CN105890982A - Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument - Google Patents
Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument Download PDFInfo
- Publication number
- CN105890982A CN105890982A CN201610487663.XA CN201610487663A CN105890982A CN 105890982 A CN105890982 A CN 105890982A CN 201610487663 A CN201610487663 A CN 201610487663A CN 105890982 A CN105890982 A CN 105890982A
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- China
- Prior art keywords
- fixture block
- pull bar
- slot
- pull rod
- bolt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device for testing fatigue of a connecting piece of a one-arm three-dimensional measurement scribing instrument. The device comprises a first fixture block and a second fixture block, wherein a first pull rod and a second pull rod are respectively fixedly connected with the first fixture block and the second fixture block, the first pull rod is used for fixed connection between the first fixture block and a hydraulic testing machine, and the second pull rod is used for fixed connection between the second fixture block and the hydraulic testing machine; one T-shaped slot is respectively formed in each of the first fixture block and the second fixture block, the width of the bottom end of each T-shaped slot is larger than the width of the open end, the depth direction of the T-shaped slot in the first fixture block is parallel to axial direction of the first pull rod, the depth direction of the T-shaped slot in the second fixture block is parallel to the axial direction of the second pull rod; the first pull rod and the first fixture block are detachably connected; and the second pull rod and the second fixture block are detachably connected. By adopting the structure, compared with the condition that a direct connection bolt is connected with the hydraulic testing machine, efficiency of picking and placing bolts on the hydraulic testing machine is ten times higher than that of the traditional scheme; and structural style adopted by the device disclosed by the invention is convenient for complete set popularization.
Description
Technical field
The present invention relates to mechanical fastener Experiment platform technology field, particularly relate to the assay device of single armed three-dimensional measurement lining instrument connector fatigue strength.
Background technology
Bolt is a kind of machine components, the usually threaded securing member of the cylinder of adapted nut.Bolt is made up of head and screw rod (with externally threaded cylinder) two parts, needs and nut screw connection during use, and for being fastenedly connected two parts with through hole, this type of attachment claims bolt to connect.As nut is screwed off from bolt, the two part can be made again separately, therefore bolt connection is belonging to removably connect.Divide by the force way connected: point common and have articulation hole.Divide by nose shape: have turret head, round end, square spigot, countersunk head etc..Wherein turret head is the most frequently used.At present, the bolt applying to different field or purposes emerges in an endless stream, and such as requires that case hardness is high and heart portion has flexible self-tapping screw, for preventing the anticorrosive bolt of flow-induced corrosion, high temperature bolt etc..But, the basic purposes of bolt is to be required to meet the fastening needs of connector, therefore the tensile strength that bolt has satisfied utilization is the basic demand to bolt.
In prior art in the course of processing of bolt, needing to carry out multi-step process, these manufacturing procedures generally comprise the process technique for improving bolt mechanical property such as heat treatment, case-carbonizing process.Tensile mechanical performance for finished product bolt detects, and in prior art, general employing hydraulic dynamometer is measured, but, in prior art, bolt is the highest with the joint efficiency of hydraulic dynamometer, affects the efficiency of bolt tension force test.
Summary of the invention
For in above-mentioned prior art for finished product bolt tensile mechanical performance detect, in prior art, general employing hydraulic dynamometer is measured, but, in prior art, bolt is the highest with the joint efficiency of hydraulic dynamometer, the problem affecting the efficiency of bolt tension force test, the invention provides the assay device of single armed three-dimensional measurement lining instrument connector fatigue strength.
The assay device of the single armed three-dimensional measurement lining instrument connector fatigue strength that the present invention provides solves problem by techniques below main points: the assay device of single armed three-dimensional measurement lining instrument connector fatigue strength, including the first fixture block and the second fixture block, the first pull bar and the second pull bar it has been respectively fixedly connected with on described first fixture block and the second fixture block, described first pull bar is connected with the fixing of hydraulic dynamometer for the first fixture block, and described second pull bar is connected with the fixing of hydraulic dynamometer for the second fixture block；
A T-slot it is provided with on described first fixture block and the second fixture block, the bottom width of described T-slot is more than open end width, on first fixture block, the depth direction of T-slot is parallel with the axis direction of the first pull bar, and on the second fixture block, the depth direction of T-slot is parallel with the axis direction of the second pull bar；First pull bar and the first fixture block are in the relation of removably connecting；Second pull bar and the second fixture block are in the relation of removably connecting.
Concrete, when using, on first fixture block and the second fixture block, the open end of T-slot is provided opposite to, so, at screw rod to be tested or nut, after threaded each self-corresponding nut and screw rod, can form an I-shape construction, the wider part in these I-shape construction two ends is arranged on the bottom of two T-slots respectively, during the first fixture block and/or the second fixture block move with hydraulic dynamometer, tension can be applied on I-shape construction, reach the purpose of bolt rubbish experiment.Use this structure, be connected to hydraulic dynamometer compared to being directly connected to bolt, have and on hydraulic dynamometer, pick and place bolt be faster than the efficiency of traditional scheme ten times.First pull bar and the first fixture block are in the relation of removably connecting；Second pull bar and the second fixture block are in the relation of removably connecting, can make when for the bolt of different model or size, the first fixture block and second fixture block of different size T-slot it is provided with by replacing, complete the strength test of corresponding bolt, this setting i.e. facilitates views with same first pull bar and the second pull bar, supporting the first different fixture block and the second fixture block, just can complete the test of a series of bolt strength, be beneficial to the complete popularization of this device.First pull bar and the concrete type of attachment of the first fixture block, the second pull bar and the second fixture block, preferably employ on the first fixture block and the second fixture block, be respectively provided with two back-to-back T-slots, the bottom width of T-slot is more than opening, it is simultaneously set on the first pull bar and the second pull bar be respectively provided with end bulb for the end being connected with the first fixture block, the second fixture block respectively, end bulb is arranged in the bottom of one of them T-slot, just can well realize the present invention.
Further technical scheme is:
The for the benefit of uniformity of each point stress on the first pull bar, the first fixture block, screw rod or nut cross section, the centerline collineation of T-slot on the axis of described first pull bar and the first fixture block.
The for the benefit of uniformity of each point stress on the second pull bar, the second fixture block, screw rod or nut cross section, the centerline collineation of T-slot on the axis of described second pull bar and the second fixture block.
In the case of there is no auxiliary threaded rod or nut, in order to make this fixture at least can be used for, two ends are all not provided with the threaded rod of screw cap end, one end is provided with the pull test of screw rod of screw cap end, being provided with nut in T-slot on first fixture block and/or the T-slot on the second fixture block, described nut is positioned at the bottom of corresponding T-slot.
The method have the advantages that
In this structure, on first fixture block and the second fixture block, the open end of T-slot is provided opposite to, so, at screw rod to be tested or nut, after threaded each self-corresponding nut and screw rod, an I-shape construction can be formed, the wider part in these I-shape construction two ends is arranged on the bottom of two T-slots respectively, during the first fixture block and/or the second fixture block move with hydraulic dynamometer, tension can be applied on I-shape construction, reach the purpose of bolt rubbish experiment.Use this structure, be connected to hydraulic dynamometer compared to being directly connected to bolt, have and on hydraulic dynamometer, pick and place bolt be faster than the efficiency of traditional scheme ten times.
When for the bolt of different model or size, the first fixture block and second fixture block of different size T-slot it is provided with by replacing, complete the strength test of corresponding bolt, this setting i.e. facilitates views with same first pull bar and the second pull bar, supporting the first different fixture block and the second fixture block, just can complete the test of a series of bolt strength, be beneficial to the complete popularization of this device.
Accompanying drawing explanation
Fig. 1 is the structural representation of one specific embodiment of assay device of single armed three-dimensional measurement lining instrument connector fatigue strength of the present invention.
Numbering in figure is followed successively by: 1, the first pull bar, the 2, first fixture block, and 3, experiment screw, the 4, second fixture block, 5, nut, the 6, second pull bar.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but the structure of the present invention is not limited only to following example.
Embodiment 1:
As shown in Figure 1, the assay device of single armed three-dimensional measurement lining instrument connector fatigue strength, including the first fixture block 2 and the second fixture block 4, it has been respectively fixedly connected with the first pull bar 1 and the second pull bar 6 on described first fixture block 2 and the second fixture block 4, described first pull bar 1 is connected with the fixing of hydraulic dynamometer for the first fixture block 2, and described second pull bar 6 is connected with the fixing of hydraulic dynamometer for the second fixture block 4；
It is provided with a T-slot on described first fixture block 2 and the second fixture block 4, the bottom width of described T-slot is more than open end width, on first fixture block 2, the depth direction of T-slot is parallel with the axis direction of the first pull bar 1, and on the second fixture block 4, the depth direction of T-slot is parallel with the axis direction of the second pull bar 6；First pull bar 1 and the first fixture block 2 are in the relation of removably connecting；Second pull bar 6 and the second fixture block 4 are in the relation of removably connecting.
In the present embodiment, on first fixture block 2 and the second fixture block 4, the open end of T-slot is provided opposite to, so, at screw rod to be tested or nut 5, after threaded each self-corresponding nut 5 and screw rod, an I-shape construction can be formed, the wider part in these I-shape construction two ends is arranged on the bottom of two T-slots respectively, screw 3 of testing as arranged in Fig. 1 is provided with the single ended bolt of nut 5 end for upper end, after the threaded nut in lower end 5, can be held between the first fixture block 2 and the second fixture block 4.During the first fixture block 2 and/or the second fixture block 4 move with hydraulic dynamometer, tension can be applied on I-shape construction, reach the purpose of bolt rubbish experiment.Use this structure, be connected to hydraulic dynamometer compared to being directly connected to bolt, have and on hydraulic dynamometer, pick and place bolt be faster than the efficiency of traditional scheme ten times.
In the present embodiment, when for the bolt of different model or size, the first fixture block 2 and the second fixture block 4 of different size T-slot it is provided with by replacing, complete the strength test of corresponding bolt, this setting i.e. facilitates views with same first pull bar 1 and the second pull bar 6, supporting the first different fixture block 2 and the second fixture blocks 4, just can complete the test of a series of bolt strength, be beneficial to the complete popularization of this device.
Embodiment 2:
As shown in Figure 1, the present embodiment is further qualified on the basis of embodiment 1: for the benefit of uniformity of each point stress, the centerline collineation of T-slot on the axis of described first pull bar 1 and the first fixture block 2 on first pull bar the 1, first fixture block 2, screw rod or nut 5 cross section.
The for the benefit of uniformity of each point stress, the centerline collineation of T-slot on the axis of described second pull bar 6 and the second fixture block 4 on second pull bar the 6, second fixture block 4, screw rod or nut 5 cross section.
In the case of there is no auxiliary threaded rod or nut 5, in order to make this fixture at least can be used for, two ends are all not provided with the threaded rod of nut 5 end, one end is provided with the pull test of screw rod of nut 5 end, being provided with nut 5 in T-slot on first fixture block 2 and/or the T-slot on the second fixture block 4, described nut 5 is positioned at the bottom of corresponding T-slot.
Above content is to combine the further description that the present invention is made by concrete preferred implementation, it is impossible to assert that the detailed description of the invention of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, other embodiments drawn under without departing from technical scheme, should be included in protection scope of the present invention.
Claims (4)
1. the assay device of single armed three-dimensional measurement lining instrument connector fatigue strength, it is characterized in that, including the first fixture block (2) and the second fixture block (4), the first pull bar (1) and the second pull bar (6) it has been respectively fixedly connected with on described first fixture block (2) and the second fixture block (4), described first pull bar (1) is connected with the fixing of hydraulic dynamometer for the first fixture block (2), and described second pull bar (6) is connected with the fixing of hydraulic dynamometer for the second fixture block (4)；
It is provided with a T-slot on described first fixture block (2) and the second fixture block (4), the bottom width of described T-slot is more than open end width, the depth direction of the upper T-slot of the first fixture block (2) is parallel with the axis direction of the first pull bar (1), and the depth direction of the upper T-slot of the second fixture block (4) is parallel with the axis direction of the second pull bar (6)；First pull bar (1) and the first fixture block (2) are in the relation of removably connecting；Second pull bar (6) and the second fixture block (4) are in the relation of removably connecting.
The assay device of single armed three-dimensional measurement lining instrument connector fatigue strength the most according to claim 1, it is characterised in that the axis of described first pull bar (1) and the centerline collineation of the upper T-slot of the first fixture block (2).
The assay device of single armed three-dimensional measurement lining instrument connector fatigue strength the most according to claim 1, it is characterised in that the axis of described second pull bar (6) and the centerline collineation of the upper T-slot of the second fixture block (4).
The assay device of single armed three-dimensional measurement lining instrument connector fatigue strength the most according to claim 1, it is characterized in that, being provided with nut (5) in T-slot on first fixture block (2) and/or the T-slot on the second fixture block (4), described nut (5) is positioned at the bottom of corresponding T-slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487663.XA CN105890982A (en) | 2016-06-29 | 2016-06-29 | Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487663.XA CN105890982A (en) | 2016-06-29 | 2016-06-29 | Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105890982A true CN105890982A (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487663.XA Pending CN105890982A (en) | 2016-06-29 | 2016-06-29 | Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument |
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| Country | Link |
|---|---|
| CN (1) | CN105890982A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100863693B1 (en) * | 2006-12-27 | 2008-10-15 | 주식회사 성우하이텍 | Jig unit for bolt tension test |
| CN103776689A (en) * | 2012-10-24 | 2014-05-07 | 西安志越机电科技有限公司 | Tensile strength detection fixture for screw |
| CN203824836U (en) * | 2014-04-22 | 2014-09-10 | 江苏法尔胜材料分析测试有限公司 | Fixture for performing stretching and load ensuring tests on ultrashort bolts for bridges |
| CN105628495A (en) * | 2016-03-01 | 2016-06-01 | 成都亨通兆业精密机械有限公司 | Auxiliary device used for bolt strength test |
-
2016
- 2016-06-29 CN CN201610487663.XA patent/CN105890982A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100863693B1 (en) * | 2006-12-27 | 2008-10-15 | 주식회사 성우하이텍 | Jig unit for bolt tension test |
| CN103776689A (en) * | 2012-10-24 | 2014-05-07 | 西安志越机电科技有限公司 | Tensile strength detection fixture for screw |
| CN203824836U (en) * | 2014-04-22 | 2014-09-10 | 江苏法尔胜材料分析测试有限公司 | Fixture for performing stretching and load ensuring tests on ultrashort bolts for bridges |
| CN105628495A (en) * | 2016-03-01 | 2016-06-01 | 成都亨通兆业精密机械有限公司 | Auxiliary device used for bolt strength test |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |