CN207325719U - A kind of decompressor - Google Patents

Abstract

The utility model discloses a kind of decompressor, including upper die and lower die, the lower die includes die holder and is respectively equipped with a through hole on the upward cavity plate groove of the die holder upper shed and multiple cavity plates, each cavity plate；The cavity plate is equipped with the passage being connected with the through hole, and an elastic telescopic component is equipped with the passage, and the elastic telescopic component includes a motion bar and the return unit being connected with the motion bar, and described motion bar one end is stretched in through hole.The utility model is by setting multiple cavity plates with different bore through holes, in punching operation, the plate of different-thickness can be punched out by only needing to change the cavity plate in cavity plate groove, and use scope is wide, can prevent the waste material in through hole from springing back additionally by elastic telescopic component is set.

Description

A kind of decompressor

Technical field

The utility model belongs to stamping equipment technical field, more particularly, to a kind of decompressor.

Background technology

Punching press, is that depended on pressure machine and mould apply external force to plate, band, tubing and section bar etc., is allowed to produce plasticity change Shape or separation, so that the workpiece of shape and size needed for obtaining（Stamping parts）Forming and machining method, decompressor be punching press life Essential technological equipment, quality, production efficiency and the production cost of stamping parts etc. are produced, is had directly with mold design and manufacture Connect relation.

When being punched out with decompressor to plate, sheet thickness difference requires the fit clearance size of punch and matrix Difference, but existing decompressor is not easy to be punched out the plate of different-thickness processing due to the restriction of self structure, In addition in punching process the infringement of plate is in turn resulted in often there is a situation where scraps springing back.

Utility model content

The utility model is in order to overcome the deficiencies of the prior art and provide a kind of decompressor for preventing scraps springing back.

To achieve these goals, the utility model uses following technical scheme：A kind of decompressor, including upper mold is with Mould, the lower die include die holder and arranged on the upward cavity plate groove of the die holder upper shed and multiple cavity plates, and described is each recessed A through hole is respectively equipped with mould；The cavity plate is equipped with the passage being connected with the through hole, and an elasticity is equipped with the passage Telescopic component, the elastic telescopic component include a motion bar and the return unit being connected with the motion bar, the motion bar one End is stretched in through hole.The utility model can be placed equipped with difference by setting cavity plate groove on die holder in the cavity plate groove The cavity plate of the through hole of bore, since the bore of through hole is different, so the fit clearance between punch-pin and multiple cavity plates is also different, into And operation need to can be only punched out to the plate of different-thickness by the cavity plate replaced in cavity plate groove, use scope is wide, and more It is simple, convenient to change process；In punch process, waste material is first punched and is moved into through hole by punch-pin from plate, activity Bar moves under the pressure effect of punch-pin to fixing piece direction, and the top of motion bar is inconsistent with the side wall of punch-pin all the time, when convex Start uplink during a certain position that the bottom of mould is moved under motion bar, motion bar is with regard to that will can be fitted on punch-pin at this time Waste material extrude, and then realize the effect of anti-scraps springing back.

Further, a fixing piece is bolted with the vias inner walls, the motion bar is arranged in the fixing piece simultaneously It is connected to by a return unit on the fixing piece；The fixing piece is bolted on the through-hole wall；Motion bar passes through reset Part is connected in fixing piece, so can left and right action, in addition fixing piece is screwed onto on through-hole wall, is easily installed, is replaced.

Further, the motion bar both ends are extend out to outside the passage respectively, and the cavity plate groove sidewall is equipped with and institute State the matched limit hole of motion bar；When placing punch-pin, limit can just play punch-pin by the cooperation of motion bar and limit hole Position effect, effectively prevent punch-pin and rotates in punch process, ensure that punching quality.

The punch-pin includes the pressing part that can be embedded in the through hole, a diameter of 30mm of pressing part, the cavity plate number Mesh is three, and the through-hole diameter on three cavity plates is respectively 30.42-30.6mm, 30.54-30.80mm, 30.70-21mm； Since the diameter of through hole on three cavity plates is different, so when three cavity plates coordinate with punch-pin respectively, its gap between punch-pin Size is also different, and then the hole of diameter 30mm can be punched out on the plate of different-thickness.

Further, the through-hole diameter on three cavity plate is respectively 30.5mm, 30.7mm, 30.9mm；Punch-pin is coordinated to make With the hole that diameter 30mm can be punched out on the plate of different-thickness.

Further, the cavity plate groove bottom wall is equipped with blanking hole, and the die holder is equipped with side and the cavity plate groove The open slot being connected, the open slot opposite side are extended on the die holder side；What plate produced in punch process Waste material can be discharged directly from blanking hole, and then prevent the situation of through hole in blocking of waste materials cavity plate to occur, and ensure that punching Journey is smoothed out,, only need to be by a straight-bar insertion opening groove, then when cavity plate to be replaced additionally by open slot is set Pressing straight-bar can be ejected cavity plate by lever principle, one end of straight-bar out of cavity plate groove, and then easy to the replacement of cavity plate.

Further, the die holder is equipped with the first inclined plane；Incline arranged on described first the cavity plate channel opening part On inclined-plane；The open slot side is extended in first inclined plane；By setting the first inclined plane on die holder, and it is recessed The opening portion of die cavity upper end is arranged on first inclined-plane, so when cavity plate is placed in cavity plate groove, the upper end of cavity plate It is protruding on first inclined-plane so that replacing cavity plate becomes more convenient.

Further, the upper mold seat is equipped with a briquetting that can be moved up and down；Plate is after punching technology, in hole week Easily there is rough region in the region enclosed, and by briquetting and coordinating for die holder can flatten these uneven regions, And then it ensure that the planarization of plate.

In conclusion the utility model is by setting multiple cavity plates with different bore through holes, in punching operation, only Processing can be punched out to the plate of different-thickness by needing to change the cavity plate in cavity plate groove, and use scope is wide, and by setting bullet Property telescopic component can prevent the waste material in through hole from springing back.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the lower die top view of the utility model.

Fig. 3 is the cavity die structure schematic diagram of the utility model.

Fig. 4 is along line A-A sectional view in Fig. 2.

Fig. 5 is enlarged drawing at A in Fig. 4.

Embodiment

It is real below in conjunction with the utility model in order to make those skilled in the art be better understood from the utility model The attached drawing in example is applied, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.

As shown in Figs. 1-5, a kind of decompressor, including upper die and lower die, the upper mold include upper mold seat 1 and arranged on described Punch-pin 2 on upper mold seat, the lower die includes the die holder 3 in rectangular parallelepiped structure, arranged on the 3 fovea superior die cavity 31 of die holder and The shape of multiple cavity plates 4, the cavity plate shape and cavity plate groove is engaged, and the size of each cavity plate is all, more A cavity plate can be individually placed in cavity plate groove, and the upper surface of cavity plate and the upper surface of die holder are in same level Interior, specifically, the cavity plate number is three, the opening of the cavity plate groove is on the upper surface of die holder, 3 cavity plates 4 On be respectively equipped with one and the matched cylinder through hole 41 of the punch-pin 2, the bore of three through holes 41 is different, when punch-pin respectively with When 3 cavity plates coordinate, gap size between the two is different, and then only need to can be not by replacing cavity plate in punching operation Punching operation is carried out on the plate of stack pile.Specifically, the punch-pin 2 is equipped with the pressing part 21 that can be embedded in the through hole, A diameter of 30mm of the pressing part 21, the diameters of 3 through holes 41 are respectively 30.42-30.6mm, 30.54-30.80mm, 30.70-21mm, it is preferred that the diameter of 3 through holes 41 is respectively 30.5mm, 30.7mm, 30.9mm, when 3 cavity plates are distinguished Can be respectively 3mm in thickness, punching hole diameter is the hole of 30mm on the plate of 4mm, 5mm when coordinating with punch-pin.

The cavity plate is equipped with the horizontal channel 42 being connected with the through hole, and an elastic telescopic group is equipped with the passage Part 5, specifically, the elastic telescopic component includes a fixing piece 51 and motion bar 52, specifically, the fixing piece is in circle for one The metalwork that barrel structure is set, the outer surface of metalwork are equipped with external screw thread, and the vias inner walls are equipped with internal thread, by interior Fixing piece fixed link can be installed in through hole by externally threaded engagement, and the motion bar is arranged in metalwork and multiple by one Position part 53 is connected on the inner wall of the metalwork, specifically, the return unit is a volute spring, volute spring is sheathed on activity On bar, and one end is connected with motion bar, and the other end is connected with metalwork inner wall, and one end of the motion bar extend out to through hole 41 Interior and end is hemispherical dome structure, and in punch process, waste material is first punched and is moved into through hole by punch-pin from plate, Motion bar moves under the pressure effect of punch-pin to metalwork direction, and the top of motion bar is inconsistent with the side wall of punch-pin all the time, Start uplink when a certain position that the bottom of punch-pin is moved under motion bar, motion bar is convex with regard to that will can be fitted at this time Waste material on mould extrudes, and then realizes the effect of anti-scraps springing back.

Further, the length of the motion bar 52 is more than the length of passage, and the both ends of motion bar extend out to described respectively Outside passage, 31 side wall of cavity plate groove is equipped with limit hole 34 matched with the motion bar, when placing punch-pin, passes through work The cooperation of lever and limit hole just can play position-limiting action to punch-pin, effectively prevent punch-pin and rotate in punch process, It ensure that punching quality.

Further, 31 bottom wall of cavity plate groove is equipped with blanking hole 32, and the blanking hole top end opening is arranged on cavity plate The center position of the bottom wall of groove, bottom end opening are arranged on the lower surface of die holder, and the bore of the blanking hole is 6mm, plate The waste material for expecting to produce in punch process can be discharged directly from blanking hole, and then be prevented because of the through hole in blocking of waste materials cavity plate And the situation generation for causing punching operation not continue.

For the ease of cavity plate is taken out from cavity plate groove, an open slot 33, the open slot are set on the die holder 3 Side is connected with the cavity plate groove 31, and 33 opposite side of open slot is extended on the side of the die holder, and then works as and want When cavity plate is taken out out of cavity plate groove, a straight-bar only need to be taken, and by straight-bar insertion opening groove, press down on straight-bar and cause straight-bar One end and cavity plate bottom surface it is inconsistent, and then cavity plate can be ejected out of cavity plate groove by lever principle, and then easy to recessed The replacement of mould.

In order to which further easy to which cavity plate is taken out from cavity plate groove, the first inclination is equipped with the side of the die holder 3 Face 32；31 opening portion of cavity plate groove is arranged in first inclined plane, and 33 side of open slot extends to described first In inclined plane, the setting of the first inclined plane so that when cavity plate is placed in cavity plate groove, the top section of cavity plate is protruding to first Above inclined plane, and then it is easy to taking and placing cavity plate.

Preferably, the cavity plate 4 be equipped with matched second inclined plane of first inclined plane, due to set cavity plate When, be not easy to motion bar can align with the limit hole in cavity plate groove sidewall and then slowed down replacement speed, can and by recessed Set on mould with matched second inclined-plane of the first inclined plane, and then when placing cavity plate, only need to by the second inclined-plane on cavity plate and After the first inclined plane alignment on die holder, so that it may which ensureing the end of motion bar can be inserted into limit hole, and then accelerate replacement The speed of cavity plate.

Further, the actuator 12 that the upper mold seat 1 is equipped with a briquetting 11 and drives the briquetting to move up and down, tool Body, the actuator 12 is the hydraulic cylinder that an in the market is directly bought, and the briquetting is to be connected in hydraulic cylinder piston rod top A rectangular parallelepiped structure metal derby, since plate is after punching technology, the region around its hole easily occurs uneven Region, and briquetting can carry out these uneven regions under the action of hydraulic cylinder pressing processing, and then ensure that plate Planarization.

Obviously, described embodiment is only the part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained without making creative work Every other embodiment, should all belong to the scope of the utility model protection.

Claims (6)

1. a kind of decompressor, including upper die and lower die, the upper mold includes upper mold seat（1）With it is convex on the upper mold seat Mould（2）, it is characterised in that：The lower die includes die holder（3）, arranged on the die holder（3）The upward cavity plate groove of upper shed （31）And multiple cavity plates（4）, the cavity plate（4）On be respectively equipped with a through hole（41）;Each cavity plate is equipped with to be led to described The passage that hole is connected（42）, the passage is interior to be equipped with an elastic telescopic component（5）, it is movable that the elastic telescopic component includes one Bar（52）The return unit being connected with the motion bar（53）, described motion bar one end stretches to through hole（41）It is interior.

2. decompressor according to claim 1, it is characterised in that：The passage（42）A fixing piece is bolted with inner wall （51）, the motion bar（52）It is arranged in the fixing piece and passes through return unit（53）It is connected on the fixing piece.

3. decompressor according to claim 2, it is characterised in that：The motion bar（52）Both ends extend out to described respectively Passage（42）Outside, the cavity plate groove（31）Side wall is equipped with and the matched limit hole of the motion bar（34）.

4. decompressor according to claim 2, it is characterised in that：The punch-pin（2）Including that can be embedded in the through hole Pressing part（21）, the pressing part（21）A diameter of 30mm, the cavity plate（4）Number is three, on the cavity plate described in three Through hole（41）Diameter is respectively 30.42-30.6mm, 30.54-30.8mm, 30.7-21mm.

5. decompressor according to claim 4, it is characterised in that：Three cavity plates（4）On through hole（41）Diameter Respectively 30.5mm, 30.7mm, 30.9mm.

6. decompressor according to claim 4, it is characterised in that：The cavity plate groove（31）Bottom wall is equipped with blanking hole （32）, the die holder（3）It is equipped with side and the cavity plate groove（31）The open slot being connected（33）, the open slot（33） Opposite side is extended on the die holder side.