CN105258992A - Machining method of tensile specimen - Google Patents
Machining method of tensile specimen Download PDFInfo
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- CN105258992A CN105258992A CN201510671408.6A CN201510671408A CN105258992A CN 105258992 A CN105258992 A CN 105258992A CN 201510671408 A CN201510671408 A CN 201510671408A CN 105258992 A CN105258992 A CN 105258992A
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Abstract
The invention discloses a machining method of a tensile specimen. The machining method comprises steps as follows: a workblank of the tensile specimen is clamped by a clamping device and is machined into a cylindrical tensile specimen; a first end of the tensile specimen is clamped by the clamping device, and a section of external threads is machined at a second end of the tensile specimen; the middle of the tensile specimen is clamped by the clamping device, and a section of external threads is machined at the first end of the tensile specimen; a thread sleeve matched with the external threads of the tensile specimen is machined and divided into two half thread sleeves; one half thread sleeve is mounted on the external threads of the first end or the second end of the tensile specimen; the thread sleeves are clamped by the clamping device, and the middle is machined into a preset shape. According to the machining method, texture of the machined threads is effectively protected on the basis of no need of substantial change of the clamping device of machining equipment, the threads are not damaged, the machined tensile specimen meets the specification standard of a tensile test specimen, and the accuracy of a tensile test is guaranteed.
Description
Technical field
The present invention relates to field of machining, particularly a kind of job operation of tensile sample.
Background technology
Tension test is the test measuring the series of characteristics of material under tensile load effect, also known as tensile test.It is one of basic skills of mechanical property of materials test, is mainly used in the performance of standard that whether experimental material conform with the regulations and research material.
Need in tension test to adopt stretching clamp to fix sample to be checked, stretching clamp is decided by the size of sample and test force size.When sample is column type, the fixture of bilateral structure need be adopted to fix sample, therefore, need the two ends machining screw at sample, prevent sample from skidding in tension test process, the accuracy of warranty test process and result.
For making sample meet tension test specification requirement, first sample to be processed to be cut into the rectangle blank block of certain size, then stud shape is processed at the two ends of sample, making the thread size at two ends consistent with the threaded engagement of stretching tool.But after processing the screw thread of sample one end, to the other end carry out screw thread process then comparatively difficulty.If clamp with the three-jaw folder of lathe the one end processed to process the other end, then can damage manufactured screw thread, the size of sample of the sample after processing and tension test is caused to require to produce relatively large deviation, affect the crudy of sample, the sample after processing is caused to be difficult to embed the stretching tool of testing machine, even cannot embed, impact is treated test material and is carried out tensile property analysis.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of job operation of tensile sample, thus overcome the defect that screw thread that existing sample processing method easily damages two ends causes the test findings of tensile property.
For achieving the above object, the invention provides a kind of job operation of tensile sample, tensile sample is cylindric, and the two ends of tensile sample are equipped with external thread, job operation comprises the steps: the blank with gripping means grips tensile sample, and blank is processed into columned tensile sample; With the first end of gripping means grips tensile sample, process one section of external thread at the second end of tensile sample; With the middle part of gripping means grips tensile sample, process one section of external thread at the first end of tensile sample; The swivel nut that processing matches with the external thread of tensile sample, is separated into two and half identical swivel nuts by swivel nut; One and half swivel nuts are arranged on the first end of tensile sample or the external thread of the second end; Use gripping means grips swivel nut, reservation shape is processed at middle part.
Preferably, in technique scheme, clamp device is three-jaw folder.
Compared with prior art, the present invention has following beneficial effect:
Job operation of the present invention is the available protecting texture of manufactured screw thread on the basis without the need to significantly changing the clamping device of process equipment; it is made not to be damaged; ensure that the tensile sample after processing meets the specification standards of tensile test piece, guarantee the accuracy of tension test.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the job operation according to tensile sample of the present invention.
Fig. 2 is the structural drawing according to cylindric tensile sample of the present invention.
Fig. 3 is the structural drawing that one end according to the present invention machined externally threaded tensile sample.
Fig. 4 is the structural drawing according to swivel nut of the present invention.
Fig. 5 is the assembling exploded view according to swivel nut of the present invention and tensile sample.
Fig. 6 is the wiring layout according to swivel nut of the present invention and tensile sample.
Fig. 7 is the structural drawing according to the tensile sample machined of the present invention.
Main Reference Numerals illustrates:
1-tensile sample, 2-external thread, 3-swivel nut, 4-parallel-segment, 5-three-jaw presss from both sides.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole instructions and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
As shown in Figure 1, comprise the steps: according to the job operation of the tensile sample of the specific embodiment of the invention
Sample to be processed is cut into the rectangle blank of certain size.
With the three-jaw folder 5 clamping blank of process equipment, and blank is processed into columned tensile sample 1, as shown in Figure 2.
Press from both sides the first end of 5 garter extension samples 1 with the three-jaw of process equipment, process one section of external thread 2 at the second end of tensile sample 1, as shown in Figure 3.The diameter 1-3mm less of the diameter of above-mentioned cylinder of external thread 2.
Press from both sides the parallel-segment 4 (as shown in Figure 6) at the middle part of 5 garter extension samples 1 with the three-jaw of process equipment, process one section of external thread 2 at the first end of tensile sample 1;
The swivel nut 3 that processing matches with the external thread 2 of tensile sample 1, is separated into two and half identical swivel nuts by swivel nut 3, as shown in Figure 4;
One and half swivel nuts are arranged on the first end of tensile sample 1 or the external thread 2 of the second end, as illustrated in Figures 5 and 6;
With the three-jaw folder 5 clamping swivel nut of process equipment, and then tensile sample 1 is fixed on three-jaw folder upper (as shown in Figure 6), parallel-segment 4 is processed into reservation shape.As an embodiment, this reservation shape is the cylindrical section that diameter is less than externally threaded diameter, and processes arc transition district between this cylindrical section and the external thread at its two ends.
Job operation of the present invention is the available protecting texture of manufactured screw thread on the basis without the need to significantly changing the clamping device of process equipment; it is made not to be damaged; ensure that the tensile sample after processing meets the specification standards of tensile test piece, guarantee the accuracy of tension test.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (2)
1. a job operation for tensile sample, described tensile sample is cylindric, and the two ends of described tensile sample are equipped with external thread, it is characterized in that, described job operation comprises the steps:
With the blank of tensile sample described in gripping means grips, and described blank is processed into columned tensile sample;
With the first end of tensile sample described in gripping means grips, process one section of external thread at the second end of described tensile sample;
With the middle part of tensile sample described in gripping means grips, process one section of external thread at the first end of described tensile sample;
The swivel nut that processing matches with the external thread of described tensile sample, is separated into two and half identical swivel nuts by described swivel nut;
Described half swivel nut is arranged on the first end of described tensile sample or the external thread of the second end;
With swivel nut described in gripping means grips, reservation shape is processed at described middle part.
2. the job operation of tensile sample according to claim 1, is characterized in that, described clamp device is three-jaw folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510671408.6A CN105258992B (en) | 2015-10-15 | 2015-10-15 | The processing method of tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510671408.6A CN105258992B (en) | 2015-10-15 | 2015-10-15 | The processing method of tensile sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105258992A true CN105258992A (en) | 2016-01-20 |
| CN105258992B CN105258992B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510671408.6A Active CN105258992B (en) | 2015-10-15 | 2015-10-15 | The processing method of tensile sample |
Country Status (1)
| Country | Link |
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| CN (1) | CN105258992B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367425A (en) * | 2017-08-08 | 2017-11-21 | 上海电气核电设备有限公司 | Screw thread protection fitting device is processed in a kind of tension test |
Citations (6)
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|---|---|---|---|---|
| RU2255323C1 (en) * | 2004-03-24 | 2005-06-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский университет технологии и дизайна" | Device for thread tensile testing |
| CN201016896Y (en) * | 2007-03-27 | 2008-02-06 | 宝山钢铁股份有限公司 | Clamping device for milling sample piece |
| CN202894345U (en) * | 2012-11-27 | 2013-04-24 | 董祥义 | Automatic device for processing two ends of shaft part |
| CN103207111A (en) * | 2013-03-14 | 2013-07-17 | 中国石油天然气集团公司 | Round-rod tensile sample with annular crack and method for manufacturing round-rod tensile sample |
| CN203599882U (en) * | 2013-12-06 | 2014-05-21 | 武汉钢铁(集团)公司 | Rectangular blank processing fixture of round tensile sample |
| CN203751800U (en) * | 2014-04-10 | 2014-08-06 | 江西铜业股份有限公司 | Machining device directly clamping threaded surface without damaging thread |
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2015
- 2015-10-15 CN CN201510671408.6A patent/CN105258992B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2255323C1 (en) * | 2004-03-24 | 2005-06-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский университет технологии и дизайна" | Device for thread tensile testing |
| CN201016896Y (en) * | 2007-03-27 | 2008-02-06 | 宝山钢铁股份有限公司 | Clamping device for milling sample piece |
| CN202894345U (en) * | 2012-11-27 | 2013-04-24 | 董祥义 | Automatic device for processing two ends of shaft part |
| CN103207111A (en) * | 2013-03-14 | 2013-07-17 | 中国石油天然气集团公司 | Round-rod tensile sample with annular crack and method for manufacturing round-rod tensile sample |
| CN203599882U (en) * | 2013-12-06 | 2014-05-21 | 武汉钢铁(集团)公司 | Rectangular blank processing fixture of round tensile sample |
| CN203751800U (en) * | 2014-04-10 | 2014-08-06 | 江西铜业股份有限公司 | Machining device directly clamping threaded surface without damaging thread |
Non-Patent Citations (3)
| Title |
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| 王珏: "Al-Si-Cu-Zn压铸铝合金的显微组织及力学性能", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 金汉荣译李治平校: "如何夹紧螺纹一端进行下序加工", 《工具技术》 * |
| 黄继军: "螺纹夹持夹具", 《机械工人（冷加工）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367425A (en) * | 2017-08-08 | 2017-11-21 | 上海电气核电设备有限公司 | Screw thread protection fitting device is processed in a kind of tension test |
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| Publication number | Publication date |
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| CN105258992B (en) | 2018-01-30 |
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