CN2292621Y - Sheet die with three-layer die holder structure - Google Patents

Abstract

The utility model relates to a sheet die with a three-layer die holder structure, which is a sheet die whose major parts, such as a male die, a female die, a male die fixing plate, etc. are made of thin steel plates. A universal die set adopts a three-layer die holder structure; besides an upper die holder (1) for installing the male die and a lower die holder (2) for installing the lower die, a base (3) is also arranged on the lower side of the lower die holder; a plate turnover mechanism is arranged between the base and the lower die holder; the relative motion between the base and the lower die holder during punching is used for driving the female die to be padded during the punching; when ride is returned after the punching is finished, the plate turnover mechanism causes parts punched to slide out the die. The utility model provides a simple die with economic manufacture, high speed, convenient operation, accuracy and high efficiency.

Description

The thin plate punch die of three layers of die holder structure

The utility model relates to a kind of sheet metal blanking mould of making major parts such as punch, die, punch retainer with sheet metal, common name thin plate punch die.

In the prior art, the structure of thin plate punch die early be the upper and lower template that will make with sheet metal an endlap together, be tightened to the clamping plate shape with the method for spot welding or riveted joint, claim the clamping plate punch die again.Operator's palpus one hand-held mould when the thin plate punch die of this structure uses, a hand-held punching material for the treatment of, operation, discharging inconvenience, production efficiency is very low, is only applicable to the production of a small amount of part.A kind of improved structure is seen total the 35th phase of " mould communication " in 1982 the 4th phase, this structure punch and punch retainer are fixed on the upper bolster of mould bases, die is lifted on the punch retainer by four discharging screws, is led by two little guide pillars between punch, the die.One discharging backing plate is arranged on the die shoe, under spring action, upwards dig behind the stamping-out, make the part (or waste material) that sweeps away skid off punch die along the inclined-plane.The thin plate punch die of this structure is because the spacing between the punch, die is less, observes feeding difficulty, operation inconvenience when the little guide pillar that adds guiding makes punching press; In the stamping-out process, plate and punch, the die big distance that descends simultaneously, plate moves easily, and the location is inaccurate, influences production efficiency and towards the part quality.

The purpose of this utility model is to provide a kind of improved thin plate punch die, and it can be in that to keep the thin plate punch die to make simple and easy, economical, simultaneously fast, can be the same with the ordinary construction blanking die easy to operate, accurate positioning and efficiently.

The utility model purpose is achieved in that mould adopts the structure of three layers of die holder, has by the upper bolster of adorning punch, by the die shoe of adorning die except that the same with common punch die, is provided with base below die shoe.Upper and lower die holder is led by guide pillar, there is an oblong aperture in the central authorities of die shoe, have the cushion block of same size to match with it in the central authorities of base, and a hinged turnover panel is arranged on this cushion block, its front end is lifted by die shoe at the off working state turnover panel, be to tilt 15 °～20 °.The guide pillar and the compression spring of four axial limitings are housed between die shoe and base, when off working state, keep certain spacing between die shoe and the base.

During punching press, the punch press ram drives upper bolster and moves downward, touch plate on the die to punch after, punch promotes plate, die partly moves down whole die shoe.Along with moving down of die shoe, turnover panel angle of inclination on the base cushion block diminishes gradually, when moving to the die shoe lower surface when contacting with base upper surface, turnover panel on the base cushion block is by tiltedly flattening and contacting with die backing plate (or concave template) lower surface, pad, upper bolster continues to descend, and finishes stamping-out work.When the punch press ram rose, die shoe rose simultaneously with upper bolster under the compression spring action, and die shoe rises to certain distance, owing to the spacing of four guide pillars stops.Along with the rising of die shoe, the front end that lifts base cushion block flap tilts turnover panel, and the part (or waste material) that stamping-out is dropped on the turnover panel skids off outside the mould.For guaranteeing the reliable of discharging, be provided with the compressed air nozzle in the front portion of die shoe upper surface.

The utility model is made major parts such as punch, die, punch retainer with sheet metal, mould bases is general, kept the thin plate punch die to make simple and easy, economic, characteristics fast, simultaneously owing between punch, the die bigger spacing being arranged, do not lead and use little guide pillar, the same broad view with the ordinary construction punch die, easy to operate; When stamping-out, punch is with after plate, die contact, and promotes plate, die descends one than short distance, plate is clamped between protruding, the die in the meantime, until finishing stamping-out, guaranteed accurate positioning, reliable and towards the quality of part, production efficiency improves a lot.

Below with reference to accompanying drawing concrete structure of the present utility model is further described.

Fig. 1 is a general structure schematic diagram of the present invention.

Fig. 2 is the left view of Fig. 1.

Fig. 3 partly takes down the partial view of die for the compressed air nozzle.

Referring to Fig. 1～Fig. 3, the present invention is a kind of sheet metal blanking mould of making major parts such as punch, die, punch retainer with sheet metal, it is characterized in that its general mould bases has three layers of die holder, except that the die shoe (2) of the upper bolster (1) that punch is installed, installation die, below die shoe (2), be provided with base (3).Guide pillar (4), the compression spring (5) of axial limiting are housed between die shoe (2) and the base (3), make die shoe (2) and base (3) keep certain spacing in off working state.One row's part panel turnover mechanism is arranged on base (3), in the stamping-out process, rely on relatively moving between die shoe (2) and the base (3), the part panel turnover mechanism action of the row of drive, die is padded when guaranteeing stamping-out, when stamping-out finishes the punch press backhaul, the part (or waste material) that sweeps away is discharged mould.Punch (7) is fixed on the punch retainer (9) with quilting rivet (8), and punch retainer (9) is fastened on the upper bolster (1) with screw (10), and die (14), die backing plate (12) are fastened on the die shoe (2) with screw (10).

Row's part panel turnover mechanism is to be provided with like this: there is a rectangular through holes in the central authorities at die shoe (2), central authorities at base (3) have the cushion block (11) of a same size to match with it, one hinged turnover panel (6) is arranged on the cushion block (11), the non-hinged end of turnover panel (6) rides on the step edge, front of the central oblong aperture of die shoe (2), cushion block (11) and turnover panel (6) thickness sum and die shoe (2) join do consistent.The rear portion of die shoe (2) has downward-sloping chute (13).When stamping-out, the punch press ram drives upper bolster (1) and descends, to punch (7) with after blank on the die face contact, promotion die shoe (2) decline, decline along with die shoe, the angle of inclination of turnover panel (6) diminishes gradually, and when the lower surface of die shoe (2) contacted with the upper surface of base (3), turnover panel (6) is the angle of inclination vanishing of cushion block relatively, turnover panel (6) upper surface contacts with die backing plate (12) lower surface, die backing plate (12) is padded, and the punch press ram continues to descend, and finishes stamping-out.After stamping-out finished, punch press ram band upper bolster (1) and is risen, and die shoe (2) rises under the effect of spring (5), and the front end of turnover panel (6) is raised, and turnover panel (6) tilts, and makes the part (or waste material) that sweeps away skid off punch die.For strengthening the angle of inclination, the punch press lathe bed should tilt to be not less than 20 ° when using this punch die.

Arrange the smooth, reliable of part for assurance, before the central oblong aperture of die shoe (2), be provided with compressed air fan-shaped nozzle structure, see shown in Figure 3.The fan groove that it is characterized in that being processed with in the upper surface front portion of die shoe (2) degree of depth and be 0.5～1.5 millimeter communicates with oblong aperture, and this groove forms nozzle with the die backing plate (12) (or concave template) that is installed on the die shoe (2).This groove communicates with compressed air source, finishes to connect compressed air after die shoe (2) is got back to upper end position at stamping-out, and the part (or waste material) that the compressed air promotion that blows out sweeps away skids off punch die.

Claims (2)

1, a kind of thin plate punch die of three layers of die holder structure, the punch of this punch die, die, major parts such as punch retainer are made with sheet metal, it is characterized in that its general mould bases has three layers of die holder, remove the upper bolster (1) that punch is installed, install outside the die shoe (2) of die, below die shoe (2), be provided with base (3), the guide pillar (4) of axial limiting is housed between die shoe (2) and the base (3), compression spring (5), make between die shoe (2) and the base (3) and keep certain spacing in off working state, there is a rectangular through holes in the central authorities of die shoe (2), there is the cushion block (11) of same size to match with it in base (3) central authorities, one hinged turnover panel (6) is arranged on the cushion block (11), the non-hinged end of turnover panel (6) rides on the step edge, front of the central oblong aperture of die shoe (2), the thickness sum of cushion block (11) and turnover panel (6) and die shoe (2) thickness are joined and are done consistently, and the rear portion of die shoe has downward-sloping chute (13).

2, according to the thin plate punch die of the described three layers of die holder structure of claim 1, the fan groove that it is characterized in that being processed with before die shoe (2) the upper face center oblong aperture degree of depth and be 0.5～1.5 millimeter communicates with oblong aperture, this groove forms nozzle with the die backing plate (12) (or concave template) that is installed in die shoe (2) upper surface, and this groove and compressed air source join.

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