CN102641986A - Riveting mould of rivet - Google Patents

The invention discloses a riveting mould of a rivet. The riveting mould comprises a lower mould, wherein the lower mould comprises a base and an inlet block; the inlet block is arranged on the base, and the top of the inlet block is provided with a platform surface provided with a supporting rivet; the platform surface is provided with a columnar fixing part, and the fixing part is matched with a locating hole at the bottom surface of the rivet so as to position the rivet; and the minimum distance between the fixing part and the edge of the platform surface is smaller than 1/2 of the maximum distance between any two points at the bottom surface of the rivet. According to the invention, the rivet and a riveting product are prevented from being discarded as useless due to pressing, the qualified rate of the product is improved and the production labor cost is reduced.

The closing-up mould

[technical field]

The invention discloses a kind of closing-up mould, the riveting die of piece fixing rivet is gone in especially a kind of use.

[background technology]

[summary of the invention]

The objective of the invention is to, a kind of closing-up mould is provided.The assurance rivet can not weighed wounded with the riveted joint product and scrapped, and improves the qualification rate of product, reduces the productive labor cost.

The invention provides a kind of closing-up mould: counterdie; This counterdie comprises base and goes into piece; This is gone into piece and is arranged at the base top, and its top has the flat surface of a bucking a rivet; This flat surface is provided with the fixed part of column, and this fixed part cooperates with locating hole on the rivet bottom surface, so that rivet is positioned; The ultimate range at this fixed part to this flat surface edge is less than 1/2nd of any point-to-point transmission ultimate range in rivet bottom surface.

As optional technical scheme, this is gone into tile height and is higher than the rivet height.

As optional technical scheme, this is gone into piece and also comprises sidepiece, is arranged between this pedestal and the level table, and this flat surface is circular, and this sidepiece is a round table surface.

As optional technical scheme, this round table surface indent or evagination.

As optional technical scheme, this flat surface is a regular polygon, and this sidepiece is the polygonal pyramid face.

Compared with prior art, used in the present invention to go into its flat surface of piece less, makes rivet in the fixed part that comes off, be not enough to rest on the flat surface, thereby prevent that rivet and riveted spare from being pressed simultaneously and causing and scrap.

[description of drawings]

Fig. 1 is the riveting die sketch map of prior art.

Fig. 2 goes into the block structure sketch map for of the prior art.

Fig. 3 is the sketch map that the rivet of prior art breaks away from fixed part.

Fig. 4 goes into the block structured first embodiment sketch map for of the present invention.

Fig. 5 is the sketch map that rivet of the present invention breaks away from fixed part.

Fig. 6 goes into the block structured second embodiment sketch map for of the present invention.

Fig. 7 is of the present invention like block structured the 3rd embodiment sketch map.

[specific embodiment]

Combine accompanying drawing and preferred embodiment that the present invention is made further detailed explanation now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.

With respect to prior art, the present invention reduces possibility that rivet drops to flat surface through reducing to carry the flat surface area of rivet, has guaranteed that rivet and riveted joint product can not weighed wounded and scrap, and can improve the qualification rate of product, reduction productive labor cost.

Because can be under the situation that does not break away from characteristic of the present invention by several kinds of current characteristics of mode practical implementation; Thereby it is also to be understood that; Unless otherwise prescribed; Above-mentioned embodiment is not limited to any details that the front is described, but should broadly is regarded as falling in the accompanying claims institute restricted portion, falls into the boundary of claim or the interior whole changes examples and the modification of equivalent of this boundary thus and is all contained by accompanying claims.