CN202239285U

CN202239285U - Stretching threading mechanism for stamping

Info

Publication number: CN202239285U
Application number: CN2011203915019U
Authority: CN
Inventors: 姚小春
Original assignee: Dongguan Vision Tool & Mould Co Ltd
Current assignee: VISION TOOL & MOULD CO., LTD.
Priority date: 2011-10-14
Filing date: 2011-10-14
Publication date: 2012-05-30
Anticipated expiration: 2021-10-14

Abstract

The utility model discloses a stretching threading mechanism for stamping, and relates to an ironware stamping die. The stretching threading mechanism comprises an upper die base, a splint, a stripper plate, a lower template, a lower subplate, a lower die base, a threading plunger chip, a lower die insert, a threading inner top and a spring, wherein the upper surface of the lower template is provided with a counter bore A, the lower die insert is fixed in the counter bore A of the lower template, a counter bore B and a counter bore C are respectively arranged in the positions at the lower subplate and the lower die base, which correspond to the counter bore A up and down, the spring is arranged in the counter bore C, the threading inner top is arranged vertically, the lower end of the threading inner top passes through the counter bore B to push against the spring, and the upper end of the threading inner top is positioned in the lower die insert; and the lower end socket of the threading plunger chip is made into a right-angle inflection from a vertical plane to a horizontal plane, and a convex needle is arranged at the center of the horizontal plane of the lower end socket of the threading plunger chip. During threading, metal plate material is tightly pressed by the stripper plate, stretching threading molding is adopted in the threading process, a threading edge is prevented from cracking effectively due to material flowing, and the threading inner hole is high in smooth finish; and the work is reliable, and the yield is high.

Description

A kind of punching press is with the mechanism of sprouting that stretches

Technical field

The utility model relates to the hardware stamping mould, refers to that especially a kind of punching press is with the mechanism of sprouting that stretches.

Background technology

The hardware stamping mould is widely used in the auto parts and components manufacturing, and many auto parts and components are through the hardware stamping moulding.

In the technology, especially to automobile moulding class mould, the regular cracking that sprouts when producing product causes product defective now, and percent defective is high.

Summary of the invention

The utility model is intended to overcome the above-mentioned deficiency of prior art, provides a kind of punching press with the mechanism of sprouting that stretches.The cracking on limit that can effectively prevent to sprout, yields is high, and makes the endoporus that sprouts highly polished, and working stability is reliable.

For this reason, a kind of punching press of the utility model mechanism of sprouting with stretching adopts following technical scheme:

A kind of punching press of structure the utility model is with the mechanism of sprouting that stretches; Comprise that upper bolster, clamping plate, stripper plate, lower bolster, lower bolster, die shoe, the drift that sprouts, counterdie are gone into son, interior top and spring sprout; Upper bolster, clamping plate, stripper plate, lower bolster, lower bolster and die shoe set gradually from top to bottom, and the lower bolster pad is between lower bolster and die shoe, and clamping plate and upper bolster install; The drift that sprouts is installed in clamping plate, opens the system through hole on the stripper plate and lets the drift that sprouts pass from top to bottom; The upper surface of lower bolster is opened system A counterbore; Counterdie is gone into son and is fixed in the said A counterbore of lower bolster, opens system B counterbore with the relative up and down position of said A counterbore on the lower bolster, opens system C counterbore with the relative up and down position of said B counterbore on the die shoe; In the C counterbore, be installed in the flexible spring of vertical direction; The top is vertical in sprouting is provided with, and the lower end on the interior top of sprouting passes the B counterbore and spring offsets, and the upper end of pushing up in sprouting is positioned at counterdie and goes into son; The lower end of drift of sprouting is processed the right angle inflection from the vertical plane to the horizontal plane, is shaped on the protruding pin of a vertical direction in the center of the said horizontal plane of the drift lower end that sprouts.

The beneficial effect of the utility model is: one of which; When sprouting, stripper plate kills the panel beating material, drift the continuing to move down and begin to sprout along with punch press of sprouting; Difference with the prior art is in the process of sprouting, to adopt the moulding of sprouting that stretches; Have material and flow, effectively prevented the cracking on limit that sprouts, and the fineness of the endoporus that effectively guaranteed to sprout.Its two, it is highly stable that the panel beating material is sprouted, reliable operation, yields is high.Its three, simple in structure, cost is lower.

Description of drawings

Fig. 1 is the utility model sketch map;

Fig. 2 is the pilot process sketch map that sprouts of the utility model.

Among the figure:

1, upper bolster; 2, clamping plate; 3, stripper plate; 4, lower bolster; 5, lower bolster; 6, die shoe; 7, the drift that sprouts; 8, counterdie is gone into son; 9, the interior top of sprouting; 10, spring; 11, panel beating material.

The specific embodiment

Below, introduce the specific embodiment of the utility model in conjunction with accompanying drawing.

Like Fig. 1-shown in Figure 2; A kind of punching press of the utility model is with the mechanism of sprouting that stretches; Comprise that upper bolster 1, clamping plate 2, stripper plate 3, lower bolster 4, lower bolster 5, die shoe 6, the drift 7 that sprouts, counterdie are gone into son 8, interior top 9 and spring 10 sprout; Upper bolster 1, clamping plate 2, stripper plate 3, lower bolster 4, lower bolster 5 and die shoe 6 set gradually from top to bottom, and lower bolster 5 fills up in 6 of lower bolster 4 and die shoes, and clamping plate 2 install with upper bolster 1; The drift 7 that sprouts is installed in clamping plate 2, opens the system through hole on the stripper plate 3 and lets the drift 7 that sprouts pass from top to bottom; The upper surface of lower bolster 4 is opened system A counterbore; Counterdie is gone into son 8 and is fixed in the said A counterbore of lower bolster 4, opens system B counterbore with the relative up and down position of said A counterbore on the lower bolster 5, opens system C counterbore with the relative up and down position of said B counterbore on the die shoe 6; In the C counterbore, be installed in the flexible spring 10 of vertical direction; Top 9 vertically is provided with in sprouting, and the B counterbore is passed with spring 10 offsets in the lower end on top 9 in sprouting, and the upper end on top 9 is positioned at counterdie and goes into sub 8 in sprouting; The lower end of drift 7 of sprouting is processed the right angle inflection from the vertical plane to the horizontal plane, is shaped on the protruding pin of a vertical direction in the center of the said horizontal plane of drift 7 lower ends that sprout.

The course of work of the utility model is narrated as follows:

In the process that patrix moves downward, during the strip of contact panel beating material 11, stripper plate 3 is pushed down material earlier; Along with punch press continue move down; Top 9 was to pressing down in the pre-punched hole that the drift 7 that sprouts passes strip will sprout, when sprouting drift 7 contact strips with the form downward hole flanging of material to stretch, after hole flanging is accomplished along with moving on the punch press; In sprouting will sprout smoothly under the effect of spring 10 and partly eject in top 9, take off material smoothly.Material carries out material and flows along with the direction of motion of the drift 7 that sprouts in the process of hole flanging; The hole flanging mechanism forming process of prior art is when sprouting the drift contact material, to utilize the pin that sprouts earlier strip not being had under the situation that material flows the moulding of material distending, because of there not being material compensation, causes ftractureing along with the hole of distending increases the material attenuation; And the utility model has material to flow in stretching hole flanging process; Hole flanging can not ftractureed, and hole flanging inside is more smooth, moulding is more stable.

This embodiment is said only to be the preferred embodiment of the utility model, is not that the technical scope of the utility model is done any restriction.The technical staff of the industry; Under the inspiration of present technique scheme; Can make some distortion and revise, every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme above any modification, equivalent variations and modification that embodiment did.

Claims

1. a punching press is with the mechanism of sprouting that stretches; Comprise that upper bolster, clamping plate, stripper plate, lower bolster, lower bolster, die shoe, the drift that sprouts, counterdie are gone into son, interior top and spring sprout; Upper bolster, clamping plate, stripper plate, lower bolster, lower bolster and die shoe set gradually from top to bottom, and the lower bolster pad is between lower bolster and die shoe, and clamping plate and upper bolster install; The drift that sprouts is installed in clamping plate, opens the system through hole on the stripper plate and lets the drift that sprouts pass from top to bottom; It is characterized in that: the upper surface of lower bolster is opened system A counterbore; Counterdie is gone into son and is fixed in the said A counterbore of lower bolster, opens system B counterbore with the relative up and down position of said A counterbore on the lower bolster, opens system C counterbore with the relative up and down position of said B counterbore on the die shoe; In the C counterbore, be installed in the flexible spring of vertical direction; The top is vertical in sprouting is provided with, and the lower end on the interior top of sprouting passes the B counterbore and spring offsets, and the upper end of pushing up in sprouting is positioned at counterdie and goes into son; The lower end of drift of sprouting is processed the right angle inflection from the vertical plane to the horizontal plane, is shaped on the protruding pin of a vertical direction in the center of the said horizontal plane of the drift lower end that sprouts.