CN205763370U - Flange punching die - Google Patents

Abstract

The utility model discloses a flanging punching die, which relates to the field of dies. The proposal mainly includes an upper mold mechanism and a lower mold mechanism arranged up and down oppositely. The upper mold mechanism includes an upper mold plate driven by a cylinder. The lower end surface is fixed with a die, and the lower die mechanism includes a lower template fixed on the base, the lower template is provided with a lower mold frame, which corresponds to the flanging spring pin, and is slidably fitted in the lower mold frame. The stripping die is provided with a spring to lean upwards under the stripping die to realize the function of flanging and punching.

Description

Flanging punching die

technical field

The utility model relates to a flanging punching die, which mainly relates to the field of dies.

Background technique

There is an existing part that needs to be trimmed through a mold and flanging the repaired side, and at the same time it is necessary to punch a hole in the middle of the raw material. Existing molds need at least two pairs of molds, one of which trims and flangs the raw material, and the other performs middle punching. Adopting this scheme, on the one hand, will increase the processing tolerance, on the other hand, it will seriously affect the processing efficiency in the exchange processing of multiple molds.

Utility model content

Aiming at the above deficiencies in the prior art, the utility model proposes a flanging punching die integrated with flanging and punching.

In order to achieve the above object, the technical solution of the present utility model is: comprise upper mold mechanism and lower mold mechanism that are arranged up and down oppositely, described upper mold mechanism comprises the upper die plate driven by cylinder, is fixed with die on the lower end surface of upper die plate, described The middle of the die is vertically slid to fit with a stripping spring pin, and there is a flanging gap between the die and the underside of the stripping spring pin, and an upper die frame is arranged on the outer circumference of the die to fix it on the upper die plate. Flange spring pins are slidably fitted between the dies, and the lower die mechanism includes a lower template fixed on the base, which is provided with a lower mold frame, which corresponds to the flange spring pins. There is a stripping mold slidingly fitted in the frame, a spring is arranged under the stripping mold to lean upward, and a pin hole is vertically set in the middle of the stripping mold, and a punching pin is slidingly fitted in the pin hole, and the lower end of the punching pin It is fixed on the lower template, and the punching pin and the ejection spring pin are set correspondingly.

The technical principle of the utility model is as follows: when processing, firstly, the upper mold mechanism and the lower mold mechanism are in a separated state, and the raw material is placed on the upper end of the lower mold mechanism, and then the upper mold mechanism is driven downward by the driving device. When the raw material is reached, continue to press down, the upper mold frame and the lower mold frame will move relatively, trim the edge around the raw material, the material return spring pin will retreat upwards, the lower mold frame and the die will move relative to each other, and the raw material will be flanged upwards, flanging Located in the flanging gap between the die and the underside of the ejector spring pin, the ejector die moves downward, the punching pin does not move, and the ejector die moves relative to the punching pin to form a punching hole. The operations of flanging and punching are realized in a pair of moulds.

The beneficial effects of the utility model are as follows: adopting the scheme, on the one hand, the machining precision of the workpiece is improved, the machining tolerance is reduced, and at the same time, a pair of molds are used to complete two operations, which can effectively improve the machining efficiency.

Further, a stripping ring is slidably fitted on the outer peripheral surface of the lower mold frame, and the stripping ring is pressed upward by a spring, and the leftovers can be ejected through the stripping ring when trimming is completed.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention For two of the new models, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative labor.

Fig. 1 is the structural representation of separation of the upper mold mechanism and the lower mold mechanism of the utility model embodiment;

Fig. 2 is a structural schematic view of the closing of the upper mold mechanism and the lower mold mechanism of the embodiment of the present invention.

Among them, 1-upper template, 2-upper mold frame, 3-flange spring pin, 4-die, 5-return spring pin, 6-lower mold frame, 7-return mold, 8-punching pin, 9-lower template, 11-stripping ring.

detailed description

The technical solutions in the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only preferred embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example

As shown in Figure 1, the utility model embodiment includes an upper mold mechanism and a lower mold mechanism.

This patrix mechanism comprises the patrix frame 2 that is fixed on the lower end face of patrix 1 and the die 4 that is arranged in patrix frame 2, is provided with flanging spring pin 3 between patrix frame 2 and die 4, in A flanging gap is provided between the flanging spring pin 3 and the lower side of the die 4, and the flanging formed is located here. In the die 4, a spring pin 5 for withdrawing material is vertically provided.

The lower die mechanism includes a lower die frame 6 fixed on the lower die frame 9, a stripping ring 11 is slidably fitted on the outer peripheral surface of the lower die frame 6, and the stripping ring 11 leans upwards through a spring, and slides and fits in the lower die frame 6. There is a stripping mold 7, the bottom of the stripping mold 7 is provided with a spring to push the stripping mold 7 upwards, and a punching pin 8 is vertically arranged in the middle of the stripping mold 7, and the lower end of the punching pin 8 is fixed on the bottom On template 9,

The flanging spring pin 3 and the lower mold frame 6 are correspondingly arranged, and the stripping spring pin 5 and the punching pin 8 are correspondingly arranged.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (2)

1. The flanging punching die is characterized in that it comprises an upper mold mechanism and a lower mold mechanism that are arranged up and down oppositely, and the upper mold mechanism includes a cylinder-driven upper template, and a die is fixed on the lower end surface of the upper template. The middle of the mold is vertically slid to fit with the ejection spring pin, and there is a flanging gap between the die and the underside of the ejection spring pin, and an upper mold frame is arranged on the outer circumference of the die and fixed on the upper template, and the upper mold frame and the concave Flange spring pins are slidably fitted between the molds. The lower mold mechanism includes a lower template fixed on the base. The lower template is provided with a lower mold frame. The lower mold frame corresponds to the flange spring pins. There is a stripping mold in the inner sliding fit, a spring is arranged under the stripping mold to lean upward, and a pin hole is vertically set in the middle of the stripping mold, and a punching pin is slidingly fitted in the pin hole, and the lower end of the punching pin is fixed On the lower template, the punching pins are set correspondingly to the ejection spring pins. 2. The flanging punching die according to claim 1, characterized in that: a stripping ring is slidably fitted on the outer peripheral surface of the lower mold frame, and the stripping ring is pressed upward by a spring.