CN217252151U

CN217252151U - Upper punching structure of non-automatic die for large hard alloy products

Info

Publication number: CN217252151U
Application number: CN202220402620.8U
Authority: CN
Inventors: 裘利铭; 刘攀; 楼江鹏; 金玲红
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-23
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a belong to big goods mould of carbide drift technical field's a big goods of carbide non-automatic mould on structure, including the drift, the drift includes outer drift and interior drift, and wherein, outer drift includes first drift portion, and the inside of first drift portion is equipped with the embedded groove, and interior drift includes second drift portion, and the shape of second drift portion is corresponding with the embedded groove, and embedding of second drift portion is in the embedded groove. The utility model designs the upper punch into the outer punch and the inner punch, when in demoulding, the lifting base plate can be placed at the demoulding position of the outer punch to carry the pressed compact, so that the stress is more uniform when the pressed compact is carried, thereby effectively reducing the risk of corner falling or cracking; the utility model discloses the shape of second drift portion is corresponding with the embedded groove, and second drift portion is frustum shape structure, and during the drawing of patterns of being convenient for, outer drift drops along with the die.

Description

Upper punching structure of non-automatic die for large hard alloy products

Technical Field

The utility model belongs to the technical field of the punch on the big goods mould of carbide, concretely relates to non-automatic mould's of big goods of carbide structure of punching a hole.

Background

With the deep development of industry, the hard alloy used as the industrial tooth is developed towards two ends, such as finer and finer grain size, coarser and coarser grain size, smaller and smaller size, and bigger, now 30-50kg of light hard alloy products and 500kg of heavy hard alloy products have certain difficulties in molding, transporting and processing, especially product molding and transporting, because the molded compact has low strength before densification and sintering, the angle can be broken or cracked carelessly slightly, and the product can be discarded completely.

The large hard alloy products are generally not large-batch products, because the automatic die is difficult to load and unload, the time is long, the time is short, the time is 1-2 days, and the time is long, the time is 1-4 weeks, the automatic die is basically not used, the non-automatic die can directly and stably lift the product on the upper punching end face after the product is pressed and demoulded, and even if the product is lifted or lifted by a lifting device, the periphery of the product is forced unevenly when lifted, the corner falling or cracking condition is very easily caused at the bottom part of the product, because the end face of the product is the same as the upper punching plane and is tightly attached to the upper punching plane, if the product is a small product, the product can be directly lifted stably by the upper punching end face of the product, but if the product is a large product, the product cannot be lifted by 1-2 individuals.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides an upper punch structure of non-automatic mould of hard alloy large product has the characteristics of the condition of falling angle or fracture when effectively reducing the product drawing of patterns.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a non-automatic mould's of carbide large products structure that goes up, includes the punch head, and the punch head includes outer punch head and interior punch head, and wherein, outer punch head includes first punch head portion, and the inside of first punch head portion is equipped with the embedded groove, and interior punch head includes second punch head portion, and the shape and the embedded groove of second punch head portion are corresponding, and second punch head portion embedding is in the embedded groove.

In order to facilitate demoulding, the outer punch falls off along with the female die, and meanwhile, the clearance between the outer punch and the inner punch in the outer punch can be matched in a taper fit manner, so that the problem of pressed compact surface grains caused by the combined punch is reduced, and further, the second punch is of a frustum-shaped structure.

In order to be connected with a pressure head of a press during press forming, a first punch rod is further arranged above the first punch head.

In order to ensure that a gap is reserved between the first punch and the female die and friction is avoided, a first annular groove is further formed in the outer side of the first punch.

For accommodating the second punch, furthermore, the first punch is provided with an accommodating groove in its interior.

In order to be connected with the demoulding base when in demoulding, a second punch rod is further arranged above the second punch head.

In order to ensure that a gap is reserved between the second punch and the first punch and friction is avoided, a second annular groove is further formed in the outer side of the second punch.

In order to reduce the weight of the upper punch and save the cost, a clearance groove is further arranged inside the second punch rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model designs the upper punch into the outer punch and the inner punch, when demoulding, the demoulding base acts on the inner punch, and the end face size of the inner punch is obviously smaller than that of the pressed compact, so that a lifting base plate can be placed at the demoulding position of the outer punch to carry the pressed compact, the stress is more uniform when the pressed compact is carried, and the risk of corner falling or cracking is effectively reduced;

2. the utility model discloses the shape of second drift portion is corresponding with the embedded groove, and second drift portion is frustum shape structure, and during the drawing of patterns of being convenient for, outer drift drops along with the die, and simultaneously, clearance between the drift cooperation in the tapering cooperation can outer drift fish reduces the pressed compact surface line problem that the combination drift caused.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the outer punch of the present invention;

fig. 3 is a schematic structural view of the inner punch of the present invention;

FIG. 4 is a schematic view of the pressing structure of the present invention;

FIG. 5 is a schematic structural view of the mold of the present invention;

FIG. 6 is a schematic structural view after demolding;

in the figure: 1. an upper punch; 2. an outer punch; 21. a first punch portion; 22. a first ram; 23. accommodating grooves; 24. a first ring groove; 25. a groove is embedded; 3. an inner punch; 31. a second punch portion; 32. a second ram; 33. an empty avoiding groove; 34. a second ring groove; 4. a female die; 5. compacting; 6. a lower punch; 7. demolding the ejector block; 8. and (7) demolding the base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a non-automatic mould's of carbide large product upper punch structure, includes upper punch 1, and upper punch 1 includes outer drift 2 and interior drift 3, and wherein, outer drift 2 includes first drift portion 21, and the inside of first drift portion 21 is equipped with embedded groove 25, and interior drift 3 includes second drift portion 31, and the shape of second drift portion 31 corresponds with embedded groove 25, and second drift portion 31 imbeds in embedded groove 25.

Through adopting above-mentioned technical scheme, design into outer drift 2 and interior drift 3 two parts with upper punch 1, during the drawing of patterns, drawing of patterns base 8 is used in on the drift 3 including, and the terminal surface size of interior drift 3 is obviously less than the terminal surface size of pressed compact 5 to can place the backing plate of jack-up in the position of the 2 drawing of patterns of outer drift, carry pressed compact 5, atress more even when making pressed compact 5 carry, thereby the effectual risk that falls the angle or ftractures that has reduced.

Specifically, the second punch portion 31 has a frustum-shaped structure.

Through adopting above-mentioned technical scheme, when being convenient for the drawing of patterns, outer drift 2 drops along with die 4, and simultaneously, the clearance between 3 cooperations of drift in the 2 fishes of tapering cooperation can outer drift reduces the pressed compact surface line problem that the combination drift caused.

Specifically, a first punch 22 is disposed above the first punch 21.

Through adopting above-mentioned technical scheme for be connected with the pressure head of press when compression moulding.

Specifically, a first ring groove 24 is formed on the outer side of the first punch 22.

By adopting the technical scheme, a gap is formed between the first punch 22 and the female die 4, so that friction is avoided.

Specifically, the first punch 22 is provided with a receiving groove 23 therein.

By adopting the technical scheme, the second punch 32 is accommodated.

Specifically, a second punch 32 is disposed above the second punch portion 31.

By adopting the technical scheme, the die-stripping mechanism is connected with the die-stripping base 8 during die stripping, and the outer diameter of the die-stripping base 8 is equal to that of the second punch 32.

Example 2

The present embodiment is different from embodiment 1 in that: specifically, the second plunger 32 is provided with a second annular groove 34 on the outer side.

By adopting the technical scheme, a gap is formed between the second punch 32 and the first punch 22, so that friction is avoided.

Example 3

The present embodiment is different from embodiment 1 in that: specifically, the second plunger 32 is provided with a clearance groove 33 inside.

By adopting the technical scheme, the weight of the upper punch 1 can be reduced, and the cost is saved.

To sum up, the utility model discloses design outer drift 2 and inner drift 3 two parts with upper punch 1, during the drawing of patterns, drawing of patterns base 8 is used in inner punch 3, and the terminal surface size of inner punch 3 is obviously less than the terminal surface size of pressed compact 5 to can place the backing plate of jack-up at the position of outer punch 2 drawing of patterns, carry pressed compact 5, atress is more even when making pressed compact 5 carry, thereby the effectual risk that falls the angle or ftractures has been reduced; the utility model discloses the shape of second drift portion 31 is corresponding with embedded groove 25, and second drift portion 31 is frustum shape structure, and during the drawing of patterns of being convenient for, outer drift 2 drops along with die 4, and simultaneously, clearance between 3 cooperations of drift in the 2 fishes of tapered cooperation can outer drift, reduces the pressed compact surface line problem that the combination drift caused.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a non-automatic mould of carbide large products goes up structure on, includes the top punch, its characterized in that: the upper punch comprises an outer punch and an inner punch, wherein the outer punch comprises a first punch part, an embedded groove is formed in the first punch part, the inner punch comprises a second punch part, the second punch part is corresponding to the embedded groove in shape, and the second punch part is embedded in the embedded groove.

2. The upper punch structure of the non-automatic die for the large hard alloy products according to claim 1, characterized in that: the second punch head is of a frustum-shaped structure.

3. The upper punching structure of the non-automatic die for large hard alloy products according to claim 1, wherein: a first punch rod is arranged above the first punch head.

4. The upper punch structure of the non-automatic die for large cemented carbide products according to claim 3, wherein: and a first annular groove is formed in the outer side of the first punch.

5. The upper punch structure of the non-automatic die for large cemented carbide products according to claim 3, wherein: the inside of first jumper bar is equipped with the holding tank.

6. The upper punching structure of the non-automatic die for large hard alloy products according to claim 1, wherein: and a second punch rod is arranged above the second punch head.

7. The upper punch structure of the non-automatic die for the large hard alloy products according to claim 6, characterized in that: and a second annular groove is formed in the outer side of the second punch.

8. The upper punch structure of the non-automatic die for large cemented carbide products according to claim 6, wherein: and a clearance groove is formed in the second punch.