CN208357621U - A kind of novel header molding core bar - Google Patents

Abstract

The utility model discloses a kind of novel headers to form core bar, including upper core bar and lower core bar, the upper core bar includes plug body, pin head and core bar tail, and pin head is fixedly connected with one end of plug body, the core bar tail is fixedly connected with the other end of plug body, and the first groove is offered on plug body, the top two sides of first groove offer the second groove, the first mounting groove and mounting hole are offered on the pin head, one end of the lower core bar offers the second mounting groove, and the upper end of lower core bar offers third groove, the inside of third groove is arranged in the upper core bar, and the bottom outer surface of upper core bar is in contact with the bottom surface of third groove.The utility model structure is simple, increases straight side length after header punching press, reduces flange dimple shape indent, improves header welding performance, stabilizes product quality.

Description

A kind of novel header molding core bar

Technical field

The utility model relates to header field shaping techniques more particularly to a kind of novel header to form core bar.

Background technique

Header is stamped to form by header stamping die, and in the stamping die, the molding core bar of header is this The more part of core in mold, plays an important role the product quality of header, if Fig. 6 and 7 is exactly traditional forming core The structure chart of bar, but the afflux pipe shaping mould core bar structure in the figure is to use this knot according to there is the design of gap turnup structure The header of the mold processing of structure core bar has defect at two: linear side dimension is smaller after molding flange, there is obvious wine on flange crescent moon Nest shape indent, it is final to influence welding header performance, therefore, it is proposed that a kind of novel header forms core bar.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of novel header proposed Form core bar.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of novel header molding core bar, including upper core bar and lower core bar, the upper core bar includes plug body, core bar Head and core bar tail, and pin head is fixedly connected with one end of plug body, the other end of the core bar tail and plug body is fixed Connection, and the first groove is offered on plug body, the top two sides of first groove offer the second groove, the core The first mounting groove and mounting hole are offered in head, one end of the lower core bar offers the second mounting groove, and lower core bar is upper End offers third groove, and the inside of third groove is arranged in the upper core bar, and the bottom outer surface of upper core bar and third are recessed The bottom surface of slot is in contact.

Preferably, the side of mounting hole is arranged in first mounting groove, and the quantity of mounting hole is several groups.

Preferably, the quantity of first groove is several groups, and several first grooves are equally spaced.

Compared with prior art, the utility model has the beneficial effects that

By the way that new construction molding core bar flange gap is designed as negative clearance in the utility model, flange has obvious de- material Gradient and part squeeze point, and design has the structure of support flange crescent moon on core bar, increase the height of straight flange, avoid the flange moon Occur the case where indent on tooth, is conducive to the quality for improving product.

In conclusion the novel header molding core bar increases straight side length after header punching press, flange dimple is reduced Shape indent improves header welding performance, stabilizes product quality.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of novel header form core bar core bar up and down combine after structural representation Figure；

Fig. 2 be the utility model proposes a kind of novel header form the upper core bar side structure schematic view of core bar；

Fig. 3 be the utility model proposes a kind of novel header form the upper core bar overlooking structure diagram of core bar；

Fig. 4 be the utility model proposes a kind of novel header form the lower core bar side structure schematic view of core bar；

Fig. 5 be the utility model proposes a kind of novel header form the lower core bar overlooking structure diagram of core bar；

Fig. 6 is the side structure schematic view of old core bar；

Fig. 7 is the overlooking structure diagram of old core bar；

Fig. 8 be the utility model proposes a kind of novel header form the partial enlargement structural representation of core bar.

In figure: core bar, 2 lower core bars, 3 plug bodies, 4 pin heads, 5 core bar tails, 6 first grooves, 7 second grooves, 8 on 1 First mounting groove, 9 mounting holes, 10 second mounting grooves, 11 third grooves.

Specific embodiment

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.

Referring to Fig.1-8, a kind of novel header forms core bar, including upper core bar 1 and lower core bar 2, and upper core bar 1 includes core bar Main body 3, pin head 4 and core bar tail 5, and pin head 4 is fixedly connected with one end of plug body 3, core bar tail 5 and plug body 3 The other end be fixedly connected, and the first groove 6 is offered on plug body 3, the top two sides of the first groove 6 offer second Groove 7, the first mounting groove 8 is offered on pin head 4 and mounting hole 9, one end of lower core bar 2 offer the second mounting groove 10, and The upper end of lower core bar 2 offers third groove 11, and the inside of third groove 11 is arranged in upper core bar 1, and outside the bottom end of upper core bar 1 Surface is in contact with the bottom surface of third groove 11.

The side of mounting hole 9 is arranged in first mounting groove 8, and the quantity of mounting hole 9 is several groups, the number of the first groove 6 Amount is several groups, and several first grooves 6 are equally spaced.

Working principle: mould inside progress punching press, core bar master are placed on after upper core bar 1 combining fixation with lower core bar 2 Body 3, pin head 4 and core bar tail 5 are the component parts of upper core bar 1, and the first mounting groove 8,9 second mounting groove 10 of mounting hole are for pacifying The assembly of lower core bar is loaded onto, the setting of the first groove 6 and the second groove 7 increases straight side length after header punching press, reduces Flange dimple shape indent improves header welding performance, stabilizes product quality.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (3)

1. a kind of novel header forms core bar, including upper core bar (1) and lower core bar (2), which is characterized in that the upper core bar It (1) include plug body (3), pin head (4) and core bar tail (5), and one end of pin head (4) and plug body (3) is fixed connects It connects, the core bar tail (5) is fixedly connected with the other end of plug body (3), and offers the first groove on plug body (3) (6), the top two sides of first groove (6) offer the second groove (7), offer the first peace on the pin head (4) Tankage (8) and mounting hole (9), one end of the lower core bar (2) offers the second mounting groove (10), and the upper end of lower core bar (2) It offers third groove (11), the upper core bar (1) is arranged in the inside of third groove (11), and outside the bottom end of upper core bar (1) Surface is in contact with the bottom surface of third groove (11).

2. a kind of novel header according to claim 1 forms core bar, which is characterized in that first mounting groove (8) Side in mounting hole (9) is set, and the quantity of mounting hole (9) is several groups.

3. a kind of novel header according to claim 1 forms core bar, which is characterized in that first groove (6) Quantity is several groups, and several first grooves (6) are equally spaced.