CN205380184U - Dark square punch and die -cut mould - Google Patents

Abstract

The utility model provides a dark square punch and die -cut mould belongs to the operation technology field. It has been solved current drift and has had the short -lived problem of drift towards dark square hole. This dark square punch, including pole body and connecting portion, the transversal rectangle of personally submitting of pole body is provided with the component inclined plane in two length of branch edges and corners departments between the punching press face of pole body and the side at least. The component inclined plane can make the stamping press produce the component to pole body center during the punching press, improves the rigidity of dark square hole punch rod body, reduces the drift and receives the lateral extrusion effort, reduces drift fracture possibility by a wide margin, shows the drift life who lands and improve promptly.

Description

Deep square punch and blanking die

Technical field

This utility model belongs to technical field of operation, relates to a kind of hole punched device, particularly a kind of deep square punch.

This utility model belongs to technical field of operation, relates to a kind of hole punched device, particularly a kind of blanking die.

Background technology

Punching press and stamping-out are the processing modes that a kind of efficiency is significantly high, especially in sheet fabrication, are welcome widely.During punching, the thickness of sheet material is generally less than or equal to the diameter of punching, if thickness exceedes aperture, then due to the restriction by drift intensity, drift is easily damaged, and the life-span is comparatively short.For rushing square hole, equally when thickness of slab exceedes square hole width, also have limited by drift intensity equally, problem that the drift life-span is short.

Summary of the invention

The utility model proposes a kind of deep square punch, the technical problems to be solved in the utility model is the drift service life how improved and rush deep square hole.

Of the present utility model solving the technical problem that can be realized by following technical proposal: this deep square punch, including shaft and connecting portion, the cross section of shaft is rectangular, at least two long edges and corners is provided with component inclined-plane between stamping surface and the side of shaft.

During punching press, component inclined-plane can make stamping press produce the component to shaft center, improves the rigidity of deep square punch shaft, reduces drift by lateral compression active force, and drift fracture probability, the drift service life that namely significantly increases are greatly reduced.

Showing between described component inclined-plane and stamping surface that angle α be 5 °～10 ° is preferred value by a large amount of Theoretical Calculation and test, the width w on component inclined-plane is 0.3mm～0.6mm；Both can guarantee that processing quality, drift service life can have been improved again.

In above-mentioned deep square punch, four edges and corners between stamping surface and the side of described shaft are provided with component inclined-plane.

In the deep square hole device of above-mentioned punching, being obliquely installed in described shaft between at least narrow side and stamping surface, its tapering is 0.03～0.08.

This blanking die, including cope match-plate pattern and lower bolster, the connecting portion of above-mentioned drift is fixing with cope match-plate pattern to be connected, and drift is vertically arranged；On lower bolster, level slidably connects two pieces of locating pieces that can clamp workpiece, and lower bolster is fixed with the lower module with nib corresponding with forcer position；Being provided with holding pad between lower bolster and cope match-plate pattern, locating piece is connected to the voussoir that can lean with holding pad by inclined-plane.

Workpiece is placed on lower module, when cope match-plate pattern moves down, drives holding pad to move down, and voussoir drives locating piece to slide and first clamps workpiece, and drift is die-cut workpiece again, thus can improve Workpiece Machining Accuracy and quality, can significantly increase again drift service life.

Compared with prior art, this deep square punch, by arranging component inclined-plane, decomposes stamping press, reduces deep square punch fracture probability.This deep square punch arranges less tapering, reduces the frictional force between drift shaft and workpiece, and then is conducive to improving the life-span of drift.

This blanking die by first clamping workpiece more die-cut workpiece, is effectively prevented from vibration damage drift, namely ensures die-cut stable, improves drift service life.

Accompanying drawing explanation

Fig. 1 is the perspective view of drift in embodiment one.

Fig. 2 is the partial structurtes schematic diagram of drift edges and corners in embodiment one.

Fig. 3 is the perspective view of drift in embodiment two.

Fig. 4 is the partial structurtes schematic diagram of drift edges and corners in embodiment two.

Fig. 5 is the perspective view of workpiece.

Fig. 6 is the sectional structure schematic diagram of blanking die.

Fig. 7 is the plan structure schematic diagram of counterdie in die-cut mill.

In figure, 1, deep square punch；1a, shaft；1b, connecting portion；1c, stamping surface；1d, side；1d1, narrow side；1e, component inclined-plane；2, blanking die；2a, cope match-plate pattern；2b, lower bolster；2c, holding pad；2d, lower module；2d1, nib；2e, the first guide pillar；2f, the first fixing plate；2g, cushion block；2h, the second guide pillar；2i, stripper；2j, brute spring；2k, the 3rd guide pillar；2m, the second fixing plate；2n, locating piece；2p, voussoir；2q, back-moving spring；2r, vee-block；3, dynamic iron core；3a, deep square hole.

Detailed description of the invention

The following is specific embodiment of the utility model and in conjunction with accompanying drawing, the technical solution of the utility model is further described, but this utility model is not limited to these embodiments.

Embodiment one

As depicted in figs. 1 and 2, this deep square punch 1 is in shaft-like, and bottom is for die-cut shaft 1a, and upper end is the connecting portion 1b being connected with blanking die 2；The cross section of shaft 1a and connecting portion 1b is all rectangular；The length and width one_to_one corresponding of the length and width of obvious shaft 1a and deep square hole 3a to be processed.

This deep square punch 1 degree of depth according to deep square hole 3a to be processed, shortens the length of shaft 1a as far as possible, it is achieved improve drift rigidity.

This deep square punch 1 adopts Powder High-speed Steels to make, it is to avoid the problem that common high-speed steel segregation is serious, namely adopts the Powder High-speed Steels to substantially increase toughness and the hardness of deep square punch 1.

The bottom surface of shaft 1a is called stamping surface 1c, between stamping surface 1c and side 1d, two long edges and corners is provided with component inclined-plane 1e.

As shown in Figure 6 and Figure 7, blanking die 2 is included cope match-plate pattern 2a, lower bolster 2b, holding pad 2c and lower module 2d, cope match-plate pattern 2a and lower bolster 2b and is connected by many first guide pillar 2e.Above-mentioned drift is vertically arranged, and the connecting portion 1b of drift is connected by the first fixing plate 2f and cope match-plate pattern 2a is fixing.Holding pad 2c is between cope match-plate pattern 2a and lower bolster 2b；Between holding pad 2c and cope match-plate pattern 2a, pad is provided with the cushion block 2g that polyurethane is made；Journey guiding is limit to be connected by the second guide pillar 2h between holding pad 2c with cope match-plate pattern 2a.What have confession drift traverse on holding pad 2c dodges hole.

Being provided with stripper 2i between lower bolster 2b and holding pad 2c, between stripper 2i and lower bolster 2b, pad is provided with brute spring 2j；Journey guiding is limit to be connected by the 3rd guide pillar 2k between stripper 2i with lower bolster 2b.Stripper 2i has the pilot hole for drift traverse.Having nib 2d1, lower module 2d on lower module 2d to be connected by the second fixing plate 2m and lower bolster 2b is fixing, nib 2d1 and drift are oppositely arranged.Having the first gathering sill on the plate face of the second fixing plate 2m, be embedded with two pieces of locating piece 2n in the first gathering sill, lower module 2d is between two pieces of locating piece 2n.Stripper 2i has the second gathering sill being vertically arranged, is embedded with in the second gathering sill and the locating piece 2n voussoir 2p being connected by inclined-plane.

Cope match-plate pattern 2a is subject to down thrust effect and moves downward along the first guide pillar 2e；Cope match-plate pattern 2a drives holding pad 2c to move, and holding pad 2c drives voussoir 2p motion, and voussoir 2p drives locating piece 2n to slide, and then the Workpiece clamping that two pieces of locating piece 2n will be placed on lower bolster 2b；Holding pad 2c also drives unloading block to move down, and unloading block and lower module 2d are by Workpiece clamping.Back punching head continue to move down and realize die-cut workpiece.In order to be able to make locating piece 2n automatically to open, between locating piece 2n and lower module 2d, it is provided with back-moving spring 2q.

Workpiece shown in Fig. 5 is the dynamic iron core 3 starting motor, by setting forth in processing startup motor have, on dynamic iron core 3 head, the deep square hole 3a that L × W × H is 7.5mm × 4.5mm × 6mm, further illustrates deep square punch 1 and blanking die 2.

Deep square punch 1 shaft 1a cross section L × W is 7.5mm × 4.5mm.Between component inclined-plane 1e and stamping surface 1c, angle α is 5 °～10 °, is 7 ° as preferred angle.The width w of component inclined-plane 1e is 0.25mm～0.6mm, is 0.5 as preferable width w.Being obliquely installed between narrow side 1d1 and stamping surface 1c in shaft 1a, tapering numerical value=X/L, X value is 0.02～0.05mm, L is the length of shaft 1a.

Dynamic iron core 3 head and mill deformation groove on deep lateral surface 1d corresponding for square hole 3a long side surface 1d, the degree of depth of deformation groove is 0.02～0.05, and the length of deformation groove is corresponding with deep square hole 3a length.Deform groove time die-cut and provide space for material deformation, reduce material rebounds power, and then reduce the frictional force to deep square punch 1 shaft 1a, thus improve the service life of deep square punch 1.

The lower bolster 2b of blanking die 2 is fixed with the vee-block 2r with V-shaped groove, the vee-block 2r cylindrical portion placement for dynamic iron core 3, namely improves dynamic iron core 3 positioning precision.

Embodiment two

The present embodiment is essentially identical with structure and the principle of embodiment one, and essentially identical part no longer burden describes, and only describes different place, and different place is in that: four edges and corners between the stamping surface 1c and side 1d of shaft 1a are provided with component inclined-plane 1e.

Claims (10)

1. a deep square punch, including shaft (1a) and connecting portion (1b), the cross section of shaft (1a) is rectangular, it is characterized in that, between stamping surface (1c) and side (1d) of described shaft (1a), at least two long edges and corners are provided with component inclined-plane (1e).

2. deep square punch according to claim 1, it is characterised in that four edges and corners between stamping surface (1c) and side (1d) of described shaft (1a) are provided with component inclined-plane (1e).

3. deep square punch according to claim 1 and 2, it is characterised in that between described component inclined-plane (1e) and stamping surface (1c), angle α is 5 °～10 °.

4. deep square punch according to claim 1 and 2, it is characterised in that the width w of described component inclined-plane (1e) is 0.3mm～0.6mm.

5. deep square punch according to claim 1 and 2, it is characterised in that being obliquely installed between at least narrow side (1d1) and stamping surface (1c) in described shaft (1a), its tapering is 0.03～0.08.

6. a blanking die, including cope match-plate pattern (2a) and lower bolster (2b), in claim 1 to 5, the connecting portion (1b) of deep square punch (1) described in any one is fixing with cope match-plate pattern (2a) is connected, and deep square punch (1) is vertically arranged；It is characterized in that, the upper level of described lower bolster (2b) slidably connects two pieces of locating pieces (2n) that can clamp workpiece, and lower bolster (2b) is fixed with lower module (2d) that is corresponding with deep square punch (1) position and that have nib (2d1)；Being provided with holding pad (2c) between lower bolster (2b) and cope match-plate pattern (2a), locating piece (2n) is connected to the voussoir (2p) that can lean with holding pad (2c) by inclined-plane.

7. blanking die according to claim 6, it is characterised in that be fixed with the vee-block (2r) with V-shaped groove on described lower bolster (2b).

8. blanking die according to claim 6, it is characterised in that be provided with back-moving spring (2q) between described locating piece (2n) and lower module (2d).

9. the blanking die according to claim 6 or 7 or 8, it is characterised in that described lower module (2d) is connected by the second fixing plate (2m) is fixing with lower bolster (2b)；Having the first gathering sill on the plate face of the described second fixing plate (2m), locating piece (2n) is embedded in the first gathering sill, and lower module (2d) is positioned between two pieces of locating pieces (2n)；Being provided with stripper (2i) between lower bolster (2b) and holding pad (2c), between stripper (2i) and lower bolster (2b), pad is provided with brute spring (2j)；Journey guiding is limit to be connected by the 3rd guide pillar (2k) between stripper (2i) with lower bolster (2b)；Having the second gathering sill being vertically arranged on stripper (2i), voussoir (2p) is embedded in the second gathering sill.

10. the blanking die according to claim 6 or 7 or 8, it is characterised in that between described holding pad (2c) and cope match-plate pattern (2a), pad is provided with the cushion block (2g) that polyurethane is made；Journey guiding is limit to be connected by the second guide pillar (2h) between holding pad (2c) with cope match-plate pattern (2a).