CN214349043U - Special-shaped lock pin forming die - Google Patents

Abstract

The utility model discloses a special-shaped lockpin forming die, which comprises an upper die base and a lower die base, wherein an upper padding plate is arranged below the upper die base, a fixed plate is arranged below the upper padding plate, a male die is arranged inside the fixed plate, a guide pillar is arranged inside the upper die base, a support plate is arranged below the lower die base, a female die is arranged inside the lower die base, a limiting column is arranged on the surface of the female die, a stop mechanism is arranged on one side of the surface of the lower die base, a lower die B is arranged at one end of the stop mechanism, a lower die A is arranged on the right side of the lower die B, and a lower die C is arranged above the lower die A; the utility model has the advantages of one-time molding, high degree of automation, reduction of manufacturing procedures, improvement of workpiece precision, reduction of production cost and easy popularization and use.

Description

Special-shaped lock pin forming die

Technical Field

The utility model belongs to the technical field of the lockpin processing technique and specifically relates to a dysmorphism lockpin forming die is related to.

Background

The lockpin is a lock with a shape similar to a pin as the name implies, and is actually a lock, for example, the lockpin is commonly used for automobile doors, and has the characteristics that the lockpin is convenient to lock, can be automatically locked only by being inserted in place, can bear certain tensile force after being locked, has low requirements on a split pin, needs a hammer or other tools to separate the tail part of the split pin after being inserted into a pin hole, and can not fall off, and the split pin is often used for shaft end positioning, so that sleeve parts sleeved on the shaft end can not fall off, can not bear large force, can not bear long-term abrasion, but is convenient to use and is generally used in places with low requirements on positioning accuracy;

at present, in the process of machining and manufacturing the special-shaped lock pin, a plurality of stations are needed to finish machining of the special-shaped lock pin according to a machining sequence, labor cost investment is high, certain errors can exist in precision due to multiple times of forming in machining procedures, the performance and the service life of parts of formed parts are greatly reduced, product quality is seriously affected, and production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a have one shot forming, degree of automation is high, reduce the preparation process, improve work piece precision, reduce manufacturing cost, easily a special-shaped lockpin forming die who uses widely, solved the problem among the prior art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a dysmorphism lockpin forming die, includes upper die base and die holder, its characterized in that: an upper backing plate is arranged below the upper die base, a fixed plate is arranged below the upper backing plate, a male die is arranged inside the fixed plate, and a guide pillar is arranged inside the upper die base;

the die is characterized in that a supporting plate is arranged below the lower die base, a female die is arranged on the inner side of the lower die base, a limiting column is arranged on the surface of the female die, a material blocking mechanism is arranged on one side of the surface of the lower die base, a lower die B is arranged at one end of the material blocking mechanism, a lower die A is arranged on the right side of the lower die B, and a lower die C is arranged above the lower die A.

The utility model discloses further set up to: the guide posts are arranged in four groups, the guide posts are uniformly arranged at four corners of the upper die base, and the lower die base is provided with guide sleeves matched with the guide posts.

By adopting the technical scheme, the guide pillar is matched with the guide sleeve, so that the guiding accuracy of the upper die base and the lower die base in the die opening and closing machining process is ensured, and the workpiece machining quality is improved.

The utility model discloses further set up to: the fixing plate is internally provided with a screw which is connected with the fixing plate, the upper padding plate and the upper die base in a penetrating way, and the upper padding plate is fixedly connected with the fixing plate through the screw.

Through adopting above-mentioned technical scheme, be used for buffering the blanking force of mould in-process through the upper padding plate, effectually play the guard action to the upper die base structure, can play the effect that prevents the terrace die and drop simultaneously.

The utility model discloses further set up to: the stock stop, the lower die C, the lower die A and the lower die B are mutually matched and in transmission connection.

By adopting the technical scheme, the action sequence among the material blocking mechanism, the lower die C, the lower die A and the lower die B is controlled in a linkage manner, the precision of machining can be reduced, and the precision of a workpiece can be ensured by one-time forming.

The utility model discloses further set up to: the male die and the fixing plate are in transition fit, and the upper surface of the male die is flush with the upper surface of the fixing plate.

By adopting the technical scheme, the positioning connection with better centering performance, better coaxiality and easy disassembly and assembly can be realized by adopting transition fit.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the special-shaped lock pin forming die is used, structurally, a U-shaped lock pin is placed into die cavities of a lower die A and a lower die B, the lower die A and the lower die B are closed and pressurized through a press machine, a stop mechanism extends out at the moment, the U-shaped lock pin is positioned, the lower die C is closed and pressurized through the press machine further, a special-shaped part is formed, then the stop mechanism is pulled back, a male die runs downwards along the direction of a guide pillar, the forming of the special-shaped lock pin is completed, and errors caused by multi-process machining forming of the special-shaped lock pin are avoided;

2. structurally, the processing procedure of the special-shaped lock pin is simplified, so that an economical and efficient processing method of the special-shaped lock pin is realized, the production cost is low, the die is simple and convenient to maintain, the popularization and the implementation are convenient, the special-shaped lock pin is suitable for processing parts with complicated special shapes, better economic benefits and social benefits can be generated, the popularization and application values are better, the structure is simple, and the practicability is high.

Drawings

Fig. 1 is a schematic front view of a special-shaped lock pin forming die of the present invention;

fig. 2 is the utility model discloses a structural schematic diagram is overlooked to dysmorphism lockpin forming die's die holder.

In the figure, 1, an upper die base; 2. a screw; 3. a male die; 4. a limiting column; 5. a female die; 6. a support plate; 7. an upper base plate; 8. a fixing plate; 9. a guide post; 10. a lower die holder; 11. a stock stop mechanism; 12. c, lower die; 13. a lower die A; 14. and (7) a lower die B.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, in order to disclose the utility model, the special-shaped lock pin forming die comprises an upper die base 1 and a lower die base 10, wherein an upper padding plate 7 is arranged below the upper die base 1, a limiting column 4 is arranged on the surface of a female die 5, a material stop mechanism 11 is arranged on one side of the surface of the lower die base 10, one end of the material stop mechanism 11 is provided with a lower die B14, the right side of a lower die B14 is provided with a lower die a13, and a lower die C12 is arranged above the lower die a 13;

in this embodiment, during the use, assemble upper die base 1 with the press, make upper die base 1 have an accurate locating position on the press, be used for buffering the blanking force of die closing in-process through upper padding plate 7, effectual upper die base 1 structure plays the guard action, put into the die cavity of lower mould a13, lower mould B14 with the U-shaped lockpin of treating processing, restrict the location of U-shaped lockpin through spacing post 4, prevent to deviate from taking place, make lower mould a13, lower mould B14 carry out the compound die pressurization through the press, striker 11 stretches out at this moment, fix a position the U-shaped lockpin, further make lower mould C12 carry out the compound die pressurization through the press, carry out the shaping of dysmorphism position, in practical application, also can be according to actual need more the arrangement mode and the fixed mode of upper padding plate 7 and upper die base 1, do not specifically limit here.

As shown in fig. 1 and 2, a fixing plate 8 is arranged below an upper backing plate 7, a male die 3 is arranged inside the fixing plate 8, a guide post 9 is arranged inside an upper die holder 1, a supporting plate 6 is arranged below a lower die holder 10, a female die 5 is arranged inside the lower die holder 10, and a material stop mechanism 11 is arranged on one side of the surface of the lower die holder 10;

in this embodiment, through pulling back stock stop 11, terrace die 3 moves downwards along guide pillar 9 direction and the shaping of the mutual adaptation of die 5, prevent that terrace die 3 atress from being ejecting through fixed plate 8, play the cushioning effect through bearing plate 6 at 1 downstream in-process of upper die base, strengthen die holder 10's compressive capacity, accomplish the shaping of dysmorphism lockpin, avoided the error that special-shaped lockpin multiple operation machine-shaping caused, then stock stop 11 each action resets, accomplishes the shaping of once bending, begin next circulation, the utility model discloses simple structure, the practicality is strong.

Referring to fig. 1, the guide pillars 9 are arranged in four groups, the guide pillars 9 are uniformly arranged at four corners of the upper die base 1, the lower die base 10 is provided with guide sleeves matched with the guide pillars 9, the guide accuracy of the upper die base 1 and the lower die base 10 in the die opening and closing machining process is guaranteed through the matching of the guide pillars 9 and the guide sleeves, and the workpiece machining quality is improved.

Referring to fig. 1, the inside screw 2 that is provided with of fixed plate 8, screw 2 through connection fixed plate 8, upper padding plate 7 and upper die base 1, upper padding plate 7 passes through screw 2 fastening connection with fixed plate 8, is used for the buffering to close the blanking power of mould in-process through upper padding plate 7, and the effectual guard action that plays to upper die base 1 structure can play the effect that prevents terrace die 3 and drop simultaneously.

Referring to fig. 2, the stock stop 11, the lower die C12, the lower die a13 and the lower die B14 are mutually matched and in transmission connection, and the action sequence among the stock stop 11, the lower die C12, the lower die a13 and the lower die B14 is controlled in a linkage mode, so that the precision of machining can be reduced, and the precision of a workpiece can be guaranteed more through one-step forming.

Referring to fig. 1, transition fit is adopted between the male die 3 and the fixed plate 8, the upper surface of the male die 3 is flush with the upper surface of the fixed plate 8, and the transition fit is adopted to achieve positioning connection which has good centering performance and coaxiality and is easy to disassemble and assemble.

The implementation principle of the embodiment is as follows:

the utility model relates to a dysmorphism lockpin forming die, during the use, assemble upper die base 1 with the press, make upper die base 1 have an accurate locating position on the press, be used for buffering the blanking force of mould closing in-process through upper padding plate 7, effectual upper die base 1 structure plays the guard action, put the U-shaped lockpin of waiting to process into the die cavity of lower mould A13, lower mould B14, restrict the location of U-shaped lockpin through spacing post 4, prevent deviating, make lower mould A13, lower mould B14 carry out the compound die pressurization through the press, stock stop 11 stretches out at this moment, fix a position the U-shaped lockpin, further make lower mould C12 carry out the compound die pressurization through the press, carry out the shaping of dysmorphism position, then stock stop 11 is pulled back, terrace die 3 moves downwards along guide pillar 9 direction and is the shaping of mutually supporting with die 5, prevent that terrace die 3 atress from being ejected through fixed plate 8, the upper die base 1 plays a role in buffering through the supporting plate 6 in the downward operation process, the pressure resistance of the lower die base 10 is enhanced, the molding of the special-shaped lock pin is completed, errors caused by multi-process machining and molding of the special-shaped lock pin are avoided, then the stop mechanism 11 is reset through actions, one-time bending molding is completed, and the next cycle is started to solve the technical problems in the prior art.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a dysmorphism lockpin forming die, includes upper die base (1) and die holder (10), its characterized in that: an upper backing plate (7) is arranged below the upper die holder (1), a fixed plate (8) is arranged below the upper backing plate (7), a male die (3) is arranged inside the fixed plate (8), and a guide pillar (9) is arranged inside the upper die holder (1);

the die is characterized in that a supporting plate (6) is arranged below the lower die holder (10), a female die (5) is arranged on the inner side of the lower die holder (10), a limiting column (4) is arranged on the surface of the female die (5), a material blocking mechanism (11) is arranged on one side of the surface of the lower die holder (10), a lower die B (14) is arranged at one end of the material blocking mechanism (11), a lower die A (13) is arranged on the right side of the lower die B (14), and a lower die C (12) is arranged above the lower die A (13).

2. The special-shaped lock pin forming die as claimed in claim 1, wherein: four groups of guide posts (9) are arranged, the guide posts (9) are uniformly arranged at four corners of the upper die base (1), and the lower die base (10) is provided with guide sleeves matched with the guide posts (9).

3. The special-shaped lock pin forming die as claimed in claim 1, wherein: the fixing plate (8) is internally provided with a screw (2), the screw (2) is connected with the fixing plate (8), the upper padding plate (7) and the upper die base (1) in a penetrating manner, and the upper padding plate (7) is fixedly connected with the fixing plate (8) through the screw (2).

4. The special-shaped lock pin forming die as claimed in claim 1, wherein: the material blocking mechanism (11), the lower die C (12), the lower die A (13) and the lower die B (14) are matched with each other for transmission connection.

5. The special-shaped lock pin forming die as claimed in claim 1, wherein: transition fit is adopted between the male die (3) and the fixing plate (8), and the upper surface of the male die (3) is flush with the upper surface of the fixing plate (8).

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