CN107282780B - A kind of bending lower die - Google Patents
A kind of bending lower die Download PDFInfo
- Publication number
- CN107282780B CN107282780B CN201710644363.2A CN201710644363A CN107282780B CN 107282780 B CN107282780 B CN 107282780B CN 201710644363 A CN201710644363 A CN 201710644363A CN 107282780 B CN107282780 B CN 107282780B
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- Prior art keywords
- plane
- bending
- press plate
- positioning
- short groove
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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
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/002—Positioning devices
Abstract
The invention discloses a kind of bending lower dies, including press plate, have the first inclined-plane, the second inclined-plane, third inclined-plane for being successively at an angle of connection, press plate is in substantially symmetrical about its central axis along the connection direction on the first inclined-plane, the second inclined-plane, third inclined-plane, central axis two sides constitute the bending region at two for bending part, bending region respectively has a long recess and a short groove, long recess is connected to the first inclined-plane, the second inclined-plane, third inclined-plane, short groove is located on the second inclined-plane, and the groove depth of long recess and short groove is constant；Lower cutter block, by being contacted with press plate and axial symmetry is arranged in the first lower cutter block of two sides and the second lower cutter block is constituted；Positioning tool, is fixed on press plate surrounding, has the positioning profile to match with the angle of bending part salient angle, fillet.It pressure plate and cuts block nesting and is fixed in the cross intermediate channel of low mold frame.The efficiency of plate semi-finished product punching press deformation is improved using the invention, improves the structural strength of finished product bending part.
Description
Technical field
The present invention relates to automobile die fields, and in particular to a kind of bending lower die.
Background technique
Bending die, bending process are the needs according to part shape, and blank is curved certain angle by mold and press machine
Degree, the Sheet Metal Forming Technology method of certain shapes workpiece.The application of curved super-long structure in the industrial production is quite extensive, on automobile
It is many to carry out cover piece and tank bracket component.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of bending lower die, improves the efficiency of plate semi-finished product punching press deformation,
Improve the structural strength of finished product bending part.
To solve the above problems, the present invention provides a kind of bending lower die, in order to achieve the above objectives, the present invention solves its technology
Technical solution used by problem is:
A kind of bending lower die, comprising: press plate has the first inclined-plane, the second inclined-plane, third for being successively at an angle of connection
Inclined-plane, press plate are in substantially symmetrical about its central axis, central axis two sides structure along the connection direction on the first inclined-plane, the second inclined-plane, third inclined-plane
At the bending region at two for bending part, bending region respectively has a long recess and a short groove, long recess connection first
Inclined-plane, the second inclined-plane, third inclined-plane, short groove are located on the second inclined-plane, and the groove depth of long recess and short groove is constant；Lower cutter block,
By being contacted with press plate and axial symmetry is arranged in the first lower cutter block of two sides and the second lower cutter block is constituted；Positioning tool, is fixed on
Press plate surrounding has the positioning profile to match with the angle of bending part salient angle, fillet.
Beneficial effect by adopting the above technical scheme is: by flat semi-finished product punch forming, main body with the first inclined-plane,
Second inclined-plane, third inclined-plane angle be converted into three sections, while stamping out the muscle identical with long recess, short groove, long recess is corresponding
Muscle because be connected to three inclined-planes, improve the angular relationship after the completion of punching press between three sections of faces, short groove is corresponding
Muscle improves the structural strength of the corresponding interlude in the second inclined-plane.
Lower cutter block can stamp out flange, and flange is substantially perpendicular with inclined-plane, and flange further enhances after the completion of punching press
Three sections of respective structural strengths of bent plate.Lower cutter block is non-integral with press plate, simplifies mold manufacture difficulty, convenient for splitting
Combination or maintenance.
Positioning tool then plays the precise positioning for waiting for tabular bending sheets, because finished product is than semi-finished product perpendicular after bending
It is reduced when the upward projected outline's size of histogram.So the surrounding of press plate is arranged in positioning tool, to the half of flat condition
Finished product, which plays, accurately to be positioned, and is not interfered the finished product after bending process and bending but.
As a further improvement of the present invention, dismountable tag block is equipped between long recess and adjacent short groove.
Beneficial effect by adopting the above technical scheme is: tag block is the block for being embedded in one piece of tape character in press plate,
Structure can be stamped out by replacing the tag block with kinds of characters in the case where not changing under the structure of cutter block and press plate
Identical but different character label finished product adapts to the needs of production mark.
As a further improvement of the present invention, have middle seam, the central axis weight of middle seam and press plate on the first inclined-plane
It closes.
Beneficial effect by adopting the above technical scheme is: middle seam plays two pieces of bending parts of prompt and verification, and whether axial symmetry obtains
The effect being placed in press plate, if not axial symmetry, operating personnel by observation in stitch whether between two bending parts gap
Centre can discover, middle stitch nor affects on the flatness on the first inclined-plane, does not influence bending.
As further improvement of the invention, has open recess on third inclined-plane.
Beneficial effect by adopting the above technical scheme is: due to the non-simple wheel profile of the two pieces of bending parts symmetrically controlled
Shape, it is narrow that the gap between them has width to have, and the middle seam in narrow gap on corresponding first inclined-plane, then area is larger in wide gap,
Open recess is equipped in corresponding press plate here, opening recess is more recessed than the plane of press plate, is not involved in doubling
The bending of comer pieces.Non-working surface, that is, depression treatment in pressure plate while not influencing operation, reduces required essence in pressure plate
The area of processing reduces the manufacturing cost of mold.
As further improvement of the invention, profile is positioned in vertically extending, each bending part is divided by three positioning tools
Other three salient angles to bending part position.
Beneficial effect by adopting the above technical scheme is: positioning have with to the corresponding profile of bending sheets salient angle, root
According to the position of angle and the restriction of fillet size to bending semifinished sheet to bending sheets salient angle, every piece has three to bending sheets
A positioning tool limits, it is sufficient to limit the freedom degree to bending sheets, make to be in bending sheets and the reasonable position of press plate
On.Meanwhile it positioning and having vertically extending profile and do not influence plate to be bent because pressing and bending moves down.That is positioning tool limits
Plate freedom degree to be bent, in addition to facing the vertically moving freedom degree of press plate directly.
As further improvement of the invention, positioning has waist-shaped hole, and the length direction of waist-shaped hole is directed toward lower binder
Plate.
Beneficial effect by adopting the above technical scheme is: waist-shaped hole, can finely tune the position of positioning tool, i.e., fine tuning is opposite sets
The distance between positioning tool set, goes out optimal orientation distance to adapt to Field adjustment.
As further improvement of the invention, press plate and cuts block nesting and is fixed in the intermediate channel of low mold frame,
Intermediate channel is in cross.
Beneficial effect by adopting the above technical scheme is: the intermediate channel of low mold frame provides limit for press plate and lower cutter block
Position.Criss-cross intermediate channel limit respectively the angular turn peace of press plate and lower cutter block in horizontal plane be moved from by
Degree, accurate positioning.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the perspective view of plate slug mold；
Fig. 2 is the top view of one embodiment of the present invention；
Fig. 3 is the perspective view of one embodiment of the present invention；
Fig. 4 is partial enlarged view at the A of one embodiment of the present invention；
Fig. 5 is the perspective view of finished product bending part.
Press plates under 1-；2- bottom seat pad；3- lower die holder；4- lower bolster；5- low mold frame；The positioning tool of 6a- first；6b- second
Positioning tool；6c- third positioning tool；The positioning tool of 6d- the 4th；The positioning tool of 6e- the 5th；The positioning tool of 6f- the 6th；The lower cutter block of 7a- first；
The lower cutter block of 7b- second；8- press plate；The first inclined-plane 8a-；The second inclined-plane 8b-；8c- third inclined-plane；8d- opening recess；8e-
Middle seam；The short groove of 8f-；8g- long recess；9- tag block；10- waist-shaped hole；11- lifting lug；12- flat cutter block.
Specific embodiment
Combined with specific embodiments below, the contents of the present invention are described in further detail:
In order to reach the purpose of the present invention, Fig. 1 shows slug molds used in preamble technique of the present invention, pass through this mould
Flat cutter block 12 in tool by material plate be punched out contoured shape semi-finished product plate to bending part, utilize this hair later
Bright double of finished flat carries out pressing and bending.
A kind of bending lower die, comprising: press plate 8 have successively be at an angle of connection the first inclined-plane 8a, the second inclined-plane 8b,
Third inclined-plane 8c, press plate 8 along the connection direction of the first inclined-plane 8a, the second inclined-plane 8b, third inclined-plane 8c in substantially symmetrical about its central axis,
Central axis two sides constitute the bending region at two for bending part, and bending region respectively has a long recess 8g and a short groove
8f, long recess 8g are connected to the first inclined-plane 8a, the second inclined-plane 8b, third inclined-plane 8c, and short groove 8f is located at 8b on the second inclined-plane, and length is recessed
The groove depth of slot 8g and short groove 8f are constant；Lower cutter block with press plate 8 by contacting and axial symmetry is arranged in the first of two sides and cuts
The lower cutter block 7b of block 7a and second is constituted；Positioning tool is fixed on 8 surrounding of press plate, has and the angle of bending part salient angle, fillet
The positioning profile to match.
The groove depth of long recess 8g and short groove 8f are constant, i.e. long recess 8g be also along the first inclined-plane 8a, the second inclined-plane 8b,
The tendency of third inclined-plane 8c is recessed constant depth, the muscle protrusion height for the bending part that long recess 8g and short groove 8f stamp out
It is constant.
Beneficial effect by adopting the above technical scheme is: by flat semi-finished product punch forming, main body with the first inclined-plane,
Second inclined-plane, third inclined-plane angle be converted into three sections, while stamping out the muscle identical with long recess, short groove, long recess is corresponding
Muscle because be connected to three inclined-planes, improve the angular relationship after the completion of punching press between three sections of faces, short groove is corresponding
Muscle improves the structural strength of the corresponding interlude in the second inclined-plane.
Lower cutter block can stamp out flange, and flange is substantially perpendicular with inclined-plane, and flange further enhances after the completion of punching press
Three sections of respective structural strengths of bent plate.Lower cutter block is non-integral with press plate, simplifies mold manufacture difficulty, convenient for splitting
Combination or maintenance.
Positioning tool then plays the precise positioning for waiting for tabular bending sheets, because finished product is than semi-finished product perpendicular after bending
It is reduced when the upward projected outline's size of histogram.So the surrounding of press plate is arranged in positioning tool, to the half of flat condition
Finished product, which plays, accurately to be positioned, and is not interfered the finished product after bending process and bending but.
Dismountable label is equipped in other embodiments of the invention, between long recess 8g and adjacent short groove 8f
Block 9.The development length of long recess 8g is greater than the development length of short groove 8f.
Beneficial effect by adopting the above technical scheme is: tag block is the block for being embedded in one piece of tape character in press plate,
Structure can be stamped out by replacing the tag block with kinds of characters in the case where not changing under the structure of cutter block and press plate
Identical but different character label finished product adapts to the needs of production mark.
In other embodiments of the invention, have middle seam 8e, middle seam 8e and press plate 8 on the first inclined-plane 8a
Center overlapping of axles.
Beneficial effect by adopting the above technical scheme is: middle seam plays two pieces of bending parts of prompt and verification, and whether axial symmetry obtains
The effect being placed in press plate, if not axial symmetry, operating personnel by observation in stitch whether between two bending parts gap
Centre can discover, middle stitch nor affects on the flatness on the first inclined-plane, does not influence bending.
In other embodiments of the invention, has open recess 8d on third inclined-plane 8c.Opening recess 8d is whole
It is recessed than third inclined-plane 8c.
Beneficial effect by adopting the above technical scheme is: due to the non-simple wheel profile of the two pieces of bending parts symmetrically controlled
Shape, it is narrow that the gap between them has width to have, and the middle seam in narrow gap on corresponding first inclined-plane, then area is larger in wide gap,
Open recess is equipped in corresponding press plate here, opening recess is more recessed than the plane of press plate, is not involved in doubling
The bending of comer pieces.Non-working surface, that is, depression treatment in pressure plate while not influencing operation, reduces required essence in pressure plate
The area of processing reduces the manufacturing cost of mold.
In other embodiments of the invention, as shown in Figure 1, shown in Figure 5, a semi-finished product bending part main body is at four sides
Shape has four salient angles.As shown in Fig. 2, the first positioning tool 6a, the second positioning tool 6b, the 6th positioning tool 6f fix one jointly
Three salient angles of block bending part, third positioning tool 6c, the 4th positioning tool 6d, the 5th positioning tool 6e fix one piece of bending part jointly
Three salient angles.
As shown in figure 4, positioning profile is in vertically extending, i.e. the shape one of the horizontal sectional view of the positioning profile of positioning tool
It causes.
Beneficial effect by adopting the above technical scheme is: positioning have with to the corresponding profile of bending sheets salient angle, root
According to the position of angle and the restriction of fillet size to bending semifinished sheet to bending sheets salient angle, every piece has three to bending sheets
A positioning tool limits, it is sufficient to limit the freedom degree to bending sheets, make to be in bending sheets and the reasonable position of press plate
On.Meanwhile it positioning and having vertically extending profile and do not influence plate to be bent because pressing and bending moves down.That is positioning tool limits
Plate freedom degree to be bent, in addition to facing the vertically moving freedom degree of press plate directly.
In other embodiments of the invention, the first positioning tool 6a, the second positioning tool 6b, third positioning tool 6c, the
Four positioning tool 6d, the 5th positioning tool 6e, the 6th positioning tool 6f are provided with waist-shaped hole 10, and the length direction of waist-shaped hole 10, which is directed toward, to be pushed
Flitch 8.
Beneficial effect by adopting the above technical scheme is: waist-shaped hole, can finely tune the position of positioning tool, i.e., fine tuning is opposite sets
The distance between positioning tool set, goes out optimal orientation distance to adapt to Field adjustment.
In other embodiments of the invention, press plate 8 and the first lower cutter block 7a, the second lower cutter block 7b are nested solid
Due in the intermediate channel of low mold frame 5, the horizontal cross-section of intermediate channel is in cross.
Beneficial effect by adopting the above technical scheme is: the intermediate channel of low mold frame provides limit for press plate and lower cutter block
Position.Criss-cross intermediate channel limit respectively the angular turn peace of press plate and lower cutter block in horizontal plane be moved from by
Degree, accurate positioning.
First inclined-plane 8a and the second inclined-plane 8b intersection have fillet, and the second inclined-plane 8b also has with third inclined-plane 8c intersection
Standby fillet.Therefore bending part after bending also has fillet.
Low mold frame 5 is successively connect with lower bolster 4, lower die holder 3 from top to bottom, and lower die holder 3 passes through bottom seat pad 2 and lower press again
Plate 1 connects.Hierarchical design makes have larger and uniform ability to bear.
As shown in figure 3, the quadrangle of lower die holder 3 is equipped with the lifting lug 11 for facilitating lifting.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (3)
1. a kind of bending lower die characterized by comprising
Press plate has the first inclined-plane, the second inclined-plane, third inclined-plane for being successively at an angle of connection, and the press plate is along the
One inclined-plane, the second inclined-plane, third inclined-plane connection direction in substantially symmetrical about its central axis, central axis two sides constitute the folding at two for bending part
Curved region, the bending region respectively have a long recess and a short groove, and the long recess is connected to the first inclined-plane, second tiltedly
Face, third inclined-plane, the short groove are located on the second inclined-plane, and the groove depth of the long recess and short groove is constant；
Lower cutter block, by being contacted with press plate and axial symmetry is arranged in the first lower cutter block of two sides and the second lower cutter block is constituted；
Positioning tool, is fixed on press plate surrounding, has the positioning profile to match with the angle of bending part salient angle, fillet；
Have middle seam, the center overlapping of axles of the middle seam and press plate on first inclined-plane；Have on the third inclined-plane
Opening recess；
In vertically extending, each bending part is had by three positioning respectively determines three salient angles of bending part the positioning profile
Position；The positioning has waist-shaped hole, and the length direction of waist-shaped hole is directed toward press plate.
2. a kind of bending lower die according to claim 1, it is characterised in that: set between the long recess and adjacent short groove
There is dismountable tag block.
3. a kind of bending lower die according to claim 1, it is characterised in that: the press plate and cut block nesting and fix
In in the intermediate channel of low mold frame, the intermediate channel is in cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710644363.2A CN107282780B (en) | 2017-07-31 | 2017-07-31 | A kind of bending lower die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710644363.2A CN107282780B (en) | 2017-07-31 | 2017-07-31 | A kind of bending lower die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107282780A CN107282780A (en) | 2017-10-24 |
| CN107282780B true CN107282780B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710644363.2A Active CN107282780B (en) | 2017-07-31 | 2017-07-31 | A kind of bending lower die |
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| Country | Link |
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| CN (1) | CN107282780B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802172A (en) * | 2019-11-18 | 2020-02-18 | 梧州奥卡光学仪器有限公司 | Press spring piece bending die |
| CN113479747A (en) * | 2021-06-29 | 2021-10-08 | 美迪斯智能装备有限公司 | Manufacturing tool for elevator door knife guide piece and production processing technology and assembly technology thereof |
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|---|---|---|---|---|
| CN201832905U (en) * | 2010-09-21 | 2011-05-18 | 北汽福田汽车股份有限公司 | Mould system for automobile covering piece |
| CN102294397A (en) * | 2010-06-22 | 2011-12-28 | 北汽福田汽车股份有限公司 | Drawing die |
| CN103406449A (en) * | 2013-08-02 | 2013-11-27 | 龚志辉 | Drawing die for covering parts of automobiles |
| CN103615646A (en) * | 2013-11-15 | 2014-03-05 | 上汽通用五菱汽车股份有限公司 | Stamping part, processing method thereof and stamping die for processing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2866530B2 (en) * | 1992-06-15 | 1999-03-08 | 松下電工株式会社 | Box welding method |
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2017
- 2017-07-31 CN CN201710644363.2A patent/CN107282780B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294397A (en) * | 2010-06-22 | 2011-12-28 | 北汽福田汽车股份有限公司 | Drawing die |
| CN201832905U (en) * | 2010-09-21 | 2011-05-18 | 北汽福田汽车股份有限公司 | Mould system for automobile covering piece |
| CN103406449A (en) * | 2013-08-02 | 2013-11-27 | 龚志辉 | Drawing die for covering parts of automobiles |
| CN103615646A (en) * | 2013-11-15 | 2014-03-05 | 上汽通用五菱汽车股份有限公司 | Stamping part, processing method thereof and stamping die for processing method |
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| CN107282780A (en) | 2017-10-24 |
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