GB2190027A - Making recesses in the tread side of a grating - Google Patents

Making recesses in the tread side of a grating Download PDF

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Publication number
GB2190027A
GB2190027A GB08710232A GB8710232A GB2190027A GB 2190027 A GB2190027 A GB 2190027A GB 08710232 A GB08710232 A GB 08710232A GB 8710232 A GB8710232 A GB 8710232A GB 2190027 A GB2190027 A GB 2190027A
Authority
GB
United Kingdom
Prior art keywords
punching
grating
spacing
supporting
tools
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08710232A
Other versions
GB8710232D0 (en
GB2190027B (en
Inventor
Peter Furndorfler
Dr Gerhard Ritter
Klaus Ritter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evg Entwicklungs-und Verwertungsgesellschaft Fa
Original Assignee
Evg Entwicklungs-und Verwertungsgesellschaft Fa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to AT119786A priority Critical patent/AT385691B/en
Application filed by Evg Entwicklungs-und Verwertungsgesellschaft Fa filed Critical Evg Entwicklungs-und Verwertungsgesellschaft Fa
Publication of GB8710232D0 publication Critical patent/GB8710232D0/en
Publication of GB2190027A publication Critical patent/GB2190027A/en
Application granted granted Critical
Publication of GB2190027B publication Critical patent/GB2190027B/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/32Perforating, i.e. punching holes in other articles of special shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/06Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/005Making gratings

Description

1 GB 2 190 027 A SPECIFICATION by rest periods; in each rest period, the

punching device is lowered Method and apparatus for making recesses on the towards the grating and each punching tool is tread side of the supporting members of a grating broug ht into an operative position with respectto 70 one of the supporting members, by simultaneous The invention relates to a method of and apparatus actuation of all the punching tools, a plurality of the for making recesses on the tread side of the recesses are then punched out on the tread side of at supporting members of a deck or like grating which least some of the supporting members, and the consists of supporting and spacing members, the punching device is raised from the grating; and, supporting members of which are upright steel 75 the grating and the punching device are displaced strips. relative to one another by a further step.

The recesses have hitherto generally been made in According to the invention apparatus for applying the tread side of the supporting member strips this method, is also provided, in which the punching before manufacture of the gratings. This requires not device comprises a plurality of punching tools only additional operations, for example the interim 80 arranged in rows and actuated in cycles, the storage of the supporting members, provided with punching device having guiding means for guiding it recesses, before they are furtherworked in a grating such that it can be moved up and down in a direction welding machine, but also an extremely accurate perpendicularto the plane of the g rating in orderto alignment of the supporting members, fed to the permit an initial setting movement; the rows of the grating welding machine, before they are welded to 85 tools being located one behind the other in the path the spacing members so that all the spacing of feed of the grating, and each row extending members come to lie either completely in or transversely across the grating feed path; and the completely nextto recesses in the supporting punching device including means for moving the members in orderto ensure continuously uniform punching device cyclically into its operative position, welding and an attractive appearance of thefinished 90 meansfor cyclic actuation of the punching tools, and product. means for effecting the relative movementof the A method is known from theAT-A-314946for grating and the punching device cyclically after manufacturing non-slip gratings, in which method punching.

the recesses are made in the tread side of the Examples of apparatus constructed in accordance supporting members by a melting and displacement 95 with the present invention will now be described process by means of at least one saw blade rotating with reference to the accompanying drawings, in at high speed. which:

The use of rotating saw blades not only causes Figure 1 in side view, shows an apparatus for considerable generation of noise, which in the long applying the method; run is troublesome for and damaging to the 100 Figure2 shows the apparatus according to Figure operating personnel, but also makes it necessary in 1, viewed in the feed direction of the grating; each case to completely separate the manufacture of Figure 3 shows a punching tool in side view and the grating from the operation in which the recesses partly in section; are made in the tread side of the supporting Figure 4shows the punching tool according to members so as not to impair the economical 105 Figure 3 in a position turned through W; utilization of the relatively rapidly working grating Figure 5shows a first embodiment of a punching welding machine bythe considerably slower sawing device, viewed in the feed direction of the grating; out apparatus. In this case, manufacturing the Figure 6shows a plan view of the punching device finished grating thus requires two completely according to Figure 5, with the engagement areas of separate operations. 110 the individual punching tools with the supporting The object of the invention isto improvethe members allocated tothem being drawn in a thick procedure described in AT-A-314946. In particular, line; the desired recesses should be obtained by a faster Figure 7in schematic plan view, shows a second and quieterworking method and one which enables embodimentof a punching device and a grating with the tread side of the supporting membersto be 115 an uneven number of supporting members; and, worked at a speed adapted to the manufacture of the Figure 8shows a plan view of the second gratings and, at least under certain conditions, embodiment of the punching device and a grating directly following and in synchronism with the with an even number of supporting members, in manufacture of the gratings. both Figures 7 and 8,the engagement areas of the According to the present invention there is 120 individual punching tools with the supporting proposed a method of making recesses on the tread members allocated to them again being drawn in a side of supporting members of a grating, the grating thickline.

comprising a plurality of supporting and spacing Figures 1 and 2 show a grating 1 and a punching members and the supporting members comprising device 2. The grating 1 is formed from supporting upright steel strips, wherein a punching device is 125 members 3, which consist of upright steel strips, and used to form the recesses, the punching device cylindrical spacing members 4 and rests on an edge including a plurality of individual punching tools runner 5 which is supported by columns 6.

arranged in parallel rows, characterised in that: The punching device 2 rests on columns 7 and is the grating and the punching device are displaced guided in these columns, for example by means of relative to one another in individual steps separated 130spindles 8 (Figure 5) which can be driven by 2 GB 2 190 027 A 2 hydraulic motors (not shown), or by means of other pieces to fall through, in which case the profile strip drive elementsjor example working cylinders, such 23 is not necessary.

that it can be moved up and down in the direction of During the punching operation, the grating isfed arrow P1 to permit an initail setting movement. step-by-step. Depending on the ddsign of the The punching device 2 has a plurality of punching 70 punching device, this feed can either be effected tools 10 which are arranged in several rows running directly by the grating welding machine or a separate in the direction of the spacing members 4 of the feed device can be provided atthe punching device grating to beworked that is, transverselyto thefeed 2. Afeed device of this lattertype is indicated in direction of this grating. The mutual spacing of the Figure 1. It consists of two slides orcarriages 25 and rows of punching tools 10 is equal to the spacing of 75 26, which can be moved in reciprocating manner in the spacing members of the grating or an integral the direction of arrows P2 by suitable means, for multiple of it. example pistons or hydraulic motors acting via a As shown in Figures 3 and 4, each punching tool 10 rackand pinion, and which engage and feedthe has a T-shaped supporting piece 11 by means of grating atthe spacing members 4 by means of which it is adjustably and fixably guided in the 80 catches 27. Moreover, the length of thefeed step can punching device 2, either, as shown, such that it be approximately equal to the spacing member enables the punching tool 10 to be displaced in a spacing of the grating to be worked or it can also be a direction parallel to the length of the punching tool multiple of it in a correspondingly long configuration or in a position turned through Win orderto oftheslideways.

enable the punching tool 10 to be displaced relative 85 Figures 5 and 6 show a first, preferred to the punching device 2 in a transverse direction. embodiment of a punching device for use in the Two pistons 12 and 13 which are rigidly connected method of the invention. This embodiment has two to one another by a solid piston rod 14 are arranged frames 30 and 31, one inside the other, of which only inside the punching tool in a cylindrical bore and the innerframe 31 is shown in Figure 5. The outer pressure medium lines 15 and 16 connect chambers 90 frame 30 is displaceably guided in the machine 17 and 18, located in front of the endfaces of the housing in the direction of the double arrow P3 by pistons 12 and 13, to a pressure supply (notshown). means of spindles 32 non-displaceably mounted in Depending on the selected action of the pressure the machine housing (not shown) and driven by medium via one of the two lines 16 or 15, the pistons hydraulic motors (also not shown).

can be displace from rightto left in Figure 3 orvice 95 The innerframe 31 can be moved up and down in versa in orderto produce the working movement of cycles relative to the outerframe 30 by means of the the punching tools. spindles 8. A number of punching tools 10 are Several punches 21 are connected to the piston arranged along beams 33, in lines parallel to the rod 14via an insert piece 20 let into the piston rod 14 supporting members 3 of the grating, with the and an abutment 22, inserted in the housing of the 100 punching tools 10 which are arranged on adjacent punching tool 10, interacts with the punches 21 in beams 33 forming parallel rows in the direction of such a waythat piecesJor example in the form of the spacing members 4 of the grating.

arcuate segments, are punched out of the tread side So that gratings can also be worked which have of a supporting member 3 when pressure acts on the supporting and spacing members with different piston 13 via the pressure medium line 16. Blanks of 105 spacings, the beams 33 in the frame 31 arefixable other shapes, for example triangular ortrapezoidal, and displaceable transverselyto their length and the can of course also be punched out. punching tools 10 are displaceable along the beams During the cutting movement, a lazy-Z-shaped 33.

profile strip 23 which is rigidly connected to the As soon as the frame 31 has been lowered by insert piece 20 enters into a corresponding recess 24 110 means of the spindles 8 to the exteritthatthe in the abutment 22. Located between the punching tools are located in the operative position downwardly directed leg of the profile strip 23 and with respect to the supporting members 3, all the the endface of the punches 21 which is parallel to this punching tools 10 are actuated simultaneously and leg is a clearance space into which the tread side each punches all of the desired recesses out of the edge of the supporting member3 partly projects. 115 respective supporting member 3 overthe entire During the cutting movement of the punch 21, the length of the line of punching tools. The area in punched-out piece of the supporting member 3 is which a punching tool acts on a supporting member first of all pushed into the recess 24, but as soon as of the grating is indicated in a thick line.

pressure acts on the piston 12 via the pressure The inner frame 31 is then raised again by means medium line 15, all the movable parts of the 120 of the spindles 8 to the exteritthatthe punching tools punching tool return to their initial positions, with 10 disengage from the supporting members, and the the punched-out pieces of the supporting member frame 30, togetherwith all of the punching tools 10, being guided back again by the profile strip 23 into is then displaced to the right in Figure 6to the extent the recesses left behind aftertheywere punched out, thatthe supporting members adjacenttothe from wherethey eitherfall down bythemselves 125 supporting members just worked cometo lie during thecontinuing process orcan easily be beneath the punching tools and can subsequently be removed. punched.

Instead of the embodimentjust described, As soon asthe desired recesses have been however, it is also possibleto provide appropriate punched out of all the supporting members 3 located openings in the abutment 22 for the pu nched-out 130in the area of the punching device 2, the frame 30 is 3 GB 2 190 027 A 3 guided back into the initial position shown in Figures with the slides or carriages 25 and 26. Once the last and 6, and at the same time the grating is fed spacing member has been welded onto the forward by means of the slides or carriages 25 and 26 supporting members by the grating welding by an amount which is equal to the supporting machine, the slides or carriages 25 and 26 convey the member length covered by the I ines of punching 70 grating stil I further through the punching device tools. These operations are repeated, naturally until the punching tools arranged in Figures 7 and 8 underthe action of a known program control device in the uppermost row have also punched all the (which is therefore not shown or described further), recesses out of the members allocated tothem.

until the desired recesses have been punched out of If the grating is conveyed through the punching all supporting members overthe entire length of the 75 device in stepswhose length is equal to half the grating. spacing memberspacing each punching tool Figures 7 and 8 schematically show a second punches outtwice as many recesses between two apparatus according tothe invention,which is adjacent spacing members asthe punching tool has capable of directly interacting in synchronism with a punches21 grating welding machine. In this embodiment, the 80 So thatthe last described punching device can be outerframe 30 (displaceably mounted transversely adapted to gratings having different supporting and to the feed direction of the grating) can be dispensed spacing member spacings, the beams in the frame with. 31 must be displaceably and fixable guided in this The inner frame, guided such that it can be moved punching device in the supporting member up and down, is therefore directly guided in the 85 direction, and the punching tools must be machine housing, and its beam 33 run parallel to the displaceably and fixably guided in this punching spacing members of the grating and each supports a device along the beams 33 in the spacing member row of punching tools 10. direction.

Several parallel rows of punching tools 10 are

Claims (7)

  1. formed, with the punching tools of adjacent rows in 90 CLAIMS each case
    being offset, relativeto the punching tools of the neighbouring row, in the direction 1. A method of making recesses on the tread side perpendicu la rto the feed direction of the grating, by of supporting members of a grating, the grating the supporting member spacing of the grating, in comprising a plurality of supporting and spacing otherwords by a fraction of the mutual spacing of 95 members and the supporting members comprising the operative planes of the punching tools within a upright steel strips, wherein a punching device is row, so that each punching tool of a row, in the used to form the recesses, the punching device lowered condition of the punching device 2, can in including a plurality of individual punching tools each case engage a supporting member3 of the arranged in parallel rows, characterised in that:
    grating. The area in which a punching tool acts on a 100 the grating and the punching device are displaced supporting member of the grating is again indicated relativeto one another in individual steps separated in thick line. by rest periods; By this a rrangement of the pu nching tools, a in each rest period, the punching device is lowered particular punching tool can be allocated to each towards the grating and each punching tool is supporting member of the g rating when the 105 brought into an operative position with respectto punching device is of a relatively short overall one of the supporting members, by simultaneous length, in which casethe rows of punching tools can actuation of all the punching tools, a plurality of the be arranged eitherat a mutual spacing which is recesses arethen punched out on the tread side of at equal to the spacing memberspacing of the grating leastsome of the supporting members, and the orat an integral multiple of this spacing. 110 punching device is raised from the grating; and, Accordingly,the grating in this embodiment isfed the grating and the punching device are displaced in steps,the length of which is at least equal to half relativeto one another by a furtherstep.
    the spacing memberspacing, but preferably equal to
  2. 2. A method according to claim 1, in which the the spacing member spacing of the grating. grating and the punching device are further If the grating is conveyed step by step through the 115 displaced relative to one another insteps in the grating welding machine, first of all the lowermost direction of the spacing members, the length of the row of punching tools which is shown in Figures 7 steps being equal to the spacing between the and 8 engages the supporting members
  3. 3 allocated supporting members, whereby, during the rest to them and punches a row of recesses out of these periods, in a plurality of operations, in each of which members. If the spacing of the rows of punching 120 a plurality of recesses corresponding to a multiple of tools is equal to the length of thefeed step,the the spacing memberspacing are simultaneously second row, afterthefirstfeed step, engages from punched out of a plurality of the supporting belowthe supporting members, etc., allocated to it, members, all the recesses required overthe multiple until finallythe uppermost row of punching tools of the spacing member spacing are punched out; which is shown in Figures 7 and 8 can engagethe 125 and, whereafter, the punching device is guided back supporting members allocated to it. into its initial position relative to the grating, andthe Until the grating welding machine haswelded the grating, with respectto the punching device, isfed lastspacing member onto the supporting members, by a distancewhich is equal to the multiple of the the grating isfed bythefeed device of the grating spacing memberspacing.
    welding machine in interaction and in synchronism 130 3.A method according to claim 1, in which the 4 GB 2 190 027 A 4 grating is conveyedthrough beneaththe punching device in the supporting member direction in steps, the length of which is at least equal to half the spacing memberspacing; and, during each rest period, at least half of all the recesses required are simultaneously punched out of all the supporting members in an area between two adjacentspacing members in such an arrangement thatthe recesses punched outof adjacent supporting members are offset relativeto one anotherin the supporting memberdirection by a spacing memberspacing or an integral multiple of the spacing memberspacing.
  4. 4. Apparatus for use in the method according to claim 1, wherein the punching device comprises a plurality of punching tools arranged in rows and actuated in cycles, the punching device having guiding means for guiding it such that it can be moved up and down in a direction perpendicularto the plane of the grating in orderto permit an initial setting movement; the rows of the tools being located one behind the other in the path of feed of the grating, and each row extending transversely across the grating feed path; and the punching device including means for moving the punching device cyclically into its operative position, meansfor cyclic actuation of the punching tools, and means for effecting the relative movement of the grating and the punching device cyclically after punching.
  5. 5. Apparatus as claimed in claim 4, wherein:
    the punching tools are also arranged to form parallel lines in thefeed direction of the grating; the punching tools in each case being actuable together; the apparatus further comprising means for providing cyclical step by step and common parallel displacement of all the rows of punching tools, after each punching operation, transversely to the grating feed direction in accordance with the supporting member spacing, each cycle comprising a specified number of steps; and the means for effecting the relative movement of the grating and the punching device cyclically after punching being actuated after each complete cycle of punching operations.
  6. 6. Apparatus according to claim 4, wherein:
    the punching tools of the rows which are adjacent in the grating feed direction are arranged offset 7 relativeto one another bythe supporting member spacing; all the punching tools being actuated together; and the means for effecting the relative movement of the grating and the punching device cyclically after punching being actuated aftereach complete cycle of punching operations.
  7. 7. Apparatus substantially as described with reference to any of the examples shown in the accompanying drawings.
    Printed for Her Majesty's Stationery Office by Croydon Printing Company (UK) Ltd,9187, D8991685.
    Published by The Patent Office, 25 Southampton Buildings, London, WC2A l AY, from which copies maybe obtained.
GB8710232A 1986-05-05 1987-04-30 Method and apparatus for making recesses on the tread side of the supporting members of a grating Expired GB2190027B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT119786A AT385691B (en) 1986-05-05 1986-05-05 Method and device for producing exceptions on the beginning side of the support bar of a grating

Publications (3)

Publication Number Publication Date
GB8710232D0 GB8710232D0 (en) 1987-06-03
GB2190027A true GB2190027A (en) 1987-11-11
GB2190027B GB2190027B (en) 1989-11-29

Family

ID=3508703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8710232A Expired GB2190027B (en) 1986-05-05 1987-04-30 Method and apparatus for making recesses on the tread side of the supporting members of a grating

Country Status (4)

Country Link
AT (1) AT385691B (en)
DE (1) DE3714898A1 (en)
GB (1) GB2190027B (en)
IT (1) IT1215457B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641942A (en) * 2012-05-21 2012-08-22 山东力诺瑞特新能源有限公司 Automatic positioning and punching device for shell of solar water tank

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734548A (en) * 2016-12-08 2017-05-31 无锡市彩云机械设备有限公司 A kind of hole punched device of metallic article processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1817660C3 (en) * 1968-03-07 1974-11-21 Carlo Citterio
AT307210B (en) * 1969-07-15 1973-05-10 Evg Entwicklung Verwert Ges Method and device for the production of welded wire mesh
AT314946B (en) * 1972-05-18 1974-04-25 Lichtgitter Gmbh Process for the production of a non-slip grating
DE2643115C2 (en) * 1976-09-24 1981-11-12 Accumulatorenwerk Hoppecke Carl Zoellner & Sohn, Niederlassung Hoppecke, 5790 Brilon, De
US4345452A (en) * 1979-08-15 1982-08-24 General Battery Corporation Cam shaft operated punch press for expanding lead alloy battery grid material
AT372631B (en) * 1980-09-19 1983-10-25 Evg Entwicklung Verwert Ges Method for producing a grating and grid grade therefore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641942A (en) * 2012-05-21 2012-08-22 山东力诺瑞特新能源有限公司 Automatic positioning and punching device for shell of solar water tank
CN102641942B (en) * 2012-05-21 2014-04-16 山东力诺瑞特新能源有限公司 Automatic positioning and punching device for shell of solar water tank

Also Published As

Publication number Publication date
DE3714898A1 (en) 1987-11-12
IT1215457B (en) 1990-02-14
ATA119786A (en) 1987-10-15
IT8720384D0 (en) 1987-05-05
AT385691B (en) 1988-05-10
GB2190027B (en) 1989-11-29
GB8710232D0 (en) 1987-06-03

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