CN213317169U

CN213317169U - Continuous die forming structure for near-contour large chamfer hole

Info

Publication number: CN213317169U
Application number: CN202021501523.1U
Authority: CN
Inventors: 顾大明
Original assignee: Suzhou Mingfeng Precision Machinery Co ltd
Current assignee: Suzhou Mingfeng Precision Machinery Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-06-01
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a continuous die forming structure of a near-outline large chamfer hole, which comprises a material belt formed in a continuous die and a plurality of external pieces arranged in the material belt and formed by punching; the middle part in material area is equipped with die-cut fashioned main part connecting wire, and the both sides of main part connecting wire are equipped with a plurality of equidistance spaced branch connecting wires respectively, are connected with the external member on each branch connecting wire, are equipped with a plurality of punching a hole in the external member, are located the protruding marginal profile position of external member and are equipped with one-way chamfer in punching a hole, and the outside that is located protruding marginal profile position is equipped with the one-way chamfer plastic complex detachable dog that is used for in the punching a hole of its profile of cladding. The utility model discloses an effective control profile deflection in the chamfer plastic process.

Description

Continuous die forming structure for near-contour large chamfer hole

Technical Field

The utility model belongs to the technical field of the work piece processing, especially, relate to a big chamfer hole modulus of continuity shaping structure of nearly profile.

Background

For the part stamping production, the single-station die has a single structure, the production efficiency is low, the number of stations of the die with a complex structure is small, the stamping forming of a product is not facilitated, the progressive die adopts a press machine to complete multiple middle sub-processes simultaneously by a plurality of different stations in one stamping stroke, and the material belt moves once at a fixed distance after the die completes stamping until the product processing is completed.

The material belt is punched, the shape of a product with the outline is required to be punched nearby the punched hole, and the hole position is easy to deform due to external force after punching.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, and provide big chamfer hole modulus of continuity shaping structure of nearly profile to realize effective control profile deflection among the chamfer plastic process. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the continuous die forming structure with the large chamfer hole and the near outline comprises a material belt formed in a continuous die and a plurality of external pieces arranged in the material belt and formed by punching; the middle part in material area is equipped with die-cut fashioned main part connecting wire, and the both sides of main part connecting wire are equipped with a plurality of equidistance spaced branch connecting wires respectively, are connected with the external member on each branch connecting wire, are equipped with a plurality of punching a hole in the external member, are located the protruding marginal profile position of external member and are equipped with one-way chamfer in punching a hole, and the outside that is located protruding marginal profile position is equipped with the one-way chamfer plastic complex detachable dog that is used for in the punching a hole of its profile of cladding.

Specifically, the inner ends of the branch connecting lines at opposite positions on two sides of the main body connecting line are butted with the same branch point.

Specifically, the progressive die comprises an upper die plate, a lower die plate, a punch head arranged in the upper die plate, a plurality of chamfer top columns arranged in the lower die plate and a push rod arranged in the lower die plate.

Specifically, a stamping part for punching the outline of the outline part is arranged in the upper template.

Specifically, a stop block extending upwards to fill the gap position between the adjacent outer parts is arranged in the lower template.

Compared with the prior art, the utility model discloses big chamfer hole modulus of continuity forming structure of nearly profile's beneficial effect mainly embodies:

arranging a punching station, a chamfering station, an outline punching station and a chamfering and repairing station in the continuous die to realize high-efficiency forming operation in the continuous die; the stop block is matched with the chamfering top column to repair the punched hole of the chamfering, the deformation of the outline of the convex edge of the outer part is controlled in the chamfering process, and excessive deformation in the punching and repairing process is avoided.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a punching structure of the punch in the present embodiment;

FIG. 3 is a schematic view of a punching chamfer forming structure in the present embodiment;

FIG. 4 is a schematic diagram of a punching chamfer structure in the present embodiment;

FIG. 5 is a schematic view of a punching chamfer reshaping structure in the present embodiment;

FIG. 6 is a schematic structural view of the punched hole after chamfering and shaping in the present embodiment;

the figures in the drawings represent:

the method comprises the following steps of 1 material belt, 2 external parts, 21 punching, 3 main body connecting lines, 31 branch connecting lines, 32 branch points, 4 protruding edge profiles, 5 one-way chamfers, 6 stoppers, 7 upper templates, 71 lower templates, 72 punches, 73 push rods, 74 internal grooves, 75 first chamfer top pillars and 76 second chamfer top pillars.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-6, the present embodiment is a continuous die forming structure of a near-contour large chamfer hole, including a material strip 1 formed in a continuous die, and a plurality of external pieces 2 formed in the material strip 1 by punching; the middle part of material area 1 is equipped with die-cut fashioned main part connecting wire 3, the both sides of main part connecting wire 3 are equipped with a plurality of equidistance spaced branch connecting wires 31 respectively, be connected with the external member 2 on each branch connecting wire 31, be equipped with a plurality of 21 that punch a hole in the external member 2, be located the 21 that punch a hole of the protruding marginal profile 4 position of external member 2 and be equipped with one-way chamfer 5, the outside that is located protruding marginal profile 4 position is equipped with its profile of cladding and is used for punching a hole 5 plastic complex detachable dog 6 in 21.

The inner ends of the branch connecting lines 31 located at opposite positions on both sides of the main body connecting line 3 are butted against the same branch point 32.

The progressive die comprises an upper die plate 7, a lower die plate 71, a punch 72 arranged in the upper die plate 7, a plurality of chamfer top columns arranged in the lower die plate 71, and a push rod 73 arranged in the lower die plate 71.

The bottom end of the punch 72 is punched to the molding punched hole 21 in the material belt 1, and an inner groove 74 which is avoiding the position of the punch 72 is arranged in the lower template 71. The upper die plate 7 is provided with a stamping (not shown) for punching the contour of the outer member 2.

The top of the first chamfered top pillar 75 is provided with a chamfer corresponding to the position of the hole of the punch 72 in the circumferential direction.

The lower die plate 71 is provided with a stopper 6 extending upward to fill the gap between adjacent profiles 2. The second chamfered corner post 76 presses the formed chamfer for trimming, and the deformation of the convex edge profile 4 of the profile 2 is adjusted in cooperation with the stop 6.

The continuous die forming method for the large chamfer hole with the near contour comprises the following steps:

1) the material belt 1 is placed in a continuous die, and a punch 72 in an upper die plate 7 presses down to punch and form a plurality of punched holes 21;

2) the inner chamfer top pillar of the lower template 71 is jacked up to chamfer the bottom of the punched hole 21;

3) stamping and forming the external part 2 by stamping parts in the upper template 7;

4) the stop block 6 is plugged into a gap between adjacent external parts 2, and is matched with the chamfer top column to trim the punched hole 21 with the formed chamfer.

And (4) trimming the inner chamfer of the punched hole 21 and expanding the outward expansion angle of the chamfer.

When the embodiment is applied, a punching station, a chamfering station, an outer part punching station and a chamfering and repairing station are arranged in the continuous die, so that the efficient forming operation in the continuous die is realized; the stop block is matched with the chamfering top column to repair the punched hole of the chamfering, the deformation of the outline of the convex edge of the outer part is controlled in the chamfering process, and excessive deformation in the punching and repairing process is avoided.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Big chamfer hole modulus of continuity forming structure of nearly profile, its characterized in that: comprises a material belt formed in a continuous die and a plurality of external pieces arranged in the material belt and formed by punching; the middle part in material area is equipped with die-cut fashioned main part connecting wire, and the both sides of main part connecting wire are equipped with a plurality of equidistance spaced branch connecting wires respectively, are connected with the external member on each branch connecting wire, are equipped with a plurality of punching a hole in the external member, are located the protruding marginal profile position of external member and are equipped with one-way chamfer in punching a hole, and the outside that is located protruding marginal profile position is equipped with the one-way chamfer plastic complex detachable dog that is used for in the punching a hole of its profile of cladding.

2. The continuous die forming structure for the near-contour large chamfer hole according to claim 1, wherein: the inner ends of the branch connecting lines which are positioned at the opposite positions on the two sides of the main body connecting line are butted with the same branch point.

3. The continuous die forming structure for the near-contour large chamfer hole according to claim 1, wherein: the progressive die comprises an upper die plate, a lower die plate, a punch head arranged in the upper die plate, a plurality of chamfer angle top columns arranged in the lower die plate and a push rod arranged in the lower die plate.

4. The near-profile large chamfer hole progressive die forming structure of claim 3, wherein: and a stamping part for stamping the outline of the outline part is arranged in the upper template.

5. The near-profile large chamfer hole progressive die forming structure of claim 3, wherein: and a stop block extending upwards to fill the gap between the adjacent outer parts is arranged in the lower template.