CN107255582B - Rapid simulation experiment device for sheet stamping surface damage - Google Patents
Rapid simulation experiment device for sheet stamping surface damage Download PDFInfo
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- CN107255582B CN107255582B CN201610876374.9A CN201610876374A CN107255582B CN 107255582 B CN107255582 B CN 107255582B CN 201610876374 A CN201610876374 A CN 201610876374A CN 107255582 B CN107255582 B CN 107255582B
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- rack
- upper base
- surface damage
- lower base
- gear
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- 238000004088 simulation Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000004080 punching Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明公开了一种板料冲压表面损伤快速模拟实验装置，所述实验装置由下底座、上底座、支架、齿条、齿轮和压头组成，其中下底座与上底座固定连接，支架由支撑圆柱、从动齿轮和横板组成，从动齿轮与下底座连接，齿条上方由支架横板固定、下方与齿轮相啮合，压头为中间由弹簧连接的圆筒形结构，压头一端与齿条固定连接。本发明可快速便捷地模拟不同冲压工艺条件下的板料拉毛现象以及对拉毛缺陷的定性评价，精准度与智能性高，操作简便，极大程度地节省了人力物力。
The invention discloses a rapid simulation experimental device for sheet metal stamping surface damage. The experimental device is composed of a lower base, an upper base, a bracket, a rack, a gear and an indenter, wherein the lower base is fixedly connected with the upper base, and the bracket is supported by A cylinder, a driven gear and a horizontal plate are composed. The driven gear is connected with the lower base. The top of the rack is fixed by the bracket horizontal plate, and the bottom is meshed with the gear. The indenter is a cylindrical structure connected by a spring in the middle. The rack is fixedly connected. The present invention can quickly and conveniently simulate the phenomenon of sheet material nap under different stamping process conditions and qualitatively evaluate the nap defect, has high precision and intelligence, is easy to operate, and greatly saves manpower and material resources.
Description
Technical Field
The invention relates to the field of metal sheet stamping forming and detection, in particular to a rapid simulation experiment device for sheet stamping surface damage.
Background
With the vigorous development of the automobile industry, the requirements on automobiles are higher and higher, so that the safety performance is guaranteed, and the concept of energy conservation and environmental protection is embodied. The car is more portable, which is the simplest and most effective way to realize energy saving and environmental protection. The use of the high-strength sheet is one of important means for reducing the weight of the automobile, the high strength of the high-strength sheet improves the dent resistance, the endurance strength and the large deformation impact strength of the automobile, the safety performance is ensured, and the weight of the automobile can be effectively reduced so as to achieve the aim of low oil consumption. Before the sheet material is manufactured, the impact of stamping on the sheet material can be effectively avoided by testing the stamping surface damage of the sheet material, and the unnecessary loss generated in the production process is reduced.
In the process of sheet metal stamping and forming, when a sheet metal is in a sliding motion state, adhesion abrasion may occur due to forced contact between the sheet metal and a die, and at this time, the surface of a formed part is seriously damaged, which is called surface damage, commonly called galling defect, and galling is usually accompanied with sheet metal transfer or plastic flow. However, the contact pressure between the die and the sheet, the deformation mode and the stress-strain state of the sheet are constantly changed, and the contact condition between the die and the sheet is constantly deteriorated, such as the contact temperature is increased, the friction coefficient is increased, and the like, so that the induction factors of the surface damage phenomenon are numerous.
A method for simulating the surface galling defect of an automobile sheet material, Linzhouchi and the like (patent publication No. CN 1818606A), adopts drawing of box-shaped parts with unequal fillet radii to simulate the surface damage phenomenon in the sheet material stamping process, and has the advantages of complex mold structure, high manufacturing cost and large tonnage press for stamping deformation; in addition, the surface damage phenomenon in the stamping process is the accumulated result of mutual sliding friction between the die and the plate, so that the patent technology needs to consume a large amount of plates for carrying out a box-shaped part stamping experiment, needs a large amount of time and manpower, causes great waste of manpower and material resources, and causes difficulty in evaluation due to dispersed galling defects.
Disclosure of Invention
The invention aims to provide a rapid simulation experiment device for the stamping surface damage of sheet materials, aiming at the defects in the prior art.
The technical scheme of the invention is as follows: the utility model provides a sheet material punching press surface damage rapid simulation experimental apparatus which characterized in that: the experimental device consists of a lower base, an upper base, a bracket, a rack, a gear and a pressure head, wherein the lower base is fixedly connected with the upper base; the upper base is of an inverted concave structure, and a round hole is formed in the upper base; the support is composed of a support cylinder, a driven gear and a transverse plate, one end of the support cylinder is connected with the driven gear, the other end of the support cylinder is connected with the transverse plate, the driven gear is connected with the lower base, and the support cylinder penetrates through the round hole of the upper base; the rack top is fixed by the support diaphragm, the below meshes with the gear mutually, the gear is two, sets up respectively in the diaphragm both sides, the pressure head is the cylinder structure by spring coupling in the middle, pressure head one end with rack fixed connection.
Optimizing; the lower base is fixedly connected with the upper base through bolts.
Optimizing; the lower base is provided with a groove, a motor I is arranged in the groove, a driving gear is arranged above the groove, the driving gear is driven by the motor I, and the driving gear is meshed with a driven gear.
Optimizing; the two sides of the transverse plate of the support are provided with convex parts, motors II are arranged in the convex parts, the convex parts correspond to the gears respectively, and the gears are driven by the motors II arranged on the convex parts of the transverse plate respectively.
Optimizing; the lower base is provided with a fixed cylinder, a hole groove matched with the fixed cylinder is formed in the center of one end of the driven gear of the support, and the fixed cylinder is inserted into the hole groove and movably connected with the support.
Optimizing; the plate fixing device is characterized in that vertical plates are arranged on two sides of the upper base respectively, a screw hole and a nut are arranged in the center of each vertical plate, a plate fixing plate is arranged on the inner side of each vertical plate, a blind hole is formed in the center of each plate fixing plate, and the nut penetrates through the screw hole and is inserted into the blind hole.
Optimizing; the upper surface of the upper base is provided with scales.
Optimizing; the nut hole is formed in the rack, a nut head is arranged at one end, connected with the rack, of the pressure head, and the nut head is connected with the nut hole.
The invention has the advantages that: the experimental device provided by the invention can quickly and conveniently simulate the surface damage phenomenon in the sheet stamping forming process and the qualitative evaluation of galling defects, has high precision and intelligence, is simple and convenient to operate, and greatly saves manpower and material resources.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a front view of the bracket;
FIG. 5 is a right side view of the stand;
FIG. 6 is a top view of the upper base;
FIG. 7 is a front view of the lower base;
FIG. 8 is a front cross-sectional view of the sub-mount;
FIG. 9 is a top view of the sub-base;
FIG. 10 is a front view of a plate fixing plate;
FIG. 11 is a right sectional view of the plate fixing plate;
fig. 12 is an enlarged view of a in fig. 11.
Detailed Description
The invention is further illustrated by the following specific examples.
Example (b):
as shown in fig. 1 to 12, a rapid simulation experiment device for damage to a stamping surface of a sheet material comprises a lower base 1, an upper base 2, a support 3, a rack 4, a gear 5 and a pressure head 6, wherein the lower base 1 is made of a steel material, the upper base 2 is made of an aluminum alloy material, the support 3 is made of a gray cast iron material, the rack 4 is made of an aluminum alloy material, the pressure head 6 is made of an aluminum material, the lower base 1 and the upper base 2 are fixedly connected through a bolt 11, a groove 12 and a fixed cylinder 13 are arranged on the lower base 1, a motor i is arranged in the groove 12, a driving gear 14 is arranged above the groove 12, and the driving gear 14 is driven by the motor i; the upper base 2 is of an inverted concave structure, a round hole 21 is formed in the upper base 2, vertical plates 22 are arranged on two sides of the upper base respectively, a screw hole and a nut 24 are formed in the center of each vertical plate 22, a plate fixing plate 23 is arranged on the inner side of each vertical plate 22, a blind hole 25 is formed in the center of each plate fixing plate 23, the nut 24 penetrates through the screw hole and is inserted into the blind hole 25, and scales are marked on the upper surface of the upper base; the support 3 is composed of a support cylinder 33, a driven gear 34 and a transverse plate 35, one end of the support cylinder 33 is connected with the driven gear 34, the other end of the support cylinder is connected with the transverse plate 35, a hole groove matched with the fixed cylinder 13 is formed in the center of one end of the driven gear 34, the fixed cylinder 13 is inserted into the hole groove and is movably connected with the support 3, the driving gear 14 is meshed with the driven gear 34, convex parts 36 are arranged on two sides of the transverse plate 35, a motor II is arranged in each convex part 36, and the support cylinder 33 penetrates through the round hole 21; the upper part of the rack 4 is fixed by a transverse plate 35, the lower part of the rack 4 is meshed with a gear 5, two gear 5 are arranged on the rack 4 and are respectively arranged on two sides of the transverse plate 35 and correspond to the convex part 36, and the gear 5 is respectively driven by a motor II arranged on the convex part 36; the pressure head 6 is a cylindrical structure with the middle connected by a spring 61, a nut head 62 is arranged at one end of the pressure head 6, and the nut head 62 is connected with the nut hole.
During the experiment, the test plate is placed on the upper base, the plate fixing plate 23 is pushed in or retracted by screwing or unscrewing the nut 24 so as to fix the test plate, and the plate fixing plate 23 is fixed at the center of the upper base according to the scale on the upper surface of the upper base. The motor I in the groove 12 of the lower base 1 is started to drive the driving gear 14 to rotate, the support 3 is driven to rotate through the transmission of the driving gear 14 and the driven gear 34, so that the pressure head 7 is driven to do circular motion on the test plate, and meanwhile, the motor II of the convex part 36 of the transverse plate 35 is started to drive the gear 5 to rotate, so that the pressure head 7 is driven to do linear motion on the test plate. The middle of the pressure head 7 is connected by the spring, the elastic coefficient of the spring is fixed, the pressure of the pressure head 7 on the test plate enables the spring to compress, so that the expansion amount of the spring is obtained, the force generated by the spring is obtained according to the elastic coefficient of the spring, and the effect of controlling the pressure head on the surface pressure of the test plate is achieved. The motor I and the motor II are both positive and negative rotating motors, and can generate various different scratch patterns on a test plate by combining different rotating speeds, so that the influence of different stamping process conditions on the surface quality of the plate can be simulated by the different scratch patterns left on the test plate by the pressure heads 7 under different pressures and different rotating speeds, and the qualitative evaluation of the surface damage can be carried out according to the severity of scratches.
Claims (5)
1. The utility model provides a sheet material punching press surface damage rapid simulation experimental apparatus which characterized in that: the experimental device consists of a lower base, an upper base, a bracket, a rack, a gear and a pressure head, wherein the lower base is fixedly connected with the upper base; the upper base is of an inverted concave structure, and a round hole is formed in the upper base; the support is composed of a support cylinder, a driven gear and a transverse plate, one end of the support cylinder is connected with the driven gear, the other end of the support cylinder is connected with the transverse plate, the driven gear is connected with the lower base, and the support cylinder penetrates through the round hole of the upper base; the upper part of the rack is fixed by a transverse plate of the bracket, the lower part of the rack is meshed with two gears which are respectively arranged at two sides of the transverse plate, the middle of the pressure head is of a cylindrical structure connected by a spring, and one end of the pressure head is fixedly connected with the rack; the lower base is provided with a groove, a motor I is arranged in the groove, a driving gear is arranged above the groove, the driving gear is driven by the motor I, and the driving gear is meshed with a driven gear; the two sides of the transverse plate of the support are provided with convex parts, motors II are arranged in the convex parts, the convex parts correspond to the gears respectively, and the gears are driven by the motors II arranged on the convex parts of the transverse plate respectively.
2. The rapid simulation experiment device for sheet stamping surface damage according to claim 1, wherein: the lower base is fixedly connected with the upper base through bolts.
3. The rapid simulation experiment device for the surface damage of the sheet stamping according to claim 1 or 2, wherein: the lower base is provided with a fixed cylinder, the center of one end of the driven gear is provided with a hole groove matched with the fixed cylinder, and the fixed cylinder is inserted into the hole groove and is movably connected with the support.
4. The rapid simulation experiment device for sheet stamping surface damage according to claim 1, wherein: the upper surface of the upper base is provided with scales.
5. The rapid simulation experiment device for sheet stamping surface damage according to claim 1, wherein: the nut hole is formed in the rack, a nut head is arranged at one end, connected with the rack, of the pressure head, and the nut head is connected with the nut hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876374.9A CN107255582B (en) | 2016-10-08 | 2016-10-08 | Rapid simulation experiment device for sheet stamping surface damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876374.9A CN107255582B (en) | 2016-10-08 | 2016-10-08 | Rapid simulation experiment device for sheet stamping surface damage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255582A CN107255582A (en) | 2017-10-17 |
| CN107255582B true CN107255582B (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610876374.9A Expired - Fee Related CN107255582B (en) | 2016-10-08 | 2016-10-08 | Rapid simulation experiment device for sheet stamping surface damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255582B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818606A (en) * | 2006-01-12 | 2006-08-16 | 上海交通大学 | Method for simulating defection of surface coarsing of automotive plates |
| CN2907943Y (en) * | 2006-05-26 | 2007-06-06 | 宝山钢铁股份有限公司 | Plate material rough quantity measuring device for automobile body |
| CN101266201A (en) * | 2008-04-21 | 2008-09-17 | 上海大学 | Thin metal strip friction coupling deformation test device |
| CN102323167A (en) * | 2011-08-16 | 2012-01-18 | 上海交通大学 | Sheet stamping surface damage test apparatus for realizing a plurality of deformation states |
| CN203117062U (en) * | 2013-01-16 | 2013-08-07 | 南京理工大学 | Multi-station multi-direction movement abrasion tester |
| CN103278412A (en) * | 2013-05-23 | 2013-09-04 | 浙江工业大学 | Low-load friction-wear test device |
| CN103822837A (en) * | 2014-02-07 | 2014-05-28 | 河南科技大学 | Friction testing machine |
| CN103913392A (en) * | 2014-04-04 | 2014-07-09 | 浙江大学 | Multifunctional wear test device for material wear analysis |
| CN104089840A (en) * | 2014-06-10 | 2014-10-08 | 华晨汽车集团控股有限公司 | Testing device for friction wear property of automobile stamping die material |
| CN105115843A (en) * | 2015-09-18 | 2015-12-02 | 四川出入境检验检疫局检验检疫技术中心 | Simulation test device for surface friction resistance of braided fabric |
| CN105987853A (en) * | 2015-01-30 | 2016-10-05 | 宝山钢铁股份有限公司 | Testing method and apparatus for block-on-ring friction and wear performance of roller |
-
2016
- 2016-10-08 CN CN201610876374.9A patent/CN107255582B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818606A (en) * | 2006-01-12 | 2006-08-16 | 上海交通大学 | Method for simulating defection of surface coarsing of automotive plates |
| CN2907943Y (en) * | 2006-05-26 | 2007-06-06 | 宝山钢铁股份有限公司 | Plate material rough quantity measuring device for automobile body |
| CN101266201A (en) * | 2008-04-21 | 2008-09-17 | 上海大学 | Thin metal strip friction coupling deformation test device |
| CN102323167A (en) * | 2011-08-16 | 2012-01-18 | 上海交通大学 | Sheet stamping surface damage test apparatus for realizing a plurality of deformation states |
| CN203117062U (en) * | 2013-01-16 | 2013-08-07 | 南京理工大学 | Multi-station multi-direction movement abrasion tester |
| CN103278412A (en) * | 2013-05-23 | 2013-09-04 | 浙江工业大学 | Low-load friction-wear test device |
| CN103822837A (en) * | 2014-02-07 | 2014-05-28 | 河南科技大学 | Friction testing machine |
| CN103913392A (en) * | 2014-04-04 | 2014-07-09 | 浙江大学 | Multifunctional wear test device for material wear analysis |
| CN104089840A (en) * | 2014-06-10 | 2014-10-08 | 华晨汽车集团控股有限公司 | Testing device for friction wear property of automobile stamping die material |
| CN105987853A (en) * | 2015-01-30 | 2016-10-05 | 宝山钢铁股份有限公司 | Testing method and apparatus for block-on-ring friction and wear performance of roller |
| CN105115843A (en) * | 2015-09-18 | 2015-12-02 | 四川出入境检验检疫局检验检疫技术中心 | Simulation test device for surface friction resistance of braided fabric |
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| CN107255582A (en) | 2017-10-17 |
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