CN103398907B - A kind of guided bend device for material properties test - Google Patents
A kind of guided bend device for material properties test Download PDFInfo
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- CN103398907B CN103398907B CN201310320173.7A CN201310320173A CN103398907B CN 103398907 B CN103398907 B CN 103398907B CN 201310320173 A CN201310320173 A CN 201310320173A CN 103398907 B CN103398907 B CN 103398907B
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Abstract
The invention belongs to material mechanical performance field tests, relate to a kind of guided bend device for material properties test, comprise base (9), main truss (10), guide rod (1), three groups of gear sets for transmitting force and force application rod (5); Three groups of gears are respectively canine tooth wheels (2), middle mesomerism gear group (3) and the pinion wheel group (4) playing conduction, often organize gear and include the in-line gears that two are placed in main truss (10) both sides of guided bend mechanism, three gears being positioned at homonymy engage each other successively; Between two in-line gears forming canine tooth wheels (2), be fixed with connecting rod (8), connecting rod (8) is fixedly connected with the guide rod (1) for transmitting the external force making sample bend; Force application rod (5) is fixed with between two in-line gears of pinion wheel; A continuous print groove (6) is offered, for placing by curved sample in the centre of main truss (10).It is simple, easy to adjust that the present invention has structure, with the advantage of existing testing machine no-float.
Description
Art
The invention belongs to material mechanical performance field tests, specifically, relate to a kind of test unit of material bending performance test.
Background technology
Compared with other material joining methods, welding not only can reduce labor intensity, and can also simplify structure, saves man-hour, improve work efficiency.Therefore, solder technology plays very important effect in manufacturing industry.Welding technology is the important measures ensureing welding quality, and it can confirm as correctness and the rationality of the welding technology guiding book of various welding joint establishment.By qualification of welding procedure, the usability of the welding joint be welded by the welding technology guiding book worked out is checked whether to meet designing requirement, and for formally formulating welding technology guiding book or welding procedure sheet provides reliable foundation.
Bending test is the test of the mechanical characteristic measured when material bears bending load, can be used to the surface quality checking material.The object of the bending test of welding joint has two: one to be the plastic deformation ability evaluating welding joint, namely measures mechanical property; Two is disclose internal defect of joint, namely evaluates the shop characteristic of welding joint and the operative skill of welder.Bending test is generally carried out on universal material machine, has three-point bending and four-point bending two kinds to add load manner.But, for aluminium alloy and welding dissimilar materials joint, when the yield strength of its weld metal or side mother metal or Proof strength of non-proportional are lower than (opposite side) mother metal, relevant criterion all specifies to replace 3 curved tests with guided bend test, one end by sample is firmly clamped in the test unit of two parallel rollers, tests.Rotated by the circular arc centered by roller axis within outer roller edge, to sample imposed load, sample is bent gradually continuously.But the existing testing equipment overwhelming majority only can carry out 3 curved or 4 curved tests, and can not carry out guided bend test.So, develop a kind of structure simple, easy to adjust, can meet and coordinate the device that can realize guided bend function to have important practical significance with existing testing machine.
Summary of the invention
The object of the invention is to the deficiency can not carrying out guided bend test overcoming existing equipment, for aluminium alloy and welding dissimilar materials joint, develop a kind of structure simple, easy to adjust, can with the test guided bend device of existing testing machine no-float.Technical purpose of the present invention is achieved by following technical proposals:
For a guided bend device for material properties test, comprise base (9), the main truss (10) be fixed on base (9), guide rod (1), three gear sets for transmitting force and force application rod (5); Three gear sets are respectively canine tooth wheels (2), middle mesomerism gear group (3) and the pinion wheel group (4) playing conduction, each gear set includes the in-line gears that two are placed in main truss (10) both sides of guided bend mechanism, and three gears being positioned at homonymy engage each other successively; Connecting rod (8) is fixed with between two in-line gears forming canine tooth wheels (2), connecting rod (8) is fixedly connected with the guide rod (1) for transmitting the external force making sample bend, guide rod (1) move up and down by connecting rod (8) drive canine tooth wheels (2) rotate; Force application rod (5) is fixed with between two in-line gears of pinion wheel; A continuous print groove (6) is offered, for placing by curved sample in the centre of main truss (10); One end of sample is fixed on the side of groove (6) by pin (7), the other end is free end.Force application rod (5) rotates with the rotation of pinion wheel group (4), after turning to the position contacted with the free end of sample, to sample imposed load, sample is bent.
Preferably, described guided bend device, at the other rolling disc be fixed with respectively with the rotation of pinion wheel group of two in-line gears of pinion wheel group, the two ends of force application rod (5) are separately fixed on two rolling discs.
Guided bend device of the present invention, coordinate with existing testing machine, the test of guided bend performance of aluminium alloy, different-metal material welding joint can be realized under the prerequisite without the need to transforming existing equipment, structure is simple, be easy to regulate, expand the usable range of traditional experiment machine.
Accompanying drawing explanation
The front view of Fig. 1 guided bend device.
The left view of Fig. 2 guided bend device.
The stereographic map of Fig. 3 guided bend device.
Wherein:
1. guide rod 2. canine tooth wheels
3. mesomerism gear group 4. pinion wheel group
5. force application rod 6. groove
7. pin 8. connecting rod
9. base 10. main truss
11. rolling discs
Embodiment
Technical scheme of the present invention is further described below in conjunction with embodiment and accompanying drawing.
As shown in Figures 1 to 3, guided bend device of the present invention mainly include base 9, the main truss 10 be fixed on base 9, guide rod 1, three groups of gear sets for transmitting force and force application rod 5.Be connected with existing cupping machine when guide rod 1 uses, for transmitting the external force making sample bend.Often organize gear and comprise two in-line gears, three groups of gears are respectively canine tooth wheels 2, middle mesomerism gear group 3 and the pinion wheel group 4 playing conduction, the connecting rod 8 being parallel to axle is fixed with between two in-line gears forming canine tooth wheels 2, connecting rod 8 is fixedly connected with guide rod 1, drives canine tooth wheels 2 to rotate during guide rod 1 moves up and down by connecting rod 8.Two in-line gears of pinion wheel are separately installed with the rolling disc 11 that to be connected to obtain with pinion wheel, and force application rod 5 is connected in pinion wheel group 4 by rolling disc 11.All gear sets are installed on the main truss 10 of guided bend mechanism.A continuous print groove 6 is had, for placing by curved sample in main truss 10 centre of mesomerism gear group 3 and pinion wheel group 4 side.One end of sample is fixed on the side of groove 6 by pin 7, the other end is free end.Force application rod 5 and pinion wheel group 4 are fixed together, and rotate, after turning to the position contacted with the other end of sample, to sample imposed load, sample is bent with the rotation of pinion wheel group 4.
The course of work of bending mechanism of the present invention is as follows: first force application rod 5 is placed on bottom, sample is fixed in groove 6 by pin 7, cupping machine switch is opened after work to be prepared completes, cupping machine is operated, as Fig. 1, the guide rod 1 be connected with cupping machine operates downwards, guide rod 1 drives canine tooth wheels 2 to rotate counterclockwise by connecting rod 8, canine tooth wheels rotating band is moved mesomerism gear group 3 and is rotated clockwise, pinion wheel group 4 rotates counterclockwise, therefore the force application rod 5 be fixed together by rolling disc 11 with pinion wheel group 4 is same to be rotated counterclockwise, namely above being moved to by the bottom of preparatory stage, by in the process above moving to below, force application rod 5 does not contact sample by, to contact sample, arrive again and drive sample slowly to bend to sample imposed load, overlap until the free end of sample is bent to groove 6, the bending test of sample terminates.From this example, the present invention can be widely used in the test of guided bend performance of aluminium alloy, different-metal material welding joint, simple to operate, practical.
Claims (2)
1., for a guided bend device for material properties test, comprise base (9), the main truss (10) be fixed on base (9), guide rod (1), three gear sets for transmitting force and force application rod (5); Three gear sets are respectively canine tooth wheels (2), middle mesomerism gear group (3) and the pinion wheel group (4) playing conduction, each gear set includes the in-line gears that two are placed in main truss (10) both sides of guided bend mechanism, and three gears being positioned at homonymy engage each other successively; Connecting rod (8) is fixed with between two in-line gears forming canine tooth wheels (2), connecting rod (8) is fixedly connected with the guide rod (1) for transmitting the external force making sample bend, guide rod (1) move up and down by connecting rod (8) drive canine tooth wheels (2) rotate; Force application rod (5) is fixed with between two in-line gears of pinion wheel; A continuous print groove (6) is offered, for placing by curved sample in the centre of main truss (10); One end of sample is fixed on the side of groove (6) by pin (7), the other end is free end; Force application rod (5) rotates with the rotation of pinion wheel group (4), after turning to the position contacted with the free end of sample, to sample imposed load, sample is bent.
2. guided bend device according to claim 1, is characterized in that, at the other rolling disc be fixed with respectively with the rotation of pinion wheel group of two in-line gears of pinion wheel group, the two ends of force application rod (5) are separately fixed on two rolling discs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320173.7A CN103398907B (en) | 2013-07-25 | 2013-07-25 | A kind of guided bend device for material properties test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320173.7A CN103398907B (en) | 2013-07-25 | 2013-07-25 | A kind of guided bend device for material properties test |
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| Publication Number | Publication Date |
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| CN103398907A CN103398907A (en) | 2013-11-20 |
| CN103398907B true CN103398907B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310320173.7A Active CN103398907B (en) | 2013-07-25 | 2013-07-25 | A kind of guided bend device for material properties test |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568604B (en) * | 2014-12-24 | 2017-06-06 | 北京工业大学 | A kind of four-point method device for applying the dynamic homogeneous state of stress to film sample |
| CN105203405B (en) * | 2015-10-29 | 2018-07-24 | 江苏利柏特股份有限公司 | A kind of dissimilar steel welding technology evaluation bend test device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1587403A1 (en) * | 1988-09-12 | 1990-08-23 | Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела | Installation for fatigue tests of samples of materials |
| SU1589119A1 (en) * | 1988-10-04 | 1990-08-30 | Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела | Installation for testing specimens for bending |
| CN2508873Y (en) * | 2001-11-05 | 2002-09-04 | 蒋家善 | Multifunction automatic reinforced bar bending forming machine |
| CN2900008Y (en) * | 2006-04-19 | 2007-05-16 | 颖霖机械工业股份有限公司 | Driver of pipe bender head of pipe bender |
| KR100956555B1 (en) * | 2008-05-02 | 2010-05-07 | 연세대학교 산학협력단 | Tensile strength test apparatus for thin film formed on flexible substrate |
| CN201548463U (en) * | 2009-11-03 | 2010-08-11 | 武汉钢铁(集团)公司 | Circular steel product cold bent test apparatus |
| CN103207119A (en) * | 2013-04-25 | 2013-07-17 | 江苏中核利柏特股份有限公司 | Test device for evaluating bent test sample by special steel welding technology |
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2013
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