CN104043709A - Continuously bent belt correction bending mechanism - Google Patents
Continuously bent belt correction bending mechanism Download PDFInfo
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- CN104043709A CN104043709A CN201410258165.9A CN201410258165A CN104043709A CN 104043709 A CN104043709 A CN 104043709A CN 201410258165 A CN201410258165 A CN 201410258165A CN 104043709 A CN104043709 A CN 104043709A
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Abstract
The invention discloses a continuously bent belt correction bending mechanism, comprising a fixed bend punch, a movable bend punch and a tapered wedge guide block, wherein the movable bend punch is connected below the fixed bend punch, and the movable bend punch and the fixed bend punch are of a movable structure for overlapping bend punches in the second bending process and the third bending process; positions, corresponding to the fixed bend punch and the movable bend punch, of a swaging plate are provided with through holes, the overlapped movable bend punch and fixed bend punch penetrates through the through holes in the middle of the swaging plate; the tapered wedge guide block is connected to one side of a lower die seat bending block and is provided with a guide block inclined surface, the movable bend punch is provided with a punch inclined surface, and the guide block inclined surface and the punch inclined surface are matched for use, so that the existing second bending process and the existing third bending process are effectively combined into one process, the time of replacing dies in the bending process is saved, and the manufacturing cost and the maintenance cost of a set of die are also reduced.
Description
Technical field
The present invention relates to cold stamping bending technical field, particularly relate to a kind of folding band that connects compared with shape bending mechanism.
Background technology
In cold stamping field, often have bending operation, when bending angle tolerance is little, and material resilience is when large, often need after bending, increase trimming and carry out angle revisal and suppress the stability that guarantees angle.
Following Fig. 6 is bending example, and needing bending material is that material is S550MC, the part that thickness T is 3.0cm, and its bending angle is 90.0 ± 0.1.
First it is carried out to industrial analysis: material is S550MC, T=3.0, this elastic properties of materials is very large, but that its angle requires is high, and tolerance only has ± and 0.1.Angle is difficult to control.Need to adopt multistep bending, and the controlled and stability of its angle of shaping guarantee.
Existing bending technique level, the bending angle that completes this precision, need carry out three bending steps.
First technique, carries out 45 degree bendings as shown in Figure 7.
The process of the bender of this step is: will treat that bending workpieces 8 is placed between 45 degree counterdie folded block 7' and holding pad 3 ', to the holding pad 3 ' Fp that exerts pressure, now re-use 45 degree Bending punch 1 ' stamped workpieces 8, to obtain the workpiece 8 ' of bending 45 degree, in this punching mechanism, the lower-left side of 45 degree Bending punches 1 ' is provided with the inclined-plane 101 ' of 45 degree, the upper right side of 45 degree counterdie folded block 7' is provided with the ramp of inclined surface 101 ', thereby has guaranteed bending workpieces bending to 45 accurately degree.
Second technique, carries out as shown in Figure 8, the bending from 45 degree to 90 degree.
45 degree are to the bending of 90 degree, the bending workpieces 8 ' for the treatment of that is bent into 45 degree is placed in to holding pad 3 ' ' and counterdie bending plate 7 ' ' between, the stamping surface 101 ' of this counterdie bending part 7 ' ' with Bending punch 1 ' ' ' face that coordinates is vertical plane, thereby what obtain 90 degree treats bending workpieces 8 ' ', when this operation completes, obtain treating bending workpieces 8 ' ' be 90 degree, but precision can not guarantee in ± 0.1.
San road technique, carry out as shown in Figure 9 shown in precision compared with shape.
The precision of this operation is compared with shape, employing arranges wedge guide block 4 ' in movable Bending punch 2 ' below, treat bending workpieces 8 ' ' be still placed on holding pad 3 ' and counterdie folded block 7 ' ' ' between, but the counterdie folded block 7 ' mating surface 71 ' of wedge guide block 4 ' ' ' with ' ' be inclined-plane, in addition wedge guide block 4 ' is inclined-plane with the mating surface 41 ' of movable Bending punch 2 ', during movable Bending punch 2 ' punching press, directly punching press is upper to the inclined-plane 41 ' of wedge guide block 4 ', and wedge guide block 4 ' is punching press workpiece 8 ' to be punched again ' complete precision compared with shape.
In sum, from Fig. 6 to Fig. 8, can find out from the graph, bending material is that material is S550MC, the part that thickness T is 3.0cm, and requiring bending angle is 90.0 ± 0.1.This technique need to be carried out three steps, and each processing step need to use no bending He compare shape mechanism, the complex procedures of bending, and the process-cycle is longer, increased undoubtedly manufacturing cost and the maintenance cost of mould, and productivity ratio is not high.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of folding band that connects compared with shape bending mechanism, its object is, simplify the bending technique step of cold stamping bending parts, shorten the bending cycle of punching press parts, reduce manufacturing cost and the maintenance cost of mould, enhance productivity.
The technical solution adopted in the present invention is: a kind of folding band that connects, compared with shape bending mechanism, comprises die shoe, and the die shoe folded block that is fixed on die shoe top, and the workpiece of required bending is placed on die shoe folded block top, and adopts holding pad to compress; Compared with prior art, bending mechanism of the present invention also comprises fixedly Bending punch, movable Bending punch, wedge guide block, movable Bending punch is connected to fixedly Bending punch below, and movable Bending punch and fixedly Bending punch are movable structure, the Bending punch of second bending technique He tri-road bending techniques is superimposed together; In addition, the position of the corresponding fixedly Bending punch of holding pad and movable Bending punch offers through hole, fixedly Bending punch after superimposed and movable Bending punch are through the through hole in the middle of holding pad, through hole plays the effect of guiding movable ram on the one hand, in the time of can not using in mechanism on the other hand, protection activity Bending punch; And wedge guide block is connected to a side of die shoe folded block, wedge guide block is provided with guide block inclined-plane, and movable Bending punch is provided with drift inclined-plane, and guide block inclined-plane and drift inclined-plane are used in conjunction with, and completes after the bending degree of to be processed compared with shape precision process.By above-mentioned technological means, thereby existing second bending technique He tri-road bending techniques are combined into technical process effectively one, have saved the time of mold exchange in Forging Process, and saved manufacture and the maintenance cost of a mold.
Preferably, fixedly the below of Bending punch is provided with " T " font groove with the position that movable Bending punch is connected, the top of movable Bending punch is provided with " T " font projection with the position that fixedly Bending punch is connected, fixedly " T " font groove of Bending punch and movable Bending punch " T " font projection are used in conjunction with, and fixedly " T " font groove of Bending punch is matched in clearance with coordinating of movable Bending punch " T " font projection, so that realizing fixedly Bending punch coordinates with the activity of movable Bending punch, thereby in same mould, realized continuously to be processed from degree bending state to degree and degree precision compared with shape technique.
Preferably, the opposite, drift inclined-plane of activity bending head is also provided with groove, thereby assurance activity Bending punch can be along sliding on the degree inclined-plane of to be processed.
Preferably, to be processed position of groove contact is also provided with fillet, thereby effectively avoided the movable Bending punch can the scuffing on surface to machined part when sliding on the degree inclined-plane of to be processed, guaranteed the good appearance of to be processed.
Preferably, for compared with to be processed after shape bending degree, be provided with guide groove on die shoe, guide groove is connected to a side of counterdie folded block, and wedge guide block is connected to slip in guide groove.
As preferably, the other end of guide groove is also provided with block key, and the face that counterdie folded block contacts with workpiece to be processed is inclined-plane, thereby limits the sliding position of wedge guide block, thereby guarantees the precision of to be processed.
Compared with prior art, the invention has the beneficial effects as follows: compared with prior art, bending mechanism of the present invention also comprises fixedly Bending punch, movable Bending punch, wedge guide block, movable Bending punch is connected to fixedly Bending punch below, and movable Bending punch and fixedly Bending punch are movable structure, the Bending punch of second bending technique He tri-road bending techniques is superimposed together; In addition, the position of the corresponding fixedly Bending punch of holding pad and movable Bending punch offers through hole, fixedly Bending punch after superimposed and movable Bending punch are through the through hole in the middle of holding pad, through hole plays the effect of guiding movable ram on the one hand, in the time of can not using in mechanism on the other hand, protection activity Bending punch; And wedge guide block is connected to a side of die shoe folded block, wedge guide block is provided with guide block inclined-plane, and movable Bending punch is provided with drift inclined-plane, and guide block inclined-plane and drift inclined-plane are used in conjunction with, and completes after the bending degree of to be processed compared with shape precision process.By above-mentioned technological means, thereby existing second bending technique He tri-road bending techniques are combined into technical process effectively one, have saved the time of mold exchange in Forging Process, and saved manufacture and the maintenance cost of a mold.
Bending mechanism of the present invention, has simplified bending technique engineering, has shortened the time of mold exchange in Forging Process, and has saved manufacture and the maintenance cost of a mold, has improved the bending operating efficiency in cold stamping field.
Accompanying drawing explanation
Fig. 1 is the state of the movable Bending punch of one embodiment of the present of invention while just having touched product;
Fig. 2 is the fixedly Bending punch of one embodiment of the present of invention and the front view of movable Bending punch;
Fig. 3 is the fixedly Bending punch of one embodiment of the present of invention and the side view of movable Bending punch;
Fig. 4 is the structural representation that the movable Bending punch vector of one embodiment of the present of invention becomes Fa;
Fig. 5 is before the stroke of the movable Bending punch of one embodiment of the present of invention is ended, the case of bending figure that workpiece is proofreaied and correct;
Fig. 6 is the workpiece end-state figure of required processing of the present invention;
Fig. 7 is the structural representation of bending mechanism of the first bending technique of the workpiece in Fig. 6;
Fig. 8 is the structural representation of bending mechanism of second bending technique of the prior art of the workpiece in Fig. 6;
Fig. 9 is the structural representation of bending mechanism of the prior art tri-road bending techniques of the workpiece in Fig. 6;
Figure 10 is the ears bending part structural representation of embodiments of the invention two;
Figure 11 is the structural representation of the mold closing state of embodiments of the invention two when bending;
Figure 12 is the structural representation of the die opening state of embodiments of the invention two when bending;
Wherein: 1-is Bending punch fixedly, the movable Bending punch of 2-, 3-holding pad, 4-wedge guide block, 5-block key, 6-die shoe, 7-counterdie folded block, 8-treats bending workpieces, 9-through hole, 10-ears.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is further described, and this embodiment, only for explaining the present invention, does not form and limits protection scope of the present invention.
As shown in Figure 1 to Figure 3, a kind of folding band that connects, compared with shape bending mechanism, comprises die shoe 6, and the die shoe folded block 7 that is fixed on die shoe 6 tops, and the workpiece 8 of required bending is placed on die shoe folded block 7 tops, and adopts holding pad 3 to compress; Compared with prior art, bending mechanism of the present invention also comprises fixedly Bending punch 1, movable Bending punch 2, wedge guide block 4, movable Bending punch 2 is connected to fixedly Bending punch 1 below, and movable Bending punch 2 and fixedly Bending punch 1 are movable structure, and the Bending punch of second bending technique He tri-road bending techniques is superimposed together; In addition, the position of the corresponding fixedly Bending punch 1 of holding pad 3 and movable Bending punch 2 offers through hole 31, fixedly Bending punch 1 after superimposed and movable Bending punch 2 are through the through hole 31 in the middle of holding pad 3, through hole 31 plays the effect of guiding movable ram 2 on the one hand, in the time of can not using in mechanism on the other hand, protection activity Bending punch 2; And wedge guide block 4 is connected to a side of die shoe folded block 7, wedge guide block 4 is provided with guide block inclined-plane 41, movable Bending punch 2 is provided with drift inclined-plane 203, and guide block inclined-plane 41 is used in conjunction with drift inclined-plane 203, completes after bending 90 degree of to be processed 8 compared with shape precision process.By above-mentioned technological means, thereby existing second bending technique He tri-road bending techniques are combined into technical process effectively one, have saved the time of mold exchange in Forging Process, and saved manufacture and the maintenance cost of a mold.
In the present invention, the position that fixedly below of Bending punch 1 is connected with movable Bending punch 2 is provided with " T " font groove 101, the top of movable Bending punch 2 is provided with " T " font projection 204 with the position that fixedly Bending punch 1 is connected, fixedly " T " font groove 101 of Bending punch 1 is used in conjunction with movable Bending punch 2 " T " font projection 204, and fixedly " T " font groove 101 of Bending punch 1 is matched in clearance with coordinating of movable Bending punch 2 " T " font projection 204, so that realizing fixedly Bending punch 1 coordinates with the activity of movable Bending punch 2, thereby in same mould, realized continuously to be processed 8 from 45 degree bending state to 90 degree and 90 degree precision compared with shape technique.
In addition, 203 opposites, drift inclined-plane of activity bending 2 are also provided with groove 202, thereby assurance activity Bending punch 2 can be along sliding on the 45 degree inclined-planes of to be processed 8.To be processed 8 positions of groove 202 contact are also provided with fillet 201, thereby have effectively avoided the movable Bending punch 2 can the scuffing on 8 surfaces to machined part when sliding on the 45 degree inclined-planes of to be processed 8, have guaranteed the good appearance of to be processed 8.
For compared with to be processed 8 after shape bending 90 degree, on die shoe 6, be provided with guide groove 61, guide groove 61 is connected to a side of counterdie folded block 7, and wedge guide block 4 is connected to the interior slip of guide groove 61.The other end of guide groove 61 is also provided with block key 5, and the face 71 that counterdie folded block 7 contacts with workpiece to be processed 8 is inclined-plane, thereby limits the sliding position of wedge guide block 4, thereby guarantees the precision of to be processed 8.
As shown in Figures 2 and 3, fixedly the side length B of Bending punch 1 is greater than the side length C of movable Bending punch 2, i.e. B>C, and A in Fig. 5 represents the activity of movable Bending punch 2 in fixing Bending punch 1, i.e. B-C=A.
Embodiment mono-
As shown in Figure 1, Figure 4 and Figure 5, be respectively and use a set of fixedly Bending punch and movable Bending punch to carry out cold-stamped process schematic diagram to simple part, wherein Fig. 1 is that Fig. 1 is the movable Bending punch of one embodiment of the present of invention state while just having touched product, now movable Bending punch 2 is under the effect of the frictional force F with to be processed 8, the 45 degree bevel directions along to be processed 8 glide, under when sliding to fixing Bending punch 1 and touching the 45 degree inclined-plane of to be processed 8, fixedly Bending punch 1 beginning punching press is for workpiece 8 to 90 degree bending states; Fig. 4 is the structural representation that the movable Bending punch vector of one embodiment of the present of invention becomes Fa, and now 90 degree bendings finish, and 90 degree start to prepare compared with shape; Fig. 5 is before the stroke of the movable Bending punch of one embodiment of the present of invention is ended, the case of bending figure that workpiece is proofreaied and correct.
In addition, according to the needs of the shape of to be processed 8, can arrange many covers fixedly Bending punch 1 and movable Bending punch 2 be used in conjunction with, as shown in Fig. 1 or Figure 11.
Embodiment bis-
For the ears that meet are as shown in figure 10 treated bending part, these ears are treated to offer a pair of through hole 9 on the ears 10 of bending part, and the axiality of a pair of through hole 9 on designing requirement ears must not be greater than 0.2, material SPFH540, and thickness T=2.0, need batch production.
Industrial analysis: material resilience is large, and band turning bending difficulty is high, opening size requires 8+0.2, and tolerance is little, and the stability of bending angle is coaxial 0.2 the key factor that affects two holes, side.
Process program: the progressive die, bending two steps, the first step adopts prior art bending 45 degree, and second step utilizes the present invention to connect folding band shaping bending mechanism, treats as shown in figure 11 company's folding band reshaping structure schematic diagram of bending part for these ears.
As shown in figure 11, the present embodiment is provided with two covers fixedly Bending punch 1 and movable Bending punch 2, each is a movable Bending punch 2 of Bending punch 1 connection fixedly, thereby form a set of apparatus for bending, realize a face bending of workpiece 8, the two cover apparatus for bending of the present embodiment adopt the mode connecting side by side, to adapt to ears, treat the bending of bending part, and in order to meet ears bending simultaneously, a set of apparatus for bending of the present embodiment is provided with respectively a wedge guide block 4 and a block key 5 accordingly, and counterdie folded block 7 is arranged between two cover bending mechanisms, bending when realizing ears bending part, the shape of counterdie bending part is in order to realize the bending simultaneously of ears bending part, can do adaptive change.
Bending mechanism of the present invention, has simplified bending technique engineering, has shortened the time of mold exchange in Forging Process, and has saved manufacture and the maintenance cost of a mold, has improved the bending operating efficiency in cold stamping field.
What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily, according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise depart from spirit of the present invention, all in protection scope of the present invention.
Claims (9)
1. even roll over band compared with shape bending mechanism for one kind, comprise die shoe (6), and the die shoe folded block (7) that is fixed on described die shoe (6) top, the workpiece of required bending (8) is placed on die shoe folded block (7) top, and adopts holding pad (3) to compress;
It is characterized in that: described bending mechanism also comprises fixedly Bending punch (1), movable Bending punch (2), wedge guide block (4), described movable Bending punch (2) is connected to fixedly Bending punch (1) below, and described movable Bending punch (2) is movable structure with fixing Bending punch (1);
The position of the corresponding fixedly Bending punch (1) of described holding pad (3) and movable Bending punch (2) offers through hole (31), and described fixedly Bending punch (1) and movable Bending punch (2) are through the through hole (31) in the middle of holding pad (3);
And described wedge guide block (4) is connected to a side of die shoe folded block (7), described wedge guide block (4) is provided with guide block inclined-plane (41), described movable Bending punch (2) is provided with drift inclined-plane (203), and described guide block inclined-plane (41) is used in conjunction with drift inclined-plane (203).
2. a kind of folding band that connects according to claim 1 is compared with shape bending mechanism, it is characterized in that: the position that the below of described fixedly Bending punch (1) is connected with movable Bending punch (2) is provided with " T " font groove (101), the top of described movable Bending punch (2) is provided with " T " font projection (204) with the position that fixedly Bending punch (1) is connected.
3. a kind of folding band that connects according to claim 2, compared with shape bending mechanism, is characterized in that: " T " font groove (101) of described fixedly Bending punch (1) is used in conjunction with described movable Bending punch (2) " T " font projection (204).
4. according to a kind of folding that connects described in claim 1-3 any one, be with compared with shape bending mechanism, it is characterized in that: " T " font groove (101) of described fixedly Bending punch (1) is matched in clearance with coordinating of described movable Bending punch (2) " T " font projection (204).
5. a kind of folding band that connects according to claim 4, compared with shape bending mechanism, is characterized in that: the opposite, drift inclined-plane (203) of described activity bending head (2) is also provided with groove (202).
6. a kind of folding band that connects according to claim 5, compared with shape bending mechanism, is characterized in that: described groove (202) contacts to be processed (8) position and is also provided with fillet (201).
7. a kind of folding band that connects according to claim 1 is compared with shape bending mechanism, it is characterized in that: on described die shoe (6), be provided with guide groove (61), described guide groove (61) is connected to a side of counterdie folded block (7), and described wedge guide block (4) is connected to slip in guide groove (61).
8. a kind of folding band that connects according to claim 7, compared with shape bending mechanism, is characterized in that: the other end of described guide groove (61) is also provided with block key (5).
9. a kind of folding band that connects according to claim 7, compared with shape bending mechanism, is characterized in that: the face (71) that described counterdie folded block (7) contacts with workpiece to be processed (8) is inclined-plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258165.9A CN104043709B (en) | 2014-07-24 | 2014-07-24 | Continuously bent belt correction bending mechanism |
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| CN201410258165.9A CN104043709B (en) | 2014-07-24 | 2014-07-24 | Continuously bent belt correction bending mechanism |
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| CN104043709B CN104043709B (en) | 2017-01-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104438858A (en) * | 2014-12-23 | 2015-03-25 | 无锡微研有限公司 | Upward bending correction mechanism |
| CN105215202A (en) * | 2015-11-17 | 2016-01-06 | 重庆持恒模具有限公司 | Bending mould |
| CN105834303A (en) * | 2016-05-05 | 2016-08-10 | 勤钦精密工业(昆山)有限公司 | Wrap angle bending mechanism for adjusting angle of product |
| CN107695193A (en) * | 2017-10-24 | 2018-02-16 | 惠州市百思德精密部件有限公司 | Bending is more than stamping forming die lamps structure of an angle of 90 degrees |
| CN108188282A (en) * | 2018-03-30 | 2018-06-22 | 安徽协诚实业股份有限公司 | A kind of tie rod bending anti-rebounding improves mould |
| CN109261843A (en) * | 2018-11-27 | 2019-01-25 | 贵州航太精密制造有限公司 | A kind of washer bending and forming tooling and the manufacturing process to the bending of washer part |
| CN110216199A (en) * | 2019-06-14 | 2019-09-10 | 安徽新悦精密机械有限公司 | A kind of swing block type bend forming die |
| CN114523015A (en) * | 2022-02-17 | 2022-05-24 | 鹰普航空科技有限公司 | Profiling bending machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104438858A (en) * | 2014-12-23 | 2015-03-25 | 无锡微研有限公司 | Upward bending correction mechanism |
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| CN108188282A (en) * | 2018-03-30 | 2018-06-22 | 安徽协诚实业股份有限公司 | A kind of tie rod bending anti-rebounding improves mould |
| CN109261843A (en) * | 2018-11-27 | 2019-01-25 | 贵州航太精密制造有限公司 | A kind of washer bending and forming tooling and the manufacturing process to the bending of washer part |
| CN109261843B (en) * | 2018-11-27 | 2023-10-10 | 贵州航太精密制造有限公司 | Gasket bending forming tool and forming method for locally bending gasket |
| CN110216199A (en) * | 2019-06-14 | 2019-09-10 | 安徽新悦精密机械有限公司 | A kind of swing block type bend forming die |
| CN114523015A (en) * | 2022-02-17 | 2022-05-24 | 鹰普航空科技有限公司 | Profiling bending machine |
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