strip at the edge and the middle part of the blank discharging end is punched.

In this embodiment, the feed end of the third punch is provided with a bend matched with the first opening 1, and the inner wall of the feed end and the inner walls of the two sides of the third die 9 are respectively provided with a boss vertically facing the center of the workpiece.

Preferably, the bent third die 9 is matched with the first opening 1 facing the discharge end on the first die 8, so that the special-shaped connecting strip at the edge and the middle part of the blank feed end is punched; the boss is arranged, so that a notch is formed in the stretching extension belt of the blank, a deformed moving space is reserved, the resistance is low, the metal stretching flow direction is guided in an oriented mode, and the metal stretching flow is smooth.

In this embodiment, the third die 9 is a three-section surrounding structure, and the three-section surrounding structure is provided with an upper punch, a middle punch and a lower punch; the upper section punch and the lower section punch are symmetrically arranged on two sides of a workpiece, and the middle section punch is vertically arranged at the feeding ends of the upper section punch and the lower section punch and is positioned on the transverse central axis of the workpiece.

As further improvement, by arranging the three-section surrounding structure of the third stamping die 9, large-area special-shaped cuts are prevented from being stamped at one time, the occurrence of poor defects of warping, hole-shaped deformation, tearing of blanks and the like of the blanks is reduced, a plurality of small-area special-shaped cuts are adopted to replace the large-area special-shaped cuts, the production quality of products is improved, and the reject ratio is reduced.

In this embodiment, the first die 8 and the second die 10 are both provided with two dies, and are both arranged in a mirror image manner by taking the transverse central axis of the blank as a symmetry axis.

In the use process, the first punching die 8, the second punching die 10 and the third punching die 9 are independently and symmetrically arranged on two sides of the blank, so that the plurality of punching heads are matched with one another to punch and form in a cooperation mode, the mutual influence is avoided, the individual punching heads are abraded and need to be repaired, only the repairing is needed, other punching heads are not influenced, and the convenience is achieved.

In this embodiment, the first die 8, the second die 10, and the third die 9 are sequentially disposed from the feeding end, and the first die 8, the second die 10, and the third die 9 are disposed on the upper side of the workpiece.

Preferably, through setting gradually of first die 8, second die 10, third die 9 for the dysmorphism hole shaping has higher quality on holistic tensile extension area, dashes out a plurality of special-shaped breachs because of needs, and the position of special-shaped breach has specific requirement, and the order of setting up of the side cut die in this scheme of adoption dashes out high quality special-shaped breach, improves the yields.

As a further improvement of the embodiment, the edge cutting part is arranged at the feeding end of the stretching part, and the edge cutting part is provided with a template structure which is independent from the stretching part and does not interfere with the stretching part; through the combination of the edge cutting part and the stretching part, a multi-station progressive die is formed, a blank is punched into a blank with a stretching extension belt, and the blank is sent to the next station, so that manual repositioning and assembling are not needed, and the production efficiency is greatly accelerated while the product precision is improved.

In this embodiment, the template structure includes an upper die base 3, an upper backing plate 6, an upper clamp plate 7, a stripper plate 4, and a trimming die 11 plate, a die backing plate 12, and a lower die base 5, which are disposed on the upper die;

the upper die base 3, the upper backing plate 6, the upper clamping plate 7, the stripping plate 4, the trimming female die 11 plate, the female die backing plate 12 and the lower die base 5 are sequentially arranged from top to bottom;

a plurality of guide columns, guide sleeves and springs for ejecting materials are arranged between the upper die base 3 and the stripping plate 4; a plurality of guide columns, guide sleeves and springs for stripping materials are arranged between the trimming female die 11 and the lower die holder 5.

Its aim at through setting up other standard die carriers and part for outside whole set of mould can normally work, use the assembly of standard die carrier, the convenient replacement of accessory of wearing and tearing reduces the customization accessory, reduces manufacturing cost, increases the productivity effect.

In addition, an outer guide post and a guide post are arranged between the upper die base 3 and the lower die base 5, and a large number of positioning thimbles and ascending sleeves are also arranged on the die plate, so that the die precision is improved.

As shown in fig. 5-6, other common standard components such as part of the spring, the guide pillar, the guide sleeve, etc. are not completed, and all the standard components are listed, and the placement of the standard components is not identified, but all the above are common technical means, and the completeness and the feasibility of the technical scheme to be expressed by the embodiment are not affected.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (9)

1. An edge cutting continuous die assisting in deep drawing comprises an edge cutting part and a stretching part, wherein the edge cutting part is used for forming a blank, the blank is provided with a first extension belt, a second extension belt, a third extension belt and a fourth extension belt, the first extension belt, the second extension belt, the third extension belt and the fourth extension belt are used for surrounding a preset position to be stretched, and the first extension belt is arranged at four corners of the preset position; the first extension belt is formed by splicing two U-shaped grooves, and the second extension belt and the third extension belt respectively extend into the two corresponding U-shaped grooves; the fourth extension belt is communicated with the first extension belt; the second extension belt is communicated with the third extension belt; the third extension belt and the fourth extension belt are respectively provided with a boss facing the center of the blank, and the trimming part is characterized by further comprising a first punching die for punching the first extension belt, a second punching die for punching the second extension belt and a third punching die for punching the third extension belt and the fourth extension belt.

2. The deep drawing assisted trimming progressive die according to claim 1 wherein the first die is provided with two first openings having a U-shaped cross section, the two first openings being directed towards the feed end and the discharge end, respectively.

3. The deep drawing assisted trimming progressive die according to claim 1 or 2, wherein the discharge end of the second die is provided with a second opening cooperating with the first opening.

4. The deep drawing assisted trimming progressive die according to claim 1 or 2, wherein the feed end of the third punch is provided with a bend matching with the first opening, and the inner wall of the feed end of the third punch and the inner walls of the two sides of the feed end of the third punch are respectively provided with a boss vertically facing the center of the blank.

5. The trim progressive die for deep drawing assistance according to claim 4 wherein the third punch is a three-segment enclosure having an upper punch, a middle punch, and a lower punch; the upper section punching die and the lower section punching die are symmetrically arranged on two sides of the blank, and the middle section punching die is vertically arranged at the feeding ends of the upper section punching die and the lower section punching die and is positioned on the transverse central axis of the blank.

6. The trimming progressive die for auxiliary deep drawing according to claim 1, wherein the first die and the second die are provided in two and are arranged in a mirror image manner by taking a transverse middle axis of the blank as a symmetry axis.

7. The trimming progressive die for auxiliary deep drawing according to claim 1, wherein the first die, the second die and the third die are arranged in sequence from a feeding end, and the first die, the second die and the third die are arranged on the upper side of the blank.

8. The trim continuous die for assisted deep drawing according to claim 1, wherein the trim portion is provided at a feed end of the drawing portion, the trim portion being provided with a die plate structure independent of the drawing portion and not interfering therewith.

9. The trimming progressive die for auxiliary deep drawing according to claim 8, wherein the die plate structure comprises an upper die base, an upper backing plate, an upper clamping plate and a stripping plate which are arranged on an upper die, and a trimming concave die plate, a concave die backing plate and a lower die base which are arranged on a lower die;

the upper die base, the upper backing plate, the upper clamping plate, the stripping plate, the trimming concave die plate, the concave die backing plate and the lower die base are sequentially arranged from top to bottom;

a plurality of guide columns, guide sleeves and springs for ejecting materials are arranged between the upper die holder and the stripping plate; and a plurality of guide columns, guide sleeves and springs for stripping materials are arranged between the trimming concave template and the lower die holder.

Images