CN201988637U

CN201988637U - Upper die of numerical control punch die

Info

Publication number: CN201988637U
Application number: CN 201120082714
Authority: CN
Inventors: 祁海鸥
Original assignee: GUANGZHOU KETEC PRECISION TOOLING CO Ltd
Current assignee: GUANGZHOU KETEC PRECISION TOOLING CO Ltd
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-09-28
Anticipated expiration: 2021-03-25
Also published as: WO2012129896A1

Abstract

The utility model relates to an upper die of a numerical control punch die, which belongs to a stamping die device of the punch. The upper die of the numerical control punch die comprises a breaking head, a regulating sleeve and a punch head body, wherein a stepped hole is formed in the breaking head in the radial direction; a pressing locking hook is arranged in the stepped hole; a return spring is arranged between the stepped hole and the pressing locking hook; a transitional step is formed between the head part and the rod part of the pressing locking hook; the inner end portion of the pressing locking hook is fixedly connected with a hooking pin in the radial direction; a groove corresponding to the locking pin is formed in the breaking head; an upper cylinder body of a locking core is arranged in a central cylindrical through hole of the breaking head; and an annular groove and multiple equally-divided grooves which are buckled with the hooking pin and distributed in the radial direction are respectively formed inside and outside the end surface of the shoulder part of the locking core. The upper die of the numerical control punch die has the following advantages: after a cutting edge of the punch head is worn, the extending length of the punch head can be fast adjusted, the service life of the punch head can be prolonged, and simple structure and low manufacturing cost are obtained.

Description

The numerical control punch die patrix

Technical field

The utility model relates to the punch press die set, particularly numerical control press punch die patrix.

Background technology

The present numerical control punch die patrix that uses, particularly big station mould is after the wearing and tearing of drift cutting edge, for keeping the patrix shut height constant, must between drift and punch body, increase the pad of suitable thickness mostly, whole numerical control punch die patrix must be disintegrated for this reason, increase a lot of workloads.Some mould is because of the restriction of structure, and spacer thickness is very thin, has greatly influenced the service life of drift.Though the device that has punch length to regulate because of complex structure, costs an arm and a leg, operation inconvenience, it is applied and is restricted.

Summary of the invention

The purpose of this utility model provides a kind of after the wearing and tearing of drift cutting edge, but the length that the rapid adjustment drift stretches out, the service life of prolongation drift, and simple in structure, the adjustable numerical control punch die patrix of the punch length of low cost of manufacture.

Technical solution of the present utility model is that the numerical control punch die patrix comprises attacking head, regulating sleeve, punch body, be provided with the lock core that its bottom that its upper end can be connected or separate with attacking head is connected with punch body between attacking head and the punch body, attacking head is with fixedly connected with the sleeve that the punch body upper external screw thread is connected by its internal thread, radially be provided with a shoulder hole in the attacking head, be provided with in this hole and push latch hook, at shoulder hole and push and be provided with back-moving spring between the latch hook; Be provided with transition shoulder between the described head of pushing latch hook and the bar portion, its inner end radially is connected with a hook pin, is provided with in the attacking head and the corresponding groove of hook pin; The upper cylinder of lock core is located in the central cylindrical through hole of attacking head, be respectively equipped with inside and outside the end face of its shoulder cannelure and be radially-arranged can with a plurality of five equilibrium grooves of hook pin snapping.

Above-described lock core bottom can be provided with quadrangular, and this quadrangular is plugged in the corresponding cubic hole, punch body upper end.

After operation principle of the present utility model is the wearing and tearing of drift cutting edge, for keeping the patrix shut height constant, press...with one's finger earlier and press the outer end of pushing latch hook, push latch hook and overcome the elastic force of back-moving spring to the attacking head slides within, and the hook pin of pushing on the latch hook is in the lock core shoulder end face make mechanism's release in the cannelure, keep coaxial with fixed drift of punch body and lock core and limit its rotation and only can move up and down, can rotate attacking head this moment as required, and attacking head drives regulating sleeve, regulating sleeve and then drive punch body, punch body drives drift again and moves down, and when punch length is in correct position, stops to push latch hook; After pushing latch hook and resetting, push a hook pin on the latch hook and a groove in the radially-arranged five equilibrium groove of lock core shoulder end face and be interlockingly connected and make mechanism's locking, attacking head is pinned and can not rotate by lock core, thereby the drift extension elongation is regulated and finished.

The utility model has the advantages that after the wearing and tearing of drift cutting edge, but the length that the rapid adjustment drift stretches out, the service life of prolongation drift, and simple in structure, low cost of manufacture.

Description of drawings

Fig. 1 is an organigram of the present utility model;

Fig. 2 is along the profile of F-F among Fig. 1;

Fig. 3 is along the profile of N-N among Fig. 1;

Fig. 4 is a stereogram of pushing latch hook and back-moving spring of the present utility model;

Fig. 5 is the stereogram of lock core of the present utility model.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model mainly comprises attacking head 1, regulating sleeve 7, punch body 6.Between attacking head 1 and the punch body 6 lock core 5 that its upper end can be connected with punch body 6 with its bottom that attacking head 1 is connected or separates is installed, attacking head 1 is fixedly connected with the regulating sleeve 7 usefulness screws 15 that are connected with punch body 6 upper external screw threads by its internal thread.Be processed with central through hole on the attacking head 1, what the upper gap of lock core 5 cooperated is inserted in the described central through hole.The upper end of lock core 5 is processed with the snap ring groove, on attacking head 1 upper surface annular groove, lock core 5 and attacking head 1 can be rotated and can not play with snap ring 16 retaining.Radially be processed with a shoulder hole in the attacking head 1, be equipped with in this shoulder hole and can push latch hook 2, in attacking head 1 and the annulus of pushing latch hook 2 back-moving spring 3 is installed along what attacking head radially slided.Push between the head of latch hook 2 and the bar portion and be processed into transition shoulder, the inner of pushing latch hook 2 radially is installed with hook pin 4.In attacking head 1, be processed with the groove that can be slidingly matched with hook pin 4.Be processed with respectively inside and outside the end face of the shoulder of lock core 5 cannelure and be radially-arranged can with 12 five equilibrium grooves of hook pin 4 snappings, lock core 5 bottoms are processed with quadrangular, this quadrangular is inserted in the cubic hole of punch body 6 upper end correspondences.Dish spring 8 is installed in screw 14 and is fixed between the lower surface of the upper surface of dish spring abutment 13 of upper end of guide pin bushing 9 and attacking head 1, and the lower end of punch body 6 is equipped with feather key 12.Drift 11 usefulness screws 10 are fixedly mounted on the lower end of punch body 6.

Claims

1. numerical control punch die patrix, comprise attacking head, regulating sleeve, punch body, be provided with the lock core that its bottom that its upper end can be connected or separate with attacking head is connected with punch body between attacking head and the punch body, attacking head is with fixedly connected with the sleeve that the punch body upper external screw thread is connected by its internal thread, it is characterized in that radially being provided with in the attacking head shoulder hole, be provided with in this shoulder hole and push latch hook, at shoulder hole and push and be provided with back-moving spring between the latch hook; Be provided with transition shoulder between the described head of pushing latch hook and the bar portion, its inner end radially is connected with a hook pin, is provided with in the attacking head and the corresponding groove of hook pin; The upper cylinder of lock core is located in the central cylindrical through hole of attacking head, be respectively equipped with inside and outside the end face of its shoulder cannelure and be radially-arranged can with a plurality of five equilibrium grooves of hook pin snapping.

2. numerical control punch die patrix according to claim 1 is characterized in that the lock core bottom is provided with quadrangular, and this quadrangular is plugged in the corresponding cubic hole, punch body upper end.