CN108287109A - The high accuracy of alignment fixture coupling arrangement of mechanics machine - Google Patents
The high accuracy of alignment fixture coupling arrangement of mechanics machine Download PDFInfo
- Publication number
- CN108287109A CN108287109A CN201711389672.6A CN201711389672A CN108287109A CN 108287109 A CN108287109 A CN 108287109A CN 201711389672 A CN201711389672 A CN 201711389672A CN 108287109 A CN108287109 A CN 108287109A
- Authority
- CN
- China
- Prior art keywords
- connection
- conical surface
- external screw
- clamping part
- high accuracy
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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
-
- 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
- G01N2203/0405—Features allowing alignment between specimen and chucks
-
- 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
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
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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
A kind of high accuracy of alignment fixture coupling arrangement of mechanics machine of the invention, including：Clamping part, fixed part, connection part；One end end face that clamping part is connected with connection part has the convex conical surface, and what it is close to the convex conical surface is positive pressure external screw thread, for coordinating connection part connection locking；The other end face that connection part is connected with fixed part has positioning concave cone face, and what it is close to positioning concave cone face is anti-tooth external screw thread, for coordinating connection part connection locking；Connection part is the connection swivel nut that both ends are respectively provided with positive and negative tooth internal thread.This connecting device structure compact and portable, processing cost is low, easily operated, while can guarantee fixture and the high accuracy of alignment of testing machine pull rod during the experiment, and connection is firm, the advantage that can be continuously adjusted again with fixture axial position relative to the connection of conventional flange disk.
Description
Technical field
The present invention relates to the high accuracy of alignment fixture coupling arrangements of mechanics machine, belong to material testing apparatus field, but
Not limited to this, the present invention is also covered by the occasion that other industry requires high accuracy of alignment connection between part.
Background technology
Grip of testing machine type can be divided by handling characteristics：Universal fixture；Specificity fixture；Flexible jig；Combination
Fixture.Sample of different shapes is fixed on HF fatigue testing machine, fixture then plays important anastomosis, an examination
The machine of testing is commonly provided with number and covers different purposes specification fixtures.
However coupling for fixture and testing machine, common nut tightening structure centring property is bad, and axial force is larger,
Since bias makes sample bear additional moment of flexure；Although ring flange coupling structure has preferable accuracy of alignment, complex, occupy
Space in limited experimentation machine, and it is once packed into fixture, fixture is circumferentially unable to adjust, and additional torsion may be caused to sample, these
Disadvantage seriously affects the accuracy of test result.Therefore, it is necessory to design high accuracy of alignment fixture connection dress easy to use
It sets.
Invention content
The technology of the present invention solves the problems, such as：Overcome classic fatigue fixture to be threadedly coupled poor to neutrality, seriously affects experiment knot
The problem of fruit, it is complex although connection structure of ring flange has preferable accuracy of alignment, space in limited experimentation machine is occupied,
And it is once packed into fixture, fixture is circumferentially unable to adjust, and additional torsion may be caused to sample.Therefore, the present invention provides one kind
The high accuracy of alignment fixture coupling arrangement of testing machine is guarantee test number to realize the reliability to testing of materials test result
According to accuracy provide support.
To solve the above problems, the present invention a kind of mechanics machine high accuracy of alignment fixture coupling arrangement, including fixation
Portion 1, connection part 2 and clamping part 3；It is characterized in that：
The fixed part 1 includes positioning concave cone face 6 and anti-tooth external screw thread 7；Close to the anti-tooth external screw thread in positioning concave cone face 6
7 one end are connected with the other end of connection part 2.Wherein, positioning concave cone face 6 is used for realizing precise locating function.
Articulated connection 2 includes anti-tooth internal thread 8 and orthodontic internal thread 9, and connection part 2 is a coupling sleeve, by anti-
Tooth internal thread 8 and orthodontic internal thread 9 realize the connection cooperation of two individual components fixed parts 1 and clamping part 3.
The anti-tooth internal thread 8 be for being matched with anti-tooth external screw thread 7, orthodontic internal thread 9 be for outside orthodontic
Screw thread 5 matches.
The clamping part 3 includes the convex conical surface 4 and orthodontic external screw thread 5；With spiral shell outside 4 adjacent orthodontic of the convex conical surface
One end of line 5 is connected with connection part 2；Wherein, the convex conical surface 4 is used for realizing precise locating function；
Further, the one end of the fixed part with positioning concave cone face 6 carries one end of the convex conical surface 4 with clamping part
It is mutually chimeric, adjust clamping part axial position by adjusting clamping part rotation angle.
Further, one end convex cone surface which area of the clamping part with the convex conical surface accounts for the 60% of total cylindrical surface.
The present invention has the following advantages：It can ensure to try using the high accuracy of alignment fixture coupling arrangement of testing machine of the present invention
To neutrality when testing part clamping, ensure that stress is allowed to force-bearing situation and is closer to along sample axis direction during the test for it
Actual condition, and then the preferably accuracy and reliability of guarantee test result.
Description of the drawings
Fig. 1 is the high centering clamp connection assembling schematic diagram of the present invention.
Fig. 2 is the high centering clamp connection assembling section of the present invention.
Fig. 3 is clamping part schematic diagram of the present invention.
Fig. 4 is clamping part axis of the present invention side schematic diagram.
Fig. 5 is fixed part axis side structure schematic diagram of the present invention.
Fig. 6 is connection part diagrammatic cross-section of the present invention.
Fig. 7 is connection part axis side structure schematic diagram of the present invention.
Figure label is described as follows：
Fixed part 1；Connection part 2；Clamping part 3；The convex conical surface 4；Orthodontic external screw thread 5；Position concave cone face 6；The outer spiral shell of anti-tooth
Line 7；The anti-tooth internal threads of 8-；9- orthodontic internal threads.
Specific implementation mode
Fig. 1 to Fig. 6 is please referred to, testing machine of the present invention includes fixed part 1, connection part with high accuracy of alignment fixture coupling arrangement
2 and clamping part 3.
Wherein fixed part 1, which includes end face, has the structure in positioning concave cone face 6 and the anti-tooth external screw thread close to positioning concave cone face
7, wherein concave cone face 6 is for realizing that precise positioning, anti-tooth external screw thread 7 carry one end phase of anti-tooth internal thread 8 with connection part 2
Even.Clamping part 3 includes that end face carries the convex conical surface 4 and the positive pitch thread 5 close to the convex conical surface, and wherein convex cone face 4 is to use
Realize precise locating function, positive pitch thread 5 is connected with the one end of connection part 2 with orthodontic internal thread 9, the convex conical surface 4 adds
Working hour, its cone surface which area accounted for the 60% of total cylinder area, by rotating 3 adjustable holding portion axial displacement of clamping part.Connection part 2
Including anti-tooth internal thread 8 and orthodontic internal thread 9, connection part 2 is a coupling sleeve as shown in fig. 7, by anti-8 He of tooth internal thread
Orthodontic internal thread 9 realizes the connection cooperation of two individual components fixed parts 1 and clamping part 3.
When testing machine of the present invention is tested with high accuracy of alignment fixture coupling arrangement, one end of fixed part 1 is fixed on examination
It tests on platform, one end of anti-tooth external screw thread 7 of the fixed part 1 with positioning concave cone face 6 and close to positioning concave cone face 6 and 2 band of connection part
There is one end of anti-tooth internal thread 8 to be connected, screw thread rotation suitable position is made to stop；Again by clamping part 3 with the convex conical surface 4 and tight
One end of the orthodontic external screw thread 5 of the adjacent convex conical surface 4 is connected with the one end of connection part 2 with orthodontic internal thread 9, makes convex cone face 4
It is mutually chimeric with concave cone face 6；Sample is mounted on another end link of clamping part 3, can be pressed from both sides by adjusting when sample is installed again
The axial position in portion 3 is held to adjust the horizontal deflection angle of sample, eliminates other the outer force effects of sample in addition to axial force；Use pin
Sample is coupled with 3 connecting-rod head of clamping part, sample installs at this time.
The above is the preferred embodiment of the present invention, can be used for material testing apparatus field, but not limited to this,
It is also covered by the occasion that other industry requires high accuracy of alignment connection between part.
Claims (3)
1. a kind of mechanics machine high accuracy of alignment fixture coupling arrangement, including fixed part, connection part and clamping part；It is special
Sign is：
The fixed part includes positioning concave cone face and anti-tooth external screw thread；Anti- tooth external screw thread one end close to positioning concave cone face and connection
One end of socket part is connected；Positioning concave cone face is used for realizing precise locating function；
Articulated connection includes anti-tooth internal thread and orthodontic internal thread, and connection part is a coupling sleeve, passes through anti-tooth internal thread
The connection cooperation of two individual components fixed parts and clamping part is realized with orthodontic internal thread；
The anti-tooth internal thread is for being matched with anti-tooth external screw thread, and orthodontic internal thread is for matching with orthodontic external screw thread
It closes；
The clamping part includes the convex conical surface and orthodontic external screw thread；With the externally threaded one end of the adjacent orthodontic of the convex conical surface
It is connected with connection part；The convex conical surface is used for realizing precise locating function.
2. the high accuracy of alignment fixture coupling arrangement of mechanics machine according to claim 1, it is characterised in that：It is described solid
It is mutually chimeric with the one end of clamping part with the convex conical surface to determine the one end of portion with positioning concave cone face, is rotated by adjusting clamping part
Angle adjusts clamping part axial position.
3. the high accuracy of alignment fixture coupling arrangement of mechanics machine according to claim 1, it is characterised in that：The folder
It holds one end convex cone surface which area of the portion with the convex conical surface and accounts for the 60% of total cylindrical surface；.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389672.6A CN108287109B (en) | 2017-12-21 | 2017-12-21 | High-centering-precision clamp connecting device for mechanical testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389672.6A CN108287109B (en) | 2017-12-21 | 2017-12-21 | High-centering-precision clamp connecting device for mechanical testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108287109A true CN108287109A (en) | 2018-07-17 |
| CN108287109B CN108287109B (en) | 2020-10-27 |
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ID=62832124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711389672.6A Active CN108287109B (en) | 2017-12-21 | 2017-12-21 | High-centering-precision clamp connecting device for mechanical testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108287109B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441136A (en) * | 2019-09-25 | 2019-11-12 | 吉林大学 | Stretching based on positive and negative pitch thread structure-torsion composite fixture |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448706A (en) * | 2003-04-03 | 2003-10-15 | 上海交通大学 | Method of testing pipe thread adaptor inner / external screw thread surface contact status distribution |
| CN202562804U (en) * | 2012-05-28 | 2012-11-28 | 江苏省沙钢钢铁研究院有限公司 | Connecting device used by hydraulic cylinder clamp of fatigue-testing machine |
| CN202752779U (en) * | 2012-06-19 | 2013-02-27 | 河北宣化工程机械股份有限公司 | Swing frame middle rib quick centring device of bulldozer traveling system |
| CN204992903U (en) * | 2015-10-12 | 2016-01-20 | 无锡市宏霸机电设备有限公司 | Two electric putter structures |
| CN105466761A (en) * | 2015-12-15 | 2016-04-06 | 浙江大学 | Automatic alignment device for metal tensile samples in low-temperature environment testing box |
| CN104274976B (en) * | 2013-07-10 | 2016-08-10 | 苏郁哲 | The wheel axle fixing structure of slide plate |
| CN206618607U (en) * | 2017-02-14 | 2017-11-07 | 广东省新材料研究所 | A kind of fixture for prepares coating bond strength test sample |
-
2017
- 2017-12-21 CN CN201711389672.6A patent/CN108287109B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448706A (en) * | 2003-04-03 | 2003-10-15 | 上海交通大学 | Method of testing pipe thread adaptor inner / external screw thread surface contact status distribution |
| CN202562804U (en) * | 2012-05-28 | 2012-11-28 | 江苏省沙钢钢铁研究院有限公司 | Connecting device used by hydraulic cylinder clamp of fatigue-testing machine |
| CN202752779U (en) * | 2012-06-19 | 2013-02-27 | 河北宣化工程机械股份有限公司 | Swing frame middle rib quick centring device of bulldozer traveling system |
| CN104274976B (en) * | 2013-07-10 | 2016-08-10 | 苏郁哲 | The wheel axle fixing structure of slide plate |
| CN204992903U (en) * | 2015-10-12 | 2016-01-20 | 无锡市宏霸机电设备有限公司 | Two electric putter structures |
| CN105466761A (en) * | 2015-12-15 | 2016-04-06 | 浙江大学 | Automatic alignment device for metal tensile samples in low-temperature environment testing box |
| CN206618607U (en) * | 2017-02-14 | 2017-11-07 | 广东省新材料研究所 | A kind of fixture for prepares coating bond strength test sample |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441136A (en) * | 2019-09-25 | 2019-11-12 | 吉林大学 | Stretching based on positive and negative pitch thread structure-torsion composite fixture |
| CN110441136B (en) * | 2019-09-25 | 2024-03-12 | 吉林大学 | Stretching-twisting composite clamp based on positive and negative thread structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108287109B (en) | 2020-10-27 |
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