CN216757865U - Spherical surface shallow-stretching product mold structure - Google Patents

Abstract

The utility model relates to the field of machining, in particular to a mold structure for spherical shallow-stretching products. The mould structure comprises an upper mould structure and a lower mould structure; the discharging thimble can be positioned in the discharging thimble through hole (6), a spring (15) is nested outside the discharging thimble (14), the spring (15) is positioned in the part with the larger diameter of the discharging thimble through hole (6), the lower part of the upper die main body comprises an arc-shaped quasi-spherical surface (4), the upper die main body comprises a magnet mounting hole (5), a magnet is mounted in the magnet mounting hole (5), and the upper die main body comprises a knockout ring sinking groove (7); the lower die structure comprises a lower forming die main body (11), the lower die structure comprises screw fixing holes (12), the lower die structure comprises a lower curved surface (9), the edge side of the lower curved surface (9) comprises a lower die part cutting edge (8), and the edge side of the lower die structure comprises a lower cutting part (10); the curved surfaces of the sphere-like surface (4) and the lower curved surface (9) can be matched.

Description

Spherical surface shallow-stretching product mold structure

Technical Field

The utility model relates to the field of machining, in particular to a mold structure for spherical shallow-stretching products.

Background

There are two production modes for similar products

1. Single-process mode production: the technological process includes punching plate material, pressing pit and pits, and drawing to form spherical surface

2. Continuous die production: through special continuous die, adopt conventional product stock layout mode, need on the periphery of blank external diameter, the technology breach when blanking out tensile, the material flow when being convenient for the product shaping is tensile to reach the intensity and the positioning accuracy in material area.

The technical defects of the prior scheme 1 are as follows:

1. the product process is various;

2. the product production line is long, and the production period is long;

3. single-punch production, the production rhythm is slow;

4. the labor cost and the occupied cost of the machine equipment are high;

5. the labor intensity of workers is high;

the technical defects of the prior scheme 2 are as follows:

1. the process blanking is necessary, so that the single product consumes more materials;

2. the material flow is unstable, and the positioning precision of the material belt is influenced;

3. the material at the lap is easy to break or the strength is too strong to influence the subsequent stretching effect;

4. the requirement on the lubrication of the die is strict;

5. the number of die parts is large, and the die cost is high;

6. the product cannot be designed in multiple rows because of the non-uniformity of material flow and interference between adjacent products when the multiple rows are designed;

7. the product appearance is easy to have edge polishing, which affects the product quality and appearance;

8. due to the stretching of the product, the material is deformed, the straightness changes, the feeding is not smooth easily in the production process, the problem of influencing the product quality is caused, the production efficiency is influenced, and the damage to the die is easily caused.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is that: in order to provide a mold structure for spherical shallow drawing products with better effect, the specific purpose is to find a plurality of substantial technical effects of the specific implementation part.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a mold structure for spherical shallow-stretching products is characterized in that the mold structure comprises an upper mold structure and a lower mold structure;

the upper die structure comprises an upper die main body, the middle part of the upper die main body comprises a fixing screw through hole 1, the upper die main body comprises more than one discharging thimble through hole 6, the diameter below the discharging thimble through hole 6 is smaller, the diameter above the discharging thimble through hole 6 is larger, a discharging thimble can be positioned in the discharging thimble through hole 6, a spring 15 is nested outside the discharging thimble 14, the spring 15 is positioned in the part with the larger diameter of the discharging thimble through hole 6, the lower part of the upper die main body comprises an arc-shaped sphere-like surface 4, the upper die main body comprises a magnet mounting hole 5, a magnet is arranged in the magnet mounting hole 5, and the upper die main body comprises a discharging ring sinking groove 7;

the lower die structure comprises a lower forming die main body 11, the lower die structure comprises a screw fixing hole 12, the lower die structure comprises a lower curved surface 9, the side of the lower curved surface 9 comprises a lower die part cutting edge 8, and the side of the lower die structure comprises a lower blanking part 10;

the curved surfaces of both the sphere-like surface 4 and the lower curved surface 9 can be fitted.

The utility model further adopts the technical scheme that a material beating ring is arranged in the material beating ring sinking groove 7.

The utility model further adopts the technical scheme that the material beating device also comprises a beating rod 19 which can beat the beating ring.

A further technical solution of the present invention is that the ball-like surface part 18 machined between the upper and lower die structures is iron.

The technical scheme of the utility model is that when the upper die structure is lifted upwards, the knockout rod can be moved to extrude the knockout ring.

The technical scheme is that the material beating rod comprises more than one level, a secondary material beating rod can directly extrude the material beating ring downwards, the secondary material beating rod is connected with the primary material beating rod through a plate, and the primary material beating rod is connected with a material beating plate 21.

The further technical scheme of the utility model is that the knockout plate 21 can be impacted by two side impact rods on machine tool equipment when moving upwards along with the upper die structure.

Compared with the prior art, the utility model adopting the technical scheme has the following beneficial effects:

1. the production efficiency of multi-row sample design is improved by 300 percent

2. And the process blanking is omitted, the processing workload of the die is reduced, and the die parts are reduced, so that the die cost is reduced.

3. The material utilization rate is improved, and the comprehensive utilization rate of the material of the same product is improved by more than 30 percent.

4. The mold has compact structure and convenient and quick maintenance.

5. Stable feeding and high positioning precision.

6. The product quality is stable.

7. The overall dimension is close to the product, can realize the interchange of different product parts, and sharing template and die carrier further reduce mould cost.

8. Reduce the number of processes, improve the comprehensive utilization ratio of personnel and equipment.

Drawings

To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:

FIG. 1 is a structural diagram of the mold assembly of the utility model;

FIG. 2 is a view showing the structure of an upper mold;

FIG. 3 is a lower die structure view;

FIG. 4 is a top perspective view of the upper die;

FIG. 5 is a block diagram of a ready for demolding;

FIG. 6 is a schematic representation after demolding;

FIG. 7 is a schematic view of the overall structure without machining;

FIG. 8 is a schematic view of the fabrication of a monolithic structure;

FIG. 9 is a schematic layout of a mold design;

wherein: 1. fixing screw through holes; 2. forming a curved surface of the part; 3. cutting the part into a shape cutting edge; 4. a sphere-like surface; 5. a magnet mounting hole; 6. a mandril passes through a hole; 7. sinking a material ring; 8. cutting edges of the lower die parts; 9. a lower curved surface; 10. blanking parts; 11. a lower molding die body; 12. screw fixing holes; 13. a material beating ring; 14. a discharging thimble; 15. a spring; 16. die cutting and pulling the parts; 17. a material; 18. a sphere-like part; 17. cutting off leftover materials; 18. a workpiece; 19. a knockout pin; 20. a striker bar; 21. a material beating plate; 22. a primary knockout pin; 23. and (5) a secondary knockout rod.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is noted that, herein, 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.

The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The fixing means, which is not described herein, may be any one of screw fixing, bolt fixing, or glue bonding.

The first embodiment is as follows: with reference to all of the accompanying drawings; a mold structure for spherical shallow-stretching products is characterized in that the mold structure comprises an upper mold structure and a lower mold structure;

the upper die structure comprises an upper die main body, the middle of the upper die main body comprises a fixing screw through hole 1, the upper die main body comprises more than one discharging thimble through hole 6, the diameter below the discharging thimble through hole 6 is smaller, the diameter above the discharging thimble through hole 6 is larger, a discharging thimble can be positioned in the discharging thimble through hole 6, a spring 15 is nested outside the discharging thimble 14, the spring 15 is positioned in the part with the larger diameter of the discharging thimble through hole 6, the lower of the upper die main body comprises an arc-shaped sphere-like surface 4, the upper die main body comprises a magnet mounting hole 5, a magnet is mounted in the magnet mounting hole 5, and the upper die main body comprises a discharging ring sinking groove 7;

the lower die structure comprises a lower forming die main body 11, the lower die structure comprises a screw fixing hole 12, the lower die structure comprises a lower curved surface 9, the side of the lower curved surface 9 comprises a lower die part cutting edge 8, and the side of the lower die structure comprises a lower blanking part 10;

the curved surfaces of both the sphere-like surface 4 and the lower curved surface 9 can be fitted.

The technical scheme of the utility model has the following substantial technical effects and the realization process, namely the basic functions: according to the product characteristics and the equipment capability of my department, the die is suitable for a satin JH21-100 mechanical press;

the mold structure is suitable for shallow drawing molding (such as products with regular shapes like a circle, a sphere, a square and a rectangle) which can be completed at one time for similar products;

the multi-sample-arrangement design (originally designed as three samples) can be adopted without being influenced by factors such as uneven material flow, mutual interference of adjacent products during stretching and the like. The stock layout adopts multiple stock layouts, so that the number of material scrap edges is reduced, and the material utilization rate is improved.

The process of material belt cutting is cancelled, and a smaller feeding step pitch is adopted. Improve the utilization rate of materials

The die structure is that the procedures of oil pit pocking mark pressing, inner hole punching and material cutting and stretching are integrated in the same die set

Adopts a cutting and pulling integrated design scheme. The parts can be cut and stretched at one time in the same process step, and the stability of the product quality is improved.

After the cutting and pulling processes are integrated, the product is brought into an upper model cavity, and the product is discharged from the top point of the equipment.

In order to avoid the phenomenon that the product is subjected to the influence of the gravity of other parts in the process of upward stroke and is taken off in advance, corresponding springs are installed on the discharging devices inside the die to offset the gravity of the die parts, so that the product is taken off in advance.

Can see through above schematic diagram, adsorb the product in last die cavity through magnet, the gravity of here part has been overcome owing to receive the spring action to the material returned part, makes material returned part self gravity can not transmit the product on, then the product receives the adsorption of magnet, can not drop in advance by this part gravity influence.

After this action is accomplished, equipment drives mould upper die base and wholly goes upward, through the both sides striking rod on the lathe equipment when being close to equipment top, striking one-level knockout pin, then the positive knockout plate of one-level knockout pin striking upper die base, the knockout plate striking second grade ejector pin of unloading, the ejector pin of unloading of second grade strikes the knockout ring downstream in the mould shaping part again, it moves down to drive tertiary minor diameter thimble downstream of unloading, make the thimble expose the profiled surface of shaping part, thereby overcome the suction of magnet, make the product break away from the die cavity, accomplish the material returned of product, the product falls on stretching into the take-up (stock) pan in the mould this moment, accomplish the stamping process of a product.

It can be seen that this mould structure has satisfied the requirement that cancellation technology lacks the material through above brief introduction to can adopt the design of multirow appearance, improve material utilization, adopt neotype mould parts machining process to realize the pressure oil hole of product, dash the hole, surely draw integrated into one piece technology, make the product can the top point material returned on equipment, discharge the product through external take-up (stock) pan, realize the continuous automated production of product. The production efficiency is improved.

Example two: as a further development, either in parallel or alternatively independently, a blanking ring is arranged in the blanking ring chute 7. The technical scheme of the utility model has the following substantial technical effects and the realization process, namely the basic functions: the material beating ring is used as a bearing structure for discharging.

Example three: as a further development or in parallel or alternatively independently, a striking pin 19 is also included which is capable of striking the striking ring.

Example four: as a further development or in parallel or alternatively independently, the ball-like part 18 machined between the upper and lower die structures is of iron. The technical scheme of the utility model has the following substantial technical effects and the realization process, namely the basic functions: iron can be attracted by magnets.

Example five: as a further development or in a side-by-side or alternatively independent solution, the knockout pin can be actuated to squeeze the knockout ring when the cope match is lifted upwards.

Example six: as a further improvement scheme or a parallel scheme or an optional independent scheme, the knockout rod comprises more than one stage, the secondary knockout rod can directly extrude the knockout ring downwards, the secondary knockout rod is connected with the primary knockout rod through a plate, and the primary knockout rod is connected with the knockout plate 21. The technical scheme of the utility model has the following essential technical effects and the realization process, namely, the basic functions: referring to fig. 7, multi-stage force transfer is enabled.

Example seven: as a further development or in parallel or alternatively independently, the striker plate 21 can be struck by two side striker rods on the machine tool equipment as it moves upwards with the upper die structure.

This patent can: and continuous automatic production of products is realized. The stretching process gap of the material belt stock layout before stretching forming is eliminated, the single-piece material consumption of the product is reduced, and the production cost is reduced. The cutting and drawing forming of the product are realized, and the automatic material receiving and discharging of the product are realized synchronously. After the product is formed, the material receiving disc is adsorbed to the top point of the equipment in the die cavity, and the material receiving disc penetrates into the die cavity to eject the product through the material beating rod of the equipment. A set of mould frame is similar to the product and is universal, and one mould diversification is realized. And the multi-sample design is adopted to reduce the process scrap of the product and improve the material utilization rate.

The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is to be limited to the embodiments described above.

Claims (7)

1. A mold structure for spherical shallow-stretching products is characterized in that the mold structure comprises an upper mold structure and a lower mold structure;

the upper die structure comprises an upper die main body, the middle part of the upper die main body comprises a fixing screw through hole (1), the upper die main body comprises more than one discharging thimble through hole (6), the diameter of the lower part of the discharging thimble through hole (6) is smaller, the diameter of the upper part of the discharging thimble through hole is larger, a discharging thimble can be positioned in the discharging thimble through hole (6), a spring (15) is nested outside the discharging thimble (14), the spring (15) is positioned in the part of the discharging thimble through hole (6) with the larger diameter, the lower part of the upper die main body comprises an arc-shaped sphere-like surface (4), the upper die main body comprises a magnet mounting hole (5), a magnet is arranged in the magnet mounting hole (5), and the upper die main body comprises a knockout ring sinking groove (7);

the lower die structure comprises a lower forming die main body (11), the lower die structure comprises a screw fixing hole (12), the lower die structure comprises a lower curved surface (9), the edge side of the lower curved surface (9) comprises a lower die part cutting edge (8), and the edge side of the lower die structure comprises a lower cutting part (10);

the curved surfaces of the sphere-like surface (4) and the lower curved surface (9) can be matched.

2. The mold structure for spherical shallow drawing products according to claim 1, wherein a knockout ring is disposed in the knockout ring sink (7).

3. A mold structure for spherical shallow drawing products according to claim 2, further comprising a striking rod (19) capable of striking the striking ring.

4. The mold structure for spherical shallow drawing type products according to claim 1, wherein the spherical part (18) machined between the upper mold structure and the lower mold structure is iron.

5. The mold structure for spherical shallow drawing products according to claim 3, wherein the knockout pin can be actuated to squeeze the knockout ring when the upper mold structure is lifted upward.

6. The mold structure for spherical shallow drawing products according to claim 5, wherein the knockout pin comprises more than one level, the second level knockout pin can directly extrude the knockout ring downwards, the second level knockout pin is connected with the first level knockout pin through a plate, and the first level knockout pin is connected with the knockout plate (21).

7. The mold structure for spherical shallow drawing products according to claim 6, wherein the striker plate (21) can be impacted by two side striker rods on the machine tool equipment when moving upwards along with the upper mold structure.

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