GB2349597A - Rotary die apparatus of punch press machine and method of controlling the operation thereof - Google Patents
Rotary die apparatus of punch press machine and method of controlling the operation thereof Download PDFInfo
- Publication number
- GB2349597A GB2349597A GB0005851A GB0005851A GB2349597A GB 2349597 A GB2349597 A GB 2349597A GB 0005851 A GB0005851 A GB 0005851A GB 0005851 A GB0005851 A GB 0005851A GB 2349597 A GB2349597 A GB 2349597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- small
- dies
- striker
- punch press
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000004080 punching Methods 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 description 7
- 238000010138 die striking Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 2
- 229940086255 perform Drugs 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/12—Punching using rotatable carriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
Disclosed is a rotary die apparatus for use in a punch press machine, the rotary die apparatus comprising an upper die P and lower die each having an auto index function of the punch press machine. Each die comprises a plurality of small dies (2), (3), and (4) that are provided in rows on the periphery of the die, the small dies of the upper die being respectively paired with their corresponding small dies of the lower die. The small die (2), (3), or (4) that is used for working is rotation positioned by the index function; and, in correspondence with the position of the small die (2), (3), or (4) that has been rotation positioned, rotation positioning is performed of a striker (15) of the ram for punching the small die (2), (3), or (4).
Description
2349597 ROTARY DIE APPARATUS OF PUNCH PRESS MACHINE, AND METHOD OF
CONTROLLING THE OPERATION THEREOF
BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a rotary die apparatus that has a function that is useful when the apparatus is applied to a punch press machine of, for example, a turret punch press machine, and a method of controlling the operation thereof. 2. Related Art Conventionally, it is practiced to mount a plurality of small-diameter dies on the periphery of a punch chip of an auto index type die,, whose diameter is relatively large, and to select the small die that is used for working by the index function.
However, in a conventional two-or-more-die mounted tool, as illustrated in Figs. 13 and 14, in one piece of die Ph are mounted a plurality of punches PC, to PC7 that are used as the small-diameter dies. Therefore, there is the drawback that, when working is performed, the region of one piece of die Ph as a whole becomes a dangerous region, and in addition there are also the following drawbacks.
Namely, it is indeed possible to perform rotation positioning of the die Ph with the use of the index function and thereby to perform positioning to the punch position any one of the small-diameter small dies PC, to PC7. which is used for working. However, it was only possible to perform working with each die PC, to PC7 having a die angle of 0 degree for the following reasons. One of the reasons is that the striking part of a striker of the ram is f ixedly directed. The other is that the relative angle within the die Ph of each small die PC, to PC7 remains f ixed.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a rotary die apparatus that solves the above-described points in problem of the con-ientional two-or-more-die mounted tool, i.e., the drawback that such two or more small dies can only work at a I die angle of 0 degree, and that therefore enables working to be performed at a given die angle, and to provide a method of controlling the operation of the apparatus.
The construction of a rotary die apparatus of the present invention, which has been made with an aim to solve the above-described problems, is made up into a type wherein the rotary die apparatus comprises an upper die and lower die each having an auto index function of the punch press machine, each die comprising a plurality of small dies that are provided in rows on the periphery of the die, the small dies of the upper die being respectively paired with their corresponding small dies of the lower die, whereby the small die that is used for working is rotation positioned by the index function; and, in correspondence with the position of the small die that has been rotation positioned, rotation positioning is performed of a striker of the ram for punching the small die. Also, the construction of a method of controlling the die apparatus is made up into a type wherein the rotary die apparatus comprises an upper die and lower die each having an auto index function of the punch press machine, each die comprising a plurality of small dies that are provided in rows on the periphery of the die, the small dies of the upper die being respectively paired with their corresponding small dies of the lower die, whereby the method comprises the step of, when a pair of ones of a plurality of the small dies is rotation positioned by the index function in order to perform punch press working, performing positioning of a striker of the ram in synchronism with the rotation positioning operation to the same phase as that of the rotation position of the pair of small dies to thereby perform punch press working.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view illustrating an example of a main part of an upper die of a rotary die apparatus according to the present invention; Fig. 2 is a perspective view illustrating a.state where a small die that has been selected in the die of Fig. 1; 2 Fig. 3 is a plan view illustrating an example of an auto index function; Fig. 4 is a perspective view illustrating an example of a main part of a striker of the ram of the rotary die apparatus according to the present invention; Fig. 5 is a perspective view illustrating an example of the rotation positioning of the striker illustrated in Fig. 4; Fig. 6 is a plan view illustrating a first example of the positional relationship between the striker and the small die, which have been rotation positioned in order to perf orm working; Fig. 7 is a plan view illustrating a second example of the relationship between the striker and the small die at the rotated position that has been determined by positioning; Fig. 8 is a plan view illustrating an example that has been obtained by straight-line pass working that has been performed through co-operation of the striker with the small die of Fig. 7; Fig. 9 is a plan view time-sequentially illustrating a state where the rotation positioning control of the small die and the striker is continuously performed; Fig. 10 is a plan view illustrating an example that has been obtained by w-shaped wave-line working that has been performed through co-operation of the striker with the small die of Fig. 9; Fig. 11 is a plan view time-sequentially illustrating the positional relationship between a circular nibbling die and the striker at the time of working; Fig. 12 is a plan view illustrating an example that has been obtained by circular "nibbling working that has been performed by the die of Fig. 11; Fig. 13 is a perspective view illustrating an example of a conventional. die having mounted therein a plurality of small dies; and Fig. 14 is a perspective view illustrating an example that is during the use of the die of Fig. 13.
DESCRIPTION OF THE PREFERRED EMBODIMENT
3 An embodiment of the present invention will now be explained with reference to the drawings. Fig. 1 is a perspective view illustrating an example of a main part of an upper die of a rotary die apparatus according to the present invention. Fig. 2 is a perspective view illustrating a state where a small die that has been selected in the die of Fig. 1. Fig. 3 is a plan view illustrating an example of an auto index function. Fig. 4 is a perspective view illustrating an example of a main part of a striker of the ram of the rotary die apparatus according to the present invention. Fig. 5 is a perspective view illustrating an example of the rotation positioning of the striker illustrated in Fig. 4. Fig. 6 is a plan view illustrating a first example of the positional relationship between the striker and the small die, which have been rotation positioned in order to perform working. Fig. 7 is a plan view illustrating a second example of the relationship between the striker and the small die at the rotated position that has been determined by positioning. Fig. 8 is a plan view illustrating an example that has been obtained by straight-line pass working that has been performed through co- operation of the striker with the small die of Fig. 7. Fig. 9 is a plan view time-sequentially illustrating a state where the rotation positioning control of the small die and the striker is continuously performed. Fig. 10 is a plan view illustrating an example that has been obtained by w-shaped wave-line working that has been performed through co- operation of the striker with the small die of Fig. 9. Fig. 11 is a plan view time-sequentially illustrating the positional relationship between a circular nibbling die and the striker at the time of working. Fig. 12 is a plan view illustrating an example that has been obtained by circular nibbling working that has been performed by the die of Fig. 11. Fig. 13 is a perspective view illustrating an example of a conventional die having mounted therein a plurality of small dies. Fig. 14 is a perspective view illustrating an example that is during the use of the die of Fig. 13.
In Figs. 1 and 2, a reference symbol 1 denotes an upper die block that is substantially circular-columnar. Here, small 4 dies 2, 3, and 4 are mounted in three independent holders 2a, 3a, and 4a that have been illustrated, respectively. These small dies are loaded therein by being formed so that when they have had their punch heads punched by the striker, their corresponding punch chips may perform their punch working operation. The small dies form the upper die P of the present invention. By the way, in the conventional die having had loaded therein a plurality of small dies PC1 to PC7 illustrated in Figs. 13 and 14, when working is done, the die Ph as a whole is lowered once. For this reason, the entire within-diameter region of this die Ph was the dangerous region. In the present invention, however, the small dies 2 to 4 are loaded in the upper die block 1 by being mounted in the separate holders 2a to 4a so that the small dies may respectively independently perform their working operations. And therefore the dangerous region that prevails when working is done is limited to the within-diameter region of a corresponding one of the small dies 2 to 4 that is used for working. Therefore, the dangerous region that Prevails when working is done is small in zone.
In the present invention, although not illustrated, as in the case of the above-described upper die P, a lower die also has its small-diameter die, corresponding to the small dies 2 to 4, loaded in the substantially circular-columnar lower die block. The lower die assumedly thereby constitutes a lower die (D, not illustrated) of the present invention. And,theseupper die P and lower die (D) are mounted into a corresponding one of die holders H each having an auto index function illustrated in Fig. 3. And they are mounted on a punch turret and die turret of a turret punch press machine for example. An example of the construction of this index function will now be explained with reference to Fig. 3 next.
In Fig. 3, a ref erence symbol 11 denotes a cylinder-shaped die holder that has been mounted on a holder base 10 in such way as to have only its rotation permitted to be made. In die hole lla of this die holder 11 is inserted the abovedescribed upper die P in such a way as to have only its integral rotation with the holder 11 permitted to be made. On the outer periphery of the die holder 11 is provided a worm wheel 12 that is integral with the holder 11. On the other hand, with the worm wheel 12 is meshed a worm 14 provided on a rotary shaft 13 that has been extended over from the center of rotation of the turret. By the normal and reverse rotations of this rotary shaft 13, the die holder 11 integral with the worm wheel 12 is positioned at a given angle at a required pitch either clockwise or counterclockwise. Although not illustrated, the lower die (D) is of the same construction also regarding the lower die (D).
By the construction of the above-described auto index mechanism, the upper and lower dies P and (D) each equipped with the small dies 2 to 4 can position each of their small dies 2 to 4 to a given angle with these small dies being integral with the die holder 11. However, this function was also had by the conventional upper and lower dies each equipped with a plurality of small dies. However, conventionally, the position of a striking part of the striker for striking the small die was f ixed on the axis of the stroke operation of the ram. Therefore, the small die that is used for working could be only used right beneath the striking part at the f ixed position, i. e., only used at the position having a die angle of 0 degree. Therefore, no best use was made of the index function for indexing the small dies. On this account, according to the present invention, in addition to the above-described index function with respect to the small dies 2 to 4, the index function has been also imparted to the striker in order to strike the small die 2 to 4 indexed to a given angle at this indexed position. An explanation will next be given of this respect.
As illustrated in Figs. 4 and 5, the striker 15 of the ram that is here illustrated as being rectangular-columnar, has formed on the outer periphery thereof a small-die striking part 16 for striking any of the small dies 2 to 4 in such a way that this striking part 16 protrudes from the striker 15. Also, over an upper portion of this striker 15 is provided an input gear 17 in order to cause the striker 15 to be rotated. With this input gear 17 is meshed an output gear 19 that has a rotating 6 force transmitted from a motor 18. With this construction, the small-die striking part 16 of the striker 15 can be positioned to the position, having a given angle, on the outer periphery of the striker 15 through the rotation of the motor 18. Therefore, even when the punch head of any of the small dies 2 to 4 is located at the position of a given angle with respect to the periphery of the die holder 11, the striking part 16 can be freely positioned on any of the small dies 2 to 4 that is wanted to be stricken.
The upper and lower dies P and (Dd) of an auto index type and of the above-described construction, each of which is equipped with the small dies 2 to 4, are made to co-operate with the striker of the ram having imparted thereto the index function for indexing the small-die striking part 16, as in, for example, Figs. 6, 7, and 9. By doing so, it becomes possible to perform punch press working such as that illustrated in Fig. 8 or 10. Namely, in the case of Fig. 6, the small die 4 is indexed (angular positioned) at the position that is right upside of this Fig. 6. Simultaneously, the striking part 16 of the striker 15 is indexed at the position that has the same phase as that of the small die 4. In this state, the punch head of the small die 4 is punched by the striking part 16 of the striker 15. While this punching is being done, at the point in time when the punch chip has been drawn off from the work W in the return stroke of the striker 15, this work W is moved. By doing so, it is possible to perform horizontal straight-line pass working (not illustrated). The oblique-straight-line pass working WL, illustrated in Fig. 8 is the one that has been formed as follows. Namely, the small die 4,of each of the upper and lower dies is indexed to the position illustrated in Fig. 7. Simultaneously, the striking part 16 of the striker 15 is indexed to the same position, whereby the punching operation is performed. Then, while this punching operation is being done, the work W is moved at an angle of 3 0 degrees in the f orm of a straight line to thereby perform press working. The pass working is thereby obtained.
Figs. 9 and 10 illustrate an example of a work product WL, formed in the work W as a W-shaped wave-line pass working 7 WL2 as follows. Namely, the work product WL, is formed by, while causing angular rotation of the small die 4 and the striker 15 of the ram alternately through an inclination angle of, for example, 45 degrees to the right and to the left, causing horizontal straight-line movement of the work W. Figs. 9(a) to (d) illustrate the relationship between the direction of angle of the small die 4 and that of the striking part 16 of the striker 15 from the aspect of time passage.
Figs. 11 and 12 illustrate a work product WL, formed in the work W as a circular punch working WL3 by a small die 2 when the same is a die for use on circular nibbling. The small die 2 and the striking part 16 of the striker 15, while they are being synchronized with each other, are here rotated counterclockwise at pitches of 30 degrees one after another as illustrated in Fig. 11. By this rotation, it is possible to perform the punch working wherein a circular work-product line WL3'S formed in the work W of Fig. 12.
The present invention' is as has been described above. Namely, the upper and lower dies each having a plurality of the small dies mounted therein are respectively inserted into the die holes of the upper and lower die mounting portions each having an index function. This enables positioning the direction of their respective small dies to and at a given angle. Simultaneously, in order that the small die can be punched at its positioned spot, an index function is imparted to the striker of the ram. By doing so, it has been so arranged as to enable the small-die striking part formed on this striker to be indexed to the angle of the indexed small die. This equivalently means that every one of a plurality of the small dies mounted on each of the upper and lower dies each having one piece of index function can be used for working at a given positioned angle. Namely, it equivalently means that every one of the small dies has an auto index function.
Conventionally, in general, the upper and lower dies each having an auto index function were deemed as being limited to being loaded three in number per turret. According to the present invention, however, it is possible to form a punch press 8 machine that has had loaded therein the dies each having an auto index function, whose number is at least twice as la. rge as the number of the convention dies. This enables the performance of various kinds of and a wide variety of pieces of punch press working by the use of one punch press machine.
9
Claims (4)
1 A rotary die apparatus for use in a punch press machine, the rotary die apparatus comprising an upper die and lower die each having an auto index function of the punch press machine, each die comprising a plurality of small dies that are provided in rows on the periphery of the die, the small dies of the upper die being respectively paired with their corresponding small dies of the lower die, whereby the small die that is used for working is rotation positioned by the index function; and, in correspondence with the position of the small die that has been rotation positioned, rotation positioning is performed of a striker of a ram for punching the small die.
2. A rotary die apparatus for use in a punch press machine according to claim 1, wherein the small dies that have been provided in rows in the upper die are each provided individually mounted in a corresponding die holder.
3. A method of controlling a rotary die apparatus for use in a punch press machine, the rotary die apparatus comprising an upper die and lower die each having an auto index function 2Q of the punch press machine, each die comprising a plurality of small dies that are provided in rows on the periphery of the die, the small dies of the upper die being respectively paired with their corresponding small dies of the lower die, the method comprising the step of, when a pair of ones of a plurality of the small dies is rotation positioned by the index function in order to perform punch press working, performing positioning of a striker of the ram in synchronism with the rotation positioning operation to the same phase as that of the rotation position of the pair of small dies to thereby perform punch press working.
4. A method of controlling according to claim 3, wherein when performing rotation positioning between the small die and the striker, a work is positioned on a working table.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07775499A JP3485490B2 (en) | 1999-03-23 | 1999-03-23 | Rotary mold equipment for punch press machine |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0005851D0 GB0005851D0 (en) | 2000-05-03 |
GB2349597A true GB2349597A (en) | 2000-11-08 |
Family
ID=13642730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0005851A Withdrawn GB2349597A (en) | 1999-03-23 | 2000-03-10 | Rotary die apparatus of punch press machine and method of controlling the operation thereof |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP3485490B2 (en) |
DE (1) | DE10012178A1 (en) |
GB (1) | GB2349597A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8201435B2 (en) | 2006-10-18 | 2012-06-19 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Plate workpiece processing tools and machines |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006049044B4 (en) * | 2006-10-18 | 2018-01-11 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Tool for cutting plate-like workpieces |
KR101217482B1 (en) * | 2011-08-25 | 2013-01-09 | 문병일 | Rotary cold former |
DE102015115960A1 (en) * | 2015-09-22 | 2017-03-23 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Multiple tool for machining workpieces, especially sheets |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1563922A (en) * | 1977-04-25 | 1980-04-02 | Mercer Nairne & Co Ltd | Turret punches |
US4250785A (en) * | 1979-06-02 | 1981-02-17 | Yamazaky Iron Works | Turret type punch press having a plurality of strikers |
JPH08300064A (en) * | 1995-05-02 | 1996-11-19 | Amada Co Ltd | Punch press |
-
1999
- 1999-03-23 JP JP07775499A patent/JP3485490B2/en not_active Expired - Fee Related
-
2000
- 2000-03-10 GB GB0005851A patent/GB2349597A/en not_active Withdrawn
- 2000-03-13 DE DE2000112178 patent/DE10012178A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1563922A (en) * | 1977-04-25 | 1980-04-02 | Mercer Nairne & Co Ltd | Turret punches |
US4250785A (en) * | 1979-06-02 | 1981-02-17 | Yamazaky Iron Works | Turret type punch press having a plurality of strikers |
JPH08300064A (en) * | 1995-05-02 | 1996-11-19 | Amada Co Ltd | Punch press |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8201435B2 (en) | 2006-10-18 | 2012-06-19 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Plate workpiece processing tools and machines |
Also Published As
Publication number | Publication date |
---|---|
JP3485490B2 (en) | 2004-01-13 |
DE10012178A1 (en) | 2000-09-28 |
GB0005851D0 (en) | 2000-05-03 |
JP2000271672A (en) | 2000-10-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |