CN1966175A

CN1966175A - Mold

Info

Publication number: CN1966175A
Application number: CN 200510123204
Authority: CN
Inventors: 刘航舟
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2005-11-15
Filing date: 2005-11-15
Publication date: 2007-05-23

Abstract

The invention relates to a mould, which comprises upper mould base, lower mould base, concave mould, edging ring and fixed convex mould, wherein the concave mould is fixed on upper mould base; the fixed convex mould is fixed on lower mould base; the edging ring is between the concave mould and lower mould base; said mould also comprises float convex mould with shaping block and support rod; the support rod comprises boss; the edging ring comprises step hole; the float convex mould is in the step hole. The inventive mould mounts the convex mould on the edging ring to move together, to shape the convex part easily, reduce cost and improve efficiency.

Description

A kind of mould

Technical field

The present invention relates to the diel field, more particularly, relate to a kind of mould that can form product with independent bossing.

Background technology

In the prior art, diel comprises following components substantially: upper bolster, die shoe, die, punch and blank holder.Generally, die and upper bolster form integrative-structure, punch or form integrative-structure with die shoe or be fixed to mechanically on the die shoe, and blank holder is supported between die and the die shoe by pneumatic push rod.So for general mould, in the forming process of whole product, the punch in the mould is fixed, and activity only is blank holder and the die that moves downward.

Yet, more than traditional mould structure only be only applicable to the situation that the bossing concentrated area on the product connects together.As shown in Figure 1, according to the actual needs, some product is except requiring to form the integrated convex part 2 that connects together, also need to form one or more the independent bossing 1 that does not connect together with integrated convex part 2, do not link to each other between independent bossing 1 wherein and the integrated convex part 2, but be separated with certain distance.Therefore, on mould, the forming terrace die piece of these independent bossings 1 of being used to be shaped just can not be linked to be overall fixed at die shoe with the forming terrace die piece of the integrated convex part 2 that is used to be shaped, but must be fixed on the die shoe independently separately, while is again because fixing separately convex module has certain height, so the mechanical strength of the convex modules of these independent settings is not enough.When utilizing this mould that product is formed, because pressure is bigger, these fixing separately convex modules very easily fracture and damage, and therefore this shaping with product of independent bossing becomes the problem that this area need solve.

Summary of the invention

The purpose of this invention is to provide a kind of mould that can form product easily with independent bossing.

Mould provided by the invention comprises upper bolster 3, die shoe 4, die 5, blank holder 6 and solid punch 7, die 5 is fixed on the upper bolster 3, solid punch 7 is fixed on the die shoe 4, blank holder 6 is supported between die 5 and the die shoe 4, and wherein, described mould also comprises floating punch 8, floating punch 8 comprises shaping piece 9 and support bar 10, comprise boss 13 on the support bar 10, comprise stepped hole 14 on the blank holder 6, floating punch 8 is assemblied in the stepped hole 14.

Mould provided by the invention is assemblied in blank holder by the punch of the independent bossing that will be used to be shaped, make it can be movable with blank holder, thereby efficiently solve the problem of the independent bossing shaping difficulty on the product, therefore reduced manufacturing cost, improved production efficiency.And mould provided by the invention also to have a forming quality good, simple in structure, be easy to make, and low cost and other advantages.

Description of drawings

Fig. 1 also has the structural representation of the product of independent bossing for except that having the integral boss branch that connects together;

Fig. 2 is the partial structurtes schematic diagram of mould provided by the invention when in running order;

Partial structurtes schematic diagram when Fig. 3 is in original state for mould provided by the invention has wherein omitted upper bolster, die and solid punch.

The specific embodiment

Below, in conjunction with the accompanying drawings, the present invention is described in detail.

As shown in Figure 2, mould provided by the invention comprises upper bolster 3, die shoe 4, die 5, blank holder 6 and solid punch 7.Die 5 is fixed on the upper bolster 3 by various known modes, as connect by screw, pin connects, rivet connects, bonding, weld or be cast as integrative-structure, under the preferable case, die 5 is structure as a whole with upper bolster 3.Solid punch 7 is fixed on the die shoe 4 by various known modes, as connect by screw, pin connects, rivet connects, bonding, weld or be cast as integrative-structure, under the preferable case, solid punch 7 is fixed on the die shoe 4 by screw.Blank holder 6 supports by various known modes and is positioned between die 5 and the die shoe 4, and as supporting by air-cushion eject-rod, its concrete structure is conventionally known to one of skill in the art, does not repeat them here.

Mould provided by the invention also comprises floating punch 8, and floating punch 8 comprises shaping piece 9 and support bar 10, comprises boss 13 on the support bar 10, comprises stepped hole 14 on the blank holder 6, and floating punch 8 is assemblied in the stepped hole 14.

Wherein, the shaping piece 9 of described floating punch 5 is used for product is formed, and its size is different with requiring according to the difformity of different products with the contacted surface of product.The shape and size of support bar 10 can be decided as required, as long as can satisfy the support to shaping piece 9.

The shape and size of the boss 13 on the described support bar 10 can be decided as required.Boss 13 can be provided with a circle around support bar 10, perhaps also independently at least two blocks can only be set, the shape and size of each block can be the same or different, but the contacted surface, step place that must guarantee the stepped hole 14 of each block and blank holder 6 is positioned on the same horizontal plane, and described block can be arranged on along the outer surface of support bar on the optional position, be arranged under the preferable case on the position of symmetry, so that each block can be evenly stressed.

Can be connected by various known modes between shaping piece 9 and the support bar 10, as connect by screw, pin connects, rivet connects, bonding, weld or be cast as integrative-structure, under the preferable case, connect by screw.Can be connected by various known modes between support bar 10 and the boss 13, as connect by screw, pin connects, rivet connects, bonding, weld or be cast as integrative-structure, under the preferable case, be cast as integrative-structure.

The shape and size of the stepped hole 14 on the described blank holder 6 can be decided as required.When floating punch 8 being assembled in this stepped hole 14, the boss 13 on the support bar 10 engages with the step place of stepped hole 14.

Under the preferable case, mould provided by the invention also comprises cushion block 11.Cushion block 11 is fixed on the die shoe 4 by various known modes, as by screw, pin, rivet, bonding, weld or be cast as integrative-structure, under the preferable case, cushion block 11 is fixed on the die shoe 4 by screw.Cushion block 11 is arranged on the support bar 10 corresponding positions with floating punch 8, promptly when blank holder 6 drops to the bottom of stroke position, support bar 10 will engage with cushion block 11, playing the effect of the downward active force of buffering floating punch 8, so the particular location of cushion block 11 on die shoe 4 should be different and different according to the position of floating punch 8.And the shape and size of cushion block 11 can be decided as required.

Under the preferable case, blank holder 6 provided by the invention can be made split type, and the shaping piece 9 part blank holder on every side that is about to floating punch 8 is made the form of inserting separately, and then is fixed on the whole blank holder by various known modes.

When using mould provided by the invention that product is formed, only need floating punch 8 is assembled in the stepped hole 14 on the blank holder and get final product.When patrix is not also depressed; as shown in Figure 3; the upper surface of the shaping piece 9 of floating punch 8 and the blank holder around it are positioned at same horizontal plane; therefore can the maintenance level in the time of can guaranteeing that product 15 is on being placed into blank holder 6 and shaping piece 9; this moment floating punch 8 support bar 10 on the stepped hole 14 of boss 13 and blank holder 6 in the step place contact, promptly the step place of floating punch 8 dependence stepped holes 14 is suspended in the blank holder.

When patrix drops to bottom of stroke, when entire die is closed, as shown in Figure 2, the support bar 10 of floating punch 8 contacts with cushion block 11 on being fixed on die shoe 4, floating punch 8 risings this moment one segment distance, the step place in the boss 13 on the support bar 10 and the stepped hole 14 of blank holder 6 is separated.Distance between the step place in this moment boss 13 and the stepped hole 14, i.e. the distance of floating punch 8 risings, the piece 9 that equals herein to be shaped exceeds the height of blank holder on every side, just this part product height that need be shaped.

Claims

1. a mould comprises upper bolster (3), die shoe (4), die (5), blank holder (6) and solid punch (7), die (5) is fixed on the upper bolster (3), solid punch (7) is fixed on the die shoe (4), blank holder (6) is supported between die (5) and the die shoe (4), it is characterized in that, described mould also comprises floating punch (8), floating punch (8) comprises shaping piece (9) and support bar (10), comprise boss (13) on the support bar (10), comprise stepped hole (14) on the blank holder (6), floating punch (8) is assemblied in the stepped hole (14).

2. mould according to claim 1 wherein, is connected by screw between described shaping piece (9) and the support bar (10).

3. mould according to claim 1, wherein, described boss (13) is structure as a whole with support bar (10).

4. mould according to claim 1, wherein, described mould also comprises the cushion block (11) that is fixed on the die shoe (4).

5. mould according to claim 4, wherein, described cushion block (11) is fixed on the die shoe (4) by screw.