CN2767003Y

CN2767003Y - The lower jacking device of the punch press

Info

Publication number: CN2767003Y
Application number: CN 200520002332
Authority: CN
Inventors: 白国勋; 邱淞
Original assignee: Chin Fong Machine Industrial Co Ltd
Current assignee: JINFENG MACHINE INDUSTRY Co Ltd
Priority date: 2005-02-04
Filing date: 2005-02-04
Publication date: 2006-03-29
Anticipated expiration: 2015-02-04

Abstract

A lower ejector device of a punch press comprises a transmission wheel driven by a power shaft, a crank pivoted at an eccentric position of the transmission wheel, a push piece that can move up and down relative to a platen, a plurality of ejector rods mounted between the push piece and the platen, and a linkage connecting the crank and the push piece. Thus, the push piece is moved up and down in the opposite direction of the displacement direction of the punch, and after the punching is completed, the ejector rods are driven to pass through the platen and push the workpiece on the platen off the platen.

Description

The bottom Lifting Device of punch press

Technical field

The utility model relates to a kind of Lifting Device, particularly relates to a kind of bottom Lifting Device of punch press of energy pushing tow workpiece.

Background technology

Ginseng Fig. 1, Fig. 2, general punch press 1 mainly comprise a board 11, dish 12, one line shaft 13, a driving cam 14, a connecting rod 15, two Passive parts 16, a connection piece 17 and a push rod 18.

This dish 12 is arranged on the position of these board 11 contiguous bottoms 111, and can hold and wear a workpiece.

But this line shaft 13 is to run through this board 11 1 upper ends 112 along axis direction turn ground, and can drive a punching pin (figure does not show) this this workpiece of dish 12 punching presses relatively.

This driving cam 14 is to be installed in this line shaft 13 1 ends, and is positioned at this board 11 1 sides 113.

This connecting rod 15 is laterally to be hubbed on these board 11 1 sides 113 and contiguous this upper end 112, and has an end 151 that touches with this driving cam 14, and the reverse other end 152.

These Passive parts 16 have along parallel this axis direction coaxial be hubbed on these board 11 bottoms 111 two by moving cam 161,162.

This connector 17 articulates these connecting rod 15 other ends 152 and this is by moving cam 161.

This push rod 18 mounts at this by 12 on moving cam 162 and this dish.

Whereby, when this line shaft 13 drives this punching pin (figure does not show) when finishing the punching press program, can drive these connecting rod 15 1 ends 151 of driving cam 14 downward ejections of synchronous turn, make these connecting rod 15 other ends 152 upwards draw this connector 17, and drive this by moving cam 161, make coaxial this push rod 18 that upwards promoted by moving cam 162 pass this dish 12, and this workpiece of ejection break away from this dish 12.

Yet, though above-mentioned structure can be finished the operation of liftout, when it uses in reality, still there is following disappearance and needs to be resolved hurrily:

1. because the transmission of these assemblies, be by this driving cam 14 this connecting rod 15 of ejection and transferring power in the turn process, therefore, in the process of constantly turn ejection, the speed of these driving cam 14 abrasion can be quite fast, so service life is short and cost is higher.

Moreover, the all mutual interlock of these inter-modules, therefore, but adjust the height of these push rod 18 jackings each time, just must actually finish one time the punching press program, but whether the height that just can predict these push rod 18 jackings meets the requirements, so, under can't the situation of die trial, the action of adjustment seem quite loaded down with trivial details and inconvenience, and do not have practicality.

The utility model content

But it is a kind of not with the bottom Lifting Device of the punch press of cam drive and die trial that the purpose of this utility model is to provide.

This punch press has a board, be arranged on this board one bottom and can hold a dish wearing a workpiece, this dish impacts a punching pin of this workpiece downwards relatively, but and run through this board one upper end along axis direction turn ground and can drive a line shaft of the upper and lower displacement of this punching pin, of the present utility model being characterised in that: the bottom Lifting Device of this punch press comprises a drive, a crank, a yoke frame, a plurality of push rod and a moving part.This drive is installed in this line shaft one end.This crank has the pivot knot end with this drive eccentric position pivot knot, and is in reverse to a movable end of this pivot knot end.This yoke frame this dish relatively is arranged on this board bottom movablely, and has the two shaft lever that extends along parallel this axis direction.These push rods mount between this yoke frame and this dish.This moving part connects this crank movable end and this yoke frame axostylus axostyle, makes this ejector be in reverse to the upper and lower displacement of direction of displacement of this punching pin, and can be after punching press is finished, and these push rods of priming pass this dish, and this workpiece of ejection breaks away from this dish.

Effect of the present utility model is can increase the service life, reduce cost and the simplification when promoting adjustment.

Description of drawings

Be elaborated below by most preferred embodiment and accompanying drawing bottom Lifting Device to punch press of the present utility model, in the accompanying drawing:

Fig. 1 is a side view, and known punch press is described.

Fig. 2 is a cutaway view, and the situation of aforementioned punch press liftout is described.

Fig. 3 is a stereogram, and the preferred embodiment of the bottom Lifting Device of the utility model one punch press is described.

Fig. 4 is a side view, and the continuous action relation of this preferred embodiment is described.

Fig. 5 is a cutaway view, and a moving part interlock one yoke frame in this preferred embodiment is described.

Fig. 6 is a stereogram, illustrates that this yoke frame has an axle bed and a crane in this preferred embodiment.

Fig. 7 is a cutaway view, and the position relation of this moving part and this yoke frame and a die trial cylinder pressure in this preferred embodiment is described.

Fig. 8 is a cutaway view, illustrates that this crane of the direct ejection of this die trial cylinder pressure breaks away from this axle bed in this preferred embodiment.

The specific embodiment

Ginseng Fig. 3, Fig. 4, the preferred embodiment of the bottom Lifting Device of the utility model punch press is mounted on the punch press 2, this punch press 2 has a board 21, is arranged on these board 21 1 bottoms 211 and can holds a dish 22 wearing a workpiece, but reaches a line shaft 23 that runs through these board 21 1 upper ends 212 along axis X direction turn ground.This line shaft 23 can drive a punching pin (figure does not show) this dish 22 these upper and lower displacements and this workpiece of punching press relatively.Ginseng Fig. 4, Fig. 5, this bottom Lifting Device comprises: a drive 3, a crank 4, be coupling part 5, a yoke frame 6, a plurality of push rod 7, a moving part 8 and a die trial cylinder pressure 9.

This drive 3 is to be installed in the end 231 that this line shaft 23 passes these board 21 1 sides 213.

This crank 4 has the pivot knot end 41 with this drive 3 eccentric position pivots knot, and is in reverse to a movable end 42 of this pivot knot end 41.

This part 5 that is coupling has a toggle link 51, a bracket 52 and an elbow sheet 53.This toggle link 51 has an end 511 that is hubbed on these board 21 sides 213 and contiguous this upper end 212, and run vertically down and with the other end 512 of this crank 4 movable ends 42 pivots knot.This bracket 52 have with one first end 521 of this board 21 sides 213 pivots knots and contiguous this bottom 211, with one second end 522 and one the 3rd end 523 of this first end, 521 triangularities configuration.This elbow sheet 53 has a reverse end 531 and the other end 532, and these elbow sheet 53 1 ends 531 are and this bracket 52 second ends 522 pivots knot.

Ginseng Fig. 5, Fig. 6, this yoke frame 6 has an axle bed 61 and a crane 62.This axle bed 61 is contained in these board 2 bottoms 211, and have two pieces 611 and run through an axostylus axostyle 612 of this board 21 and these pieces 611 along parallel this axis X (as Fig. 3) direction, and be respectively formed at a cantilever 613 of these piece 611 eccentric positions, and this axostylus axostyle 612 passes this board 21 sides 213, makes this brace 613 and this elbow sheet 53 other ends 532 pivots knot.These crane 62 detachable liftoff mounting on this cantilever 613.

These push rods 7 mount on 22 on this crane 62 and this dish.

This moving part 8 vertically extends, and connects this crank 4 movable ends 42 and this bracket 52 the 3rd end 523 respectively.

These die trial cylinder pressure 9 relative these yoke frames 6 are arranged on this board 2 one bottom surfaces 214, but and this crane of tool ejection 62 breaks away from these cantilevers 613 and to a piston rod 91 of top offset.

Ginseng Fig. 4, when this line shaft 23 drives this punching pin (figure does not show) when finishing the punching press program, can drive the drive 3 of synchronous turn, this drive 3 is coupling involving of part 5 by this crank 4 and this, these moving part 8 upper and lower displacements of interlock, and on the thronely move past this axle bed 61 of turn in the journey, ginseng Fig. 6, make this axle bed 61 just, in the process of reverse turn, with this this crane 62 of cantilever 613 upper and lower promotions, ginseng Fig. 7, Fig. 8, and then promote these push rods 7 and pass this dish 22, and this workpiece of ejection breaks away from this dish 22, finishes the action of liftout.

Ginseng Fig. 4, Fig. 8, what deserves to be mentioned is, when this drive 3 stops to move, can directly activate this die trial cylinder pressure 9, the piston rod 91 that makes this die trial cylinder pressure 9 upwards this crane 62 of lifting directly breaks away from these cantilevers 613, and then promotes these push rods 7 and pass this dish 22, whereby, can test these push rods 7 and pass the amount of passing of this dish 22, reach the purpose of die trial.

According to the above as can be known, the bottom Lifting Device of punch press of the present utility model has following advantage and effect:

1. the utility model is by the pivot junction relationship between each unit's work, reaches the purpose of interlock, therefore, does not have the problem of abrasion, and long service life, and cost is also lower.

Moreover, the utility model can be when the punching press program stops, directly with the piston rod 91 of this die trial cylinder pressure 9 upwards this crane 62 of lifting directly break away from this cantilever 613, and then promote these push rods 7 and pass this dish 22, whereby, under the situation of not this drive 3 of interlock, this part 5 that is coupling, finish the action of die trial, not only can make the action of adjustment simpler and easy, and can promote practicality of the present utility model.

Claims

1. the bottom Lifting Device of a punch press, this punch press has a board, be arranged on this board one bottom and can hold a dish wearing a workpiece, this dish impacts a punching pin of this workpiece downwards relatively, but and run through this board one upper end along axis direction turn ground and can drive a line shaft of the upper and lower displacement of this punching pin, it is characterized in that:

One drive, it is installed in this line shaft one end;

One crank, it has the pivot knot end with this drive eccentric position pivot knot, and is in reverse to a movable end of this pivot knot end;

One yoke frame, its relative this dish is arranged on this board bottom movablely, and has the two shaft lever that extends along parallel this axis direction;

A plurality of push rods, it mounts between this yoke frame and this dish; And

One moving part, it connects this crank movable end and this yoke frame axostylus axostyle, makes this ejector be in reverse to the upper and lower displacement of direction of displacement of this punching pin, and can be after punching press is finished, and these push rods of priming pass this dish, and this workpiece of ejection breaks away from this dish.

2. the bottom Lifting Device of punch press as claimed in claim 1, it is characterized in that: this bottom Lifting Device also has the part that is coupling, this part that is coupling has a toggle link, and this toggle link has an end that is hubbed on this board upper end, reaches along the other end of this moving part bearing of trend and the pivot joint of this crank.

3. the bottom Lifting Device of punch press as claimed in claim 2, it is characterized in that: this part that is coupling also has a bracket, and this bracket has one second end and one the 3rd end that articulates with one first end of this board bottom pivot knot, with this moving part and this yoke frame axostylus axostyle.

4. the bottom Lifting Device of punch press as claimed in claim 3, it is characterized in that: this part that is coupling has an elbow sheet, and this elbow sheet is the axostylus axostyle that articulates this bracket the 3rd end and this yoke frame.

5. the bottom Lifting Device of punch press as claimed in claim 1, it is characterized in that: this yoke frame has an axle bed, is formed on a cantilever of this axle bed eccentric position, an and detachable liftoff crane that mounts on this cantilever, these axostylus axostyles are formed on this axle bed two sides, and this footstock mounts on this crane.

6. the bottom Lifting Device of punch press as claimed in claim 5, it is characterized in that: this bottom Lifting Device also has a die trial cylinder pressure, this die trial cylinder pressure relatively this yoke frame is arranged on this board one bottom surface, but and has that this crane of ejection breaks away from this cantilever and to a piston rod of top offset.