CN1765536A

CN1765536A - Novel punch head

Info

Publication number: CN1765536A
Application number: CNA2004100519344A
Authority: CN
Inventors: 徐更新
Original assignee: SHENZHEN TONGLI FINISH BLANKING PRODUCT CO Ltd
Current assignee: SHENZHEN TONGLI FINISH BLANKING PRODUCT CO Ltd
Priority date: 2004-10-26
Filing date: 2004-10-26
Publication date: 2006-05-03

Abstract

The invention belongs to the punch device of machinery processing area, which applies the new punch pin for cutting the feeder head of punch element. The inventive method comprises a punch pin, a punch-pin holder and a cutting core matched said punch head, whose main improved point is that at least one of said punch pin or cutting core has a magnetic device. The invention can be used in the punch process to absorb the cutting core via magnetic force to be inserted and drawn from the processed element. And the invention can save labor and improve efficiency in the manufacture process.

Description

A kind of novel drift

[technical field]

The invention belongs in the field, punch device of machinery processing field, be particularly useful for the novel drift of shearing by the stamping parts rising head.

[background technology]

In the field of machining, punch press be a kind of be widely used and working (machining) efficiency than higher process equipment.But in some stamping parts process, the operation that the rising head of stamping parts need be excised.In present punching press industry, use commonplace mode, mainly be to come the position shearing position by the shearing core is set in stamping parts at stamping parts, especially during the stamping parts of some container shapes of punching press, majority all uses above-mentioned processing method, for example: the processing mobile phone battery case, steel vessel is all the more so.But there is following shortcoming in this processing mode, need the shearing core before the punching press, in the stamping parts of manually packing into, after punching press finishes, to shear the processing mode that core is poured out by manual again, add and to arrange man-hour the special messenger to operate, therefore in carrying out above-mentioned process, need two people to operate simultaneously under the general situation.Cause processing cost to rise, the efficient of influence processing simultaneously.

[summary of the invention]

The purpose of this invention is to provide a kind of novel drift that can put into and take out the shearing core automatically.

Technical solution of the present invention is: on the basis of the existing drift that constitutes by drift and drift holder and with shearing core that drift is used, adopt at described drift or shear core to have at least and have magnetic devices on one and realize purpose of the present invention.

Described magnetic devices be by on the drift or near magnet, electromagnet are set or to the steel material formation that magnetizes.Described magnetic devices be by shear on the core or near magnet, electromagnet are set or to the steel material formation that magnetizes.Described magnetic devices is permanent magnet or the electromagnet that is installed in the drift holder.Described magnetic devices is to be installed in permanent magnet of shearing in the core or the shearing core of directly being made by permanent magnet.The middle part of described drift holder is provided with the space that is used to install permanent magnet or electromagnet.Be provided with the installing space that is used to install permanent magnet in the described shearing core.

The purposes of above-mentioned a kind of novel drift is to be used for punch process, shears core by magnetic force absorption, and with its by insert in the workpiece and withdrawal process in.

By adopting above-mentioned technical solution, the present invention has obtained following positive technique effect: by with drift or shear in the core any one magnet is set, perhaps magnet is installed at its annex, perhaps directly with drift or shear the structure that core directly uses permanent magnet to make, the shearing core can be adsorbed on by the effect of magnetic force on the drift, and will shear core by the motion of drift and put into stamping parts, do not influence the effect of punching press rising head simultaneously; By adopting the structure on the drift holder, be provided for installing permanent magnet or electromagnet, guaranteed that magnet can play the effect that core is sheared in absorption, the not fragile simultaneously and effect that is easy to change.

[description of drawings]

Fig. 1 is a structural representation of the present invention.

[specific embodiment]

Below in conjunction with accompanying drawing the present invention is further detailed:

As among Fig. 1 being a kind of specific embodiment of the present invention.Be provided with square hole 6 in the drift holder 5, this hole is equipped with permanent magnet 7, and the below of drift holder 5 is fixed with drift 1.Because drift holder 5 is subjected to the effect of permanent magnet 7, and magnetic force is concentrated the end that acts on drift 1.The shearing core 2 of location when being used to cut is placed on the end of drift 1, and is adsorbed on the drift 1 by magnetic force.On the work top of punch press, die shoe 4 is installed, the middle part of die shoe 4 is the corresponding square counterbore of shape and workpiece shape, is used to lay workpiece, and after this workpiece is punch forming, but the upper end also has rising head.This moment, drift 2 just in time was positioned at the top of square counterbore on the die shoe 4.After being placed on this workpiece 3 in the above-mentioned square counterbore, start punch press, drift holder 5 and drift 1 and the shearing core 2 that is adsorbed move downward simultaneously, when the shearing core 2 that is adsorbed on drift 1 end inserts the bottom of workpieces 3, are subjected to stop motion behind the resistance.This moment and shear knife 8 horizontal movements of drift 1 lower surface parallel position, the notch portion of emitting that is enclosed within nose of punch is downcut.Shear knife 8 resets afterwards, and drift holder 5 and drift 1 begin to rise, and core 2 will be sheared by extracting in the workpiece 3 simultaneously by the suction-operated of magnetic force in drift 1 end at this moment.Take out by the manual workpiece 3 that will excise rising head at last.Obviously in above-mentioned process, the process that need manually operate is just put workpiece and take off.With the process that needs at least two people operate simultaneously, be reduced to people's operation.

Be illustrated in figure 2 as another embodiment of the present invention.

The structure of this embodiment, basic identical with a last embodiment, just do not establish square hole 6 and installation permanent magnet 7 wherein in the drift holder 5.Side at drift holder 5 is provided with electromagnet 9, and this electromagnet 9 generates an electromagnetic field after the energising when carrying out process operation, and this electromagnetic field effect is on the drift 1 of drift holder 5 and installation on it, and the magnetic force that drift 1 end is produced adsorbs shearing core 2.Can adapt to the shearing core of Different Weight by adjusting the size in electromagnet magnetic field in this embodiment, just make same punch press, be suitable for the workpiece that varies in weight with the multiple size of processing.Set-up mode at electromagnet has two kinds, is placed near the above-mentioned drift holder 5, does not move up and down with it; A kind of mode in addition is for being fixed on the drift holder, with moving up and down of drift and drift holder.And if use in the mode of the installation permanent magnet among first embodiment, can only come by the quantity that increases permanent magnet, increase magnetic force, adapt to the shearing core of Different Weight.

In the above-described embodiment, in the drift holder and certain permanent magnet of installing, in above-mentioned position, adopt electromagnet or the drift of steel is directly magnetized, can reach the effect in the foregoing description equally.In addition, because the special attribute of magnetic.Above-mentioned permanent magnet, electromagnet and the steel behind magnetic are sheared core, might not be directly installed on drift holder, drift or the shearing core, by the special attribute of utilizing of magnetic, with the above-mentioned magnetic element that has magnetic, comprise that electromagnet, permanent magnet or other have magnetic bodies, be installed in drift near, as long as make magnetic force can act on drift, enable absorption and shear core, can reach above-mentioned technique effect equally.

In the above embodiments, the main design concept of adopting among the present invention is, a kind of can be attached with shearing wicking, can after shear knife is sheared, will shear the drift that wicking is attached and extract once more from workpiece again simultaneously.Therefore be not difficult to release in above-mentioned technical scheme, under same principle, cutting head has magnetic can play drift with the above embodiments same purpose equally.The steel material that uses magnet in this case or have magnetic make to be sheared core.

Above-mentioned in addition have drift or shear core any one when having magnetic, all can be used for shearing the insertion of core in the punch process process or extracting, and in using above-mentioned purposes, produce the significant production process of simplifying, the effect that improves working (machining) efficiency.

Claims

1, a kind of novel drift comprise drift and drift holder and with the shearing core that drift is used, it is characterized in that: described drift or shear core and have at least on and have magnetic devices.

2, a kind of novel drift according to claim 1 is characterized in that: described magnetic devices be by on the drift or near magnet, electromagnet are set or to the steel material formation that magnetizes.

3, a kind of novel drift according to claim 1 is characterized in that: described magnetic devices be by shear on the core or near magnet, electromagnet are set or to the steel material formation that magnetizes.

4, according to claim 1 or 2 any one described a kind of novel drift, it is characterized in that: described magnetic devices is permanent magnet or the electromagnet that is installed in the drift holder.

5, according to claim 1 or 2 any one described a kind of novel drift, it is characterized in that: described magnetic devices is to be installed in permanent magnet of shearing in the core or the shearing core of directly being made by permanent magnet.

6, according to claim 1 or 4 any one described a kind of novel drift, it is characterized in that: the middle part of described drift holder is provided with the space that is used to install permanent magnet or electromagnet.

7, according to claim 1 or 5 any one described a kind of novel drift, it is characterized in that: be provided with the installing space that is used to install permanent magnet in the described shearing core.

8, the purposes of a kind of novel drift according to claim 1 is to be used for punch process, shears core by magnetic force absorption, and with its by insert in the workpiece and withdrawal process in.