CN208334063U - A kind of self-centering fixture of circular specimen - Google Patents
A kind of self-centering fixture of circular specimen Download PDFInfo
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- CN208334063U CN208334063U CN201821154557.0U CN201821154557U CN208334063U CN 208334063 U CN208334063 U CN 208334063U CN 201821154557 U CN201821154557 U CN 201821154557U CN 208334063 U CN208334063 U CN 208334063U
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- fixed plate
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- circular specimen
- arc fixture
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Abstract
The utility model discloses a kind of self-centering fixtures of circular specimen, including fixed plate and threaded rod, the corner of the fixed plate is provided with threaded hole, running through in the first sliding groove has the first arc fixture, the threaded rod is mounted on the inner surface of fixed plate, and the avris of fixed plate is provided with knob, and the surface of the translating cam is fixed with the second arc fixture, and second the top of arc fixture pass through second sliding slot and extend to the top of fixed plate, and second sliding slot is provided in the plate face of fixed plate.The self-centering fixture of the circular specimen; take full advantage of the advantage that screw-driven is combined with cam swing mechanism; realize that clamping is convenient; expand sample and prepares magnitude range; it is felt relieved by tightening 4 threaded holes to workbench, makes sample uniform force, pass through screw-driven; three pieces of fixtures can be achieved to draw close on fixation locus toward center or far from center, it is ensured that circular specimen can consolidate is fixed in tester platform.
Description
Technical field
The utility model relates to fretting wear technical field, specially a kind of self-centering fixture of circular specimen.
Background technique
Cutter is typically necessary in production and carries out wear-resisting test to cutter using friction and wear test instrument, and cutter exists
When carrying out wear-resisting test, generally needs to be clamped fixation to tool work piece using fixture, prevent cutter from going out during the test
The case where now loosening, but existing fixture cardinal principle is all that directly cutter is fixed using simple components such as bolts,
When testing wear-resisting situation, firm fixation can not be carried out for round piece, there are stress for existing clamping sample gasket not
Uniformly, and the existing clamping gasket for circular specimen is all fixed size, and flexibility is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of self-centering fixtures of circular specimen, to solve in above-mentioned background technique
It proposes that existing fixture cardinal principle is all that directly cutter is fixed using simple components such as bolts, is testing wear-resisting situation
When, firm fixation can not be carried out for round piece, existing clamping sample gasket is there are discontinuity, and existing needle
Clamping gasket to circular specimen is all fixed size, the poor problem of flexibility.
To achieve the above object, the utility model provides the following technical solutions: a kind of self-centering fixture of circular specimen, packet
Fixed plate and threaded rod are included, the corner of the fixed plate is provided with threaded hole, and first sliding groove is provided in the plate face of fixed plate, institute
It states through there is the first arc fixture in first sliding groove, the bottom end of the first arc fixture is provided with through-hole, and passes through in first through hole
Be installed with it is double stretch swing rod, double corners for stretching swing rod are nested in the periphery of vertical pivot, and one end of vertical pivot is welded on fixed plate
Surface, and double bottom ends for stretching swing rod are equipped with roller, and translating cam, and the avris of translating cam are provided in the fixed plate
Face is provided with cambered surface, and the threaded rod is mounted on the inner surface of fixed plate, and the avris of fixed plate is provided with knob, the movement
The surface of cam is fixed with the second arc fixture, and the top of the second arc fixture passes through second sliding slot and extends to the upper of fixed plate
Side, and second sliding slot is provided in the plate face of fixed plate.
Preferably, the thickness of the first arc fixture and the thickness of first sliding groove match, and first sliding groove is arc knot
Structure, and both to there are two distributions.
Preferably, described double to stretch swing rod and through-hole is to be slidably connected, and double stretch swing rod and vertical pivot composition rotating mechanism.
Preferably, the cambered surface is symmetricly set on there are two translating cam avris, and the surface on the surface of cambered surface and roller
It fits.
Preferably, the translating cam and threaded rod are threadedly coupled, and threaded rod and fixed plate form rotating mechanism, and screw thread
The avris that one end of bar passes through fixed plate is connected with knob.
Preferably, the width of the second arc fixture and the thickness of second sliding slot match, and the two is to be slidably connected.
Compared with prior art, the utility model has the beneficial effects that the self-centering fixture of the circular specimen, makes full use of
The advantage that screw-driven is combined with cam swing mechanism, fixture is assembled in cam swing mechanism and cam, realizes dress
It is convenient to press from both sides, and expands sample and prepares magnitude range, is felt relieved by tightening 4 threaded holes to workbench, make sample uniform force,
On the same parallel surface of workbench, and it need to only turn a knob and can operate, by screw-driven, it can be achieved that three pieces of folders
Tool is drawn close toward center on fixation locus or far from center, and structure design is more reasonable, it is ensured that circular specimen can consolidate consolidates
It is scheduled in tester platform.
Detailed description of the invention
Fig. 1 is the utility model positive structure schematic；
Fig. 2 is the utility model structure schematic diagram；
Fig. 3 is enlarged structure schematic diagram at A in the utility model Fig. 2；
Fig. 4 is enlarged structure schematic diagram at B in the utility model Fig. 2.
In figure: 1, fixed plate；2, threaded hole；3, first sliding groove；4, the first arc fixture；5, through-hole；6, double to stretch swing rod；7,
Vertical pivot；8, roller；9, cambered surface；10, translating cam；11, threaded rod；12, knob；13, the second arc fixture；14, second sliding slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of self-centering fixture of circular specimen, including
Fixed plate 1, threaded hole 2, first sliding groove 3, the first arc fixture 4, through-hole 5, it is double stretch swing rod 6, vertical pivot 7, roller 8, cambered surface 9, move
Moving cam 10, threaded rod 11, knob 12, the second arc fixture 13 and second sliding slot 14, the corner of fixed plate 1 are provided with threaded hole
2, and first sliding groove 3 is provided in the plate face of fixed plate 1, running through in first sliding groove 3 has the first arc fixture 4, the first arc fixture 4
Bottom end be provided with through-hole 5, and in first through hole 5 through have it is double stretch swing rod 6, double corners for stretching swing rod 6 are nested in the outer of vertical pivot 7
It encloses, and one end of vertical pivot 7 is welded on the surface of fixed plate 1, and double bottom ends for stretching swing rod 6 are equipped with roller 8, in fixed plate 1
It is provided with translating cam 10, and the flank side surface of translating cam 10 is provided with cambered surface 9, threaded rod 11 is mounted on the interior table of fixed plate 1
Face, and the avris of fixed plate 1 is provided with knob 12, the surface of translating cam 10 is fixed with the second arc fixture 13, and the second arc
The top of clamp 13 passes through the top that second sliding slot 14 extends to fixed plate 1, and second sliding slot 14 is provided with fixed plate 1
In plate face.
The thickness of first arc fixture 4 and the thickness of first sliding groove 3 match, and first sliding groove 3 is arcuate structure, and the two
To there are two distributions, two the first arc fixtures 4 can turn on simultaneously under double drives for stretching swing rod 6 or at center in two sides
Gather.
It is double stretch swing rod 6 and through-holes 5 be slidably connected, and it is double stretch swing rod 6 and vertical pivot 7 forms rotating mechanism, double swing rods 6 of stretching exist
When rotating on vertical pivot 7, double in through-hole 5 stretch swing rod 6 and can press against the first arc fixture 4 to move in first sliding groove 3.
Cambered surface 9 is symmetricly set on there are two 10 avris of translating cam, and the surface of cambered surface 9 and the surface of roller 8 fit.
Translating cam 10 and threaded rod 11 are threadedly coupled, and threaded rod 11 and fixed plate 1 form rotating mechanism, and threaded rod 11
One end pass through the avris of fixed plate 1 and be connected with knob 12, the constant speed from top to bottom of translating cam 10 is driven by screw-driven
When mobile, the roller 8 of two swing rod lower ends is contacted with the cambered surface 9 at left and right sides of cam respectively, under the control of cam, two swing rods point
It is not that fixed point makees dead axle swing around vertical pivot 7.
The width of second arc fixture 13 and the thickness of second sliding slot 14 match, and the two is to be slidably connected, threaded rod
11 rotation can drive the synchronizing moving on threaded rod 11 of translating cam 10, then drive the second arc fixture 13 in second sliding slot
Synchronizing moving in 14.
Fixed plate 1: being mounted in tester platform using bolt and threaded hole 2 by working principle first, then circle is tried
Sample is placed in fixed plate 1, as shown in Figs 1-4, turns knob 12 and threaded rod 11 is driven to rotate synchronously in fixed plate 1, screw thread
The rotation of bar 11 can drive the constant speed movement from top to bottom of translating cam 10 by screw-driven, translating cam 10 when moving,
Two double rollers 8 for stretching 6 lower end of swing rod can be made to contact respectively with the cambered surface 9 of 10 left and right sides of translating cam, in translating cam 10
Control under, two swing rods are that fixed point makees dead axle swing rotating around vertical pivot 7, double when stretching swing rod 6 and swinging, and double in through-hole 5 stretch
Swing rod 6 can press against the first arc fixture 4 and move in first sliding groove 3, while the upper end of swing rod itself also can be in through-hole 5 back and forth
Sliding, then makes two the first arc fixtures 4 do opposite circular motion, the rotation of threaded rod 11 can drive translating cam 10 to exist
Synchronizing moving on threaded rod 11 drives the second arc fixture 13 synchronizing moving in second sliding slot 14, then forms self-centering
Three positioning fixture claws of fixture, to realize that draw close to centering or simultaneously far from the clamping felt relieved simultaneously at 3 points.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of self-centering fixture of circular specimen, including fixed plate (1) and threaded rod (11), it is characterised in that: the fixation
The corner of plate (1) is provided with threaded hole (2), and first sliding groove (3) are provided in the plate face of fixed plate (1), the first sliding groove (3)
In through there is the first arc fixture (4), the bottom end of the first arc fixture (4) is provided with through-hole (5), and in first through hole (5)
Through have it is double stretch swing rod (6), double corners for stretching swing rod (6) are nested in the periphery of vertical pivot (7), and one end of vertical pivot (7)
It is welded on the surface of fixed plate (1), and double bottom ends for stretching swing rod (6) are equipped with roller (8), setting in the fixed plate (1)
Have translating cam (10), and the flank side surface of translating cam (10) is provided with cambered surface (9), the threaded rod (11) is mounted on fixed plate
(1) inner surface, and the avris of fixed plate (1) is provided with knob (12), the surface of the translating cam (10) is fixed with second
Arc fixture (13), and the top of the second arc fixture (13) passes through the top that second sliding slot (14) extend to fixed plate (1), and
And second sliding slot (14) is provided in the plate face of fixed plate (1).
2. a kind of self-centering fixture of circular specimen according to claim 1, it is characterised in that: the first arc fixture
(4) thickness of thickness and first sliding groove (3) matches, and first sliding groove (3) is arcuate structure, and both to being distributed with two
It is a.
3. a kind of self-centering fixture of circular specimen according to claim 1, it is characterised in that: described pair is stretched swing rod (6)
It is to be slidably connected, and double swing rod (6) and vertical pivots (7) stretched forms rotating mechanism with through-hole (5).
4. a kind of self-centering fixture of circular specimen according to claim 1, it is characterised in that: the cambered surface (9) is symmetrical
Setting is there are two translating cam (10) avris, and the surface of cambered surface (9) and the surface of roller (8) fit.
5. a kind of self-centering fixture of circular specimen according to claim 1, it is characterised in that: the translating cam (10)
It is threadedly coupled with threaded rod (11), threaded rod (11) and fixed plate (1) form rotating mechanism, and one end of threaded rod (11) passes through
The avris of fixed plate (1) is connected with knob (12).
6. a kind of self-centering fixture of circular specimen according to claim 1, it is characterised in that: the second arc fixture
(13) thickness of width and second sliding slot (14) matches, and the two is to be slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154557.0U CN208334063U (en) | 2018-07-20 | 2018-07-20 | A kind of self-centering fixture of circular specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154557.0U CN208334063U (en) | 2018-07-20 | 2018-07-20 | A kind of self-centering fixture of circular specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208334063U true CN208334063U (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821154557.0U Active CN208334063U (en) | 2018-07-20 | 2018-07-20 | A kind of self-centering fixture of circular specimen |
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| CN (1) | CN208334063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911714A (en) * | 2020-07-08 | 2022-01-11 | 南京药石科技股份有限公司 | Transmission mechanism and storage equipment |
-
2018
- 2018-07-20 CN CN201821154557.0U patent/CN208334063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911714A (en) * | 2020-07-08 | 2022-01-11 | 南京药石科技股份有限公司 | Transmission mechanism and storage equipment |
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