DE2264099C3 - Device for trimming sheet metal - Google Patents

Description

The invention relates to a device for trimming sheet metal, with a conveyor device, in particular a roller conveyor, and arranged to the side thereof, perpendicular to the conveying direction movable cutting devices. In particular, it relates to a device for trimming large panels, e.g. B. as sections for ship hulls: used outer skin or sealing plates with greater efficiency and greater accuracy.

It is already known, with a flame cutting machine (parallel cutting machine) plate shots in the longitudinal direction to be trimmed in parallel and then several parallel trimmed panel sections along the trimmed Welding edges together by means of one-sided welding, thereby creating a large plate of a desired size, for example for use on a ship's hull. The ones from the relative short front edges of the panel sections composite front edges of the produced in this way large plates are not straight or do not run parallel (see Fig. 8 of the drawing), and therefore it is common practice to trim the uneven areas of both front edges of the large plate by hand. In Fig. 8, the cutting lines are indicated by dashed lines. The disadvantage here, however, is that on Reason for the fact that the trimming is extremely inadequate and with inadequate parallel guidance the cutting lines are done by hand, aligning the large plate on the slipway extremely difficult, if not impossible.

It is also a device for trimming rolled thick sheets and dividing them the edge strip became known (German patent specification 705 996), in which the side perpendicular to Conveying direction of the sheet metal displaceable cutting torches are arranged. The trimming takes place here when conveying the sheet metal. For trimming panels welded together from several panels Oversized plates, as they are used more and more nowadays in shipbuilding, is this device unsuitable because the very heavy weight makes it extremely difficult to obtain a to align such oversized plate exactly in order to have them with the least possible waste or great accuracy to be able to trim.

The invention is therefore based on the object of providing a device of the type mentioned at the beginning create with the large and oversized panels composed of several panel sections with can be trimmed with great accuracy or with little waste.

3 4

This object is to be trimmed according to the invention in order to solve the parallel running edges 3 that a rotatable longitudinal rail is provided on the sides of the conveyor device and 4 along the lines X and Y as cutting lines, which can be produced in FIG. For this purpose, the great direction of width and in a substantially plate 1 via conveyors 5 and 6, e.g. B. RoI-perpendicular arrangement to transverse seams 5 len, from the direction in which a large plate can be moved in dashed lines, the cutting set arrow of FIG. 1 moved forward and introduced a device according to the invention in each direction with a motor for the method, are equipped in along its longitudinal rail, one with which large panels can be trimmed. In this detector provided with a differential converter for the case, the center line of the large plate 1 inserted in this way into the determination of the degree of rotation of the longitudinal rails in the device does not necessarily agree, and a deviation detector with several differentials coincides with the center line of the conveyor device at a stop line for stopping one. Consequently, the arrangement of the large plate of the large plate being conveyed and the detection of the load provided by a deviation detector, which will be explained later, are reproduced in such a way that longitudinal rails are rotated in accordance with the detected deviation.

In the description below, the means the deviation of the large plate in stopped The deviation detector that detects the position, the expression "large plate" is a large steel plate, and it is centered the difference between the center line of the yet, the present invention is not intended to be a Conveyor and the center line of the steel plate to be limited. Any material that held large plate so that at least one of the ao trimmed to produce parallel edges ^ n both sides of the large plate must be provided, the cutting process by the Rails are subjected in accordance with the established device according to the invention. Deviation in relation to the width of the large The terms "lengthways" and "across" are also Plate is moved. At the same time, both longitudinal rails are used, the longitudinal or transverse rails to adjust their positions so rotated, 25 device in F i g. 1 to be designated.

that the rails are substantially perpendicular to the large die in the trimming device

Seams are arranged in the large panel. After that, the large disk 1 introduced into the disk is replaced by a

the known stop device (not shown) provided on both longitudinal rails are attached

Cutting devices are arranged along the rails in a stop line 7 in motion. On one side of the

The end faces or ends of the large conveyor device 6 are essentially perpendicular

cut the plate. cross rails 8, 9 and 10 arranged in relation to the same

Further details of the invention are provided and tables movable from side to side

from the following detailed description of an extension 11, 12 and 13 are each attached to the cross rails.

management example with reference to the drawing. A longitudinal rail 15 with itself on it

tion and from the claims. It shows 35 because the cutter 14 is on the tables

1 shows a schematic plan view of FIGS. 11, 12 and 13 attached. Motors 16 and 17 are

entire structure of a device according to the invention each for the tables 11 and 13 in the manner provided

direction, see that the longitudinal rail 15 on the cross slide

F i g. 2 shows a front view of the device according to NEN 8, 9 and 10 through these motors in the drawing

F i g. 1.40 voltage is moved to the left or right. To move

Fig. 3 a TeilschniU along line TII-III of the gene of the longitudinal rail 15 to the left or right, depending

F i g. 1 by the pivot bearing in the middle of the width of the by the conveyor in the

fixed rail, device inserted large plate 1 it is necessary

4 shows a partial section along the line IV-IV of the agile that the motors 16 and 17 are

F i g. 1 and sets the swivel bearing to be activated on every 45 actuating switches,

The end of the fixed rail is controlled by a switchboard (not shown)

FIG. 5 is an enlarged view of section A , completely parallel to longitudinal rail 15

the F i g. 2 and shows the details of the holding cone to move the large plate 1. Besides, it is yours

Structure of the cutting device, table 12 with a pin (explained later) for

6 shows an enlarged partial section along the 50 turning of the longitudinal rail 15 in the plane

Line VI-VI in FIG. 1 and illustrates the so that when either motor 16 or 17 to move

Swivel bearing at each end of the transversely displacing the table 11 or 13 in the transverse direction actuated!

bar rail, the longitudinal rail 15 in the clockwise odei

F i g. 7 another enlarged partial section rotates counterclockwise in the plane, with dei

long the line VII-VII of Fig. 1 and represents the 55 bisection point 18 represents the bearing point. You

Pivoting at each end of the transversely displaceable arrangement of the longitudinal rail 15 and the other

Baren rail and later to be explained longitudinal rail 35 are at dei

F i g. Fig. 8 is a perspective view of a large construction of the trimming device on di <

Plate, which with the help of the Vor Mittellii according to the invention. the latter has been voted, and there

direction can be trimmed. 60 ago it is necessary to arrange the longitudinal

A large plate 1, which can be adjusted by a cutting bar 15 and 35 so that it has a:

The process with the aid of the device-sized plate according to the invention corresponds to a certain one

The device to be processed consists of "several plates deviating from the center line of the device

Shots 2 previously entered in separate procedures and in the latter. In other words

Fixtures were cut and welded. 65 the rotary movement of the longitudinal rails is per nacl

With such a large disk as, for example, according to the degree of deviation of the abandoned large disk J

Fig. 8, the side edges 3 and 4 may be incorrect with respect to the center line of the conveyor

fail regularly, which is why it is necessary to make this, whereby the longitudinal rails in de

Can be adjusted in a way that they are essentially countersunk, each at its peripheral

right to the (shown in Fig. 8 at 19, 20 and 21) and end portions are attached to the rotation

Seams in the large panel 1 run. In this the pin 41 in the frame 40 to facilitate. the

Case is the transition from the lateral to the central section of the other longitudinal rail 15 is in the

Rotational movement of the longitudinal rails 15 constructed from (not essential according to FIG

showed) control panel made. no more detailed explanation is given. F i g. 4th

The longitudinal rail 35 is on the other hand a partial view of the hinged end portion of the

(on the left in the drawing) of the conveyor on the longitudinal rail 35 (i.e. the area where the

arranged, so that, as in the case of the longitudinal rail 15, the longitudinal rail 35 is connected to the table 31 or 33

a cutting device 34 is on the longitudinal rail 35 io), in which a one-piece with the transverse rails 38

can move along. The latter rail is on Ti- and 39 trained pin 47 in a fixed on the bottom

between 31 and 33 attached, which is mounted on transverse the anchored frame 46 rotatably.

rails 38 and 39 to move left and right when turning the longitudinal rail 35 clockwise

gen, so that when pressed, a, s Mo- or counter-clockwise direction moves around the bisection point

tors 37 for moving the table 33 or movement 15 32 as a bearing point, the cross rails 38 rotate

of the table 31 by a motor 36 the longitudinal and 39 also with the pin 47 as a bearing point, depending

Rail 35 exactly like the longitudinal rail 15 in the clockwise degree of rotation of the longitudinal rail 35. Similar

able to rotate clockwise or counterclockwise, as in the case of the construction according to FIG. 3 are the

at a bisection point 32 forms the camp. Jerseys 48 and 49 on the sides and the end, respectively

but it must be noted that the longitudinal rail 20 of the pin 47 is attached to the turning of the last

35 is unable to relieve himself overall in the direction of teren. On the surface of the einükder Width of the large plate 1 to the left or right, kig rail 38 formed with the pin 47 to move. or 39 a V-shaped groove 50 is made which extends

After conveying and arranging the large extends in the longitudinal direction of the drawing, and

Plate 1 between the longitudinal rails 15 and 35 becomes a V-shaped projection on the lower surface of the 35

their further movement in the direction of the table 31 or 33 carrying the longitudinal rail 35 with dashed lines

The arrow drawn through the (not shown) fits into the groove 50. So, responsive to moves on

Holding element on the holding or stop line 7 to actuate the motors 36 or 37 of the table 31

held, whereby the large plate 1 stands still. At or 33, with the V-shaped groove 50 as a guide

As a precaution, a detector 22 is used at this point, in the longitudinal direction of the drawing (to the left

Determining the positional deviation of the plate arranged or on the right according to FIG. 1). Reference numbers 52 and

net, at the ends of which two differential converters 23 53 denote bearings.

and 24 are attached, whereby when touching the In Fig. 5 is the support structure for the cutting upper End of the large plate 1 with the Diffcrer? - device shown in more detail. The fixture converters 23 and 24 determine the degree of deviation for the cutting devices 14 and 34 is placed and converted into electrical voltage. constructed the same, which is why only the holding structure diescr Detector 22 for determining the deviation for the cutter 14 with reference to FIG the plate can also serve as a holding element, so that F i g. 5 will be explained. This holding device contains the abovementioned stop or holding element is a vertically movable rod 55 on which bolts fall away can. 40 ner 54 are attached. The cutter 14

Detectors 25 and 26 are near the center of which is carried by an arm 56. The reference number 57

Longitudinal rails 15 and 35 provided on the latter, denotes a motor for moving the cutting

to determine the degree of rail rotation. The device 14, which is attached to a frame 58 of the

Detectors 25 and 26 for rail rotation are each- arm 56 is fixedly attached. The motor 57 turns

Weil give away with differential converters 27 and 28. 45 located in engagement with a rack 59

each of the degree of rotation of the longitudinal rails 15 gear 60. The rack 59 extends longitudinally

and convert 35 into an electrical potential. So at the top of the longitudinal rail 15 so that the

Either the motors 16 and 36 or the cutting device 14 are moved along the longitudinal rail

Motors 17 and 37 can move in accordance with the diff-15. The frame 58 is each with

fercnzen of the differential converters 23 and 50 rollers 60, 61 and 62, 63 provided, respectively

24 or 27 and 28 generated potentials actuated. Edges of the longitudinal rail 15 from above and below

As a result, the longitudinal rails 15 and 35 are kept in place, so that the cutting device 14 is smooth and

Moved clockwise or counterclockwise until moved along the longitudinal rail 15 without rattling

the deviations of the lines X and Y can be cut.

that of the large plate from the lines of motion. 55 In Fig. 6 and 7 is the substructure of the longitudinal rail

to which the cutting devices 14 and 34 are shown, in particular the parts of the longitudinal rail

are eiert, are reduced to zero and the lines 15, which are connected to the cross rails 8 and 10

run parallel to each other. The motors 16 and the are. The construction of these areas is identical.

36 or 17 and 37 stop the rotation if the description refers to the structure between Potential differences have reached zero. 6n the transverse rail 8 and the longitudinal rail 15

The invention will then be limited with reference to FIG.

F i g. 3 and 4 explained in more detail. In Fig. 3, a reference numeral 65 denotes a in the figures

Section through the middle section of the longitudinal rail foundation firmly anchored to the ground on which

35 shown exactly. One at the lower end of which the cross rail 8 is firmly attached. On the cross

Langsschicne 35 attached and from her to 65 rail 8, a rack 66 is securely attached, in

below, extending pin 41 is fixed in a. Which engages a gear 67 of the motor 16, which

Ground anchored frame 40 fitted. The zap; is fixed in the table 11. so that the table 11 after

fen 41 is with several bearings 42 43. 44 and 45 left or right according to FIG. 6 is moved, address

accordingly to the movement of the motor 16. Rollers 68, 69, 70, 71, 72 and 73 are provided so that the Table 11 moves smoothly. Between these rollers, the edges of the cross rail 8 are also from above and held down and from both sides. A fixed at the lower end of the longitudinal rail 15 is attached to the table 11 Support 74 held, in which a groove 75 with a right-angled cross-section according to FIG. 6 trained is. A roller 76 attached to the surface of the table 11 is disposed in the groove 75, whereby the table II in the direction of the arrow according to FIG. 7 is moved when the longitudinal shear. '* 15 turns. Bearings denoted by the reference numeral 77 serve to reduce the friction between the supports 74 and the table 11 during the rotary movement of the longitudinal rail 15.

After the construction has been described, the cutting process is then carried out by means of the Device explained.

When the large plate 1, which is arranged on the conveyor between the longitudinal rails 15 and 35 (e.g. a disk roller conveyor) is moved into the cutting device is inserted a further movement of the large plate 1 by a precautionary arranged on the stop line 7 Stop (not shown) interrupted. Simultaneously with the stop of the plate, the deviation becomes the position of large plate 1 (the deviation of the center line of the stopped large plate from the center line of the conveyor) by means of the differential converters 23 and 24 of the large plate 1 contacting deviation detector 22 and the differential converters 27 and 28 of the rail rotation detecting detectors 25 and 26 determined. As a result, the longitudinal rails 15 and 35 in the Wcie adjusted so that they are arranged perpendicular to the seams 19, 20 and 21 in the large panel 1.

Then the cutting devices 14 and 34 move along the longitudinal rails 15 and 35, respectively, so that the torches of these cutters with

ίο mechanical accuracy and high efficiency remove the desired amount of material from the side edges of the large plate 1 so that parallel running edges arise. In this case, however, it is not necessary that the cutting devices 14 and 34 are operated synchronously.

From the above it can be seen that the device according to the invention for trimming large panels is designed so that the deviation from the center line of the conveyor means one in the device imported large plate is noted. The rails supporting the cutters are rotated according to the detected deviation in order to adjust the rails so that they correspond to the detected Deviation correspond so that the desired amount of material from both ends of the large plate can be removed by the cutting devices to produce parallel edges. It there is the advantage that large plates of improved quality by greatly improved parallel running Edges are generated. Furthermore, the efficiency is increased by the automatic processing.

For this purpose 2 sheets of drawings

409 629/208

Claims (6)

Patent claims: 1. Device for trimming sheet metal, with a conveyor, in particular one Roller conveyor, and arranged to the side thereof, movable perpendicular to the conveying direction Cutting devices, characterized in that that on each side of the conveyor (5, 6) a rotatable longitudinal rail (! 5, 35) is provided which is widthwise and in a substantially vertical arrangement is movable to transverse seams (19, 20, 21) in a large plate (1), the cutting devices (14, 34) each with one motor (57) are equipped for moving along their longitudinal rails (15 or 35), one with a differential converter (27, 28) provided detector (25, 26) for determining the degree of rotation of the longitudinal rails and a deviation detector (22) with several differential converters (23, 24) on a stop line (7) for stopping the conveyed large plate and detecting the positional deviation of the stopped plate provided are. 2. Apparatus according to claim 1, characterized in that at least one of the longitudinal rails (15) is attached to several tables (11, 12, 13), which along several, essentially transverse rails arranged perpendicular to the lateral cutting lines of the plate (1) (8,9,10) are movable, and that one at the bottom the central section of this one longitudinal rail (15) attached pin (41) in one the movable table (12) is rotatably received. 3. Apparatus according to claim 1, characterized in that on the underside of the central portion A pin (41) is attached to at least one of the longitudinal rails (35) and rotatably received in a stationary frame (40) is, the ends of this one rail (35) can be moved on each one on a cross rail (38, 39) attached table (31, 33) are mounted and the cross rails (38, 39) with one in one fixed frame (46) rotatably received pin (47) form a unit. 4. Apparatus according to claim 3, characterized in that the cross rail (38, 39) with the pin 5 ″ (47) protruding from its underside and formed on its upper side with a V-shape Groove (50) is provided and that the table (31, 33) attached to the cross rail is attached its underside is provided with a V-shaped projection (51) and through the interposition is movable by bearings (52, 53) on the cross rail, the V-shaped groove serving as a guide. 5. Apparatus according to claim 1, characterized in that the cutting device (14, 34) by means of an arm (56) on a frame (58) is attached, on which a plurality of rollers (61, 62, 63, 64) are arranged and between the ends of the longitudinal rail (15, 35) hold from above and below that a gear (60) with one on the top of the longitudinal rail (15, 35) and arranged in the longitudinal direction along the the latter extending rack (59) is in engagement and that the motor (57) for driving, of the gear (60) is provided. 6. The device according to claim 1, characterized by converting the deviation detector (22) for detecting and determining the positional deviation of the large plate (1) and from the detectors (25, 26) for detecting the rotation into electrical voltages and rotating the longitudinal rails (15, 35) to reduce the difference between the electrical positions to zero.