CN104062183A - Plate forming resilience tester - Google Patents
Plate forming resilience tester Download PDFInfo
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- CN104062183A CN104062183A CN201410258267.0A CN201410258267A CN104062183A CN 104062183 A CN104062183 A CN 104062183A CN 201410258267 A CN201410258267 A CN 201410258267A CN 104062183 A CN104062183 A CN 104062183A
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- oil cylinder
- frame
- round roller
- sheet material
- testing machine
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Abstract
The invention discloses a plate forming resilience tester. The plate forming resilience tester comprises a first oil cylinder, a beam, pre-bending mechanism, a workbench, a circular roller mechanism, drawing mechanisms, a second oil cylinder, a punch, a side pressing ring and a concave mould, wherein the first oil cylinder is arranged on the top surface of a rack; the beam is arranged on the rack in a sliding manner and is connected with a telescopic end of the first oil cylinder; the workbench is arranged on the bottom surface of the rack; the drawing mechanisms are arranged on the two sides of the workbench; the second oil cylinder is arranged on the top surface of the rack; the punch is arranged at the telescopic end of the second oil cylinder; the pre-bending mechanism is arranged on the beam by a switching frame; a through hole is formed in the switching frame; the side pressing ring is arranged on the bottom surface of the switching frame; during a drawing bending resilience test, the circular roller mechanism is arranged on the workbench; during a stretching bending resilience test, the concave mould is arranged on the workbench. The second oil cylinder with the punch is additionally arranged on the existing drawing bending resilience tester, and the switching frame is used for integrating the pre-bending mechanism with the side pressing ring, so that during the two tests, only the circular roller mechanism and the concave mould need to be alternatively changed on the workbench, and therefore, dual purposes are achieved, the floor area is small and the cost is low.
Description
Technical field
The present invention relates to plate property test field, refer to particularly a kind of sheet material forming rebound performance testing machine.
Background technology
Resilience refers in Sheet Metal Forming, after external applied load removal, due to the elastic recovery of elastic properties of materials crushed element in the elastic recovery of elastic deformation area's material and plastically deforming area, make its net shape, size all differ from the shape of design, the phenomenon of size.Resilience is the universal phenomenon existing in metal sheet forming process, has directly had influence on forming accuracy (dimensional accuracy and form accuracy) and the quality of part.
In recent years, in order to meet the requirements such as Modern Automobile Body lightweight, energy-efficient, high security, there is the high-strength steel sheet of the features such as high strength, high impact absorption energy and high fatigue resistance, in auto industry, be widely applied.But high-strength steel sheet, because its yield strength is high, makes in forming process, rebound phenomenon is more obvious, and resilience is the most serious problem during current high Strength Steel for Motor Vehicles is shaped, and has become the bottleneck problem of restriction high-strength steel development and application.Therefore, the particularly rebound phenomenon of high-strength steel of research automotive sheet, sums up it and produces reason and rule, and to improving the forming accuracy of high-strength steel, and then it is significant to promote its application.
At present, generally, by the Form springback performance of binding draw rebound test and stretch bending rebound test test sheet material, these two tests generally complete respectively on binding draw rebound test machine and stretch bending rebound test machine.Like this, in the time that being used, reality there is following problem:
Because binding draw rebound test and stretch bending rebound test must complete respectively on two testing machines, so the floor area of testing machine is large and cost is high.
Summary of the invention
The object of the invention is the deficiency existing in order to solve above-mentioned background technology, propose the sheet material forming rebound performance testing machine that a kind of floor area is little and cost is low.
For achieving the above object, a kind of sheet material forming rebound performance testing machine that the present invention is designed, comprise frame, be arranged on the first oil cylinder on described frame end face, be slidably mounted on the crossbeam being connected in described frame and with the telescopic end of described the first oil cylinder, pre-bending mechanism, be arranged on the worktable on described frame bottom surface, round roller mechanism, be arranged in the drawing mechanism of described worktable both sides, be arranged on supercentral the second oil cylinder of described frame end face, be arranged on the drift of the telescopic end of described the second oil cylinder, the blank holder cooperatively interacting and die, described pre-bending mechanism is arranged on described crossbeam by switchover frame, described switchover frame is provided with the through hole that can allow described drift pass, described blank holder is arranged on the position of the corresponding described drift in described switchover frame bottom surface, when binding draw rebound test, described round roller mechanism is arranged on the position of corresponding described drawing mechanism bare terminal end on described worktable, when stretch bending rebound test, described die is arranged on the position of corresponding described drift on described worktable.By add the second oil cylinder with drift on existing binding draw rebound test machine, and by switchover frame, pre-bending mechanism and blank holder are integrated, like this in the time doing binding draw rebound test and stretch bending rebound test, only need alternately change round roller mechanism and the die on worktable, realized the object of dual-use, floor area is little and cost is low.
In such scheme, described switchover frame is arranged on the bottom center place of described crossbeam, described through hole be vertically arranged in described switchover frame in the heart, described pre-bending mechanism is fixedly mounted on the sidewall of described switchover frame.
In such scheme, described blank holder comprises two flanging pieces and a flanging piece backing plate, described two flanging pieces are arranged on described switchover frame bottom surface by described flanging piece backing plate respectively, and the spacing between described two flanging pieces is greater than the lateral length of described round roller mechanism.By described blank holder being designed to split formula structure, avoid blank holder and round roller mechanism to interfere, thereby ensured in two processs of the test, all to dismantle described blank holder, improve test efficiency.
In such scheme, in described the first oil cylinder, described the second oil cylinder and described drawing mechanism, be respectively equipped with measuring sensor.
In such scheme, described measuring sensor is power sensor.
In such scheme, the quantity of described the first oil cylinder is 2, and 2 described the first oil cylinders are arranged in described the second oil cylinder both sides.
In such scheme, described round roller mechanism comprises bearing, round roller, inserts and baffle plate, described inserting is longitudinally inserted on described bearing, in inserting described in described round roller two ends are inserted into, described baffle plate one end is fixedly mounted on described bearing end face, and the described baffle plate other end is fitted on the end face of described round roller.
In such scheme, described in insert and between bottom surface and described bearing, be provided with height regulating block.By described insert and bearing between add height regulating block, can adjust according to actual needs the height of round roller.
In such scheme, described in insert and be provided with compact heap between side and described bearing, on described bearing, the position of corresponding described compact heap side is provided with trip bolt.By described insert and bearing between add compact heap, can adjust according to actual needs the lateral attitude of round roller, insert described in simultaneously also can be further fastening.
The invention has the advantages that:
1, by add the second oil cylinder with drift on existing binding draw rebound test machine, and by switchover frame, pre-bending mechanism and blank holder are integrated, like this in the time doing binding draw rebound test and stretch bending rebound test, only need alternately change round roller mechanism and the die on worktable, realized the object of dual-use, floor area is little and cost is low;
2, by described blank holder being designed to split formula structure, avoid blank holder and round roller mechanism to interfere, thereby ensured in two processs of the test, all to dismantle described blank holder, improved test efficiency;
3, by described insert and bearing between add height regulating block and compact heap, can adjust according to actual needs the working position of round roller; Described in simultaneously also can be further fastening, insert.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the cross-sectional view of Fig. 1;
Fig. 4 is the structural representation of the present invention while doing binding draw rebound test;
Fig. 5 is the structural representation of the present invention while doing stretch bending rebound test;
Fig. 6 is the structural representation of round roller mechanism;
Fig. 7 is the cross-sectional view along A-A line in Fig. 6;
Fig. 8 is the position relationship structural representation between drift, blank holder and die three;
Fig. 9 is the side-looking structural representation of Fig. 8.
In figure: frame 1, the first oil cylinder 2, crossbeam 3, pre-bending mechanism 4, worktable 5, round roller mechanism 6, bearing 6a, round roller 6b, the 6c that inserts, baffle plate 6d, height regulating block 6e, compact heap 6f, trip bolt 6g, drawing mechanism 7, the second oil cylinders 8, drift 9, blank holder 10, flanging piece 10a, flanging piece backing plate 10b, die 11, switchover frame 12, measuring sensor 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Embodiment: sheet material forming rebound performance testing machine as shown in Figure 1, comprise frame 1, be arranged on the first oil cylinder 2 on frame 1 end face, be slidably mounted on the crossbeam 3 being connected in frame 1 and with the telescopic end of the first oil cylinder 2, pre-bending mechanism 4, be arranged on the worktable 5 on frame 1 bottom surface, round roller mechanism 6, be arranged in the drawing mechanism 7 of worktable 5 both sides, be arranged on supercentral the second oil cylinder 8 of frame 1 end face, be arranged on the drift 9 of the telescopic end of the second oil cylinder 8, the blank holder 10 cooperatively interacting and die 11, pre-bending mechanism 4 is arranged on crossbeam 3 by switchover frame 12, switchover frame 12 is provided with the through hole that can allow drift 9 pass, blank holder 10 is arranged on the position of the corresponding drift 9 in switchover frame 12 bottom surfaces, when binding draw rebound test, round roller mechanism 6 is arranged on the position of corresponding drawing mechanism 7 bare terminal ends on worktable 5, when stretch bending rebound test, die 11 is arranged on the position of corresponding drift 9 on worktable 5.By add the second oil cylinder 8 with drift 9 on existing binding draw rebound test machine, and by switchover frame 12, pre-bending mechanism 4 and blank holder 10 are integrated, like this in the time doing binding draw rebound test and stretch bending rebound test, only need alternately change round roller mechanism 6 and the die 11 on worktable 5, realized the object of dual-use, floor area is little and cost is low.
Above-mentioned switchover frame 12 is arranged on the bottom center place of crossbeam 3, through hole be vertically arranged in switchover frame 12 in the heart, pre-bending mechanism 4 is fixedly mounted on the sidewall of switchover frame 12.
Above-mentioned blank holder 10 comprises two flanging piece 10a and a flanging piece backing plate 10b, and two flanging piece 10a are arranged on switchover frame 12 bottom surfaces by flanging piece backing plate 10b respectively, and the spacing between two flanging piece 10a is greater than the lateral length of round roller mechanism 6.By blank holder 10 being designed to split formula structure, avoid blank holder 10 and round roller mechanism 6 to interfere, thereby ensured in two processs of the test, all to dismantle blank holder 10, improve test efficiency.
In above-mentioned the first oil cylinder 2, the second oil cylinder 8 and drawing mechanism 7, be respectively equipped with measuring sensor 13.Measuring sensor 13 is power sensor.The quantity of the first oil cylinder 2 is 2, and 2 the first oil cylinders 2 are arranged in the second oil cylinder 8 both sides.
Above-mentioned round roller mechanism 6 comprises bearing 6a, round roller 6b, 6c and baffle plate 6d insert, the 6c that inserts is longitudinally inserted on bearing 6a, round roller 6b two ends are inserted into inserts in 6c, and baffle plate 6d one end is fixedly mounted on bearing 6a end face, and the baffle plate 6d other end is fitted on the end face of round roller 6b.Insert and between 6c bottom surface and bearing 6a, be provided with height regulating block 6e.By adding height regulating block 6e between 6c and bearing 6a inserting, can adjust according to actual needs the height of round roller 6b.Insert and be provided with compact heap 6f between 6c side and bearing 6a, the position of the upper corresponding compact heap 6f of bearing 6a side is provided with trip bolt 6g.By adding compact heap 6f between 6c and bearing 6a inserting, can adjust according to actual needs the lateral attitude of round roller 6b, simultaneously the also fastening 6c that inserts further.
This testing machine, in the time doing binding draw rebound test, only need be arranged on round roller mechanism 6 on worktable 5 and according to the state of actual condition adjustment round roller mechanism 6; Now process of the test is (referring to Fig. 3): first, the drawing mechanism 7 in left side clamps the left end of sheet material; Then, the first oil cylinder 2 moves, and drive crossbeam 3 descending, thereby drive switchover frame 12 and pre-bending mechanism 4 is descending, until pre-bending mechanism 4 makes sheet deformation; After sheet deformation, the drawing mechanism 7 on right side clamps the right-hand member of the sheet material after distortion; Meanwhile, the first oil cylinder 2 drives switchover frame 12 and pre-bending mechanism 4 to reset again; Then, after drawing mechanism 7 action movement certain displacement, complete test; Finally, unclamp respectively the sheet material that two drawing mechanisms 7 take out after test.
In the time that need do stretch bending rebound test, first round roller mechanism 6 is pulled down from worktable 5, and die 11 is arranged on worktable 5; Now experimentation is (referring to Fig. 5): first, the first oil cylinder 2 moves, drive crossbeam 3 descending, thereby drive switchover frame 12 and blank holder 10 descending, until by plate compact on die 11; Then, the second oil cylinder 8 moves, and drives drift 9 descending with certain speed, thereby makes plate stretch bending complete test; Finally, control respectively the second oil cylinder 8 and the first oil cylinder 2 resets, and take out the sheet material after bending.
The present invention by adding the second oil cylinder 8 with drift 9 on existing binding draw rebound test machine, and by switchover frame 12, pre-bending mechanism 4 and blank holder 10 are integrated, like this in the time doing binding draw rebound test and stretch bending rebound test, only need alternately change round roller mechanism 6 and the die 11 on worktable 5, realized the object of dual-use, floor area is little and cost is low; By blank holder 10 being designed to split formula structure, avoid blank holder 10 and round roller mechanism 6 to interfere, thereby ensured in two processs of the test, all to dismantle blank holder 10, improve test efficiency; By adding height regulating block 6e and compact heap 6f between 6c and bearing 6a inserting, can adjust according to actual needs the working position of round roller 6b; The simultaneously also fastening 6c that inserts further.
Claims (9)
1. a sheet material forming rebound performance testing machine, comprise frame (1), be arranged on the first oil cylinder (2) on described frame (1) end face, be slidably mounted on the crossbeam (3) that described frame (1) is upper and be connected with the telescopic end of described the first oil cylinder (2), pre-bending mechanism (4), be arranged on the worktable (5) on described frame (1) bottom surface, round roller mechanism (6), be arranged in the drawing mechanism (7) of described worktable (5) both sides, be arranged on described frame (1) supercentral the second oil cylinder of end face (8), be arranged on the drift (9) of the telescopic end of described the second oil cylinder (8), the blank holder (10) cooperatively interacting and die (11), it is characterized in that: described pre-bending mechanism (4) is arranged on described crossbeam (3) by switchover frame (12), described switchover frame (12) is provided with the through hole that can allow described drift (9) pass, described blank holder (10) is arranged on the position of the corresponding described drift in described switchover frame (12) bottom surface (9), when binding draw rebound test, described round roller mechanism (6) is arranged on the position of upper corresponding described drawing mechanism (7) bare terminal end of described worktable (5), when stretch bending rebound test, described die (11) is arranged on the position of the upper corresponding described drift (9) of described worktable (5).
2. sheet material forming rebound performance testing machine according to claim 1, it is characterized in that: described switchover frame (12) is arranged on the place of bottom center of described crossbeam (3), described through hole be vertically arranged in described switchover frame (12) in the heart, described pre-bending mechanism (4) is fixedly mounted on the sidewall of described switchover frame (12).
3. sheet material forming rebound performance testing machine according to claim 1, it is characterized in that: described blank holder (10) comprises two flanging pieces (10a) and a flanging piece backing plate (10b), described two flanging pieces (10a) are arranged on described switchover frame (12) bottom surface by described flanging piece backing plate (10b) respectively, and the spacing between described two flanging pieces (10a) is greater than the lateral length of described round roller mechanism (6).
4. sheet material forming rebound performance testing machine according to claim 1, is characterized in that: in described the first oil cylinder (2), described the second oil cylinder (8) and described drawing mechanism (7), be respectively equipped with measuring sensor (13).
5. sheet material forming rebound performance testing machine according to claim 3, is characterized in that: described measuring sensor (13) is power sensor.
6. sheet material forming rebound performance testing machine according to claim 1, is characterized in that: the quantity of described the first oil cylinder (2) is 2,2 described the first oil cylinders (2) are arranged in described the second oil cylinder (8) both sides.
7. sheet material forming rebound performance testing machine according to claim 1, it is characterized in that: described round roller mechanism (6) comprises bearing (6a), round roller (6b), inserts (6c) and baffle plate (6d), described inserting (6c) is longitudinally inserted on described bearing (6a), described in being inserted into, described round roller (6b) two ends insert in (6c), described baffle plate (6d) one end is fixedly mounted on described bearing (6a) end face, and described baffle plate (6d) other end is fitted on the end face of described round roller (6b).
8. sheet material forming rebound performance testing machine according to claim 7, is characterized in that: described in insert and between (6c) bottom surface and described bearing (6a), be provided with height regulating block (6e).
9. sheet material forming rebound performance testing machine according to claim 7, it is characterized in that: described in insert and be provided with compact heap (6f) between (6c) side and described bearing (6a), the position of the upper corresponding described compact heap (6f) of described bearing (6a) side is provided with trip bolt (6g).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258267.0A CN104062183B (en) | 2014-06-12 | 2014-06-12 | Sheet material forming rebound performance testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258267.0A CN104062183B (en) | 2014-06-12 | 2014-06-12 | Sheet material forming rebound performance testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104062183A true CN104062183A (en) | 2014-09-24 |
| CN104062183B CN104062183B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410258267.0A Active CN104062183B (en) | 2014-06-12 | 2014-06-12 | Sheet material forming rebound performance testing machine |
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| CN (1) | CN104062183B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567809A (en) * | 2019-09-15 | 2019-12-13 | 史丹 | Stress detection equipment for PTFE (Polytetrafluoroethylene) plates |
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| CN201607362U (en) * | 2010-01-14 | 2010-10-13 | 宝山钢铁股份有限公司 | Die for bending test of metal sheet |
| CN102033013A (en) * | 2009-09-28 | 2011-04-27 | 宝山钢铁股份有限公司 | Method for measuring torsional resilience characteristics of plates |
| CN201897552U (en) * | 2010-11-24 | 2011-07-13 | 浙江吉利汽车研究院有限公司 | Novel torsion rebound property experimental die for high-strength steel plate after punching and forming |
| CN102141491A (en) * | 2011-01-11 | 2011-08-03 | 重庆大学 | Universal test device of bending resilience of U-shaped and V-shaped plates |
| CN202963201U (en) * | 2012-10-31 | 2013-06-05 | 长城汽车股份有限公司 | Blank drawing die |
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2014
- 2014-06-12 CN CN201410258267.0A patent/CN104062183B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503255U (en) * | 2009-09-22 | 2010-06-09 | 宝山钢铁股份有限公司 | Torsion and resilience measuring device for stamped steel plate |
| CN102033013A (en) * | 2009-09-28 | 2011-04-27 | 宝山钢铁股份有限公司 | Method for measuring torsional resilience characteristics of plates |
| CN201548449U (en) * | 2009-10-28 | 2010-08-11 | 宝山钢铁股份有限公司 | Die for distortional springback characteristic experiment of stamped steel plate |
| CN201607362U (en) * | 2010-01-14 | 2010-10-13 | 宝山钢铁股份有限公司 | Die for bending test of metal sheet |
| CN201897552U (en) * | 2010-11-24 | 2011-07-13 | 浙江吉利汽车研究院有限公司 | Novel torsion rebound property experimental die for high-strength steel plate after punching and forming |
| CN102141491A (en) * | 2011-01-11 | 2011-08-03 | 重庆大学 | Universal test device of bending resilience of U-shaped and V-shaped plates |
| CN202963201U (en) * | 2012-10-31 | 2013-06-05 | 长城汽车股份有限公司 | Blank drawing die |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567809A (en) * | 2019-09-15 | 2019-12-13 | 史丹 | Stress detection equipment for PTFE (Polytetrafluoroethylene) plates |
| CN110567809B (en) * | 2019-09-15 | 2021-09-14 | 史丹 | Stress detection equipment for PTFE (Polytetrafluoroethylene) plates |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104062183B (en) | 2016-04-27 |
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Effective date of registration: 20170728 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 15 Wuchang, Wuhan Friendship Avenue, No. 999, block A, layer (Wuhan Iron and steel science and technology innovation department), No. 430080, Patentee before: Wuhan Iron & Steel (Group) Corp. |
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