CN2790622Y

CN2790622Y - Numerical control turret punch press portable die-changing device

Info

Publication number: CN2790622Y
Application number: CN 200520080424
Authority: CN
Inventors: 邱禄魁; 戴玉花
Original assignee: LONGYAN LISHANG PRECISION MACHINERY CO Ltd
Current assignee: LONGYAN LISHANG PRECISION MACHINERY CO Ltd
Priority date: 2005-02-06
Filing date: 2005-02-06
Publication date: 2006-06-28
Anticipated expiration: 2015-02-06

Abstract

The utility model discloses a die-changing device for a numerical controlled rotary tower type punch. The utility model comprises a die seat 1, a cover plate 2, a guide key 3 and a pushing screw 4, wherein the front end of the die seat is provided with a half inner column positioning face 1-1, and the center of the die seat is provided with a key groove 1-2 in which the guide key 3 is arranged; the back end of the die seat is provided with two symmetrically arranged back stress slope seats 1-4 with inner slopes 1-3; the cover plate 2 is provided with a positive stress slope 2-1 and a thread pushing hole 2-2; a die 5 is tightly attached to the a half inner column positioning face 1-1; the guide key 3 fixed on the key groove 1-2 can cause the die to be circumferentially positioned and fixed through a guide groove 5-1 of the die; the cover plate 2 is arranged on steps of the slope seats 1-4, and is matched with the die 5. Through screwing the pushing screw 4 in the thread pushing hole 2-2, the die 5 can be fixed in the radial direction, and the positive stress slope 2-1 of the cover plate is tightly attached with the inner slopes 1-3 of the slope seats 1-4 to form a self-locking cooperation so that the die 5 can be fixed in the axial direction. The technical scheme can overcome the defects of easy damage of the die and the die seat in the process of the assembly and disassembly, poor assembly and positioning precision, time waste and labor waste in operation of the die in the prior art.

Description

The convenient mould changing device of NC turret punch machine

One, technical field

The present invention relates to a kind of mechanical processing industry mould changing device, particularly NC turret punch machine mould changing device.

Two, background technology

Existing NC turret punch machine dress delivery tool adopts that mould cooperates with the die holder full circle, anti-rotation feather key work is located, held out against screw mould is fixed on method on the die holder full circle hole; must pull down die holder when dress mould or delivery; mould is beaten out from the die holder hole, and there is following shortcoming in such device:

Knocking device took out mould and strikes bad mould and die holder easily when (1) cooperation was tight.

The assembling positioning accuracy is poor when (2) cooperating pine.

(3), feather key and mould gathering sill are misplaced and damage because mould is axially to pack into, and feather key can't import guiding earlier.

(4) operation link many, waste time and energy.

The purpose of this utility model is to overcome above-mentioned defective, designs a kind of device of being made up of die holder and cover plate, dress delivery tool from the mould storehouse, and the installation positioning accuracy of raising mould easily.

Three, summary of the invention

For reaching above purpose, the convenient mould changing device of the utility model NC turret punch machine is by die holder, cover plate, feather key and hold out against screw and form, be positioned at the die holder front end and establish half cylinder locating surface, a keyway is driven in center on it, feather key is put in the groove, the die holder rear end has two to be reverse stressed inclined-plane seat symmetric arrangement, the interior inclined-plane of band, stressed inclined-plane of cover plate band forward and top wire hole; Mould is adjacent to cylinder locating surface in half, the feather key that is fixed on the keyway passes through the gathering sill of mould with the circumferential positioning and fixing of mould, cover plate places on the seat stand rank, inclined-plane and with mould and cooperates, hold out against radially fixed mould of screw by screwing in the top wire hole, and the stressed inclined-plane of the forward that makes cover plate and the interior inclined-plane of inclined-plane seat be adjacent to and form self-locking and cooperate, thus the axial restraint mould.

Above technical scheme has following advantage:

(1) feather key imports earlier, guarantees that guiding does not misplace, and feather key and mould gathering sill can not damage; The dress process of getting does not have and beats, and mould does not damage.

(2) cover plate inclined-plane and die holder inclined-plane constitute self-locking, and cover plate and die holder are fixing reliable.

(3) the semi circular surface location increases substantially the installation positioning accuracy.

(4) hold out against screw by degree of tightness and pick up or put down cover plate naturally and can load and unload mould, easy and simple to handle, time saving and energy saving.

(5) simply light, the material-saving of whole apparatus structure, cost of manufacture is low, is easy to promote.

Four, description of drawings

Fig. 1 is the utility model NC turret punch machine mould changing device vertical view;

Fig. 2 is that the convenient mould changing device master of the utility model NC turret punch machine looks cutaway view;

Fig. 3 is the convenient mould changing device die holder of a utility model NC turret punch machine vertical view;

Fig. 4 is the convenient mould changing device die holder of a utility model NC turret punch machine master cutaway view;

Fig. 5 is the convenient mould changing device cover plate of a utility model NC turret punch machine vertical view;

Fig. 6 is the convenient mould changing device cover plate of a utility model NC turret punch machine front view;

Fig. 7 is the mould vertical view;

Fig. 8 is that the mould master looks cutaway view.

Five, embodiment

Fig. 1 to the convenient mould changing device of NC turret punch machine shown in Figure 8 by die holder 1, cover plate 2, feather key 3 with hold out against screw 4 and form, be positioned at die holder 1 front end and establish half cylinder locating surface 1-1, a keyway 1-2 is opened in center on it, feather key 3 is put in the groove, the die holder rear end has two to be reverse stressed inclined-plane seat 1-4 symmetric arrangement, the interior inclined-plane 1-3 of band, cover plate 2 band stressed inclined-plane 2-1 of forward and top wire hole 2-2; Gathering sill 5-1 with mould 5 during installation also radially imports facing to the feather key 3 that is fixed on the die holder 1, mould 5 faces of cylinder are adjacent to the semicircle locating surface 1-1 of die holder 1, cover plate 2 is pushed on the inclined-plane seat 1-4 step and with mould 5 gently along the interior inclined-plane 1-3 of inclined-plane seat 1-4 cooperates, the interior inclined-plane 1-3 of cover plate inclined-plane 2-1 and die holder is contacted naturally, screw among the top wire hole 2-2 of cover plates 2 mould 5 is held out against holding out against screw 4, naturally block the formation self-locking at the inclined-plane 2-1 of the reaction force lower cover 2 that holds out against screw 4 with the interior inclined-plane 1-3 of die holder 1 simultaneously and cooperate, promptly finish the dress modulo operation.Taking out mould 5 carries out suddenly by contragradience.

Whether the clamping of mould 5 firm, correctly be guaranteed by following three aspects: one, and by the guiding of feather key 3, mould 5 is guaranteed non-migration with the relative position of die holder 1; Its two, hold out against radially holding out against of 4 pairs of moulds 5 of screw, guaranteed mould 5 diametrically with die holder 1 no gap and cooperate closely, loosening; Its three, the inclined-plane 2-1 of cover plate 2 cooperates with the self-locking of the interior inclined-plane 1-3 of die holder 2, makes mould 5 not move in the axial direction, has guaranteed mould 5 tightness in the axial direction.

Claims

1, the convenient mould changing device of a kind of NC turret punch machine, comprise die holder (1), feather key (3) and hold out against screw (4), it is characterized in that: further comprising cover plate (2), be positioned at die holder (1) front end and establish half cylinder locating surface (1-1), a keyway (1-2) is driven in center on it, feather key (3) is put in the groove, and die holder (1) rear end has two to be reverse stressed inclined-plane seat (1-4) symmetric arrangement, the interior inclined-plane (1-3) of band, cover plate (2) band stressed inclined-plane of forward (2-1) and top wire hole (2-2); Mould (5) is adjacent to cylinder locating surface (1-1) in half, the feather key (3) that is fixed on the keyway (1-2) passes through the gathering sill (5-1) of mould (5) with the circumferential positioning and fixing of mould (5), cover plate (2) places on inclined-plane seat (1-4) step and with mould (5) and cooperates, hold out against radially fixed mould (5) of screw (4) by screwing in the top wire hole (2-2), and the stressed inclined-plane of forward (2-1) that makes cover plate (2) and the interior inclined-plane (1-3) of inclined-plane seat (1-4) be adjacent to and form self-locking and cooperate, thus axial restraint mould (5).