CN101992560B

CN101992560B - Press machine

Info

Publication number: CN101992560B
Application number: CN201010226956.5A
Authority: CN
Inventors: 木下洋; 佐藤宏秀; 宫坂卓嗣
Original assignee: Komatsu Industries Corp
Current assignee: Komatsu Industries Corp
Priority date: 2009-08-06
Filing date: 2010-07-12
Publication date: 2013-10-16
Anticipated expiration: 2030-07-12
Also published as: CN101992560A; JP5296631B2; JP2011031299A

Abstract

A press machine including a slider (5) that transmits rotation of a main shaft (4) via a rocking lever drive mechanism (7), the rocking lever drive mechanism (7) comprising: a swing lever (10) provided with an insertion hole (12) through which the main shaft (4) is slidably inserted, and having an upper arc surface (15) and a lower arc surface (16) having the same curvature center (O); a cap (20) which is fixed to the slider (5) so as to be attachable and detachable, and which slidably supports the upper arc surface (15) by an arc surface (27) having the same curvature radius as the upper arc surface (15); a block body (30) which is detachably fixed to the slider (5) and slidably supports the lower arc surface (16) by an arc surface (32) having the same curvature radius (R1) as the lower arc surface (16), and the distance (L1) between the center (Ox) of the insertion hole (12) and the curvature center (O) and the curvature radius (R1) of the lower arc surface (16) are changed by replacing the swing lever (10), the cap (20) and the block body (30).

Description

Press

Technical field

The present invention relates to a kind of press.

Background technology

The known swing arm driving mechanism that slide block is moved up and down that is useful on of press in the past is arranged on the interior structure (for example, document 1:JP JP 51-031975 communique, document 2:JP JP 2006-035230 communique, document 3:JP JP 2008-296278 communique) of this slide block.The swing arm driving mechanism of this press comprises by the rotation of the eccentric part of main shaft inserts logical swing arm freely, swing by swing arm absorbs the slide block displacement in the horizontal direction that the rotation because of main shaft causes, and only drives slide block at above-below direction thus.

This press is housed in the slide block owing to the swing arm driving mechanism, so compare with the press that has driving mechanism in the top above slide block, can reduce whole height, for example in rising limited factory building, also can easily arrange, also be suitable in addition the little machine of pressure capability.

Yet, in the press described in the document 1～3, be merely able to move to drive slide block by the slide block that the shape by slide block and swing arm determines, and can't freely change the slide block action.Thereby, low speed ground drives the pull and stretch processing of slide block and near the press that shaping is processed the press of usefulness and also drive at a relatively high speed the fine-edge blanking processing usefulness of slide block lower dead center near for example needing to be provided in independently respectively lower dead center, and this is uneconomic.

Summary of the invention

The object of the present invention is to provide a kind of by necessary MIN part replacement, even 1 the swing arm driving machine configuration press that also can at random set slide block action.

Press of the present invention is characterized in that, comprising: the rotary power by drive source drives and the main shaft of rotation; The slide block that moves up and down with coming the rotation of described main shaft via the transmission of swing arm driving mechanism, described swing arm driving mechanism comprises: swing arm, it has by the eccentric part of described main shaft inserts sliding freely logical inserting hole and is in upper-lower position and center of curvature top arc surface and bottom arc surface consistent with each other, and follows the rotation of described main shaft and swing; Cap, it supports sliding freely described top arc surface by the arc surface with described top arc surface same curvature radius and dismounting is fixed on the described slide block freely; And block, it supports sliding freely described bottom arc surface by the arc surface with described bottom arc surface same curvature radius and dismounting is fixed on the described slide block freely, changes respectively the distance between centers at center of the described center of curvature and described inserting hole and the radius of curvature of described bottom arc surface by described swing arm, described cap, described block are changed from Tathagata.

According to the present invention, by preparing and change distance between centers and radius of curvature different multiple swing arm and cap, the block corresponding with this swing arm, even do not change this large-scale parts of slide block and main shaft, also can easily realize arbitrarily slide block action, thereby can tackle reliably multiple processing type by enough 1 press.

Can have the cap main body section of the described top of supporting arc surface and the spacing member of the setting height(from bottom) of the described cap main body of adjusting section by making described cap of the present invention, public described cap main body section and dismounting or change described spacing member change the radius of curvature of described distance between centers and described bottom arc surface.

Relative therewith, also can by described cap of the present invention being replaced with height dimension another cap different from this cap of the arc surface that described top arc surface is supported, change the radius of curvature of described distance between centers and described bottom arc surface.

According to the present invention, in the structure of the height by spacing component for adjusting cap, as long as prepare the different spacing member of a plurality of height dimensions, therefore in the keeping of parts etc., do not need large-scale place, can be convenient to manage.

On the other hand, when changing the height dimension of cap self, can deal with by the integral replacing cap, no longer need the spacing member, the operation of components when changing operation is easy.

Description of drawings

Fig. 1 is the front view of the press of expression an embodiment of the present invention;

Fig. 2 is the figure of the slide block action of the described press of expression;

Fig. 3 is the front view of another specification of the described press of expression;

Fig. 4 is the exploded perspective view of major part of the press of another specification of expression;

Fig. 5 is the figure that the slide block of the press of another specification of expression moves;

Fig. 6 is the exploded perspective view of expression variation of the present invention.

The specific embodiment

Below, based on the description of drawings one embodiment of the present invention.

Among Fig. 1, press 1 is the more small-sized press of pressure capability about from tens tons to tens tons, specifically, comprise: erect the framework 2 that the pair of metal plate that arranges consists of by in the drawings side, the left and right sides, base 3 by the case shape that consists of across the metallic plate of the front and back that arrange in the lower side of framework 2, by the axle support that consists of across the metallic plate that arranges and omit illustrated front and back in the upper side of framework 2, plug in the main shaft 4 of axis support, the slide block that the under casing shape is arranged 5 by the rotary actuation of main shaft 4, be configured in the backing plate 6 on the top of base 3, the rotation of main shaft 4 passes to slide block 5 via swing arm driving mechanism 7.

In the upper side of framework 2, at opposed left and right sides internal face, be provided with the panel 8 that has along the vertical direction specific length.Panel 8 forms towards the cross section of central opening コ font, and the 5A of guide plate section of slide block 5 embeds this opening portion, and the 5A of guide plate section is directed being bearing in the panel 8 via not shown guiding elements.

Lower surface at slide block 5 is equipped with not shown patrix, at the upper surface of backing plate 6 not shown counterdie is installed.The co-operating of the upper and lower mould that moves up and down by following slide block 5 is implemented pressure processing to workpiece such as plates.The pressure processing of the press 1 of present embodiment is fine-edge blanking processing etc.In addition, when adopting plate metal derby in addition as workpiece, press 1 can be applied to forge hot and press.

In addition, be provided with the drive sources such as the electro-motor of drive shaft 4 rotations or hydraulic motor in the rear side of framework 2, be provided with for the controller of control drive source in the side of framework 2 etc.Wherein, above-mentioned drive source and controller and to have drive source and a controller that the general press of equal pressure capability adopts roughly the same are known device, so omit diagram and explanation to them herein.

Then, the swing arm driving mechanism 7 that drives slide block 5 is elaborated.

Swing arm driving mechanism 7 is housed in the slide block 5, comprises the block 30 that is swung the lower side of the cap 20 of the upper side of inserting freely logical swing arm 10, supporting swing arm 10 and supporting swing arm by the eccentric part 4A of main shaft 4.

Swing arm 10 integral body form hangs mitriform.Central authorities' embedding at swing arm 10 has sleeve 11 cylindraceous, and is provided with the slotting logical inserting hole 12 by the eccentric part 4A of main shaft 4.In swing arm 10, become and cap 20 chimeric fitting portion 13 sliding freely with respect to the upper side of inserting hole 12.On the other hand, in swing arm 10, become and block 30 abutting part 14 of butt sliding freely with respect to the lower side of inserting hole 12.When swing arm 10 Integral swinging, fitting portion 13 slides along the top arc surface 15 of its periphery, and abutting part 14 slides along the bottom arc surface 16 of its periphery.That is to say, the center of curvature O of top arc surface 15 and bottom arc surface 16 is identical, and this center of curvature O also is the oscillation center of swing arm 10.

Cap 20 by across be arranged on slide block 5 about cap main body section 21 between the upper end and the chimeric support 22 of fitting portion 13 of supporting swing arm 10 consist of, each

several part

21,22 connects by bolt 23 each other.Be provided with in the left and right sides of cap main body section 21 and be positioned on the slide block 5 and by the fixing fixed part 25 of bolt 24.Cap 20 can be by mounting or dismounting bolt 24 with respect to slide block 5 loading and unloading.Be provided with concavity section 26 towards lower opening at chimeric support 22.The fitting portion 13 of chimeric swing arm 10 in the concavity section 26, the top arc surface 15 of fitting portion 13 contacts with the arc surface 27 of concavity section 26, slides in by these arc surface 27 supportings.The radius of curvature of the top arc surface 15 centered by center of curvature O is identical with the radius of curvature of arc surface 27.

Block 30 is arranged on the bottom surface of slide block 5.Be provided with concavity section 31 towards upper opening at block 30, the bottom arc surface 16 of swing arm 10 and arc surface 32 butts of this concavity section 31, when being in contact with one another, arc surface 16,32 slides, at this, in press 1, arc surface 16,32 the radius of curvature i.e. radius of curvature of the swing arm centered by center of curvature O 10 are set as R1, and the distance between centers of the center O x of center of curvature O and inserting hole 12 is set as L1.That is, in the present embodiment, adopted have distance between centers L1, the swing arm of radius of curvature R 1 10 and the block 30 corresponding with it.

In the slide block 5 that contains above swing arm driving mechanism 7, about the rising portions of the side wall portion 5B that arranges be arranged with and connect the inside and outside peristome 5C of slide block 5, be provided with oil sump tank 5D in the outside of peristome 5C.To supplying lubricating oil between the arc surface 15,27 of swing arm 10 and fitting portion 13, to also supplying lubricating oil between the arc surface 16,32 of swing arm 10 and block 30, but the lubricating oil of supplying with can because of the swing of swing arm 10 from flowing to the bottom surface of slide block 5 between the arc surface 15,27, also can flow to from drawing between the arc surface 16,32 bottom surface.The lubricating oil that flows to the bottom surface is collected by oil sump tank 5D by peristome 5C, is recovered to the lubricating can by discharge pipe 5E from oil sump tank 5D again.

Then, the action of slide block 5 described.

Shown in Fig. 1 is the state that slide block 5 is positioned at lower dead center, but because pressure processing front-slider 5 is positioned at top dead centre certainly, makes main shaft 4 to arrow C W direction rotation so be actually from the state that is positioned at top dead centre, initiation pressure processing.When the state that is in top dead centre from slide block makes main shaft 4 rotation, follow this rotation, swing arm 10 begins to swing to the arrow A direction, and meanwhile slide block 5 begins to descend.

Reach after the anglec of rotation of regulation at main shaft 4 and the anglec of rotation of main shaft 4 reached before 180 °, at this moment swing arm 10 is to swing to the arrow B direction, and slide block 5 continues to descend.Reach 180 ° the moment in the anglec of rotation, swing arm 10 is got back to initial position, and slide block 5 arrives lower dead center.This position as shown in Figure 1.

Further make main shaft 4 continuously to arrow C W direction rotation if arrived the state of lower dead center from slide block 5, then follow this rotation, swing arm 10 is crossed initial position, continues to swing to the arrow B direction, and meanwhile slide block 5 transfers to rise.Reach after the anglec of rotation of regulation at main shaft 4 and the anglec of rotation reached before 360 °, swing arm 10 is to the backswing of arrow A direction, and slide block 5 continues to rise.Reach 360 ° the moment in the anglec of rotation, swing arm 10 is got back to initial position, and slide block 5 is got back to top dead centre.

The slide block action of above slide block 5 as shown in Figure 2.

Be set as in the press 1 of present embodiment that L1, radius of curvature be set as R1 at distance between centers, at slide block 5 slow decreasings near lower dead center, arrive near the lower dead center after by lower dead center, again then rise during, the anglec of rotation of main shaft 4 is minimum.Near the short press 1 of time that this slide block 5 rests on the lower dead center is suitable for fine-edge blanking processing and forge hot, can also be applied to require the short-period continuous automatic press of contracting.

Fig. 3 illustrates the press 1 of another specification of present embodiment.

In this press 1, (L1＜L2), radius of curvature are set as the R2 (swing arm 10 of the longer size of R1＜R2), and adopted cap 20 and the block 30 corresponding with this radius of curvature R 2 to have adopted distance between centers to be set as L2.

Be used for and caps 20 that the swing arm 10 of long size is corresponding comprise a pair of spacing member 28 between the fixed part 25 of the upper end that is installed in slide block 5 and cap main body section 21.Spacing member 28 also has expression in Fig. 4, be rectangular-shaped, and the bolt 24 by longer size tightens together with cap main body section 21, and is fixed on the slide block 5.Can regulate the setting height(from bottom) of cap main body section 21 by this spacing member 28.

The shape of the cap main body section 21 of the shape of slide block 5, cap 20 and the shape of chimeric support 22 and other members is identical with respective shapes in the press 1 shown in Figure 1.And, in Fig. 1, press 1 shown in Figure 3, all be that the opening portion of framework 2 tops is covered by identical top cover 2A, in the inner space of the framework 2 that is covered by top cover 2A, take in cap 20.Thereby the whole height of each press 1 is identical.

The slide block action of the slide block 5 in the press 1 shown in Figure 3 shown in Fig. 5.

Be set as L2 at distance between centers, radius of curvature is set as in the press 1 of R2, near slide block 5 drops to lower dead center more hastily, pass through afterwards lower dead center near arriving lower dead center, during transferring again to rise, the anglec of rotation of main shaft 4 is very big, and near the time that slide block 5 rests on the lower dead center is long.This press 1 is suitable for pull and stretch processing, shaping, plate forges and other high accuracy is shaped.

As described above, in 1 press 1, only need prepare the so necessary MIN parts of the different swing arm 10 of a plurality of distance between centers L1, L2 and radius of curvature R 1, R2 and the cap 20 corresponding with it and block 30 and change, just can significantly change the slide block action of slide block 5, thereby can tackle multiple processing type by enough 1 press.

In addition, the present invention also comprises the distortion in the scope that can realize the object of the invention outside the explanation in the above embodiment.

For example, in the press 1 shown in Fig. 3 of above-mentioned embodiment, as and the cap 20 of employing corresponding with the swing arm 10 of long size, used the structure that possesses a pair of spacing member 28, but be not limited to this, also can be as shown in Figure 6, adopt height dimension H2 from the lower surface of the fixed part 25 that arranges at cap main body section 21 two ends to arc surface 27 greater than the structure of height dimension H1 shown in Figure 1.Cap main body section 21 shown in Figure 6 can be construed to the spacing member 28 that will illustrate in the above-mentioned embodiment as the structure that the fixed part 25 of cap main body section 21 is wholely set in advance, can easily tackle by integral replacing cap main body section 21.

In the above-described embodiment, illustrated that slide block moves visibly different 2 press 1, but also can realize arbitrarily slide block action by appropriate change distance between centers and radius of curvature.

Claims

1. a press is characterized in that, comprising:

Rotary power by drive source drives and the main shaft of rotation; With

The slide block that is driven by the rotation of the described main shaft that comes via the transmission of swing arm driving mechanism and move up and down,

Described swing arm driving mechanism comprises:

Swing arm, it has by the eccentric part of described main shaft inserts sliding freely logical inserting hole and is in upper-lower position and center of curvature top arc surface and bottom arc surface consistent with each other, and follows the rotation of described main shaft and swing;

Cap, it supports sliding freely described top arc surface by the arc surface with described top arc surface same curvature radius and dismounting is fixed on the described slide block freely; With

Block, it supports sliding freely described bottom arc surface by the arc surface with described bottom arc surface same curvature radius and dismounting is fixed on the described slide block freely,

By being changed from Tathagata, described swing arm, described cap, described block change respectively the distance between centers at center of the described center of curvature and described inserting hole and the radius of curvature of described bottom arc surface.

2. press according to claim 1 is characterized in that,

Described cap has the cap main body section of the described top of supporting arc surface and the spacing member of the setting height(from bottom) of the described cap main body of adjusting section,

Public described cap main body section and dismounting or change described spacing member.

3. press according to claim 1 is characterized in that,

Described cap is replaced with height dimension another cap different from this cap of the arc surface that described top arc surface is supported.