CN205966958U - Side-inclined punching die structure - Google Patents

Abstract

The utility model discloses a side-inclined punching die structure, which comprises a fixed plate, a discharging backing plate and a discharging plate which are sequentially arranged from top to bottom; the punching device is characterized by also comprising a fixing plate insert and a punch, wherein the lower end surface of the fixing plate is provided with a groove A, the fixing plate insert is arranged in the groove A, a punch guide hole is formed in the stripper plate, a punch through hole is formed in the stripper plate, and the punching end of the punch is in sliding fit with the stripper plate along the punch guide hole; the other end of the punch penetrates through the punch through hole, and the end surface of the punch is connected with the fixing plate insert during die assembly; the central line of the punch guide hole forms an acute angle with the horizontal plane and is vertical to the surface of the blanking part of the workpiece blank; the upper end face of the punch is parallel to the lower end face of the fixed plate insert, the center line of the punch is superposed with the center line of the punch guide hole, grooves B are symmetrically formed in the inner surface of the punch guide hole in the left-right direction, springs are arranged in the grooves B, bulges are arranged on the left side and the right side of the punch corresponding to the positions of the grooves B, the bulges extend into the grooves B, and the lower side faces of the bulges are in compression joint with the. The utility model discloses product precision and security can be improved.

Description

A kind of skew back punch die lamps structure

Technical field

This utility model is related to a kind of mould structure, particularly to a kind of skew back punch die lamps structure.

Background technology

At present, punching is conventional technique in diel, in progressive die punching can be described as requisite heavy Want operation, accurate auto parts and components or some be assemblied in parts the product outside burr to product and product when being punched Outward appearance has higher requirement.Common punching process mould structure, in prior art, punching process mould structure, mainly adopt It is stripper binder, the process structure that drift is punched perpendicular to the motion of horizontal plane direction.This mould structure, punching Drift, is punched when needing the workpiece stock processed perpendicular to horizontal plane perpendicular to horizontal plane motion, the drift pilot hole of stripper When portion faces are not parallel to horizontal plane, that is, it is with drift pilot hole out of plumb, tilts for an acute angle, under such conditions, adopts Use this mould structure, that is, blanking punch is perpendicular to horizontal plane motion, but is not orthogonal to the workpiece stock punching portion needing processing Position surface, occurs cusp or the groove with certain angle, causes product size and outward appearance serious on the product so producing Bad, especially punching outward appearance and during the higher auto parts and components of precision dimensional requirement, using traditional blanking die structure life There is following technical problem during product：(1) blanking portion of stamping parts can produce a cusp with angle or groove.(as Fig. 3 institute Show) affect product appearance and precision；(2) due to the presence of cusp on stamping parts, punching press and assembling process easily scratch behaviour Make personnel, there is potential safety hazard.

Content of the invention

This utility model provides a kind of skew back punch die lamps structure for solving technical problem present in known technology.

This utility model is adopted the technical scheme that by solving technical problem present in known technology：A kind of skew back punching Mould structure, including the fixed plate installed successively from top to bottom, discharging backing plate and stripper；Also include fixed plate insert and punching Head, described fixed plate lower surface is provided with groove A, and described fixed plate insert is arranged in described groove A, and described stripper is provided with Drift pilot hole, described discharging backing plate is provided with drift via, the punching end of described drift along described drift pilot hole with described Stripper is slidably matched；The other end of described drift passes through described drift via, and its end face is inlayed with described fixed plate in matched moulds Block connects；The centrage of described drift pilot hole is with the horizontal an acute angle, and is punched with the workpiece stock favouring horizontal plane Portion faces are perpendicular；Described drift upper surface is parallel with described fixed plate insert lower surface, described punch-center line with described The centrage of drift pilot hole overlaps, and internal surface of hole is symmetrical has groove B for described drift guiding, is provided with described groove B Spring, about described drift, corresponding described groove B location is provided with projection, and described projection stretches in described groove B, under described projection Side is crimped with described spring in matched moulds.

This utility model can also adopt the following technical scheme that：

Also include drift limited block, described drift limited block is fixed on described stripper, and be located at described drift via Interior, connect with described convex upper side face during die sinking, limit described drift and shift up.

Described drift limited block is L-type, connects with described convex upper side face during the downside die sinking of its protrusion of arms.

This utility model has the advantages and positive effects that：When the workpiece stock punching portion faces needing processing are uneven Row in horizontal plane, that is, its not parallel with horizontal plane with certain angle, under such conditions, using mould of the present utility model knot Structure, the punching end of drift is slidably matched along drift pilot hole and stripper；The centrage of described drift pilot hole with favour institute The workpiece stock punching portion faces stating stripper lower surface are perpendicular；So matched moulds when, drift along with product section hang down Straight angle completes to be punched, and solves the cusp being formed in appearance or groove, improves Product Precision and safety.

Brief description

Fig. 1 is workpiece stock punching portion faces and die uneven mold-opening structure schematic diagram in prior art；

Fig. 2 is workpiece stock punching portion faces and die uneven mould-matching structure schematic diagram in prior art；

Fig. 3 is mold-opening structure schematic diagram of the present utility model；

Fig. 4 is mould-matching structure schematic diagram of the present utility model；

Fig. 5 is structural representation when drift of the present utility model, spring and limited block connect；

Fig. 6 is drift of the present utility model, spring and the right cross-sectional schematic of limited block attachment structure.

In figure：1st, fixing backing plate；2nd, drift；3rd, fixed plate；4th, discharging backing plate；5th, stripper；6th, fixed plate insert；7th, work Part stock；8th, workpiece stock punching position；9th, concave template；11st, raised；12nd, drift limited block；13rd, spring；14th, groove B.

Specific embodiment

For content of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following examples, and coordinate Accompanying drawing describes in detail as follows：

Refer to Fig. 1～Fig. 6, a kind of skew back punch die lamps structure, including the fixing backing plate 1 installed successively from top to bottom, admittedly Fixed board 3, discharging backing plate 4, stripper 5 and concave template 9；Workpiece stock 7 level is put on concave template 9, also includes fixed plate insert 6 With drift 2, described fixed plate 3 lower surface is provided with groove A, and described fixed plate insert 6 is arranged in described groove A, described discharging Plate 5 is provided with drift pilot hole, and described discharging backing plate 4 is provided with drift via, and the punching end of described drift 2 is led along described drift Described in Xiang Kongyu, stripper 5 is slidably matched；The other end of described drift 2 pass through described drift via, its end face in matched moulds with Described fixed plate insert 6 connects；The centrage of described drift pilot hole with the horizontal an acute angle, and with favour horizontal plane Workpiece stock punching position 8 perpendicular；Described drift 2 upper surface is parallel with described fixed plate insert 6 lower surface, described Drift 2 centrage is overlapped with the centrage of described drift pilot hole, and internal surface of hole is symmetrical has groove for described drift guiding B14, is provided with spring 13 in described groove B14, the corresponding described groove B14 position of described drift 2 about is provided with projection 11, described convex Play 11 and stretch in described groove B14, described projection downside is crimped with described spring 13 in matched moulds.

Further, remove described stripper 5 for limiting when drift 2 is upspring, may also include drift limited block 12, described punching Head limited block 12 can be fixed on described stripper 5, and can be located at drift and cross in the hole, during described die sinking with described raised 11 on the upside of Face connects, and limits described drift 2 and shifts up.

Further, described drift limited block 12 can be L-type, with described raised 11 during the downside die sinking of its protrusion of arms Upper side connects.

Operation principle of the present utility model：

Refer to Fig. 1 to Fig. 2, in prior art, punching process mould structure, mainly use stripper binder, punching The process structure that head is punched perpendicular to the motion of horizontal plane direction.This mould structure, blanking punch is transported perpendicular to horizontal plane Dynamic, the drift pilot hole of stripper, perpendicular to horizontal plane, is not parallel to water when the workpiece stock needing processing is punched portion faces During plane, that is, it is with drift pilot hole out of plumb, tilts for an acute angle, under such conditions, using this mould structure, that is, rushes Cut out drift perpendicular to horizontal plane motion, but be not orthogonal to the workpiece stock punching portion faces needing processing, the product so producing Cusp with certain angle or groove are occurred on product, causes product size and outward appearance seriously bad.

And this utility model is the processing processed punching not parallel horizontal plane of portion faces, with stripper drift pilot hole not Vertical workpiece stock, improves the mould structure of prior art, refers to Fig. 3 to Fig. 4, the centrage of described drift pilot hole With the horizontal an acute angle, and it is punched position 8 perpendicular with the workpiece stock favouring horizontal plane；Described drift 2 upper end Face is parallel with described fixed plate insert 6 lower surface, and described drift 2 centrage is overlapped with the centrage of described drift pilot hole, punching The punching end of head is slidably matched along drift pilot hole and stripper；The centrage of described drift pilot hole with favour described discharging The workpiece stock punching portion faces of plate lower surface are perpendicular；So matched moulds when, drift is along the angle vertical with product section Degree completes to be punched, and solves the cusp being formed in appearance or groove, improves Product Precision and safety.Refer to Fig. 5 and Tu 6, for ease of during die sinking, offsetting the frictional force of drift and surface of the work, described drift guiding internal surface of hole is symmetrical have recessed Groove B14, is provided with spring 13 in described groove B14, the corresponding described groove B14 position of described drift 2 about is provided with projection 11, described Raised 11 stretch in described groove B14, and described projection downside is crimped with described spring 13 in matched moulds, makes spring-compressed, opens During mould, by the bounce-back of spring, drive drift to move upwards, leave workpiece.

Workflow of the present utility model is：This utility model is suitable in the punching portion faces processing workpiece stock 7 not It is horizontal surface, it is used in the case of being had during inclination angle with stripper lower surface, and its die opening state refers to Fig. 3, workpiece embryo Material 7 is placed on concave template 9, and upper mould declines with lathe slide block, and fixed plate 3 is moved downwardly together with fixed plate insert 6, works as fixed plate When insert 6 is contacted with drift 2 and continues to move downward, drift 2 is by along the oblique cunning in drift pilot hole inclined-plane in stripper 5 Dynamic, until fixed plate 3 is contacted with discharging backing plate 4, drift 2 completes to be punched, and punch press continues motion, and lathe slide block rises, and will fix Plate 3 is separated with discharging backing plate 4, and under spring 13 effect, drift 2 is ramped up moving.Until touching drift limited block 12, Return to state shown in Fig. 4.So drift 2 completes to be punched along the angle vertical with product section, solves and is formed in appearance Cusp or groove, improve Product Precision and safety.

Embodiment described above is merely to illustrate technological thought of the present utility model and feature, its object is to make ability Technical staff in domain is it will be appreciated that content of the present utility model according to this enforcement are it is impossible to only to limit this practicality with the present embodiment New the scope of the claims, equal change or modification that is, the spirit disclosed in all this utility model is made, still fall new in this practicality In the scope of the claims of type.

Claims (3)

1. a kind of skew back punch die lamps structure it is characterised in that include install successively from top to bottom fixed plate, discharging backing plate and Stripper；Also include fixed plate insert and drift, described fixed plate lower surface is provided with groove A, described fixed plate insert is arranged on In described groove A, described stripper is provided with drift pilot hole, and described discharging backing plate is provided with drift via, described drift Punching end is slidably matched along described drift pilot hole and described stripper；The other end of described drift passes through described drift via, Its end face is connected with described fixed plate insert in matched moulds；The centrage of described drift pilot hole with the horizontal an acute angle, and Perpendicular with the workpiece stock punching portion faces favouring horizontal plane；Described drift upper surface and described fixed plate insert lower end Face is parallel, and described punch-center line is overlapped with the centrage of described drift pilot hole, right about described drift guiding internal surface of hole Claim to have groove B, in described groove B, be provided with spring, about described drift, corresponding described groove B location is provided with projection, described convex Rising stretches in described groove B, and described projection downside is crimped with described spring in matched moulds.

2. skew back punch die lamps structure according to claim 1 is it is characterised in that also include drift limited block, described drift Limited block is fixed on described stripper, and crosses in the hole positioned at described drift, connects with described convex upper side face during die sinking, limits Described drift shifts up.

3. it is characterised in that described drift limited block is L-type, it stretches out skew back punch die lamps structure according to claim 2 Connect with described convex upper side face during the downside die sinking of arm.