Be applicable to the double-toggle formula linkage of forcing press
The utility model relates to a kind of linkage, particularly relates to a kind of double-toggle formula linkage that is applicable to forcing press.
Forcing press still occupies suitable critical role in industry now, auto industry, mechanical industry and light industry all need be finished part processing by forcing press such as.
Consult Fig. 1, be existing a kind of forcing press 7, comprise a support 71, the slide block 72 that can move back and forth up and down to be arranged at this support 71, one drives driver element that this slide block 72 moves 73, a crank axle 74 that is connected with this driver element 73, and the connecting rod 75 of this crank axle 74 of connection and this slide block 72.Drive this crank axle 74 by this driver element 73 and rotate, just can order about this slide block 72 and move back and forth up and down and then materials and parts are carried out punching press.
Though above-mentioned forcing press 7 can move back and forth up and down and carries out punching press action by this slide block 72, but because this slide block 72 only is connected by a connecting rod 76 with 74 of this crank axles, so when this slide block 72 when carrying out punching press, if being subjected to the mould of punching press is not to be positioned at this slide block 72 central authorities, then can produce the situation that there is unbalance stress this slide block 72 and these connecting rod 76 junctions, causing this slide block 72 is that the center produces the beat on the angle with this connecting rod 76, just produce so-called eccentric load, so, with make these slide block 72 slippages have some setbacks and influence the materials and parts punching press after the precision of finished product.
The utility model content
The purpose of this utility model is that a kind of duplex formula linkage that is applicable to forcing press that can improve the pressed part precision is being provided.
The utility model is applicable to that this forcing press of forcing press that the double-toggle formula linkage of forcing press is suitable for comprises a support, and a slide block and a driver element of being arranged at this support, and this double-toggle formula linkage comprises two gear units.Described gear unit along continuous straight runs is connected in this slide block in regular turn, and respectively comprise a bent axle that is operatively connected to this driver element, a toggle, a crank that connects this bent axle and this toggle, a guide pillar that connects this toggle and this slide block, wherein, this toggle has a top link and a following swing arm, this top link has a stiff end that is rotationally connected with this support, and link that is rotationally connected with this time swing arm one end, this time swing arm has a drive end that is rotationally connected with this guide pillar, and the driver element of this forcing press drives described gear unit and orders about this slide block and move up and down.
The beneficial effects of the utility model are: link the eccentric load that is produced in the time of can reducing this slide block punching press, and then the precision of raising pressed part with this slide block by described gear unit along continuous straight runs with being provided with in regular turn.
Description of drawings
Fig. 1 is a stereogram, and existing a kind of forcing press is described;
Fig. 2 is a stereogram, illustrates that the utility model is applicable to that the double-toggle formula linkage of forcing press is applied to a preferred embodiment of a forcing press;
Fig. 3 is a front-view schematic diagram, and the situation when two gear units do not drive a slide block and move is described;
Fig. 4 is a right side schematic diagram, and a driver element of this forcing press and the connection relationship of a bent axle are described;
Fig. 5 is a profile along Fig. 3 center line V-V, and the configuration relation of two power transmission shafts of described gear unit is described;
Fig. 6 is the view of a similar Fig. 3, and the situation when described gear unit drives this slide block and moves is described.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
Consult Fig. 2,4, the utility model is applicable to that the forcing press 1 that a preferred embodiment of the double-toggle formula linkage of forcing press is suitable for comprises a support 11, and a slide block 12 and a driver element 13 of being arranged at this support 11, wherein, this driver element 13 comprises an alternating current motor 131, flywheel 132, belt that connects this alternating current motor 131 and this flywheel 132 133, a power transmission shaft 134 that is connected with this flywheel 132, and one is fixed in a bent axle 21 of this double-toggle formula linkage and the reduction gearing 135 that meshes with this power transmission shaft 134.
Consult Fig. 3～5, this double-toggle formula linkage comprises two gear units 2, described gear unit 2 along continuous straight runs are connected in this slide block 12 in regular turn, and respectively comprise the bent axle 21 of a driver element 13 that is operatively connected to this forcing press 1, toggle 22, crank that connects this bent axle 21 and this toggle 22 23, a guide pillar 24 that is connected this toggle 22 and this slide block 12, and synchromesh gear 25 affixed with this bent axle 21, wherein, described bent axle 21 distance to each other is less than described toggle 22 distance to each other.This toggle 22 has a top link 221 and a following swing arm 222, this top link 221 has a stiff end 223 that is rotationally connected with this support 11, and a link 224 that is rotationally connected with an end of this time swing arm 222, this time swing arm 222 has a drive end 225 that is rotationally connected with this guide pillar 24.This crank 23 has a pivot end 231.Described synchromesh gear 25 is to be meshing with each other and one of them synchromesh gear 25 is driven by this driver element 13.
Consult Fig. 3,4,6, during this forcing press 1 running, alternating current motor 131 by this driver element 13 drives this power transmission shaft 134 rotations, and make 25 rotations of described synchromesh gear by these reduction gearing 135 transmissions, simultaneously, the bent axle 21 of each gear unit 2 is rotation synchronously also, make that the pivot end 231 of this crank 23 is to follow fixation locus to move back and forth, and drive this toggle 22 on, following swing arm 221,222 uphold, fold, see through these guide pillar 24 these slide blocks 12 of drive at last and move back and forth up and down, and then make a mould (figure does not show) that is installed on this slide block 12 carry out punching press materials and parts.
On this slide block 12, form two application points with these slide block 12 bindings by described gear unit 2 along continuous straight runs with being symmetrical arranged, therefore, can balancedly drive when carrying out punching press this slide block 12 moves up and down, produce in the time of can also avoiding these slide block 12 punching presses as the problem of these slide block 72 eccentric loads in the past, and then improve the precision of pressed part.
The above, it is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented with this, all simple equivalent of being done according to the utility model claim and utility model description change and modify, and all still belong to the scope that the utility model patent contains.