DE2241538A1 - DEVICE FOR MASS BALANCING IN A PUNCHING MACHINE - Google Patents

Description

Dipl.-Ing. H. Sauenland · Dn.-lng. R. König ■ Dipi.-lng. K. Bergen Patent Attorneys 4ooo Düsseldorf aa Cecilienallee 76 Telephone 43373s

Our file: 27 863 22 * August 1972

Bruderer AG, Arbon (Switzerland), Bildstockstrasse 5.

"Device for mass balancing in a

Punching machine "

The present invention relates to a device for balancing the masses in a cross-shaft double-rod punching machine for follow-up cutting tools, in which the bear is mounted on the cross shaft via two pressure columns, handlebars and double levers arranged crank is driven.

In such a punching machine, with consideration of the high desired machine speeds, to avoid outwardly acting vibrations, a perfect mass balance can be achieved.

This is achieved according to the invention by the device mentioned at the beginning in that for the compensation of the perpendicular moving masses and the vertical component from the eccentrically rotating masses driven by the crank,

3098U / 0741

Crosshead guided in the vertical direction carries a balance weight, and that is used for balancing the horizontal component the eccentrically rotating masses are provided with additional counterweights, which are mounted via double levers and handlebars mounted in the housing connected with connecting rod and crank.

Advantageously, the other counterweights are slidably guided on the links and can be moved up and down with these links, so that in addition to balancing the horizontal components from the eccentrically rotating masses, they also provide partial balancing of the vertically moving masses.

The drawing shows an embodiment of the subject matter of the invention shown. It shows:

1 shows a vertical section in the longitudinal center plane of the punching machine,

FIG. 2 shows a vertical section in the transverse center plane along the line II-II in FIG. 1, and FIG

Fig. 3 is a vertical section along the line III-III of Fig. I.

The table 1 of the punching machine shown forms one along the four sides of the frame containing an oil sump 2. A clamping plate 4 is attached to the table 1 by means of screws 3, on which a not shown lower fixed molding is attached can be. In the four corners of the table 1 four support supports 6 are attached by means of screws 5, in which guide bushes 7 are arranged, in which guide columns 8 are guided, which are attached to the underside of the Baers 9. As can be seen, these guide columns 8 extend into the strip running plane B. and are guided in this plane in the guide bushes 7, to which OeI is fed through lines 10 for the purpose of lubrication. That Leakage oil from the guide bushes 7 can through the supports 6 and the hollow screws 5 in the oil sump 2 of the table

- 2 -
3098U / 07A1

flow away. On the underside of the Baers 9 can not be shown Upper mold part are attached and in the middle part of the Baers a cavity 11 is formed which contains cooling oil. On both A pressure column 13 is attached to each side of the bear between two reinforcing ribs 12 and is on each pressure column 13 a Diehtungsbüchse 14 arranged, .which on the on the support posts 6 resting and fastened by means of screws 15 housing part 16 is arranged laterally movable on all sides. To both of them Sealing sleeves 14 are connected to oil supply lines 17. Further is in the left pressure column 13 a connection channel 18 of of the sealing sleeve 14 surrounding this column to the cavity 11 of the bear 9 and from this cavity a connecting channel runs 19 through the right pressure column 13 into the interior of the housing part 16. The oil can therefore through the Baer 9 from the supply line 17 through the left sealing sleeve 14 and pressure column 13 into the cavity 18 and the right pressure column 13 and pressure sleeve 14 circulate into the interior of the housing part IG. The OeI swamp in the upper housing part 16 is through connecting lines not shown connected to the oil sump 2 present in the machine table 1, so that a common oil circuit through both the ' Baer 9 as well as the machine table 1 takes place. The oil sump 2 is ring-shaped, formed and runs along the circumference of the Table 1. The oil inlet takes place on one side of a partition in the sump 2 and the oil outlet on the other side of the same, see above that a cycle of the OeIs over the entire circumference of the machine table takes place. Each pressure column 13 is articulated by a pin 20 with a fork link 21, which other is articulated by means of pin 22 to a double lever 23 each. The beidcm double lever 23 are each mounted on an eccentric 24, its Bearing pin 25 is mounted in the housing part 16. The other ends of the two double levers 23 are each mounted on a bearing pin 26, the short handlebar 27 with dome pin 28 of a cross head 23

3Q98U / 07U

is articulated, which between two tilts 30 of the housing part 16 is guided vertically movable, and to which a counterweight is attached by means of screws 31 at the top. This balance weight 32 is eccentric for balancing the vertically moved masses and the vertical component from the moving masses determined. Two grips on the cross-head pin 28 Connecting rods 33 are articulated and run on an eccentric 34 of a transverse shaft 35, which is driven and mounted in the housing part 16 is. At one end of the two connecting rods 33, link arms 38 are hinged to two pins 37, and one at the other end Double lever 39 are articulated by means of a pin 40 each. Each double lever 39 is rotatably mounted on a pin 41, which is supported in a shoulder 42 of the housing part 16 is. The other end of the double lever 39 is by means of a pin 43 is articulated to one end of a link 44, the other end of which is connected to a counterweight 46 by means of a pin 45 is articulated, which is guided on the associated link 38 displaceably. The two balance weights 46 are for balancing the horizontal component is determined from the eccentrically rotating masses. Because the counterweights are on the Links 38 are guided, they move with the same up and down, so that they except for the balance of the horizontal component from the eccentrically rotating haters also bring about a partial compensation of the vertically moving masses. That on the Crosshead 29 existing balance weight 32 can therefore be made smaller.

309814/0741

Claims (3)

Claims [1.) Device for mass balancing at a Cross shaft double rod punching machine for sequential cutting tools, in which the bear has two pressure columns, handlebars and double levers is driven by a crank arranged on the transverse shaft, characterized in that for the compensation of the masses moved vertically and the vertical component from the eccentrically rotating masses of the masses moved by the crank (33) driven, in the vertical direction guided cross head (2S) carries a balance weight (32), and that for the balance of the horizontal component from the eccentrically rotating masses there are further balancing weights (46) which are about in the housing (16) mounted double lever (39) and handlebar (38) are connected to the connecting rod and crank (3 3). 2. Apparatus according to claim 1, characterized that the further counterweights (46) on the links (38) guided and up with these links (38) and ab are movable so that, in addition to compensating for the horizontal The right component from the eccentrically rotating masses also partially compensates for the vertically moving masses . - 3. Apparatus according to claim 2, characterized in that on each side of the crank (33) one of the two further balancing weights (46) are present, the double lever (39) assigned to each balancing weight (46) on a shoulder (42) of the upper housing part (16) is mounted. - 5 - 3098 U / 07-4