CN201760490U

CN201760490U - Automatic puncher

Info

Publication number: CN201760490U
Application number: CN2010205097373U
Authority: CN
Inventors: 李春生
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-30
Filing date: 2010-08-30
Publication date: 2011-03-16
Anticipated expiration: 2020-08-30

Abstract

The utility model relates to an automatic puncher comprising a power unit, a punching mold and a base, wherein the power unit consists of a cylinder barrel, a piston, a piston rod, an upper end cover and a lower end cover; the punching mold consists of a punch pin and a die; the piston rod extends outwards via the lower end cover and is integrated with the punch pin. The automatic puncher is characterized in that a buffer spring is arranged in the middle of the part of the piston rod, which extends outwards, the upper end cover and the lower end cover are respectively provided with a venting passage, and one end of each venting passage is connected with an air compressor while the other end of each venting passage extends into the cylinder barrel. The utility model has simple structure, high automation degree, abrasion and press resistance and long service life, and can be widely used for punching various hole slots.

Description

Automatic punch

Technical field

The utility model relates to a kind of punching machinery, especially relates to a kind of automatic punch.

Background technology

In the prior art, the method for punching on sheet material mainly contains two classes: a class is manual operations, promptly directly stamps out slotted eye by shaper on sheet material by hand.This method exists that labour intensity is big, efficient is low, be unfavorable for producing in batches and can't the bigger limitation such as sheet material of punching press hardness; Another kind of is to adopt mechanical work, promptly drives shaper by actuating unit and stamp out slotted eye on sheet material.Disclose a kind of name as Patent Office of the People's Republic of China on June 2nd, 2010 and be called " a kind of novel portable pneumatic punching machine ", notification number is the utility model patent of " CN 201493376 U ", this patent promotes elbow-bar mechanism by the piston rod on the cylinder, thereby the connecting rod on the elbow-bar mechanism promotes drift stamps out corresponding slotted eye on sheet material, promote the piston rod displacement by aerodynamic force during this patent punching, utilizing the disk spring promotion elbow-bar mechanism counter motion that is installed on the connecting rod to promote piston rod indirectly after the punching resets, finish the one-off hole-piercing operation, this patent has quick action, the advantage that punching press strength is bigger, can realize the automation punching, but still exist can't punching press hardness bigger sheet material and service life short limitation.

Summary of the invention

For overcoming the limitation of prior art, the purpose of this utility model is to disclose a kind of automaticity height, long service life, simple in structure, easy to operate puncher.

For achieving the above object, the utility model adopts following technical scheme: promptly this automatic punch includes power set, perforating mold and pedestal, and described power set, punching die are installed on the pedestal successively along same axis from top to bottom.

Described power set are made up of cylinder barrel, piston, piston rod, upper and lower end cap, upper and lower end cap connects into the cylinder of sealing by bolt and cylinder barrel, piston and piston rod are fixedly connected into along shaft section and are " T " font or overlapping " T " font structure and are installed in cylinder barrel inside by sealing ring, piston rod stretches out by bottom end cover and fuses with punch, the piston rod extension that stretches out is provided with buffer spring, upper and lower end covers and is respectively equipped with venting channels, this venting channels one end is connected with air compressor, and the other end extends to cylinder barrel inside.

Punching die is made up of punch, die, and punch is installed in piston-rod lower end, and die is installed on the pedestal correspondence position.

Adopt said structure, gas is entered cylinder and is promoted piston to bottom offset by the venting channels of air compressor by upper end cover, and punch to bottom offset, just can stamp out the slotted eye of different shape as required under the synchronous promotion of piston rod; Then, gas is entered cylinder and is promoted piston to top offset by the venting channels of air compressor by bottom end cover, and punch is got back to initial position under the drive of piston rod, just finishes the one-off hole-piercing operation.

Said structure compared with prior art has following advantage:

1, simple in structure, the automaticity height.Being arranged on the venting channels that upper and lower end covers is inlet channel, it also is the exhaust passage, during punching press, the venting channels of upper end cover is an inlet channel, the venting channels of bottom end cover is the exhaust passage, and during recovery, the venting channels of upper end cover is that the venting channels of exhaust passage, bottom end cover is an inlet channel, need not additionally to be provided with air bleeding valve, simple in structure; Simultaneously, by the qi of chong channel ascending adversely circuit and the frequency of control extraneous air compressor, just can realize the frequency and the speed of punching, automaticity height automatically;

2, stamping pressure is big, applicability is strong.The utility model adopts pneumatic cylinder as power set, and stamping pressure is big, is suitable for the big sheet material of punching press hardness or thickness; Can also adjust the pressure of air compressor simultaneously according to the needs of different hardness and thickness sheet material, applicability is strong;

3, long service life.The utility model stretches out at piston rod and partly is provided with buffer spring, avoids piston rod to clash into upper end cover because of pressure is excessive when resetting, and prolongs the service life of cylinder greatly.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and embodiments.

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

Automatic punch as shown in Figure 1, by pneumatic power-actuated power set 1, perforating mold 2 and pedestal 3, described power set 1, punching die 2 are installed on the pedestal 3 successively along same axis from top to bottom.

Described power set 1 are by cylinder barrel 11, piston 12, piston rod 13, on,

bottom end cover

10,14 form, on,

bottom end cover

10,14 connect into the cylinder of sealing by bolt and cylinder barrel 11, piston 12 and piston rod 13 are fixedly connected into along shaft section " T " font structure and be installed in cylinder barrel 11 inside by sealing ring in an overlapping, piston rod 13 stretches out by bottom end cover 14 and fuses by screw thread and punch 21, piston rod 13 stretches out and is provided with buffer spring 15 in the middle of the extension, buffer spring 15 positions by setscrew nut 16, on, bottom end cover 10, be respectively equipped with venting channels 18 on 14,19, this venting channels one end is connected with air compressor, and the other end extends to cylinder barrel inside.

Punching die is made up of punch 21, die 22, and punch 21 is installed in piston rod 13 lower ends by screw thread, and die 22 is installed on the correspondence position of pedestal 3 by bolt.

Certainly, as other embodiment of the present utility model, buffer spring can be helical spring, ring spring or disk spring.

Claims

1. an automatic punch includes power set, perforating mold and pedestal, and described power set, punching die are installed on the pedestal along same axis from top to bottom successively; Described power set are made up of cylinder barrel, piston, piston rod, upper and lower end cap, upper and lower end cap connects into the cylinder of sealing by bolt and cylinder barrel, piston and piston rod are fixedly connected into along shaft section and are " T " font or overlapping " T " font structure and are installed in cylinder barrel inside by sealing ring, and piston rod stretches out by bottom end cover and fuses with punch; Punching die is made up of punch, die, and punch is installed in piston-rod lower end, and die is installed on the pedestal; It is characterized in that: piston rod stretches out and partly is provided with buffer spring, and described upper and lower end covers and is respectively equipped with venting channels, and this venting channels one end is connected with air compressor, and the other end extends to cylinder barrel inside.

2. automatic punch as claimed in claim 1, it is characterized in that described buffer spring by setscrew nut be positioned at piston rod stretch out the part top.

3. automatic punch as claimed in claim 1 is characterized in that described buffer spring can be helical spring, ring spring or disk spring.