CN204747241U - Backboard punching die - Google Patents

Abstract

The utility model provides a backboard punching die. It includes module and lower module, goes up the module and lies in the top of module down, and the surface connections who goes up the module has a drive arrangement, going up the module and including the drift, the drift lower surface is connected with the punching pin that carborundum was made, and the terminal surface is equipped with acupuncture portion under the punching pin, the module includes die body and die case down, and the first through -hole that suits with the die case is offered to the die body, and the second through -hole that suits with the punching pin is offered to the die case, and the die case lower surface is connected with the 2nd drive arrangement. The utility model discloses a when backboard punching die punches a hole to the work piece, also accomplish the turn -ups to the hole, improved efficiency, acupuncture portion punctures and fixes a position the backplate, avoids jumping material, the accuracy of punching a hole.

Description

A kind of backboard punching die

Technical field

The utility model relates to a kind of mould, particularly relates to a kind of backboard punching die.

Background technology

Mould, in industrial production in order to injection moulding, blowing, extrude, various mould and instrument that the method such as die casting or forging forming, smelting, punching press, stretching obtains required product.In brief, mould is used to the instrument of formed article, and this instrument is made up of various part, and different moulds is made up of different parts.It realizes the processing of article profile mainly through the change of institute's moulding material physical state.Punching, refers to and get various figure to adapt to different demands on the material such as steel plate, leather, cloth, plank, specifically have: cross bore, diamond hole, fish scale hole, Eight characters hole, hexagonal hole, punched-plate, elongated hole, four square holes, circular hole, punching expanded metals, delthyrium etc.

As everyone knows, punching die is a kind of diel being used for carrying out workpiece punching.Existing backboard punching die also needs special flanging die to carry out flange to workpiece after punching completes.

Utility model content

For the deficiencies in the prior art, the utility model provides a kind of backboard punching die, and this backboard punching die, to while workpiece punching, also completes the flange to hole; Acupuncture portion punctures backboard and locates, and avoids jumping material, and punching is accurate.

A kind of backboard punching die, comprise module and lower module, described upper module is positioned at the top of described lower module, and the upper surface of described upper module is connected with the first drive unit;

Described upper module comprises drift, and described drift lower surface is connected with the punching pin that carborundum is made, and described punching pin lower surface is provided with acupuncture portion;

Described lower module comprises die body and die case, and described die body offers the first through hole adapted with described die case, and described die case offers the second through hole adapted with described punching pin, and described die case lower surface is connected with the second drive unit.

Carborundum stable chemical performance, anti-wear performance are good, shock resistance, and intensity is large and hardness is very large, and Mohs' hardness is 9.5 grades, is only second to diamond (10 grades) the hardest in the world.

Preferably, the top of described second through hole is provided with the velocity sensor of the speed that can detect when described punching pin enters the second through hole, and described first drive unit, the second drive unit are connected with the control device that the signal detected according to velocity sensor controls described first drive unit, the second drive unit driving force size.

Preferably, described drift outer surface is provided with polytetrafluoroethylene floor.

Preferably, described first through-hole wall is provided with silicon nitride layer.

Preferably, described upper module also comprises upper bolster, and described upper bolster lower surface is provided with punch fixing plate, and described drift is fixed on described punch fixing plate.

Preferably, described upper module also comprises stripper, discharging nail, elastomeric element, upper padding plate is provided with between described upper bolster and described punch fixing plate, described stripper is located at the below of punch fixing plate, described elastomeric element is located between described stripper and described upper bolster, and described discharging nail runs through described upper bolster successively, elastomeric element is connected with described stripper.

Preferably, described die body lower surface is provided with lower bolster, and described lower bolster lower surface is provided with die shoe.

Preferably, described first drive unit, the second drive unit are atmospheric pressure pole.

Preferably, described elastomeric element is spring.

Compared with prior art, the utility model has following beneficial effect: backboard punching die of the present utility model comprises module and lower module, upper module is positioned at the top of lower module, the top of upper module is connected with the first drive unit, upper module comprises drift, drift comprises punching pin body, protrudes formation punching pin downwards and enter block in the middle part of the lower surface of punching pin body; Lower module comprises die body, die case, die body offers the first through hole adapted with die case, first through hole and punching pin body adapt, and die case offers the second through hole entering block with punching pin and adapt, and the below of die case is connected with the second drive unit.Backboard punching die of the present utility model, to while workpiece punching, also completes the flange to hole, improves efficiency; Acupuncture portion punctures backboard and locates, and avoids jumping material, and punching is accurate.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Accompanying drawing indicates as follows: 11-drift, 12-stripper, 13-punch fixing plate, 14-upper padding plate, 15-upper bolster, 16-elastomeric element, 17-discharging nail, 18-first drive unit, 21-die case, 22-die body, 23-lower bolster, 24-die shoe, 25-second drive unit.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in detail.

See Fig. 1, the present embodiment backboard punching die, comprise module and lower module, upper module is positioned at the top of lower module, and the upper surface of upper module is connected with the first drive unit 18; Upper module comprises drift 11, and drift 11 lower surface is connected with the punching pin that carborundum is made, and punching pin lower surface is provided with acupuncture portion; Lower module comprises die body 22 and die case 21, and die body 22 offers the first through hole adapted with die case 21, and die case 21 offers the second through hole adapted with punching pin, and die case 21 lower surface is connected with the second drive unit 25.

In the present embodiment, die case 21 is placed in the first through hole, die case 21 upper surface is concordant with die body 22 upper surface, workpiece is placed in die body 22 upper surface, first drive unit 18 drives upper module to move down, acupuncture portion contact workpiece punctures it, location, owing to eliminating inside workpiece integrated stress, be very easy to punching pin to its punching, due to carborundum, to have anti-wear performance good, shock resistance and the characteristic that intensity is large and hardness is very large, greatly reduce the damage of punching pin in punching course, because wearability is good, greatly reduce the burr produced in punching course, after punching completes, second drive unit 25 drives die case 21 to move down along the first through hole, upper module continues to move down, drift 11 completes the flange to workpiece, after completing, upper module and die case 21 reset, can need to change drift 11 and die case 21 according to actual punching, backboard punching die of the present utility model, to while workpiece punching, also completes the flange to hole, acupuncture portion can position backboard, avoids jumping material, punching accurately, reduce the damage of punching pin in punching course and the burr of generation, according to the needs of punching size, different die cases 21 and drift 11 can be changed, realize one module multiple usages.

The top of the second through hole is provided with the velocity sensor of the speed that can detect when described punching pin enters the second through hole, and described first drive unit 18, second drive unit 25 is connected with the control device that the signal detected according to velocity sensor controls described first drive unit 18, second drive unit 25 driving force size.After punching completes, punching pin continues to move down, velocity sensor detects that punching pin enters the speed of the second through hole and changes into electrical signal transfer to control device, control device is according to this signal of telecommunication, regulate the downward drive force size of the first drive unit 18, second drive unit 25, drift 11 and die case 21 are moved down according to predetermined speed, completes flange.The utility model adopts velocity sensor well known to those skilled in the art and control device, and make turn-up process steady, workpiece is smooth, ensure that product quality.

Drift 11 outer surface is provided with polytetrafluoroethylene floor, and the first through-hole wall is provided with silicon nitride layer.Polytetrafluoroethylene (PTFE) has good mechanical performance, high-lubricity, in turn-up process, can avoid the damage to workpiece and cracking, improve flange quality, silicon nitride is a kind of superhard material, and itself has lubricity, and wear-resistant, for atomic crystal, and it can also resist thermal shock, die case 21 is placed in the first through hole, greatly avoids the wearing and tearing between the first through hole.

Upper module also comprises upper bolster 15, stripper 12, discharging nail 17, elastomeric element 16, upper bolster 15 lower surface is provided with punch fixing plate 13, drift 11 is fixed on punch fixing plate 13, upper padding plate 14 is provided with between described upper bolster 15 and described punch fixing plate 13, described stripper 12 is located at the below of punch fixing plate 13, described elastomeric element 16 is located between described stripper 12 and described upper bolster 15, described discharging nail 17 runs through described upper bolster 15 successively, elastomeric element 16 is connected with described stripper 12, die body 22 lower surface is provided with lower bolster 23, lower bolster 23 lower surface is provided with die shoe 24, first drive unit 18 and the second drive unit 25 are atmospheric pressure pole, elastomeric element 16 is spring.

Work is, first drive unit 18 drives upper bolster 15 to move down, stripper 12 touches workpiece, elastomeric element 16 is compressed, stripper 12 pairs of workpiece compress, acupuncture portion touches workpiece and carries out puncturing and locating, destroy whole workpiece internal stress, facilitate punching pin punching, after punching completes, punching pin continues to move down, velocity sensor detects that punching pin enters the speed of the second through hole and changes into electrical signal transfer to control device, control device is according to the signal of telecommunication, regulate the first drive unit 18, the downward drive force size of the second drive unit 25, drift 11 and die case 21 are moved down according to predetermined speed, complete flange, after completing, upper module and die case 21 reset.

Applicant states, the utility model illustrates detailed construction of the present utility model and technique by above-described embodiment, but the utility model is not limited to above-mentioned detailed construction and technique, namely do not mean that the utility model must rely on above-mentioned detailed construction and technique could be implemented.Person of ordinary skill in the field should be understood that; to any improvement of the present utility model; to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of the utility model product, all drop within protection domain of the present utility model and open scope.

Claims (9)

1. a backboard punching die, is characterized in that, comprises module and lower module, and described upper module is positioned at the top of described lower module, and the upper surface of described upper module is connected with the first drive unit (18);

Described upper module comprises drift (11), and described drift (11) lower surface is connected with the punching pin that carborundum is made, and described punching pin lower surface is provided with acupuncture portion;

Described lower module comprises die body (22) and die case (21), described die body (22) offers the first through hole adapted with described die case (21), described die case (21) offers the second through hole adapted with described punching pin, and described die case (21) lower surface is connected with the second drive unit (25).

2. backboard punching die according to claim 1, it is characterized in that, the top of described second through hole is provided with the velocity sensor of the speed that can detect when described punching pin enters the second through hole, and described first drive unit (18), the second drive unit (25) are connected with the control device that the signal detected according to described velocity sensor controls described first drive unit (18), the second drive unit (25) driving force size.

3. backboard punching die according to claim 1, is characterized in that, described drift (11) outer surface is provided with polytetrafluoroethylene floor.

4. backboard punching die according to claim 1, is characterized in that, described first through-hole wall is provided with silicon nitride layer.

5. backboard punching die according to claim 1, it is characterized in that, described upper module also comprises upper bolster (15), described upper bolster (15) lower surface is provided with punch fixing plate (13), and described drift (11) is fixed on described punch fixing plate (13).

6. backboard punching die according to claim 5, it is characterized in that, described upper module also comprises stripper (12), discharging nail (17), elastomeric element (16), upper padding plate (14) is provided with between described upper bolster (15) and described punch fixing plate (13), described stripper (12) is located at the below of punch fixing plate (13), described elastomeric element (16) is located between described stripper (12) and described upper bolster (15), described discharging nail (17) runs through described upper bolster (15) successively, elastomeric element (16) is connected with described stripper (12).

7. backboard punching die according to claim 1, is characterized in that, described die body (22) lower surface is provided with lower bolster (23), and described lower bolster (23) lower surface is provided with die shoe (24).

8. backboard punching die according to claim 1, is characterized in that, described first drive unit (18), the second drive unit (25) are atmospheric pressure pole.

9. backboard punching die according to claim 6, is characterized in that, described elastomeric element (16) is spring.