CN209446386U - Adjustable hardness test fixture - Google Patents
Adjustable hardness test fixture Download PDFInfo
- Publication number
- CN209446386U CN209446386U CN201920050453.3U CN201920050453U CN209446386U CN 209446386 U CN209446386 U CN 209446386U CN 201920050453 U CN201920050453 U CN 201920050453U CN 209446386 U CN209446386 U CN 209446386U
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- support frame
- clamping
- handed screw
- fixture seat
- hole
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Abstract
The utility model discloses a kind of adjustable hardness test fixtures, pedestal is provided with above chassis, two sides on pedestal are symmetrically installed with left support frame and right support frame, and positioning disk is connected at the top of left support frame and right support frame, and the section of clamping fixture seat is in major arc arch, guide groove is provided in clamping fixture seat, the periphery in clamping fixture seat middle section is set with sliding sleeve, and the upper surface of sliding sleeve is provided with objective table, connects geared surface fixture block on left-handed screw, it is connected with plane fixture block in right handed screw, is respectively arranged with adjusting screw rod on column.The utility model, which can be realized, is fixed the measured workpiece of any shape, it is stable, the test for meeting hardness solves irregular measured workpiece and carries out the phenomenon that generating bias because being not fixed firmly when hardness test, so as to cause the big problem of measurement hardness and actual hardness deviation.The working efficiency that reviewer can be greatlyd improve guarantees the accuracy and stability of micro-hardness testing, has wide applicability.
Description
Technical field
The utility model relates to mixcrohardness test equipment technical fields, are specifically related to a kind of adjustable hardness test folder
Tool.
Background technique
Hardness test, must can not during failure analysis and quality inspection as a kind of conventional Physico-chemical tests means
It is few.The hardness of material is that material resists local deformation, especially plastic deformation, the ability of impression or scratch, is to measure material softer
One important performance indexes of hard degree, are the integrated performance indexs of the mechanics such as elastic properties of materials, plasticity, intensity and toughness.And it shows
One of which of the microhardness as hardness test, overlay coating, local deformation, abnormal structure, hardness gradient, sheet metal specimens,
Small size sample etc. has irreplaceable role, is usually used in the hardness determination of various microcells.The metal of hardness test tries
Sample surface smoothness to be measured is more demanding, and only guaranteed penetrator is vertical with specimen surface, and test data is only really,
Just there is confidence level.In the research and relevant analytic process of material, usually there is the specimen surface tested and working face not
Parallel situation, if directly beating hardness in specimen surface will affect the accuracy of test value.
But reality measurement in, be frequently encountered some irregular parts and need to measure, due to measured workpiece shape not
In the placement test stand that rule can not be stable, in pressure measurement process, be easy to happen skew, eccentric or even part sphere shape or
Person's globoid part can not be measured directly at all.The solution typically now taken be by make cuboid inlay sample into
Row measurement.It bothers since sample makes, and is partially heat-treated after making, can be joined during heat treatment due to processing
The case where several differences leads to the error of its hardness, equally has measurement hardness number distortion, since special-shaped sample is in test process
In to be difficult to ensure its surface to be measured vertical with the holding of the ram axis of experimental rig, therefore often will appear error in an experiment, shadow
Work quality is rung, operating process is cumbersome, and pretightning force is inadequate, time-consuming and laborious.
Utility model content
For the problems mentioned above in the background art, the utility model provides a kind of adjustable hardness test fixture, can
Realization is fixed the measured workpiece of any shape, meets the test of hardness；Irregular measured workpiece is solved to carry out firmly
Due to being not fixed firmly the bias-pressure phenomenon being easy to produce when degree test, lead to measure hardness and the big problem of actual hardness deviation；Energy
The working efficiency for enough greatling improve reviewer guarantees the accuracy and stability of micro-hardness testing, has extensive suitable
The property used.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions: adjustable hardness test fixture, including
Chassis and clamping fixture seat are provided with pedestal above the chassis, and the two sides on pedestal are symmetrically installed with left support frame and right support frame,
The middle part of left support frame and right support frame is correspondingly arranged on through-hole, and the clamping fixture seat is through through-hole；Left support frame and right branch
Positioning disk is connected at the top of support, the centre of positioning disk is provided with location hole；The both ends of the clamping fixture seat are cylindrical shape, intermediate
The section of section is in major arc arch, is equipped with guide groove in major arc arch, the upper surface of clamping fixture seat is provided with objective table, and clamping fixture seat middle section is opposite
The periphery of objective table is set with sliding sleeve, and the guide groove of lower section is provided with left-handed screw on the left of objective table, connects on left-handed screw with teeth
Face fixture block；The guide groove of objective table lower right-hand side is provided with right handed screw, is connected with plane fixture block in right handed screw, left-handed screw and
Right handed screw is each passed through the through-hole in the cylinder of clamping fixture seat both ends, and inner end is connected by the way that coupling sleeve is opposite；The both ends of clamping fixture seat
Inside and left-handed screw and right handed screw junction are installed with retaining ring respectively, and the outer end of left-handed screw and right handed screw is respectively connected with
Rotating handle；
Clamping fixture seat two sides are provided with clamping seats, and wherein the clamping seats of side are equipped with handle screw and the clamping seats of the side
Top is equipped with column, and the clamping seats both sides equipped with clamping screw and the side on the clamping seats of the other side is provided with column, on column
It is respectively arranged with adjusting screw rod.
Further, the flank of tooth fixture block is T-shaped, and upper part is equipped with shape tooth on one side, lower part be provided with threaded hole and with it is left-handed
Screw rod connection.
Further, the plane fixture block is T-shaped, and upper part is plane, and lower part is provided with threaded hole and connects with right handed screw
It connects.
Further, the column is at least three, and mutual spacing is uniformly distributed.
Further, the through-hole of the left support frame and through-hole diameter of right support frame is identical and same axis, the through-hole with
Clamping fixture seat both ends cylinder clearance fit.
Compared with prior art, the utility model clamping force is big, easy to operate, stable working state, is suitable for a variety of shapes
The hardness fixture of shape and size, structure novel, design are reasonable；It can be realized and the measured workpiece of any shape compress admittedly
It is fixed, meet the test request of hardness, solves and generate bias because being not fixed firmly when irregular measured workpiece carries out hardness test
The phenomenon that, so as to cause the big problem of measurement hardness and actual hardness deviation.Test result accuracy is high, easy to operate, can be fast
Height between velocity modulation section sample to be tested and pressure head reduces experiment to keep the tested surface of sample vertical with ram axis holding
Error can greatly improve the working efficiency of reviewer, guarantee the accuracy and stability of micro-hardness testing, have wide
General applicability.
Detailed description of the invention
Fig. 1 is the positive schematic perspective view of the utility model；
Fig. 2 is the reversed schematic perspective view that the utility model removes positioning disk 5；
Fig. 3 is the top view that the utility model removes positioning disk 5；
Fig. 4 is the vertical axial diagrammatic cross-section of 2 installation condition of clamping fixture seat in the utility model；
Fig. 5 be in Fig. 4 A-A to schematic cross-section；Fig. 6 is the structural schematic diagram of plane fixture block 20 in the utility model；
Fig. 7 is the structural schematic diagram of flank of tooth fixture block 11 in the utility model；
Fig. 8 is the schematic perspective view of flank of tooth fixture block 11 in the utility model；
In figure: the chassis 1-, 2- clamping fixture seat, 3- rotating handle, 4- left support frame, 5- positioning disk, 6- location hole, 7- right support
Frame, 8- column, 9- pedestal, 10- sliding sleeve, 11- flank of tooth fixture block, 12- adjusting screw rod, 13- clamping seats, 14- clamping screw, 15- hand
Handle screw rod, 16- right handed screw, 17- guide groove, 18- objective table, 19- left-handed screw, 20- plane fixture block, 21- coupling sleeve, 22- gear
Circle.
Specific embodiment
Below in conjunction with drawings and examples, the utility model is described in further detail.Referring to Fig. 1 to Fig. 8, adjustable hardness is surveyed
Fixture, including a chassis 1 and a clamping fixture seat 2 are tried, circle is in chassis 1 and is provided with circular pedestal 9 above, on pedestal 9
Two sides be symmetrically installed with left support frame 4 and right support frame 7, the middle part of left support frame 4 and right support frame 7 is correspondingly arranged on circle
Shape through-hole, clamping fixture seat 2 is through through-hole；Positioning disk 5 has been bolted in the top of left support frame 4 and right support frame 7, positioning
The centre of disk 5 is provided with location hole 6；The both ends of clamping fixture seat 2 are cylindrical shape, and the section of interlude is in major arc arch, major arc arch
Interior to be equipped with guide groove 17, the upper surface of clamping fixture seat 2 is provided with an objective table 18, outer with respect to objective table 18 in the middle section of clamping fixture seat 2
It is set with a sliding sleeve 10 week, the guide groove 17 of 18 left side lower section of objective table is provided with left-handed screw 19, connects on left-handed screw 19
Geared surface fixture block 11；The guide groove 17 of 18 lower right-hand side of objective table is provided with right handed screw 16, is connected with plane in right handed screw 16
Fixture block 20.Left-handed screw 19 and right handed screw 16 are each passed through the through-hole in 2 both ends cylinder of clamping fixture seat, and left-handed screw 19 and the right side
The inner end for revolving screw rod 16 is connected by the way that coupling sleeve 21 is opposite；Both ends inside and left-handed screw 19 and the right handed screw 16 of clamping fixture seat 2
Junction is installed with retaining ring 22 respectively, and the outer end of left-handed screw 19 and right handed screw 16 is respectively connected with rotating handle 3.2 liang of clamping fixture seat
Outside is provided with clamping seats 13, and wherein the clamping seats 13 of side are equipped with handle screw 15 and the top of the clamping seats 13 of the side is set
There is column 8,13 both sides of clamping seats equipped with clamping screw 14 and the side is provided with column 8, column 8 on the clamping seats 13 of the other side
On be respectively arranged with adjusting screw rod 12.Flank of tooth fixture block 11 is T-shaped, and upper part is equipped with shape tooth on one side, lower part be provided with threaded hole and with a left side
Screw rod 19 is revolved to connect.Plane fixture block 20 is T-shaped, and upper part is plane, and lower part is provided with threaded hole and connect with right handed screw 16.
Column 8 is at least three, and mutual spacing is uniformly distributed.The through-hole of left support frame 4 it is identical as the through-hole diameter of right support frame 7 and
Same axis, the through-hole and 2 both ends cylinder clearance fit of clamping fixture seat.
Embodiment: the utility model provides following preferable case study on implementation: adjustable hardness test fixture, using high strength steel
The chassis 1 of material production, pedestal that bottom surface is equipped with structure cylindrical, that diameter is about 8mm, and by the pedestal and firmly
Degree equipment platform is connected.Chassis 1 is provided with pedestal 9 above, and pedestal 9 is in cylindrical structure, and diameter is 70mm, is highly
26mm, the two sides on pedestal 9 are symmetrically installed with left support frame 4 and right support frame 7, and left support frame 4 and the height of right support frame 7 are equal
It for 60mm, is used to support positioning disk 5 and installs fixture seat 2(is as shown in Figure 1).The through-hole diameter of left support frame 4 and right support frame 7
Identical and same axis, the through-hole are round hole, through-hole and 2 both ends cylinder clearance fit of clamping fixture seat, and clamping fixture seat 2 through a left side
The through-hole (as shown in Figure 1, Figure 2 and Figure 3) of support frame 4 and right support frame 7.The top of left support frame 4 and right support frame 7 is fixed to be connected
It is connected to positioning disk 5, the diameter of positioning disk 5 is 80mm, and the centre of positioning disk 5 is provided with location hole 6, and 6 diameter of location hole is 50mm,
Location hole 6 is passed through convenient for hardness equipment, and hardness test is carried out to sample to be tested.The both ends of clamping fixture seat 2 are cylindrical shape, interlude
Section is in major arc arch, is equipped with guide groove 17 in major arc arch, the upper surface of clamping fixture seat 2 is provided with objective table 18,2 middle section phase of clamping fixture seat
It is as shown in Figure 5 that sliding sleeve 10(is set with to the periphery of objective table 18), the center of location hole 6 and the center of objective table 18 are same perpendicular
On straight line, keep the tested surface of sample to be tested vertical with the holding of the ram axis of hardness equipment, reduces experimental error.Objective table 18 is left
The guide groove 17 of side-lower is provided with left-handed screw 19, connects geared surface fixture block 11 on left-handed screw 19；18 lower right-hand side of objective table
Guide groove 17 be provided with right handed screw 16, plane fixture block 20, flank of tooth fixture block 11(such as Fig. 7 and Fig. 8 institute are connected in right handed screw 16
Show) and plane fixture block 20(it is as shown in Figure 6) material be all carbon constructional quality steel.Left-handed screw 19 and right handed screw 16 are distinguished
Across the through-hole of the cylinder at 2 both ends of clamping fixture seat, and inner end is connected by the way that coupling sleeve 21 is opposite；It is on the inside of the both ends of clamping fixture seat 2 and left
Rotation screw rod 19 and 16 junction of right handed screw are separately installed with retaining ring 22, and the outer end of left-handed screw 19 and right handed screw 16 is all connected with
Have rotating handle 3(as shown in Figure 3 and Figure 4) convenient for by there is the rotation of rotating handle 3 of annular knurl to drive flank of tooth fixture block 11 to external rolling
It is moved left and right with plane fixture block 20, it is convenient that clamping and loose unloading are carried out to sample to be tested.
Two outsides of clamping fixture seat 2 are respectively arranged with clamping seats 13, and wherein the clamping seats 13 of side are equipped with handle screw 15,
And the top of the clamping seats 13 of the side is fixed equipped with column 8, can be played by rotating handle screw rod 15 and carry out position to sliding sleeve 10
Fixed effect.13 both sides of clamping seats equipped with clamping screw 14 and the side on the clamping seats 13 of the other side is provided with column 8, stands
It is respectively arranged with adjusting screw rod 12 on column 8, sample to be tested is fixed by rotating three adjusting screw rods 12, forms triangle and stablizes
Structure improves the stability and detection accuracy for playing hardness operation.Flank of tooth fixture block 11 is T-shaped, and upper part is equipped with shape tooth on one side, successively
It is set as in equilateral triangle, rectangle, isosceles trapezoid and isosceles triangular structure, and their size is different, is applicable in
In the hardness sample to be tested of sizes and shape, stringency of test is high, easy to operate, be adjusted sample to be tested and pressure head it
Between height.11 lower part of flank of tooth fixture block is provided with threaded hole and connect (as shown in Figure 7 and Figure 8) with left-handed screw 19.Plane fixture block
20 is T-shaped (as shown in Figure 6), and upper part is plane, and lower part is provided with threaded hole and connect with right handed screw 16.Column 8 is at least
It is three, and mutual spacing is uniformly distributed.
The utility model is suitable for clamping the tested sample of a variety of shapes and sizes, in use, the pedestal on chassis 1 is installed
In the sample platform of hardness equipment, first by three adjusting screw rods 12 of rotation, handle screw 15 and clamping screw 14 to
Test specimens are clamped in the middle position on objective table 18, can make the objective table 18 on clamping fixture seat 2 by the rotation of clamping fixture seat 2
Horizontal plane keeps optimal gradient, guarantees that the tested surface of sample to be tested is vertical with ram axis holding, reduces experimental error.It is left
It revolves screw rod screw rod 19 and right handed screw 16 uses right-and-left threaded mode, objective table 18 can be made to press from both sides under vibrating state tighter,
Hardness penetrator is pressed in by location hole 6 to carry out accurate and reliable, comprehensive hardness of beating and operates on sample to be tested, test result is accurate
Property it is high, greatly improve the working efficiency of reviewer, guarantee the accuracy and stability of micro-hardness testing, have extensive
Applicability.
Claims (5)
1. adjustable hardness test fixture, including chassis (1) and clamping fixture seat (2), which is characterized in that the chassis (1) is arranged above
Have pedestal (9), the two sides on pedestal (9) are symmetrically installed with left support frame (4) and right support frame (7), left support frame (4) He Youzhi
The middle part of support (7) is correspondingly arranged on through-hole, and the clamping fixture seat (2) is through through-hole；Left support frame (4) and right support frame
(7) it is connected at the top of positioning disk (5), the centre of positioning disk (5) is provided with location hole (6)；The both ends of the clamping fixture seat (2) are
Cylindrical shape, the section of interlude are in major arc arch, are equipped with guide groove (17) in major arc arch, the upper surface of clamping fixture seat (2) is provided with load
Object platform (18), clamping fixture seat (2) middle section are set with sliding sleeve (10) with respect to the periphery of objective table (18), lower section on the left of objective table (18)
Guide groove (17) is provided with left-handed screw (19), connects geared surface fixture block (11) on left-handed screw (19)；Under on the right side of objective table (18)
The guide groove (17) of side is provided with right handed screw (16), and plane fixture block (20) are connected in right handed screw (16)；Left-handed screw (19)
It is each passed through the through-hole in the cylinder of clamping fixture seat (2) both ends with right handed screw (16), and inner end is connected by the way that coupling sleeve (21) are opposite；
It is installed with respectively retaining ring (22) on the inside of the both ends of clamping fixture seat (2) with left-handed screw (19) and right handed screw (16) junction, it is left-handed
The outer end of screw rod (19) and right handed screw (16) is respectively connected with rotating handle (3)；
Clamping fixture seat (2) two sides are provided with clamping seats (13), and wherein the clamping seats (13) of side are equipped with handle screw (15) and should
The top of the clamping seats (13) of side is equipped with column (8), equipped with clamping screw (14) and the side on the clamping seats (13) of the other side
Clamping seats (13) both sides is provided with column (8), and adjusting screw rod (12) are respectively arranged on column (8).
2. adjustable hardness test fixture according to claim 1, which is characterized in that the flank of tooth fixture block (11) is T-shaped,
Top is equipped with shape tooth on one side, and lower part is provided with threaded hole and connect with left-handed screw (19).
3. adjustable hardness test fixture according to claim 1, which is characterized in that the plane fixture block (20) is T-shaped,
Top is plane, and lower part is provided with threaded hole and connect with right handed screw (16).
4. adjustable hardness test fixture according to claim 1, which is characterized in that the column (8) is at least three, and
Mutual spacing is uniformly distributed.
5. adjustable hardness test fixture according to claim 1, which is characterized in that the through-hole of the left support frame (4) with
The through-hole diameter of right support frame (7) is identical and same axis, the through-hole and clamping fixture seat (2) both ends cylinder clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050453.3U CN209446386U (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050453.3U CN209446386U (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446386U true CN209446386U (en) | 2019-09-27 |
Family
ID=68017526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920050453.3U Expired - Fee Related CN209446386U (en) | 2019-01-14 | 2019-01-14 | Adjustable hardness test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209446386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540660A (en) * | 2019-01-14 | 2019-03-29 | 南昌航空大学 | Adjustable hardness test fixture |
-
2019
- 2019-01-14 CN CN201920050453.3U patent/CN209446386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540660A (en) * | 2019-01-14 | 2019-03-29 | 南昌航空大学 | Adjustable hardness test fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 Termination date: 20220114 |