CN1197726A

CN1197726A - Punching machine

Info

Publication number: CN1197726A
Application number: CN 98101092
Authority: CN
Inventors: 布鲁诺·瓦利
Original assignee: Atom SpA
Current assignee: Atom SpA
Priority date: 1997-03-26
Filing date: 1998-03-26
Publication date: 1998-11-04
Also published as: ITMI970713A1; IT1290479B1

Abstract

A punching machine (10) includes: a substrate (12) with the upper end extending into a machine frame (12') for supporting a worktable (14); a rotatable punching head (16) and a vertical column (18) for supporting and moving the punching head which is driven by a liquid power unit and slide in a seat (20) in the substrate (12) and the machine frame (12'). The vertical column (18) has a round lower part (26) linked with a flange (28); the flange is limited by a jar shape member (32) and is disposed with a lower part (36) forming an annular cavity on the top end position.

Description

Punch press

The present invention relates to a kind of punch press.

The present invention more particularly relates to a kind of punch press of rotatable ram type, and drift becomes an integral body with a column that slides in pedestal, carry out the operation of this punch press by the lower end of column.

A kind of punch press of known type has a drift that protrudes from workbench usually, and the vertical motion of this drift is realized by a column that slides in lathe base.This column and drift are integral, its rise and decline are driven by a power unit, this power unit drives the fluid of combination and presses photography posture system, thereby this system is made up of a piston, flange and a series of assemblies of realizing its entire combination relevant with this system usually.

Be appreciated that, it is very complicated that the photography support that is used for driving the column motion is made the formula system, owing to form the existence of a large amount of elements of this system, make having tangible difficulty aspect the management of structure, assembling and parts and the maintenance, will inevitably cause the expensive of product and periodic fault subsequently.

The objective of the invention is to overcome above-mentioned shortcoming.

Purpose of the present invention more specifically provides a kind of punch press, and especially rotatable ram type punch press makes to need not to press photography posture machinery structure to realize the mobile of drift with independent and complicated fluid.

A further object of the invention provides a kind of punch press, and it is suitable for guaranteeing high-level bearing capacity and stability in the working time, and can realize easily and economically.

These and other purpose all can be reached by punch press of the present invention.This punch press comprises: a pedestal, and it upwards extend in the frame of a supporting table; Rotatable drift and one are used for the column of this drift of supporting and moving, it presses the power unit drives by a fluid, slide at a seat that is arranged in pedestal and frame, wherein, this column has a rounded lower portion and connects with a flange, this flange is by a part constraint that is cylinder shape substantially, and the position is provided with one and surrounds an annular chamber than lower part in the top.

By means of following description, can understand the structure and the design feature of punch press of the present invention better, wherein accompanying drawing has been represented a non-limiting most preferred embodiment as a reference.This:

Fig. 1 schematically shows a side elevation in partial section of punch press of the present invention.

With reference to this figure, punch press of the present invention is whole represents that with label 10 its basic comprising is: a pedestal, it upwards extend into a frame 12 that is used for supporting table 14 ' in; A drift 16; With a column 18, it supports at an upper portion thereof in this drift and present 20 and vertically slides.These seat 20 parts in pedestal 12, a part protruding upward in the part 14 at pedestal.Way that drift 16 usefulness are known and column 18 connect together, and workbench 14 cantilevers stretch out relatively, to moving down mobile and doing the self-alignment voltage stabilizing, press to the punch that is located on this workbench along a parallel plane, are positioned at the leather or the material of punch top with cut-out.The rising of column 18 drive drifts 16 and decline press the power unit by a unshowned existing fluid and finish, this operator of moving through of column presses conventional push button and can realize, simultaneously, realize the angular displacement of drift by a handle 22 with respect to workbench 14.Usually this covering one deck unit of plastic 14 above workbench 14 ', the cutting that is used for absorbing pressurized punch when cutting off material is impacted.Rear portion at this workbench 14 is provided with a common bearing 24 for cutting material.

According to the present invention, what be used for driving drift 16 slides element or column 18, from its bottom, is provided with the rounded lower portion that a usefulness 26 is represented and described in detail subsequently, is the effect of leading push rod that moved up and down of this column.The bottom 26 of column 18 is connected on the flange 28 by common screw thread and/or bolt 30 or other equivalent means.Structurally, this flange is restrained and be pressed in the cup shell 32 that is cylinder substantially as moving piston with respect to the bottom 26 of column 18, this cup shell has a lower limit seat 32 ' and top, and this top diameter is smaller, forms a step 38.Part 32 along the circumferential direction is provided with two or more holes, preferred 3 holes are arranged with hexagonal angle, are used for holding corresponding bolts 34, the threaded shank 34 of this bolt 34 ' with its termination and equal number be located at pedestal 12,12 ' on, particularly be located at frame 12 ' basal plane on screwed hole connect.This frame inner wall constitutes a seat 20 to be used for holding and slip column 18.Flange 28 part in the top is provided with a lower position 36, forms an annular chamber.From then on the pressure fluid that comes from the power unit of punch press 10 flows into, and as schematically expressing among Fig. 1, this annular chamber 36 is made of a very small region, and column 18 is in the state that rises fully.Under this state, surface or its top base of flange 28 contact with the upper step 38 of part 32 basically.The zone or the cavity 40 that form between the bottom 26 of the column 18 in sliding against seat 20 and the fore-end that part 32 exposes, by general loop directly or indirectly with the cavity UNICOM that constitutes by bottom 36, in order to the pressure fluid that provides by power unit alternately to be provided.In the graphic representation of Fig. 1, this zone or cavity 40 are in the maximum volume state, column 18 rises fully, rise or descend for making column 18 and driving drift 16, pressure fluid replaces by just realizing by means of a kind of fluid force distributor of known type or the suitable device of equivalence from cavity 36 or cavity 40.Its advantage is that this pressure fluid guarantees with elastic metallic sealing ring or

equivalent device

42,44 in the sealing of arbitrary cavity.The sealing ring is located in the special circumferential groove on the part 32, abuts against on the column 18 and/or is positioned on the flange 28, near the part 32 that is cylinder shape substantially.

The

pedestal

12,12 that punch press of the present invention also slides therein for column 18 ' in seat 20 a kind of enforced lubricating system is provided.This be because: the material that constitutes said elements is preferably the same, all is iron, and carries out identical known heat treatment.For this purpose,, in this column, be provided with the

cave groove

46,48 of linearly extended different length from the basal plane of the bottom 26 of column 18, they by radial slot 46,48 ' with communicate by sliding seat 20 walls that form.At least one above-mentioned cave groove 46 stretches into one on column and limits length, for example between 20 and 40 millimeters; Correspondingly, have at least an above-mentioned cave groove 48 to extend into 18 1 bigger length of column, such as between 200 and 250 millimeters.This cave groove 48 is by radial slot 48 ' link to each other with the side channel 50 of vertical extension, lead to again pedestal 12 and/or 12 ' in, and parallel with seat 20, the upper end of this side channel 50 ends in the annular seating 52, is beneficial to the circulation of the lubricating fluid that may suck.Obviously, also be provided with a kind of connection of known class, make this lubricating fluid that is inhaled into 2 flow back into fluid and press the joining fuel tank in power unit from side channel 50.

Deducibility goes out from above narration, and the advantage that the present invention possesses is apparent.

By means of the concrete structure of the column of movable punching head, punch press of the present invention need not to use independently Assisted tomography posture machinery, this machinery bring difficulty for construction and maintenance process, and inevitable Ground has increased cost.

Although aforesaid and the present invention as requiring subsequently only carries by means of an example Go out, but this invention allows many multi-form of inventive concept range that are attributable to.

For example, be used for to connect and the bottom of the column of movable punching head and/or realize the connection of its motion Device can have being different to be described for example and illustrated structure, improves structure and/or be coupled to each other system.

Claims

1. a punch press (10) comprises a pedestal (12), and its upper part extend in the frame (12 ') that is supporting workbench (14); A rotatable drift (16); A column (18) that is used for the described drift of supporting and moving, it presses the power unit drives by a fluid, slide at a seat (20) that is arranged in described pedestal (12) and frame (12 '), it is characterized in that column (18) has a rounded lower portion (26) that connects with a flange (28); Flange (28) is by part (a 32) constraint that is cylinder shape substantially, and in the top the position be provided with one form an annular chamber than lower part (36).

2. punch press according to claim 1 is characterized in that, described bottom (26), (36) press directly and alternately UNICOM of power unit with the fluid of driving pressure fluid respectively.

3. according to the described punch press of above arbitrary claim, it is characterized in that, substantially the part (32) that is cylinder shape has a cup-shaped structure, has lower limit seat (32 ') and the top that diameter is slightly little, and the latter is that the top base of flange (28) forms a step (38).

4. according to the described punch press of above arbitrary claim, it is characterized in that described flange (28) is connected in the bottom of column (18) by screw thread and/or bolt (30).

According to above arbitrary claim this punch press, it is characterized in that, substantially the part (32) that is cylinder shape along the circumferential direction is provided with two or more holes and is used for holding corresponding double-screw bolt (34), the threaded shank (34 ') of bolt (34) connects with the screwed hole that is located at pedestal (12), (12 ') bottom of equal number with its termination, and pedestal forms holding of column (18) and slides seat with its inside.

6. according to the described punch press of a up claim, it is characterized in that the part (32) and/or the flange (28) that are cylinder shape substantially have an annular excircle groove at least, are used for holding at least one metal elastic-sealed ring (42), (44) or like.

7. according to the above described punch press of a claim that makes, it is characterized in that, the bottom basal plane of column (18) is provided with at least one linearly extended cave groove (46) and/or (48), by a radial slot (46 ') and/or (48 ') with communicate as the seat (20) that slides.

8. according to the described punch press of above arbitrary claim, it is characterized in that, the described basal plane of column (18) bottom is provided with at least two linearly extended cave grooves (46) and (48), separate each other and have a different length, they communicate with described seat (20) by radial slot (46 ') and (48 ') separately.

9. according to the described punch press of above arbitrary claim, it is characterized in that, two straight lines extend cave grooves (46) and (48) and have at least one to communicate with the side channel (50) of a vertical extension by its radial slot (46 ') or (48 ') separately, side channel (50) is provided with along pedestal (12) and/or (12 ') and is parallel to seat (20), and its upper end ends in the annular seating (52).

10. according to the described punch press of above arbitrary claim, it is characterized in that, the casing UNICOM of described side channel (50) and fluid, and fluid presses the power unit drives by fluid and and circulate.