CN207472162U - Fastener ensures the micro linear change measuring device of load test - Google Patents
Fastener ensures the micro linear change measuring device of load test Download PDFInfo
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- CN207472162U CN207472162U CN201721561948.XU CN201721561948U CN207472162U CN 207472162 U CN207472162 U CN 207472162U CN 201721561948 U CN201721561948 U CN 201721561948U CN 207472162 U CN207472162 U CN 207472162U
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- fastener
- workbench
- mounting hole
- hole
- amesdial
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Abstract
The utility model discloses a kind of fasteners to ensure the micro linear change measuring device of load test, it includes rail brackets, ball-screw and guide rod are installed on rail brackets, workbench is installed between ball-screw and guide rod, the top of ball-screw is equipped with handwheel, the upper surface middle part of workbench is equipped with arc groove, amesdial is placed in arc groove, the both sides of arc groove are arranged with spring detent, the measuring rod mounting hole through workbench is equipped with behind amesdial, the pedestal of measuring rod mounting hole vertical lower is equipped with thimble；The lower surface of workbench is equipped with locating piece, the top of locating piece is equipped with the location hole opposite with spring detent mounting hole, the middle part of locating piece is equipped with the positioning measurement hole to match with measuring rod mounting hole, and the lower section in positioning measurement hole is equipped with the fastener location hole being adapted with the outer diameter of fastener to be measured.The utility model ensure that the stabilization of part to be measured in measurement process, and the measurement data accuracy obtained is high.
Description
Technical field
The utility model is related to length metering equipment technical field, specifically a kind of fastener ensures that load test is micro-
Measure linear change measuring device.
Background technology
GB/T3098.1-2010《Fastener mechanical performance bolt, screw and stud》" fastener ensures to carry middle clause 9.6
Lotus is tested " regulation：By ensureing load test as defined in implementation, 15s is loaded, measures what fastener was generated by guarantee load test
Permanent elongation.The standard of evaluation：The permanent elongation of fastener is less than or equal to 12.5 μm.
At present frequently with measurement fastener length vernier caliper precision it is inadequate（Measurement accuracy：0.01mm）, spiral survey
Micro- device measurement length range is limited, and the datum level requirement of measurement is high.In addition, to reduce the personnel in measuring device, position as far as possible
The systematic errors such as put.Because fastener specification is more, length range is wide, weight differs, for how to ensure what is tested in measurement process
Accuracy and stability are particularly important.
The problem of for more than, it is necessary to be taken in the tool and measuring system of measurement, one kind need to be developed and met
The device of test requirements document, to ensure the fastener accuracy that micro linear change measures in load test is ensured, and ensure
It is easy to operate during test measurement, improve detection efficiency.
Utility model content
The purpose of this utility model is to provide a kind of fastener and ensures the micro linear change measuring device of load test, is protecting
The high-precision of confirmatory test requirement simultaneously, solves the orientation problem of fastener in experiment, reduces measurement system error to measurement result
Influence.
In order to achieve the above objectives, technical solution adopted in the utility model is：
A kind of fastener ensures the micro linear change measuring device of load test, it includes the guide rail branch being mounted on pedestal
Frame, the rail brackets include ball-screw and two guide rods being mutually parallel, are equipped between ball-screw and guide rod
Horizontal workbench, the top of ball-screw are equipped with handwheel, and the upper surface middle part of workbench is equipped with arc groove, amesdial
It is placed in arc groove, the both sides of arc groove are arranged with the spring detent through workbench, are equipped with and pass through behind amesdial
The measuring rod mounting hole of workbench is worn, the pedestal of measuring rod mounting hole vertical lower is equipped with installs centerline hole with measuring rod
The thimble straight up to coincide；The lower surface of workbench is equipped with replaceable locating piece, and the top of locating piece is equipped with and bullet
The opposite location hole of spring bayonet lock mounting hole, the middle part of locating piece are equipped with the positioning measurement hole to match with measuring rod mounting hole,
The lower section in positioning measurement hole is equipped with the fastener location hole being adapted with the outer diameter of fastener to be measured.
Preferably, the thimble, spring detent top be equipped with abrasion-proof steel ball.
Preferably, the amesdial is dial test indicator.
Taper hole is measured when the utility model is used, being set in the center at fastener both ends to be tested, it will be to be tested
The top of fastener is screwed in the fastener location hole of locating piece, makes the top of fastener to be tested and the top of fastener location hole
Portion completely attaches to, and is in contact at the top of the measurement taper hole of the bottom centre of fastener to be tested and the thimble on pedestal；By amesdial
It is placed in the arc groove on workbench, the measuring rod of amesdial is inserted into measuring rod mounting hole, is rotated handwheel, is made amesdial
Measuring rod be gradually inserted in the positioning measurement hole at locating piece center, when the measuring rod front end of amesdial and fastener top to be tested
When the measurement taper hole at end is in contact, the number of degrees by amesdial are that would know that fastener to be tested is ensureing what load test generated
Permanent elongation length.When replacing fastener to be measured, amesdial measuring rod need to be gently only lifted, light top spring detent is i.e. desirable upwards
Go out and replace fastener to be tested.According to the specification of fastener to be tested, being adapted with fastener to be tested for different size is replaced
Locating piece, realize the test of all kinds of specification fasteners.
The beneficial effects of the utility model are：
（1）The utility model is treated test fastener and is determined by the way of spring detent, bottom thimble three-point fix
Position both can guarantee the stabilization of part to be measured in measurement process, in turn, ensures that and measures taper hole on the same axis, the measurement number obtained
According to accuracy height, the requirement of fastener test disclosure satisfy that；
（2）The utility model adjusts the height of workbench by ball-screw, guide rod, is loaded by locating piece to be measured
Fastener is tried, the measurement of the fastener of different model specification can be met, measures specification limit M6 ~ M60, length range 20mm
~ 600mm suitable for mass detection, improves the efficiency of detection, reduces processing cost；
（3）The utility model adjusts the height of workbench by handwheel, to meet the measurement distance of fastener, simultaneously also
The micro-adjustment of distance can be measured；
（4）The utility model sets arc groove in work top, the stabilization of amesdial is ensure that, using guide rod and ball
Leading screw forms parallel sliding guide rail, ensure that the balance and stability for making platform, improves the precision of measurement data；
（5）The utility model sets abrasion-proof steel ball on the top of positioning thimble, spring detent, and it is new effectively to extend this practicality
The service life of type, reduces testing cost.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of locating piece in Fig. 1；
In figure：1st, handwheel, 2, ball-screw, 3, amesdial, 4, workbench, 5, guide rod, 6, spring detent, 7, positioning
Block, 8, fastener to be tested, 9, thimble, 10, pedestal, 11, reference test bar mounting hole, 12, measure taper hole, 13, location hole, 14, fixed
Position measured hole, 15, fastener location hole.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of fastener as shown in Figure 1 and Figure 2 ensures the micro linear change measuring device of load test, it includes installation
Rail brackets on pedestal 10, rail brackets include ball-screw 2 and two guide rods 5 being mutually parallel, ball-screw 2 with
Horizontal workbench 4 is installed, the top of ball-screw 2 is equipped with handwheel 1, the upper surface of workbench 4 between guide rod 5
Middle part is equipped with arc groove, and amesdial 3 is placed in arc groove, and the both sides of arc groove are arranged with the spring through workbench 4
Bayonet lock 6 is equipped with the measuring rod mounting hole 11 through workbench 4 behind amesdial 3,11 vertical lower of measuring rod mounting hole
Pedestal 10 is equipped with the thimble 9 straight up to coincide with 11 center line of measuring rod mounting hole；The lower surface of workbench 4 is set
There is replaceable locating piece 7, the top of locating piece 7 is equipped with the location hole 13 opposite with 6 mounting hole of spring detent, locating piece 7
Middle part is equipped with the positioning measurement hole 14 to match with measuring rod mounting hole 11, and the lower section in positioning measurement hole 14 is equipped with and fastening to be measured
The fastener location hole 15 that the outer diameter of part is adapted.
Thimble 9, spring detent 6 top be equipped with abrasion-proof steel ball.
Amesdial 3 is dial test indicator.
Taper hole 12 is measured when the utility model is used, being set in the center at 8 both ends of fastener to be tested, it will be to be measured
The top for trying fastener 8 is screwed in the fastener location hole 15 of locating piece 7, and the top of fastener 8 to be tested is made to determine with fastener
The top in position hole 15 completely attaches to, and the bottom centre of fastener 8 to be tested measures taper hole 12 and 9 top of thimble on pedestal 10
It is in contact；Amesdial 3 is placed in the arc groove on workbench 4, the measuring rod of amesdial 3 is inserted into measuring rod mounting hole 11
It is interior, handwheel 1 is rotated, the measuring rod of amesdial 3 is made to be gradually inserted in the positioning measurement hole 14 at 7 center of locating piece, when amesdial 3
When measuring rod front end is in contact with the measurement taper hole 12 on 8 top of fastener to be tested, it would know that and treat by the number of degrees of amesdial 3
Test fastener 8 is in the permanent elongation length for ensureing load test generation.When replacing fastener 8 to be measured, only thousand need to be gently lifted
Divide 3 measuring rod of table, light top spring detent can be taken off replacing fastener 8 to be tested upwards.According to the rule of fastener 8 to be tested
Lattice replace the locating piece 7 being adapted with fastener 8 to be tested of different size, realize the test of all kinds of specification fasteners 8.
The utility model is treated test fastener and is positioned by the way of spring detent, bottom thimble three-point fix,
Both it can guarantee the stabilization of part to be measured in measurement process, and in turn, ensured that and measure taper hole on the same axis, the measurement data obtained
Accuracy is high, disclosure satisfy that the requirement of fastener test；The utility model adjusts workbench by ball-screw, guide rod
Highly, it is loaded fastener to be tested by locating piece, the measurement of the fastener of different model specification can be met, measure specification
Range M6 ~ M60, length range 20mm ~ 600mm suitable for mass detection, improve the efficiency of detection, reduce processing cost.
Claims (3)
1. a kind of fastener ensures the micro linear change measuring device of load test, it includes being mounted on pedestal（10）On guide rail
Stent, it is characterised in that：The rail brackets include ball-screw（2）The guide rod being mutually parallel with two（5）, ball-screw
（2）With guide rod（5）Between horizontal workbench is installed（4）, ball-screw（2）Top handwheel is installed（1）, work
Platform（4）Upper surface middle part be equipped with arc groove, amesdial（3）It is placed in arc groove, the both sides of arc groove, which are arranged with, to be passed through
Wear workbench（4）Spring detent（6）, amesdial（3）Behind be equipped with through workbench（4）Measuring rod mounting hole
（11）, measuring rod mounting hole（11）The pedestal of vertical lower（10）It is equipped with and measuring rod mounting hole（11）What center line coincided
Thimble straight up（9）；Workbench（4）Lower surface be equipped with replaceable locating piece（7）, locating piece（7）Top be equipped with
With spring detent（6）The opposite location hole of mounting hole（13）, locating piece（7）Middle part be equipped with and measuring rod mounting hole（11）Phase
Matched positioning measurement hole（14）, positioning measurement hole（14）Lower section be equipped with the fastener that is adapted with the outer diameter of fastener to be measured
Location hole（15）.
2. fastener according to claim 1 ensures the micro linear change measuring device of load test, it is characterised in that：Institute
State thimble（9）, spring detent（6）Top be equipped with abrasion-proof steel ball.
3. fastener according to claim 1 or 2 ensures the micro linear change measuring device of load test, feature exists
In：The amesdial（3）For dial test indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721561948.XU CN207472162U (en) | 2017-11-21 | 2017-11-21 | Fastener ensures the micro linear change measuring device of load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721561948.XU CN207472162U (en) | 2017-11-21 | 2017-11-21 | Fastener ensures the micro linear change measuring device of load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472162U true CN207472162U (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721561948.XU Active CN207472162U (en) | 2017-11-21 | 2017-11-21 | Fastener ensures the micro linear change measuring device of load test |
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| CN (1) | CN207472162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941117A (en) * | 2017-11-21 | 2018-04-20 | 兰州兰石检测技术有限公司 | Fastener ensures the micro linear change measuring device of load test |
-
2017
- 2017-11-21 CN CN201721561948.XU patent/CN207472162U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941117A (en) * | 2017-11-21 | 2018-04-20 | 兰州兰石检测技术有限公司 | Fastener ensures the micro linear change measuring device of load test |
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