CN207952378U - Two section self-lockings squeeze convex punch and mold - Google Patents

Abstract

The utility model discloses two section self-lockings to squeeze convex punch and mold.The two sections self-locking squeezes convex punch, including shank and mold insert, and shank first end is the connecting plate for connecting mold fixed plate, shank second end forms tenon, mold insert first end is equipped with tongue-and-groove, and mold insert second end is punch end, and tenon is connected with tongue and groove fit realizes that shank and mold insert are detachably connected.The utility model using the above structure, to reach self-locking effect；It utmostly ensure that the service life of punch and save processing cost.And processing technology is more simple, is divided to two knife lines to cut and can be completed, reduces processing cost, reduces the labor intensity of worker, improves capacity utilization, improves production efficiency.

Description

Two section self-lockings squeeze convex punch and mold

Technical field

The utility model is related to quick die change device technical fields, and in particular to two section self-lockings squeeze convex punch and mold.

Background technology

In recent years, China's mold production and marketing scale rises year by year, and mold is the tool for formed article, and this tool is by each Kind part is constituted, and different molds is made of different parts, is known as the title of " industry is female ".The importance of mold determines We need to develop the constitutional detail quickly changed the mold, greatly to shorten mould replacing time, improve lathe utilization rate, reduce worker's labor Fatigue resistance reduces part processing cost, improves production efficiency.

Convex punch is squeezed to be specifically applied to squeeze steel back convex closure product.With hydraulic press third mold and band are pushed to lateral compression Dynamic to squeeze convex punch work, material is squeezed convex punch and pushes forward, is allowed to be plastically deformed, to be made required convex closure partly at Product.In addition steel back convex closure plate thickness is generally in 4.5mm or more, tensile strength >=450N/mm of common used material².Again since convex closure produces The position of product protrusion and size require, and the extrusion orifice design of mold is restricted so that is squeezed convex punch working position and (is squeezed Be pressed into mold orifice part position) size also limited.Such as squeeze convex punch work department bit length 40mm* wide 23.7mm* thickness 6.5mm.It is squeezed in convex closure forming process at this, squeezes the power that convex punch is subjected to and about reach 100KN.Therefore, it is strong to squeeze convex punch Degree just seems relatively weak, is easy to break.

As shown in Figure 1, the existing convex punch 10 that squeezes is an overall structure, processing charges is expensive.And existing crowded convex punch 10 and mold fixed plate it is affixed by screw, if existing in production squeeze convex punch and 10 collapse mould, die ontology need to be turned on Screw realization between mold fixed plate removes mold fixed plate, then the entire existing convex punch 10 that squeezes is removed, and replaces New squeezes convex punch, then is reinstalled by form removal opposite sequence, mold changing dismounting trouble.The convex punch that squeezes for collapsing mould is entirely scrapped, wave Fei great, scrap cost is high, and the time for replacing crowded convex punch is long, influences production efficiency.

Utility model content

The purpose of this utility model is that disclosing two section self-lockings squeezes convex punch and mold, solves existing crowded convex punch Replacing construction is long, it has not been convenient to, the high problem of scrap cost.

In order to achieve the above objectives, the utility model adopts the following technical solution：

Two section self-lockings squeeze convex punch, including shank and mold insert, and shank first end is the company for connecting mold fixed plate Fishplate bar, shank second end form tenon, and mold insert first end is equipped with tongue-and-groove, and mold insert second end is punch end, tenon and tongue and groove fit Connection realizes that shank and mold insert are detachably connected.

Further, the tongue-and-groove and tenon interference fit reach self-locking effect.

Further, the shank is an overall structure, and shank, which further includes first connecting portion, connecting plate and tenon, passes through the One interconnecting piece connects.

Further, the central axis M1 of the tongue-and-groove and the central axis M2 at the punch end are staggered.

Further, the section of the tenon is in the structure of interior narrow outer width, the bending place rounded corner of tenon.

Further, the connecting plate is equipped with threaded hole.

Further, the mold insert further includes second connecting portion, and the tongue-and-groove is set to second connecting portion one end, the punch end Set on the second connecting portion other end.

Further, the shape of the tongue-and-groove and the shape of the tenon cooperate.

The invention also discloses molds, including the two sections self-locking to squeeze convex punch, movable mold and stent, activity The mold fixed plate of mould and the connecting plate pass through screw connection.

The prior art is compared, the beneficial effects of the utility model：

1, two section self-lockings squeeze the structure that convex punch uses shank and mold insert two-segment type in the utility model, when mold insert collapses mould When, quickly mold insert can be touched from shank by "painted-face" character in opera, then new mold insert alignment tenon tapping is entered, you can complete Operation is changed the mold at primary dismounting, for the utility model according to the Impact direction and operation principle for squeezing convex punch, application is mutually matched Tenon and tongue-and-groove, to reach self-locking effect；It utmostly ensure that the service life of punch and save processing cost.And add Work technique is more simple, is divided to two knife lines to cut and can be completed, reduces processing cost, reduce the labor intensity of worker, raising is set Standby utilization rate, improves production efficiency.

2, mold squeezes the structure of convex punch using two section self-lockings, can be completed with clamped one time, quickly, precisely changes the mold.Energy The time replaced after collapsing mould and squeeze convex punch is enough greatly shortened, particularly suitable for being used in numerous technical process for collapsing mould.It is applicable in Range is wide, highly practical.In addition it can save 70% or more processing cost and Master Cost.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is the schematic elevation view of crowded convex punch in the prior art；

Fig. 2 is the schematic elevation view that two section self-lockings squeeze convex punch embodiment one in the utility model；

Fig. 3 is the schematic elevation view of Fig. 2 medium thick shanks；

Fig. 4 is that the right side of Fig. 3 regards schematic diagram；

Fig. 5 is the schematic elevation view of mold insert in 2；

Fig. 6 is that the right side of Fig. 5 regards schematic diagram.

Fig. 7 is the structural schematic diagram of Die Embodiment two in the utility model；

It is existing to squeeze convex punch 10 in Fig. 1；

In Fig. 2 to Fig. 6, two section self-lockings squeeze convex punch 20；Shank 1；Connecting plate 11；Threaded hole 111；Tenon 12；Tenon Section 121；The bending place 122 of tenon；First connecting portion 13；Mold insert 2；Tongue-and-groove 21；Punch end 22；Second connecting portion 23；

In Fig. 7, mold 30, movable mold 3；Mold fixed plate 31；Stent 4.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Embodiment one

The two section self-lockings as shown in Fig. 2 to Fig. 6 embodiments 1 squeeze convex punch 20, including shank 1 and mold insert 2, shank 1 first End is the connecting plate 11 for connecting mold fixed plate, and 1 second end of shank forms tenon 12, and 2 first end of mold insert is equipped with tongue-and-groove 21, 2 second end of mold insert is punch end 22, and tenon 12 and tongue-and-groove 21, which are connected, realizes that shank 1 and mold insert 2 are detachably connected.This implementation Example middle tenon groove and tenon interference fit reach self-locking effect.

In the present embodiment, shank 1 is an overall structure, further includes first connecting portion 13, and connecting plate 11 and tenon 12 are logical Cross the connection of first connecting portion 13.The section 121 of tenon is in the structure of interior narrow outer width, and 122 rounded corner of bending place of tenon avoids answering Power is excessively concentrated.Connecting plate 11 is equipped with threaded hole 111.Connecting plate 11 and the length L1 of first connecting portion 13 be 115~ The length L2 of 118mm, first connecting portion 13 are 95~98mm.

Mold insert 2 further includes second connecting portion 23, and tongue-and-groove 21 is set to 23 one end of second connecting portion, and punch end 22 is set to second 23 other end of interconnecting piece.The shape of tongue-and-groove 21 and the shape of tenon 12 cooperate.The length L3 of mold insert 2 is 68~70mm.Tenon The central axis M1 of slot 21 and the central axis M2 at punch end 22 are staggered.The central axis M1 of tongue-and-groove 21 is apart from punch end The distance D1 of bottom surface is 4~5mm.

Embodiment one using the above structure, can laterally touch mold insert 2, and tenon 12 is made to enter tongue-and-groove 21, realize 1 He of shank Mold insert 2 is locked.When mold insert 2 collapses mould, quickly mold insert 2 can be touched from shank 1 by "painted-face" character in opera, then new edge Part 2 is directed at the tapping of tenon 12 and enters, you can completes primary dismounting mold changing operation.The present embodiment uses 2 two-segment type of shank 1 and mold insert Structure, processing technology is more simple, is divided to two knife lines to cut and can be completed, reduces processing cost, the labour for reducing worker is strong Degree improves capacity utilization, improves production efficiency.

The other structures of embodiment one are referring to the prior art.

Embodiment two

The mold 30 as shown in Fig. 7 embodiments two, including two section self-lockings shown in embodiment one squeeze convex punch 20, movable mold 3 With stent 4, by screw connection, screw passes through connecting plate 11 for the mold fixed plate 31 of movable mold 3 and the connecting plate 11 of shank 1 Threaded hole 111.Embodiment two using the above structure, after two section self-lockings, which squeeze convex punch 20, collapses mould, replaces mold insert 2, Without removing mold fixed plate 31, shank 1 can be used for a long time, and provide accessory utilization rate, reduce material cost.

The other structures of embodiment two are referring to the prior art.

The utility model is not limited to the above embodiment, if various changes or modifications to the utility model do not take off Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to include these modification and variations.

Claims (9)

1. a liang section self-locking squeezes convex punch, it is characterised in that：Including shank and mold insert, shank first end is solid for connecting mold The connecting plate of fixed board, shank second end formed tenon, mold insert first end be equipped with tongue-and-groove, mold insert second end be punch end, tenon and Tongue and groove fit connection realizes that shank and mold insert are detachably connected.

2. two section self-lockings squeeze convex punch according to claim 1, it is characterised in that：The tongue-and-groove and the tenon interference are matched Conjunction reaches self-locking effect.

3. two section self-lockings squeeze convex punch according to claim 1, it is characterised in that：The shank is an overall structure, Shank further includes first connecting portion, and connecting plate is connected with tenon by first connecting portion.

4. two section self-lockings squeeze convex punch according to claim 1, it is characterised in that：The central axis M1 of the tongue-and-groove and institute The central axis M2 for stating punch end is staggered.

5. squeezing convex punch according to two section self-lockings described in Claims 1-4 any one, it is characterised in that：The tenon is cut Face is in the structure of interior narrow outer width, the bending place rounded corner of tenon.

6. two section self-lockings squeeze convex punch according to claim 5, it is characterised in that：The connecting plate is equipped with threaded hole.

7. two section self-lockings squeeze convex punch according to claim 5, it is characterised in that：The mold insert further includes the second connection Portion, the tongue-and-groove are set to second connecting portion one end, and the punch end is set to the second connecting portion other end.

8. two section self-lockings squeeze convex punch according to claim 5, it is characterised in that：The shape of the tongue-and-groove and the tenon Shape cooperate.

9. mold, it is characterised in that：Including described in claim 1 to 8 any one two section self-lockings squeeze convex punch, movable mold and Stent, the mold fixed plate of movable mold and the connecting plate pass through screw connection.