CN103674687A - Automatic sample centering device for drop-weight tear test - Google Patents

Automatic sample centering device for drop-weight tear test Download PDF

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Publication number
CN103674687A
CN103674687A CN201310613694.1A CN201310613694A CN103674687A CN 103674687 A CN103674687 A CN 103674687A CN 201310613694 A CN201310613694 A CN 201310613694A CN 103674687 A CN103674687 A CN 103674687A
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China
Prior art keywords
sample
centering
plate
drop
test
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CN201310613694.1A
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CN103674687B (en
Inventor
蔡青松
陈勃
姜财
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Shanghai Hualong Test Instruments Co ltd
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SHANGHAI HUALONG TEST INSTRUMENTS CO Ltd
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Abstract

The invention relates to an automatic sample centering device for a drop-weight tear test. The device comprises a testing machine body (A), wherein a sample support (4) and anvil beds (3 and 3') are installed on the testing machine body, and the anvil beds are installed on two sides of the sample support symmetrically; a magnetic backup plate (1) and a centering plate (5) are installed on inner sides of the two anvil beds respectively, and bottoms of the magnetic backup plate and the centering plate are located on the sample support; a through hole (11) is formed in the anvil bed close to the centering plate; one end of the centering plate is fixedly connected with a horizontal push-and-pull shaft (7) which penetrates through the through hole; the other end of the push-and-pull shaft is fixedly connected with a centering cylinder (8) fixedly mounted on the outer side of the anvil bed. According to the automatic sample centering device, no human is involved in the test, and the drop-weight tear test can be finished in 10 s, so that the accuracy of a test result is guaranteed. According to the automatic sample centering device, the magnetic backup plate is arranged, and a sample is driven by the centering cylinder to be adsorbed by the magnetic backup plate, so that the sample is not toppled in the test, and the test can be finished successfully.

Description

A kind of sample automatic centering device for Drop-Weight Tear Test (DWTT)
Technical field
The present invention relates to a kind of sample automatic centering device, refer in particular to, while carrying out Drop-Weight Tear Test (DWTT), on the sample bearing of macro-energy impact testing machine, place after the sample that thickness is 3~40mm, sample is carried out to the device of centering.
Background technology
Drop-Weight Tear Test (DWTT) is the pilot project for the tough crisp characteristic of exosyndrome material, is mainly used in the black brittleness research of metal material.GB/T8363-2007 < < ferritic steel Drop-Weight Tear Test (DWTT) method > > regulation sample takes out on the sample bearing that packs testing machine into and interrupts rapidly from attemperator, and this process will complete in 10 seconds.At present, semi-artificial, the semi-automatic method of many employings that completes of test realizes, and takes out sample be put into conveyor by operating personnel, then by conveyor, sends into testing machine.Because artifact impact, makes whole process of the test be difficult to guarantee completed, even if test is to complete to be also difficult to judgement, test findings is produced to certain impact in 10 seconds in 10 seconds.In addition, the problem that existing automatic sample conveying device cannot solve sample centering and easily outwell at the process sample of interrupting, therefore causes testing frequent failure.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of sample automatic centering device for Drop-Weight Tear Test (DWTT), realizes sample automatic centering and guarantee that sample does not fall in process of the test, and test can be completed smoothly.
The technical scheme that the present invention addresses the above problem is as follows:
A sample automatic centering device for Drop-Weight Tear Test (DWTT), comprises testing machine body, and sample bearing and the symmetrical anvil block that is arranged on sample bearing both sides are installed on described testing machine body, it is characterized in that:
The inner side of described two anvil blocks is installed respectively bottom and is positioned at magnetic backup plate and the centering plate on sample bearing, on described anvil block, offer through hole, the affixed horizontal push-pull shaft in one end of described centering plate, described push-pull shaft is through through hole, and the other end of push-pull shaft is fixedly connected with the centering cylinder that is packed in anvil block outside.
Further, on described anvil block, milled screw is installed, described milled screw penetrates from outside to inside anvil block and is connected with magnetic backup plate.By rotation milled screw, adjust the position of magnetic backup plate, realize the adjustment to sample position on sample bearing.
As further improvement, between described centering plate and horizontal push-pull shaft, by latch, be connected.
Further, the gradient plate that is positioned at sample bearing below is installed on described testing machine body.Sample is pounded to have no progeny skids off machine center along gradient plate.
Further again, in order to prevent from damaging after process of the test sample fracture operating personnel, on described testing machine body, protective cover is installed.
The course of work of the present invention is, automatic sample conveying device is delivered to sample on sample bearing, the action of centering cylinder, push-pull shaft promotes centering plate and moves on bearing, and centering plate is shifted sample on magnetic backup plate onto, and the magnet on magnetic backup plate holds sample, then centering cylinder action, push-pull shaft retracts centering plate, and while preventing impact specimen, impulsive force is delivered to centering cylinder, and centering cylinder is damaged.Then hammer body discharges, and falling bodies destroy sample automatically, and whole process completed in 10 seconds, after sample fracture, along gradient plate, skidded off machine center.
Compared with prior art, beneficial effect of the present invention is:
1, sample automatic centering device of the present invention no longer needs artificial participation in process of the test, can guarantee that Drop-Weight Tear Test (DWTT) completed in 10 seconds, had guaranteed the accuracy of test findings.
2, the present invention is provided with magnetic backup plate, when centering cylinder, sample is shifted onto on magnetic backup plate, and sample is adsorbed on magnetic backup plate, has guaranteed that sample can not topple in test, guarantees that test completing smoothly.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Fig. 2 is the vertical view of Fig. 1.
In figure: 1, magnetic backup plate; 2, milled screw; 3,3 ' anvil block; 4, sample bearing; 5, centering plate; 6, latch; 7, push-pull shaft; 8, centering cylinder; 9, gradient plate; 10, protective cover; 11, through hole; A, testing machine body
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Shown in Fig. 1 and Fig. 2, a kind of sample automatic centering device for Drop-Weight Tear Test (DWTT), comprise testing machine body A, sample bearing 4 and the symmetrical anvil block 3,3 ' that is arranged on sample bearing arranged on left and right sides are installed on described testing machine body, wherein the installation of the anvil block 3 in left side bottom is positioned at the magnetic backup plate 1 on sample bearing, as preferably, milled screw 2 is installed on described anvil block, described milled screw penetrates from outside to inside anvil block and is connected with magnetic backup plate.By rotation milled screw, adjust the position of magnetic backup plate, realize the adjustment to sample position on sample bearing.Centering plate 5 is installed in another one anvil block 3 ' inner side, shown in the bottom of centering plate be positioned on sample bearing, on described anvil block 3 ', offer through hole 11, the affixed horizontal push-pull shaft 7 in one end of described centering plate, described push-pull shaft is through through hole 11, and the other end of push-pull shaft is fixedly connected with the centering cylinder 8 that is packed in anvil block outside.When centering cylinder moves, push-pull shaft is released centering plate or retract.
Between described centering plate and horizontal push-pull shaft, preferably by latch 6, be connected.
The gradient plate 9 that is positioned at sample bearing below is installed on described testing machine body A.In order to prevent from damaging after process of the test sample fracture operating personnel, on described testing machine body, protective cover 10 is installed.
As shown in Figure 2, two covers sample automatic centering device of the present invention can be installed on testing machine body.
The course of work of the present invention is, automatic sample conveying device is delivered to sample on sample bearing, the action of centering cylinder, push-pull shaft promotes centering plate and moves on bearing, and centering plate is shifted sample on magnetic backup plate onto, and the magnet on magnetic backup plate holds sample, then centering cylinder action, push-pull shaft retracts centering plate, and while preventing impact specimen, impulsive force is delivered to centering cylinder, and centering cylinder is damaged.Then hammer body discharges, and falling bodies destroy sample automatically, and whole process completed in 10 seconds, after sample fracture, along gradient plate, skidded off machine center.

Claims (5)

1. for a sample automatic centering device for Drop-Weight Tear Test (DWTT), comprise testing machine body (A), sample bearing (4) and the symmetrical anvil block (3,3 ') that is arranged on sample bearing both sides be installed on described testing machine body, it is characterized in that:
The inner side of described two anvil blocks (3,3 ') is installed respectively bottom and is positioned at magnetic backup plate (1) and the centering plate (5) on sample bearing, on described anvil block (3 '), offer through hole (11), the affixed horizontal push-pull shaft in one end (7) of described centering plate, described push-pull shaft is through through hole, and the other end of push-pull shaft is fixedly connected with the centering cylinder (8) that is packed in anvil block outside.
2. the sample automatic centering device for Drop-Weight Tear Test (DWTT) according to claim 1, is characterized in that:
Milled screw (2) is installed on described anvil block, and described milled screw penetrates from outside to inside anvil block and is connected with magnetic backup plate.
3. the sample automatic centering device for Drop-Weight Tear Test (DWTT) according to claim 1, is characterized in that:
Between described centering plate and horizontal push-pull shaft, by latch (6), be connected.
4. the sample automatic centering device for Drop-Weight Tear Test (DWTT) according to claim 1, is characterized in that:
The gradient plate (9) that is positioned at sample bearing below is installed on described testing machine body (A).
5. the sample automatic centering device for Drop-Weight Tear Test (DWTT) according to claim 1, is characterized in that:
Protective cover (10) is installed on described testing machine body.
CN201310613694.1A 2013-11-27 2013-11-27 A kind of sample automatic centering device in DWTT Active CN103674687B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310613694.1A CN103674687B (en) 2013-11-27 2013-11-27 A kind of sample automatic centering device in DWTT

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Application Number Priority Date Filing Date Title
CN201310613694.1A CN103674687B (en) 2013-11-27 2013-11-27 A kind of sample automatic centering device in DWTT

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CN103674687A true CN103674687A (en) 2014-03-26
CN103674687B CN103674687B (en) 2016-09-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112857966A (en) * 2021-01-15 2021-05-28 山东钢铁集团日照有限公司 Automatic centering and testing method for secondary processing embrittlement sample

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231248A (en) * 1979-06-15 1980-11-04 The United States Of America As Represented By The Secretary Of The Air Force Laser tensile test sample holder
EP0489182A1 (en) * 1990-12-03 1992-06-10 Carl Schenck Ag Clamping device exerting no bending moment for use in a testing machine
CN101158615A (en) * 2007-11-20 2008-04-09 上海华龙测试仪器有限公司 Pendulum impact machine low-temperature automatic material feeding centring device and method thereof
CN101387591A (en) * 2007-09-12 2009-03-18 威海市试验机制造有限公司 Overturn feed mechanism of drop hammer type impact tester
CN101598526A (en) * 2008-06-03 2009-12-09 上海华龙测试仪器有限公司 A kind of sample for testing machine automatic centring device
CN102003940A (en) * 2009-08-28 2011-04-06 上海华龙测试仪器有限公司 Sample automatic centering size measurement device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231248A (en) * 1979-06-15 1980-11-04 The United States Of America As Represented By The Secretary Of The Air Force Laser tensile test sample holder
EP0489182A1 (en) * 1990-12-03 1992-06-10 Carl Schenck Ag Clamping device exerting no bending moment for use in a testing machine
CN101387591A (en) * 2007-09-12 2009-03-18 威海市试验机制造有限公司 Overturn feed mechanism of drop hammer type impact tester
CN101158615A (en) * 2007-11-20 2008-04-09 上海华龙测试仪器有限公司 Pendulum impact machine low-temperature automatic material feeding centring device and method thereof
CN101598526A (en) * 2008-06-03 2009-12-09 上海华龙测试仪器有限公司 A kind of sample for testing machine automatic centring device
CN102003940A (en) * 2009-08-28 2011-04-06 上海华龙测试仪器有限公司 Sample automatic centering size measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112857966A (en) * 2021-01-15 2021-05-28 山东钢铁集团日照有限公司 Automatic centering and testing method for secondary processing embrittlement sample

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Address after: No. 389, Sichuan Honglu, Pudong New Area, Shanghai

Patentee after: Shanghai Hualong Test Instruments Co.,Ltd.

Address before: No. 389, Sichuan Honglu, Pudong New Area, Shanghai

Patentee before: SHANGHAI HUALONG TEST INSTRUMENTS Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: An automatic specimen alignment device for drop hammer tear testing

Granted publication date: 20160921

Pledgee: Industrial Bank Co.,Ltd. Shanghai South thebund sub branch

Pledgor: Shanghai Hualong Test Instruments Co.,Ltd.

Registration number: Y2024310000217