CN214022867U

CN214022867U - Eccentric punching assembly

Info

Publication number: CN214022867U
Application number: CN202022355056.2U
Authority: CN
Inventors: 罗中武; 常雪刚; 范青长; 张国耀
Original assignee: Nanyang Hongyang Zhongtai Machinery Co ltd
Current assignee: Nanyang Hongyang Zhongtai Machinery Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-08-24
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to a stamping device technical field especially relates to an eccentric punching press subassembly, and this subassembly includes flat-plate template, be equipped with in the template one along upper and lower direction extension, columniform recess, and the axis of recess is located the side of the punching press central point of slider, thereby the relative slider of recess is eccentric correspondence, still includes to correspond last mould, the rotation assembly of being connected with the slider and is in lower mould in the recess, still be equipped with in the template and be used for with the lower mould is fixed establishment in the recess, be equipped with two at least lower die cavities around its pivot evenly distributed on the up end of lower mould to one of them lower die cavity corresponds the central point of slider and puts, be equipped with the last die cavity that corresponds from top to bottom with each lower die cavity on the lower terminal surface of last mould. The utility model discloses a large amount of operating time can be saved, work efficiency is improved, economic cost has been reduced.

Description

Eccentric punching assembly

Technical Field

The utility model relates to a stamping device technical field especially relates to an eccentric punching press subassembly.

Background

The punch forming is a processing means which occupies a larger proportion in the field of mechanical manufacturing, and particularly, an external force is applied to a metal blank by a punch press and a die, so that the metal blank generates plastic deformation, and a workpiece with a preset shape and size is finally obtained. In the press process, the most important mechanism, i.e., the die, is the press die, and the quality and accuracy of the press die determine the quality of the workpiece.

In the production of automobile parts, the existing mold is a single-cavity mold, namely one set of mold only has one stamping cavity, the mold works under the guidance of a guide pillar and a guide sleeve which are preassembled on a mold frame, the single-cavity mold needs to be replaced after being used for a certain number of times, the replacement process is time-consuming and needs about three hours, once the cavity of the single-cavity mold is damaged and failed, the whole mold is rejected, and the time and the economic cost are higher in the actual production.

Therefore, there is a need to develop a mold mechanism that can reduce time and cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides an eccentric punching press subassembly to solve the problem that current punching press mechanism time and economic cost are high.

The utility model discloses an eccentric punching press subassembly adopts following technical scheme:

the utility model provides an eccentric punching press subassembly for install on the die carrier and correspond from top to bottom with the slider of punching machine, including the flat template, be equipped with one on the template along upper and lower direction extension, columniform recess, and the axis of recess is located the side of the punching press central point of slider, thereby the relative slider of recess is eccentric correspondence, still includes to correspond last mould, the rotation assembly of being connected with the slider and is in lower mould in the recess, still be equipped with on the template and be used for with the lower mould is fixed mechanism in the recess, be equipped with two at least lower die cavities around its pivot evenly distributed on the up end of lower mould to one of them lower die cavity corresponds the central point of slider and puts, be equipped with the last die cavity that corresponds from top to bottom with each lower die cavity on the lower terminal surface of last mould.

The fixing mechanism comprises a pressing plate which is arranged above the template in parallel, the pressing plate is connected with the template through screws, a through hole is formed in the position corresponding to the lower die, the lower die is in a stepped cylindrical shape with a small upper part and a large lower part, and therefore the pressing plate penetrates through the through hole and is arranged at the small end of the lower die and presses the small end of the lower die downwards in the groove.

The figure on the upper end face of each lower cavity corresponding to the lower die is centrosymmetric relative to the point of the rotating shaft passing through the upper end face.

The lower end of the upper die is provided with at least two positioning blocks extending downwards, and the upper end of the lower die is provided with positioning grooves used for being vertically inserted into the positioning blocks.

And the template is provided with a mounting hole for fixedly connecting with the die carrier.

The utility model has the advantages that: the utility model discloses a lower mould can be at the recess internal rotation, thereby after a pair of last die cavity and the lower die cavity that corresponds slider central point and put punching press inefficacy many times, can rotate the central point that other die cavities made other die cavities to correspond the slider again down and put, the mould is gone up in the synchronous rotation adjustment simultaneously, make the new lower die cavity that goes up the die cavity and correspond the lower die, and then can continue normal punching press operation, mould and lower mould for changing completely of mould, a large amount of operating time has been saved, the work efficiency is improved, simultaneously because the rate of making useless of mould reduces by a wide margin, the investment of enterprise on the mould reduces by a wide margin, economic cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a front view of an embodiment of an eccentric punching assembly according to the present invention;

FIG. 2 is a top view corresponding to FIG. 1;

FIG. 3 is a top view of the die plate;

FIG. 4 is a bottom view of the upper die;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a top view of the lower die;

FIG. 7 is a sectional view taken along line B-B of FIG. 6;

in the figure: 1. the die comprises a die plate, 2, mounting holes, 3, a lower die, 31, a lower die cavity, 32, a positioning groove, 4, an upper die, 41, an upper die cavity, 42, a positioning block, 5, a pressure plate, 6, a compression screw, 7 and a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

The embodiment of the eccentric punching component of the utility model, as shown in fig. 1 to 7, an eccentric punching component is used for being installed on a die carrier and corresponding to the slide block of a punching machine up and down, the die carrier is provided with an upper die 4 seat and a lower die 3 seat, a guide pillar and a guide sleeve are assembled between the upper die 4 seat and the lower die 3 seat, the eccentric punching component comprises a flat template 1, a cylindrical groove 7 extending along the up-and-down direction is arranged on the template 1, the axis of the groove 7 is positioned at the side edge of the punching central point of the slide block, so that the groove 7 corresponds to the slide block eccentrically, the eccentric punching component also comprises an upper die 4 correspondingly connected with the slide block, a lower die 3 rotatably assembled in the groove 7, a fixing mechanism for fixing the lower die 3 in the groove 7 is also arranged on the template 1, two lower die cavities 31 evenly distributed around the rotating shaft of the lower die 3 are arranged on the upper end face of the lower die, and one of the lower die cavities 31 corresponds to the central position of the slide block, the lower end surface of the upper die 4 is provided with upper cavities 41 which vertically correspond to the lower cavities 31.

In other embodiments, a plurality of upper cavities and a plurality of lower cavities may be correspondingly arranged, and each upper cavity and each lower cavity are uniformly distributed around the rotating shaft.

In order to fix the lower die 3 and prevent the lower die 3 from falling off from the die plate 1 in stamping, the fixing mechanism comprises a pressing plate 5 which is arranged above the die plate 1 in parallel, the pressing plate 5 is connected with the die plate 1 through a compression screw 6 and is provided with a through hole at the position corresponding to the lower die 3, the lower die 3 is in a stepped cylindrical shape with a small upper part and a large lower part, and the pressing plate 5 penetrates through the through hole at the small end of the lower die 3 and presses the small end downwards in the groove 7.

In other embodiments, the fixing mechanism may be other limiting mechanisms capable of limiting the lower mold downward in the groove, such as fixing rods inserted into the side walls of the lower mold, and the fixing rods are detachably and fixedly connected with the mold plate.

In order to make the orientations of the special-shaped cavities at all parts after the special-shaped cavities rotate along with the lower die 3 the figures of the upper end surface of each lower cavity 31 corresponding to the lower die 3 are in central symmetry relative to the point of the rotating shaft passing through the upper end surface, namely the lower cavities 31 on the lower die 3 are distributed around the rotating shaft of the lower die 3 clockwise or anticlockwise.

In order to further position the upper mold 4 and the lower mold 3, the lower end of the upper mold 4 is provided with two positioning blocks 42 extending downwards, and the upper end of the lower mold 3 is provided with positioning grooves 32 for vertically inserting and corresponding to the positioning blocks 42.

In other embodiments, the positioning block and the positioning groove can be provided in multiple pairs.

In order to facilitate the fixing and positioning of the template 1, the template 1 is provided with a mounting hole 2 for being fixedly connected with a mold base, and the mounting hole 2 can be used for a guide pillar on the mold base to pass through and can also be fixed on the mold base through a bolt or a screw.

Go up mould 4 can be through predetermineeing the bolt that distributes around the pivot of lower mould 3 and with the last mould 4 seats bolted connection of die carrier to go up mould 4 and can correspond lower mould 3 and rotate certain angle after-mounting again on last mould 4 seats from last mould 4 seats after pulling down, or also can adopt other mounting structure that can realize above-mentioned effect, clamp etc. like jack catch, draw-in groove.

When the punching machine is used specifically, the die set is correctly installed on the punching machine, wherein the upper die 4 is correspondingly installed on the upper die 4 seat of the die set, the template 1 is correspondingly installed on the lower die 3 seat of the die set, then the lower die 3 and the pressing plate 5 are correctly installed in sequence, punching operation can be carried out in a pair of die cavities in the punching center of the punching machine at the moment, when the pair of die cavities fails, the punching machine is stopped, the lower die 3 and the upper die 4 are correspondingly rotated, a pair of new die cavities is positioned in the punching center of the punching machine, the punching operation can be continuously carried out at the moment, and the upper die 4 and the lower die 3 are additionally replaced until all the die cavities fail.

The utility model discloses a lower mould 3 can be at recess 7 internal rotations, thereby after a pair of last die cavity 41 that corresponds slider central point and lower die cavity 31 punching press inefficacy many times, 3 make other die cavities correspond the central point of slider again and put under can rotating, mould 4 in the synchronous rotation adjustment simultaneously, make the new lower die cavity 31 that goes up die cavity 41 and correspond lower mould 3 new, and then can continue normal punching press operation, mould 4 and lower mould 3 for changing completely of mould, a large amount of operating time has been saved, the work efficiency is improved, simultaneously because the useless rate of mould reduces by a wide margin, the investment of enterprise on the mould reduces by a wide margin, economic cost is reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an eccentric punching press subassembly for install on the die carrier and correspond its characterized in that from top to bottom with the slider of punching machine: including flat template, be equipped with one on the template along upper and lower direction extension, columniform recess, and the axis of recess is located the side of the punching press central point of slider, thereby the relative slider of recess is eccentric correspondence, still include the last mould of being connected with the slider corresponds, the rotation assembly is in lower mould in the recess, still be equipped with on the template and be used for with the lower mould is fixed establishment in the recess, be equipped with two at least lower die cavities around its pivot evenly distributed on the up end of lower mould to the central point that one of them lower die cavity corresponds the slider puts, be equipped with the last die cavity that corresponds from top to bottom with each lower die cavity on the lower terminal surface of last mould.

2. An eccentric punching assembly according to claim 1, wherein: the fixing mechanism comprises a pressing plate which is arranged above the template in parallel, the pressing plate is connected with the template through screws, a through hole is formed in the position corresponding to the lower die, the lower die is in a stepped cylindrical shape with a small upper part and a large lower part, and therefore the pressing plate penetrates through the through hole and is arranged at the small end of the lower die and presses the small end of the lower die downwards in the groove.

3. An eccentric punching assembly according to claim 1, wherein: the figure on the upper end face of each lower cavity corresponding to the lower die is centrosymmetric relative to the point of the rotating shaft passing through the upper end face.

4. An eccentric punching assembly according to any of claims 1-3, wherein: the lower end of the upper die is provided with at least two positioning blocks extending downwards, and the upper end of the lower die is provided with positioning grooves used for being vertically inserted into the positioning blocks.

5. An eccentric punching assembly according to claim 1, wherein: and the template is provided with a mounting hole for fixedly connecting with the die carrier.