CN113751593A - Upper and lower combined die that bender non-parallel was bent - Google Patents
Upper and lower combined die that bender non-parallel was bent Download PDFInfo
- Publication number
- CN113751593A CN113751593A CN202111119333.2A CN202111119333A CN113751593A CN 113751593 A CN113751593 A CN 113751593A CN 202111119333 A CN202111119333 A CN 202111119333A CN 113751593 A CN113751593 A CN 113751593A
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- Prior art keywords
- die
- bending
- independent
- parallel
- groove
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- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
Abstract
The invention discloses an upper and lower combined die for non-parallel bending of a bending machine, which comprises an upper die set and a lower die set, wherein the upper die set is formed by combining an upper die base and a plurality of independent upper die pieces; the lower die set is formed by combining a lower die base and a plurality of independent lower diaphragms, dies with different sizes are formed by combining a plurality of independent upper dies and a plurality of independent lower diaphragms, so that the opening and the depth of the die formed by the upper die set and the lower die set can be adjusted, non-parallel lines of bending lines of special-shaped workpieces are bent, the bending stress point is small, the required bending force is reduced, and the special-shaped workpiece bending die is particularly suitable for bending the non-parallel lines of the special-shaped workpieces.
Description
Technical Field
The invention belongs to the technical field of bending machines of forging and pressing machine tools, and particularly relates to an upper and lower combined die for non-parallel bending of a bending machine.
Background
The upper die set and the lower die set of the conventional workpiece bending machine are parallel, the required bending force is larger, the width of the lower die notch is about 8 times of the thickness of the workpiece to be bent due to the fact that the lower die notch is in direct proportion to the thickness of the workpiece to be bent, and the overlap size of the center line of the bent workpiece and the workpiece is about 0.7 times of the thickness of the plate. However, the bending die for pressing the bottom of the special-shaped workpiece is a forming die which is customized and processed according to the requirements of the special-shaped workpiece, each special-shaped workpiece needs to be made into a corresponding forming die, and various adverse factors such as high manufacturing cost, high processing difficulty, difficulty in repairing after abrasion, too much occupied space of the die and the like exist.
As shown in fig. 1 and 2, the non-parallel lines of the bending lines of the special-shaped workpiece, such as the positions near the crack preventing grooves in fig. 1 are smaller than the plate thickness, and the lower die opening overlap edge cannot be bent, and only one side of the arc edge can be bent normally. The mould that different work pieces correspond is also different, and mould manufacturing cost is high, and holistic mould is long again heavy, and changes inconveniently, and difficult restoration after the mould uses wearing and tearing, the cycle length influences work efficiency.
Disclosure of Invention
The invention provides an upper and lower combined die for non-parallel bending of a bending machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that: the upper die set and the lower die set are combined to form the non-parallel bending upper die set of the bending machine, and the upper die set is formed by combining an upper die base and a plurality of independent upper die pieces; the lower die set is formed by combining a lower die base and a plurality of independent lower film pieces.
Preferably, the upper die base is provided with a hanging block, one side of each die sheet is provided with a hook, the other side of each die sheet is provided with a tight ejecting groove, and the tight ejecting groove is a V-shaped groove.
Preferably, the plurality of independent upper dies are all provided with a first through hole, and each die is fixed together by a long rod locking bolt penetrating through the first through hole.
Preferably, the bottommost point of each die is designed to be in a circular arc shape.
Preferably, the lower die base is provided with a groove, the multiple independent lower membrane pieces are provided with a second through hole, and a long rod locking bolt penetrates through the second through hole to fix the lower membrane pieces together and then is fixedly connected with the groove.
The beneficial effect of adopting above technical scheme is:
1. the upper die set is formed by combining an upper die base and a plurality of independent upper die sheets; the lower die set is formed by combining a lower die base and a plurality of independent lower dies, wherein the plurality of independent upper dies are different in size, the plurality of independent lower dies are different in size, dies different in size are formed by combining the plurality of independent upper dies and the plurality of independent lower dies, so that the opening and the depth of the die formed by the upper die set and the lower die set can be adjusted, non-parallel lines of bending lines of special-shaped workpieces are bent, the bending stress point is small, the required bending force is reduced, and the special-shaped workpiece bending die is particularly suitable for bending the non-parallel lines of the special-shaped workpieces.
2. The upper die base is provided with a hanging block, one side of each die sheet is provided with a hook, the other side of each die sheet is provided with a tightening groove, and the tightening groove is a V-shaped groove; the hook on one side of the upper die sheet is hung on the hanging block, then the tight jacking screw is screwed into the upper die base, the end part of the tight jacking screw is jacked into the tight jacking groove, the upper die sheet is jacked up through the inclined plane of the V-shaped groove, and the gap between the upper die sheet and the upper die base due to dead weight is eliminated.
The bottommost point of each upper die sheet is designed into an arc shape, so that the upper die sheets with different sizes are replaced, the splicing part of each upper die sheet can not contact with a workpiece, and the arc tangent point of the adjacent upper die sheet is always positioned at the center of the die.
3. The plurality of independent upper dies are provided with first through holes, and each die sheet is fixed together by a long rod locking bolt penetrating through the first through holes; the lower die base is provided with a groove, the multiple independent lower membrane sheets are provided with a second through hole, and a long rod locking bolt penetrates through the second through hole to fix the lower membrane sheets together and then is fixedly connected with the groove; the upper and lower fall of the bending stress point is changed according to the thickness of the plate by adjusting the combination of a plurality of independent upper die sheets and the combination of a plurality of independent lower die sheets, so that the bending force is changed.
Drawings
FIG. 1 is a schematic view of a profiled workpiece of the present invention prior to bending;
FIG. 2 is a schematic view of the shaped workpiece of the present invention after bending;
FIG. 3 is an exploded view of the upper and lower die sets;
FIG. 4 is a side view of the upper module;
FIG. 5 is a side view of the lower die set;
FIG. 6 is a schematic view of a bending state of a special-shaped workpiece;
FIG. 7 is a first schematic view of the upper module in example 3;
FIG. 8 is a second schematic view of the upper module in example 3;
FIG. 9 is a schematic view of the bottom line of the upper die set with the top die plate being straight;
wherein:
1. an upper module; 2. a lower module;
10. an upper die holder; 10-1, hanging blocks; 11. mounting a die sheet; 11-1, hanging hooks; 11-2, tightening a top groove; 11-3, a first through hole;
20. a lower die holder; 20-1, a groove; 21. a lower diaphragm; 21-1 and a second through hole.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 3 to 9, the invention is an upper and lower combined die for non-parallel bending of a bending machine, which forms dies with different sizes by combining a plurality of independent upper dies and a plurality of independent lower diaphragms, so that the opening and the depth of the die formed by an upper die set and a lower die set can be adjusted, non-parallel bending of a bending line of a special-shaped workpiece is performed, the bending stress point is small, the required bending force is reduced, and the invention is particularly suitable for non-parallel bending of the special-shaped workpiece.
Specifically, as shown in fig. 3 to 9, the die set comprises an upper die set 1 and a lower die set 2, wherein the upper die set 1 is formed by combining an upper die base 10 and a plurality of independent upper dies 11; the lower die set 2 is formed by combining a lower die base 20 and a plurality of independent lower diaphragms 21.
The upper die base 10 is provided with a hanging block 10-1, one side of each die sheet 11 is provided with a hook 11-1, the other side of each die sheet is provided with a top tightening groove 11-2, and the top tightening groove 11-2 is a V-shaped groove.
The plurality of independent upper dies 11 are provided with first through holes 11-3, and each upper die 11 is fixed together by a long rod locking bolt penetrating through the first through holes 11-3.
The bottommost point of each die 11 is designed to be in a circular arc shape.
The lower die holder 20 is provided with a groove 20-1, the plurality of independent lower diaphragms 21 are provided with through holes two 21-1, and each lower diaphragm 21 is fixed together by a long rod locking bolt penetrating through the through holes two 21-1 and then fixedly connected with the groove 20-1.
The following specific working modes are illustrated by specific examples:
example 1:
the upper die set 1 is formed by combining an upper die base 10 and a plurality of independent upper dies 11; the lower die set 2 is formed by combining a lower die holder 20 and a plurality of independent lower diaphragms 21, wherein the plurality of independent upper dies 11 are different in size, the plurality of independent lower diaphragms 21 are different in size, and dies different in size are formed by combining the plurality of independent upper dies 11 and the plurality of independent lower diaphragms 21, so that the opening and the depth of the die formed by the upper die set 1 and the lower die set 2 can be adjusted, non-parallel lines of bending lines of special-shaped workpieces are bent, the bending stress point is small, the required bending force is reduced, and the special-shaped workpiece bending die is particularly suitable for non-parallel line bending of special-shaped workpieces.
Example 2:
on the basis of the embodiment 1, the upper die base 10 is provided with a hanging block 10-1, one side of each die sheet 11 is provided with a hook 11-1, the other side of each die sheet is provided with a top tightening groove 11-2, and the top tightening groove 11-2 is a V-shaped groove; the hook 11-1 at one side of the upper mold sheet 11 is hung on the hanging block 10-1, then the top-tightening screw is screwed into the upper mold base 10, the end part of the top-tightening screw is pushed into the top-tightening groove 11-2, the upper mold sheet 11 is pushed up through the inclined plane of the V-shaped groove, and the gap between the upper mold sheet 11 and the upper mold base 10 due to self weight is eliminated.
The bottommost point of each upper die sheet 11 is designed to be in a circular arc shape, so that the upper die sheets 11 with different sizes are replaced, the spliced part of each upper die sheet 11 cannot contact with a workpiece, and the circular arc tangent point of the adjacent upper die sheet 11 is always positioned at the center of the die.
Example 3:
on the basis of the embodiment 1, through holes I11-3 are formed in the plurality of independent upper dies 11, and a long rod locking bolt penetrates through the through holes I11-3 to fix each upper die 11 together; a groove 20-1 is formed in the lower die holder 20, through holes two 21-1 are formed in the plurality of independent lower diaphragms 21, a long rod locking bolt penetrates through the through holes two 21-1 to fix the lower diaphragms 21 together, and then the lower diaphragms are fixedly connected with the groove 20-1; by adjusting the combination of the plurality of independent upper diaphragms 11 and the combination of the plurality of independent lower diaphragms 21, the vertical fall of the bending stress point is changed according to the thickness of the plate, so that the bending force is changed.
As shown in fig. 7, in the upper module 1 composed of 5 upper dies 11 numbered 1, 2, 3, 4, 5, the difference between the bending stress points at the uppermost end and the lowermost end is larger than the difference between the bending stress points at the uppermost end and the lowermost end in fig. 8, wherein the upper dies 11 numbered 1, 2, 3 in fig. 8 are identical to fig. 7, only by loosening the long rod locking bolt and loosening the corresponding upper die 11 jacking screw, the upper dies 11 numbered a and b can be removed or displaced, and then the upper dies 11 numbered a and b are inserted and locked by the long rod locking bolt, so that the plurality of upper dies 11 are attached together, and then the corresponding upper dies 11 are jacked up by the jacking screw, so that the tops of the upper dies 11 are attached to the upper die base 10, and the adjustment of the upper and lower differences of the bending stress points is completed.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various insubstantial modifications of the invention based on the principles and technical solutions of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (5)
1. The utility model provides an upper and lower composite mold that bender non-parallel was bent which characterized in that: the die comprises an upper die set (1) and a lower die set (2), wherein the upper die set (1) is formed by combining an upper die base (10) and a plurality of independent upper dies (11); the lower die set (2) is formed by combining a lower die base (20) and a plurality of independent lower film pieces (21).
2. The upper and lower combined die for non-parallel bending of the bending machine according to claim 1, is characterized in that: the upper die base (10) is provided with a hanging block (10-1), one side of each die sheet (11) is provided with a hook (11-1), the other side of each die sheet is provided with a top tightening groove (11-2), and each top tightening groove (11-2) is a V-shaped groove.
3. The upper and lower combined die for non-parallel bending of the bending machine according to claim 1, is characterized in that: the plurality of independent upper mold pieces (11) are provided with first through holes (11-3), and each mold piece (11) is fixed together by a long rod locking bolt penetrating through the first through holes (11-3).
4. The upper and lower combined die for non-parallel bending of the bending machine according to claim 1, is characterized in that: the bottommost point of each die sheet (11) is designed to be in a circular arc shape.
5. The upper and lower combined die for non-parallel bending of the bending machine according to claim 1, is characterized in that: the lower die holder (20) is provided with a groove (20-1), the plurality of independent lower diaphragms (21) are provided with through holes II (21-1), and each lower diaphragm (21) is fixed together by a long rod locking bolt penetrating through the through holes II (21-1) and then fixedly connected with the groove (20-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119333.2A CN113751593A (en) | 2021-09-24 | 2021-09-24 | Upper and lower combined die that bender non-parallel was bent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119333.2A CN113751593A (en) | 2021-09-24 | 2021-09-24 | Upper and lower combined die that bender non-parallel was bent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113751593A true CN113751593A (en) | 2021-12-07 |
Family
ID=78797216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111119333.2A Pending CN113751593A (en) | 2021-09-24 | 2021-09-24 | Upper and lower combined die that bender non-parallel was bent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113751593A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030782A (en) * | 1973-05-15 | 1975-03-27 | ||
| JPS54136567A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| FR2484297A1 (en) * | 1980-06-13 | 1981-12-18 | Durlumen Sarl Ets | Metal shaping press to give parabolic form - has plates of varying lengths held by clamps to give profile at edges |
| US20040187552A1 (en) * | 2003-03-31 | 2004-09-30 | Wila B.V. | Combination of a press brake clamping system and at least a press brake tool |
| JP2006122959A (en) * | 2004-10-29 | 2006-05-18 | Yamazaki Mazak Corp | Method for preparing die for press brake and die |
| CN101073872A (en) * | 2006-05-19 | 2007-11-21 | 山崎马扎克公司 | Metal mould for plate bending apparatus and its manufacture |
| ES2296121T3 (en) * | 2005-09-13 | 2008-04-16 | Rolleri S.P.A | RAPID COUPLING AND DECOOPLING DEVICE OF THE UPPER UTILITY OF A FOLDING PRESS. |
| US20130019650A1 (en) * | 2011-07-23 | 2013-01-24 | Wilson Tool International Inc. | Tooling assemblies and systems |
| CN202845573U (en) * | 2012-09-14 | 2013-04-03 | 武汉光谷机电科技有限公司 | Adjustable arc-shaped die |
| EP2641668A1 (en) * | 2012-03-21 | 2013-09-25 | Trumpf Maschinen Austria GmbH & CO. KG. | Sheet metal bending machine |
| US20160136706A1 (en) * | 2013-06-20 | 2016-05-19 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Bending tool |
| JP2016107269A (en) * | 2014-12-02 | 2016-06-20 | 株式会社泉陽商会 | Die for press |
| US20170239701A1 (en) * | 2014-10-08 | 2017-08-24 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Handling system for bending tools |
| EP3311931A1 (en) * | 2016-10-24 | 2018-04-25 | Teda S.R.L | Tool locking device for a machine tool, particularly for a folding press |
| CN113351754A (en) * | 2021-06-11 | 2021-09-07 | 中国水利水电第六工程局有限公司 | Gradual change section steel pipe pressing die and using process thereof |
-
2021
- 2021-09-24 CN CN202111119333.2A patent/CN113751593A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030782A (en) * | 1973-05-15 | 1975-03-27 | ||
| JPS54136567A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| FR2484297A1 (en) * | 1980-06-13 | 1981-12-18 | Durlumen Sarl Ets | Metal shaping press to give parabolic form - has plates of varying lengths held by clamps to give profile at edges |
| US20040187552A1 (en) * | 2003-03-31 | 2004-09-30 | Wila B.V. | Combination of a press brake clamping system and at least a press brake tool |
| JP2006122959A (en) * | 2004-10-29 | 2006-05-18 | Yamazaki Mazak Corp | Method for preparing die for press brake and die |
| ES2296121T3 (en) * | 2005-09-13 | 2008-04-16 | Rolleri S.P.A | RAPID COUPLING AND DECOOPLING DEVICE OF THE UPPER UTILITY OF A FOLDING PRESS. |
| CN101073872A (en) * | 2006-05-19 | 2007-11-21 | 山崎马扎克公司 | Metal mould for plate bending apparatus and its manufacture |
| US20130019650A1 (en) * | 2011-07-23 | 2013-01-24 | Wilson Tool International Inc. | Tooling assemblies and systems |
| EP2641668A1 (en) * | 2012-03-21 | 2013-09-25 | Trumpf Maschinen Austria GmbH & CO. KG. | Sheet metal bending machine |
| CN202845573U (en) * | 2012-09-14 | 2013-04-03 | 武汉光谷机电科技有限公司 | Adjustable arc-shaped die |
| US20160136706A1 (en) * | 2013-06-20 | 2016-05-19 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Bending tool |
| US20170239701A1 (en) * | 2014-10-08 | 2017-08-24 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Handling system for bending tools |
| JP2016107269A (en) * | 2014-12-02 | 2016-06-20 | 株式会社泉陽商会 | Die for press |
| EP3311931A1 (en) * | 2016-10-24 | 2018-04-25 | Teda S.R.L | Tool locking device for a machine tool, particularly for a folding press |
| CN113351754A (en) * | 2021-06-11 | 2021-09-07 | 中国水利水电第六工程局有限公司 | Gradual change section steel pipe pressing die and using process thereof |
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