CN218775507U

CN218775507U - Bidirectional waist-shaped hole connecting piece forming progressive die

Info

Publication number: CN218775507U
Application number: CN202222399854.4U
Authority: CN
Inventors: 王正成; 汪建国
Original assignee: Shanghai Chenchang Precision Mold Co ltd
Current assignee: Shanghai Chenchang Precision Mold Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-03-31
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a bidirectional waist-shaped hole connecting piece forming progressive die, which comprises stations g1-g20, wherein the station g1 is used for punching a pilot hole and is used for accurate positioning; the station g2 is used for packing and stamping steel seals, and the station g3 is used for punching waist-shaped holes; g4, a station is used for chamfering burrs; g6, hole flanging is carried out at the station; g8, using the station for pier shape; g10 and g12 stations are used for trimming; g14, chamfering the appearance at a station; g16, bending the workpiece; g18, shaping the workpiece; g20, cutting the workpiece out; the rest stations are empty stations. The utility model discloses a to punch a hole structure, hole flanging structure and pier shape structure combination use and be used for reaching two-way waist shape hole connecting piece forming method, fine solution rely on artifical when the single-shot mould repeatedly get the piece and put the positioning error of piece, therefore the higher quality of machining precision is more stable. The labor cost is reduced, and the personnel operation is easier.

Description

Bidirectional waist-shaped hole connecting piece forming progressive die

Technical Field

The utility model relates to a mold design technical field specifically is a two-way waist shape hole connecting piece shaping upgrades mould.

Background

Referring to fig. 4, the bi-directional coupler is an important component of a safety belt of an automobile, and the safety belt is an important device for protecting drivers and passengers when the automobile collides with an obstacle at a high speed, and is a 'life umbrella' for protecting the passengers. The two-way connector plays a very important role in the safety belt and is an important part for tightening the safety belt when the safety belt is in operation.

The traditional forming method adopts a single-process die to carry out multi-process forming, the labor intensity of workers is high, and the product quality is unstable.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a two-way waist shape hole connecting piece shaping upgrades mould.

The utility model provides a following technical scheme: a bidirectional kidney-shaped hole connecting piece forming progressive die comprises stations g1-g20, wherein the station g1 is used for punching a pilot hole and accurately positioning; the station g2 is used for packing and stamping steel seals, and the station g3 is used for punching waist-shaped holes; g4, a station is used for chamfering burrs; g6, hole flanging is carried out at the station; g8, using the station for pier shape; g10 and g12 stations are used for trimming; g14, chamfering the appearance at the station; g16, bending the workpiece; g18, shaping; g20, cutting off the output piece; the rest stations are empty stations.

And furthermore, the g1 station and the g3 station are punching stations and comprise a punching male die and an unloading structure which are arranged on the upper die, and a punching female die arranged on the lower die.

And furthermore, the g6 station is a hole flanging station and comprises a hole flanging male die and a discharging structure which are arranged on the upper die, and a hole flanging female die arranged on the lower die.

Further, the g8 station is a pier-shaped station, and comprises an upper pier-shaped block arranged on the upper die and a lower pier-shaped block arranged on the lower die, the upper pier-shaped block abuts against the floating stop screw, the lower end of the rectangular spring is contacted with an ejector rod, and the lower end of the ejector rod is contacted with the discharging cover plate.

Further, the structure of unloading includes the stripper, the backplate and the nitrogen spring of unloading, and the backplate of unloading is located the upper portion of stripper, and the backplate of unloading and nitrogen spring coupling, and the bottom of stripper is provided with the link plate, and link plate fixed mounting is on the mould, and when the flitch was located the bottommost, it was spacing to it by the link plate.

Compared with the prior art, the utility model provides a two-way waist shape hole connecting piece shaping upgrades mould possesses following beneficial effect:

the method of forming a bi-directional kidney-shaped hole connector, particularly a product similar to that shown in fig. 4, is achieved by using a combination of a punch structure, a burring structure and a pier structure, having: the progressive die has the advantages that the progressive die is capable of improving production efficiency, suitable for mass production, and well solving the problem of repeated positioning errors of taking and placing parts during single-punch die operation by manpower, so that the progressive die is high in machining precision and stable in quality. The labor cost is reduced, and the personnel operation is easier.

Drawings

FIG. 1 is a layout diagram of the present invention;

FIG. 2 is a schematic view of the mold closing of the present invention;

FIG. 3 is a schematic view of the mold opening of the present invention;

FIG. 4 is a schematic view of a product processed by the present invention

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the drawing, a bidirectional kidney-shaped hole connecting piece forming progressive die is shown in fig. 1-4, and the process flow is divided into 20 stations g1-g 20. Wherein: g1, punching a guide hole for accurate positioning; g2, packaging and steel stamping; g3, punching a waist-shaped hole; g4, deburring; g5 is vacant; g6, hole flanging; g7, vacant site; g8, pier shape; g9 vacant site; g10, trimming; g11 is vacant; g12, trimming; g13 is vacant; g14, chamfering the appearance; g15 is vacant; g16, bending; g17 vacancies; g18, shaping; g19 vacant site; g20, cutting off the parts; the 8 hollow stations are mainly used for arranging the inserts and increasing the strength of the template.

The utility model discloses a main utility model point, in addition to the arrangement of each station in the whole processing technology, also lie in that the punching structure is used for punching the corresponding hole on the blank of the material belt part; the hole flanging structure is used for flanging the punched material belt; the pier-shaped structure is used for carrying out pier shape on the material belt after hole flanging, and the three important forming steps are described as follows:

mold-down closing process (fig. 3): the upper die 60 drives the discharging structure 70 to move downwards, when the discharging structure 70 is shown in fig. 3, the discharging plate 703 in the discharging structure 70 contacts the material belt first, and then moves downwards until the material belt contacts the cavity plate 801 in the lower die 80, wherein the nitrogen spring 701 acts on the discharging back plate 702, the discharging plate 703 and the material belt to provide material belt pressing force, so as to ensure that the material belt does not change;

at this time, a punching male die 604 fixed in an upper die fixing plate 603 downwards punches materials and enters a punching female die 804 in a female die plate 801 until the die is completely closed to complete punching, and waist-shaped hole waste materials are removed from waste holes of a lower backing plate 802 and a lower die holder 803;

meanwhile, a hole flanging male die 605 fixed in the upper die fixing plate 603 downwards enters a hole flanging female die 805 in the female die plate 801 from the waist-shaped hole until the die is completely closed, and materials around the waist-shaped hole are turned up by a certain height to complete hole flanging;

meanwhile, an upper pier-shaped block 705 fixed in the discharging plate 703 firstly protects the R angle of the upper end face of the flanging hole, and the flanging hole material belt is downwards formed together with a lower pier-shaped block 806 in a concave template 801 in the lower die 80 until the die is completely closed, and the flanging hole is finished by forming a needed shape of a waist-shaped hole for one circle;

the three associated processes of punching the kidney-shaped hole, flanging the hole and forming the mound are all completed together with the upper die 60 for each punching and die closing process.

Mold up opening process (fig. 4): the upper die 60 is separated from the discharging structure 70 by a discharging height, and the nitrogen spring 701 in the discharging structure 70 still acts on the discharging back plate 702, the discharging plate 703 and the material belt, so that the material belt is ensured not to be changed, and meanwhile, the discharging force is provided, so that the material belt is completely separated from the punching male die 604 and the hole flanging male die 605. The upper die 60 then carries the punching punch 604, the flanging punch 605 in the upper die holder 603 and the discharge structure 70 with the upper pier blocks 705 therein upwards. When the strip of material rises to the designed feed height, the upper die 60 and discharge structure 70 continue to separate upward from the strip of material to the upper apex of the press; at which time the mold is fully open.

And then the material belt is sent by a step pitch from left to right, the previous processes of closing the die (figure 2) and opening the die (figure 3) are carried out again until all stations in the process layout are finished, the product is punched out of the die, and the process is repeated repeatedly, so that the automatic production of the die is realized.

The unloading structures of the punching structure, the hole flanging structure and the pier-shaped structure are shared. The discharging structure 70 further comprises a hanging plate 704, as shown in the figure, the hanging plate 704 is fixed on the side wall of the upper die fixing plate 803 by a side screw, the upper surface of the groove of the hanging plate 704 is hung on the upper surface of the upper die fixing plate 803, and the lower surface of the groove of the hanging plate 704 hooks the lower surface of the opened discharging cover plate 702 to prevent falling.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-way waist shape hole connecting piece shaping upgrades mould which characterized in that: the device comprises stations g1-g20, wherein the station g1 is used for punching a pilot hole and accurately positioning; the station g2 is used for packing and stamping steel seals, and the station g3 is used for punching waist-shaped holes; g4, a station is used for deburring; g6, hole flanging is carried out at the station; g8, using the station for pier shape; g10 and g12 stations are used for trimming; g14, chamfering the appearance at the station; g16, bending the workpiece; g18, shaping the workpiece; g20, cutting off the output piece; the rest stations are empty stations;

the station g1 and the station g3 are punching stations and comprise a punching male die and a discharging structure which are arranged on an upper die and a punching female die which is arranged on a lower die;

the g6 station is a hole flanging station and comprises a hole flanging male die and a discharging structure which are arranged on the upper die and a hole flanging female die arranged on the lower die;

the structure of unloading includes the stripper, the backplate and the nitrogen gas spring of unloading, and the backplate of unloading is located the upper portion of stripper, and just unloads backplate and nitrogen gas spring coupling, and the bottom of stripper is provided with the link plate, and link plate fixed mounting is in last mould, and when the flitch was located bottommost, it was spacing to it by the link plate when.

2. The forming progressive die for the bidirectional kidney-shaped hole connecting piece as claimed in claim 1, wherein: and the g8 station is a pier-shaped station and comprises an upper pier-shaped block arranged on the upper die and a lower pier-shaped block arranged on the lower die.