CN205049412U - Microhardness test fixture - Google Patents
Microhardness test fixture Download PDFInfo
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- CN205049412U CN205049412U CN201520784236.9U CN201520784236U CN205049412U CN 205049412 U CN205049412 U CN 205049412U CN 201520784236 U CN201520784236 U CN 201520784236U CN 205049412 U CN205049412 U CN 205049412U
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- pedestal
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- slippage
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Abstract
The utility model provides a microhardness test fixture, which comprises a base, gear, two lead screws, two slide clamp splice and two can dismantle the clamping piece, the base is long square frame, the base both sides have the guided way, be the base cavity in the middle of the framework, two lead screws are arranged side by side in the base cavity and are rotated and support on the base, it revolves to opposite first screw thread section and second screw thread section all to have two on two lead screws, the gear dress is in the base cavity, gear includes adjust knob, driving gear and two driven gear, slide the clamp splice both sides respectively with the base corresponding guided way sliding fit in both sides, the first screw thread section screw -thread fit of slide clamp splice and two lead screws, the second screw thread section screw -thread fit of another and two lead screws, can dismantle the clamping piece fixes respectively at corresponding slide clamp splice upper portion and mutual disposition, the lower part of two clamp splices that slide all has the centre gripping with the groove of slitting. The utility model discloses can make things convenient for centre gripping thin slice, slice cladding material sample and cylindrical sample.
Description
Technical field
The utility model belongs to micro-hardness testing field, especially relates to the test fixture of sheet metal specimens, sheet coating sample and cylindrical sample microhardness.
Background technology
Hardness test is as a kind of Physico-chemical tests means of routine, essential in failure analysis and quality inspection process.And microhardness is as the wherein one of hardness test, in overlay coating, local deformation, abnormal structure, hardness gradient, sheet metal specimens, small size sample etc., there is irreplaceable effect, be usually used in the hardness determination of various microcell.Before test, first sample to be tested being made reflective abrasive disc, be placed on the objective table of microhardness testers, in order to ensure the accuracy of hardness test, tested surface must be made parallel with objective table.For sheet metal specimens and sheet coating (being namely made up of flat substrates and coating) sample, the general corner that detects comprises the several respects such as sheet thickness, thin slice hardness, thickness of coating and coating hardness, and hardness records by cross section or surperficial two places; Usually, the former can directly detect the thickness measuring face of sheet metal specimens and sheet coating sample, and the latter needs sample preparation again.Therefore, reviewer tends to select the first method of testing more.In addition, for the hardness test of the face of cylinder, utilize a kind of V-shape groove to carry out holding workpiece at present, like this, tester must prepare the V-type fixture of multiple different size according to the size of cylindrical sample more.
Summary of the invention
The purpose of this utility model is to provide a kind of micro-hardness testing fixture that conveniently can clamp sheet metal specimens, sheet coating sample and cylindrical sample.
The technical scheme realizing the utility model object is: a kind of micro-hardness testing fixture, comprise pedestal, cogwheel gearing, two screw mandrels, two slippage fixture blocks and two detachable intermediate plates, described pedestal is rectangle framework, pedestal both sides have guided way, be base cavity in the middle of framework, described two screw mandrels to be arranged in parallel in base cavity and to be rotatably supported on pedestal, two screw mandrels all have the first contrary thread segment of two rotation directions and the second thread segment, described cogwheel gearing is contained in base cavity, cogwheel gearing comprises adjusting knob, driving gear and two follower gears, described adjusting knob is rotatably supported in one end of pedestal and fixes with driving gear, two follower gears are separately fixed on corresponding screw mandrel, driving gear engages with two follower gears, the guided way that the both sides of described slippage fixture block are corresponding to pedestal both sides is respectively slidably matched, one in two slippage fixture blocks with the first thread segment threaded engagement of two screw mandrels, second thread segment threaded engagement of another and two screw mandrels, described two detachable intermediate plates are separately fixed at corresponding slippage fixture block top and positioned opposite, the bottom of described two slippage fixture blocks all has clamping slot.
Described pedestal is fixedly formed by spill skeleton frame and plate shape seat.
Described screw mandrel one end is rotatably supported on the spill skeleton frame of pedestal by bearing, and the other end is rotatably supported in the pilot hole on plate shape seat, and described follower gear is fixed by key or interference fit and screw mandrel.
Described detachable intermediate plate is fixed on the mount pad of corresponding slippage fixture block by hexagon socket head cap screw, and one end of described detachable intermediate plate is straight together, and the other end has inclined-plane, after two detachable intermediate plates close up, forms V-type clamp groove between inclined-plane.
The guided way of described pedestal both sides is T-shaped rail, and the both sides of described slippage fixture block have chute, and chute coordinates with guided way.
When the utility model uses, if sample to be tested is sheet metal specimens or sheet coating sample, one end that then detachable intermediate plate is straight together upward, then the utility model is inverted on horizontal stand, if the coating tranverse sectional thickness establishing criteria of sheet metal specimens tranverse sectional thickness or sheet coating sample can meet micro-hardness testing requirement, so by the cross section to be measured of sheet metal specimens or sheet coating sample down through the gap two screw mandrels, and it is clamped, the stability of the depth of parallelism between the tested surface of sample and objective table and sample to be tested can be ensured; If the coating tranverse sectional thickness of sheet metal specimens tranverse sectional thickness or sheet coating sample is too little and establishing criteria can not meet micro-hardness testing requirement, then this sheet metal specimens or sheet coating sample can be placed in the clamping slot of slippage fixture block bottom to clamp; In addition, if sample to be tested is cylindrical sample, then the one end on detachable intermediate plate inclined-plane upward, the utility model is just being placed on horizontal stand, and according to the size of cylindrical sample outside dimension to be measured, regulate the spacing between two detachable intermediate plates, be then positioned over by cylindrical sample in the V-type clamp groove formed between detachable intermediate plate inclined-plane, the cylindrical sample solving the various outer diameter of traditional method needs the problem of multiple size fixture.The utility model is compared with V-shape groove fixture with traditional single-screw mandrel, greatly can improve the work efficiency of reviewer, ensures accuracy and the stability of micro-hardness testing.
Accompanying drawing explanation
Fig. 1 is the structure front elevation of micro-hardness testing fixture of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4, Fig. 5 are the composition diagram of the pedestal in Fig. 3;
Fig. 6 is the structural representation of the screw mandrel in Fig. 3;
Fig. 7 is the structural representation of the cogwheel gearing in Fig. 3;
Fig. 8 is the right view of Fig. 7;
Fig. 9 is the structural representation of a slippage fixture block in Fig. 1;
Figure 10 is the left view of Fig. 9;
Figure 11 is the structural representation of a detachable intermediate plate in Fig. 1;
Figure 12 is the left view of Figure 11.
Embodiment
The embodiment provided below in conjunction with accompanying drawing is described in further detail the utility model.
As shown in figs. 1-12, a kind of micro-hardness testing fixture, comprise pedestal 1, cogwheel gearing 3, two screw mandrels 4, two slippage fixture blocks 5 and two detachable intermediate plates 6, described pedestal 1 is rectangle framework, pedestal 1 both sides have guided way 1-4, be base cavity 1-3 in the middle of framework, described two screw mandrels 4 to be arranged in parallel in base cavity 1-3 and to be rotatably supported on pedestal 1, two screw mandrels 4 all has two rotation directions the first contrary thread segment 4-3 and the second thread segment 4-4, described cogwheel gearing 3 is contained in base cavity 1-3, cogwheel gearing 3 comprises adjusting knob 3-1, driving gear 3-2 and two follower gear 3-3, described adjusting knob 3-1 is rotatably supported in one end of pedestal 1 and fixes with driving gear 3-2, two follower gear 3-3 are separately fixed on corresponding screw mandrel 4, driving gear 3-2 engages with two follower gear 3-3, the guided way 1-4 that the both sides of described slippage fixture block 5 are corresponding to pedestal 1 both sides is respectively slidably matched, one in two slippage fixture blocks 5 with the first thread segment 4-3 threaded engagement of two screw mandrels 4, second thread segment 4-4 threaded engagement of another and two screw mandrels 4, described two detachable intermediate plates 6 are separately fixed at corresponding slippage fixture block 5 top and positioned opposite, the bottom of described two slippage fixture blocks 5 all has clamping slot 5-2.
As shown in Figure 4,5, described pedestal 1 is fixedly formed by spill skeleton frame 1-1 and plate shape seat 1-2.
As shown in Fig. 3,4,5,6,7, described screw mandrel 4 one end is rotatably supported on the spill skeleton frame 1-1 of pedestal 1 by bearing 4-1, the other end is rotatably supported in the pilot hole 1-5 on plate shape seat 1-2, and described follower gear 3-3 passes through key 4-2 or interference fit and screw mandrel 4 to be fixed.
As shown in Fig. 1,9,11, described detachable intermediate plate 6 is fixed on the mount pad 5-1 of corresponding slippage fixture block 5 by hexagon socket head cap screw 2, and one end of described detachable intermediate plate 6 is straight together, and the other end has inclined-plane 6-1, after two detachable intermediate plates 6 close up, between inclined-plane 6-1, form V-type clamp groove.
As shown in Fig. 4,10, the guided way 1-4 of described pedestal 1 both sides is T-shaped rail, and the both sides of described slippage fixture block 5 have chute 5-3, and chute 5-3 coordinates with guided way 1-4.
As shown in Fig. 1,2,3,7,8,9,11, when the utility model uses, control driving gear 3-2 by adjusting knob 3-1, drive follower gear 3-3, screw mandrel 4 rotate then, two screw mandrel 4 smooth drive, two slippage fixture blocks 5 move, and ensure the depth of parallelism of two slippage fixture block 5 workplaces.
The utility model is inverted on horizontal stand, then by sheet metal specimens or sheet coating sample cross section to be measured down through the gap two screw mandrels 4, one end straight together with two detachable intermediate plates 6 clamps sheet metal specimens or sheet coating sample, can ensure the stability of the depth of parallelism between the tested surface of sample and objective table and sample to be tested; If the coating tranverse sectional thickness of sheet metal specimens tranverse sectional thickness or sheet coating sample is too little and establishing criteria can not meet micro-hardness testing requirement, then this sheet metal specimens or sheet coating sample can be placed in the clamping slot 5-2 of slippage fixture block 5 bottom and clamps.
According to the size of cylindrical sample outside dimension to be measured, regulate the spacing between two detachable intermediate plates 6, then cylindrical sample is positioned in the V-type clamp groove formed between the inclined-plane 6-1 of detachable intermediate plate 6, the cylindrical sample of various outer diameter can be clamped.
Claims (5)
1. a micro-hardness testing fixture, comprises pedestal (1), cogwheel gearing (3), two screw mandrels (4), two slippage fixture blocks (5) and two detachable intermediate plates (6), it is characterized in that:
A, described pedestal (1) are rectangle framework, and pedestal (1) both sides have guided way (1-4), are base cavity (1-3) in the middle of framework,
B, described two screw mandrels (4) to be arranged in parallel in base cavity (1-3) and to be rotatably supported on pedestal (1), two screw mandrels (4) all have contrary the first thread segment (4-3) of two rotation directions and the second thread segment (4-4),
C, described cogwheel gearing (3) are contained in base cavity (1-3), cogwheel gearing (3) comprises adjusting knob (3-1), driving gear (3-2) and two follower gears (3-3), described adjusting knob (3-1) is rotatably supported in one end of pedestal (1) and fixes with driving gear (3-2), two follower gears (3-3) are separately fixed on corresponding screw mandrel (4), driving gear (3-2) engages with two follower gears (3-3)
The both sides of d, described slippage fixture block (5) are slidably matched with the corresponding guided way in pedestal (1) both sides (1-4) respectively, one in two slippage fixture blocks (5) with the first thread segment (4-3) threaded engagement of two screw mandrels (4), second thread segment (4-4) threaded engagement of another and two screw mandrels (4)
E, described two detachable intermediate plates (6) are separately fixed at corresponding slippage fixture block (5) top and positioned opposite,
The bottom of f, described two slippage fixture blocks (5) all has clamping slot (5-2).
2. micro-hardness testing fixture according to claim 1, is characterized in that: described pedestal (1) is fixedly formed by spill skeleton frame (1-1) and plate shape seat (1-2).
3. micro-hardness testing fixture according to claim 2, it is characterized in that: described screw mandrel (4) one end is rotatably supported on the spill skeleton frame (1-1) of pedestal (1) by bearing (4-1), the other end is rotatably supported in the pilot hole (1-5) on plate shape seat (1-2), and described follower gear (3-3) is fixed by key (4-2) or interference fit and screw mandrel (4).
4. micro-hardness testing fixture according to claim 1, it is characterized in that: described detachable intermediate plate (6) is fixed on the mount pad (5-1) of corresponding slippage fixture block (5) by hexagon socket head cap screw (2), one end of described detachable intermediate plate (6) is straight together, the other end has inclined-plane (6-1), two detachable intermediate plates (6) form V-type clamp groove between inclined-plane (6-1) after closing up.
5. micro-hardness testing fixture according to claim 1, it is characterized in that: the guided way (1-4) of described pedestal (1) both sides is T-shaped rail, the both sides of described slippage fixture block (5) have chute (5-3), and chute (5-3) coordinates with guided way (1-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784236.9U CN205049412U (en) | 2015-10-10 | 2015-10-10 | Microhardness test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784236.9U CN205049412U (en) | 2015-10-10 | 2015-10-10 | Microhardness test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205049412U true CN205049412U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520784236.9U Withdrawn - After Issue CN205049412U (en) | 2015-10-10 | 2015-10-10 | Microhardness test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205049412U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN105666846A (en) * | 2016-04-05 | 2016-06-15 | 陈荣辉 | Electric end surface collaring machine for plastic pipes |
| CN108693198A (en) * | 2018-03-08 | 2018-10-23 | 西南交通大学 | A kind of clamping device and synchrotron radiation in situ imaging fatigue tester |
| CN108732052A (en) * | 2018-05-03 | 2018-11-02 | 山西大学 | Side pressure microhardness testers |
| CN114166602A (en) * | 2021-12-03 | 2022-03-11 | 西京学院 | Triaxial test soil sample manufacturing device and sample manufacturing method |
-
2015
- 2015-10-10 CN CN201520784236.9U patent/CN205049412U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN105203391B (en) * | 2015-10-10 | 2017-10-10 | 中车戚墅堰机车车辆工艺研究所有限公司 | Micro-hardness testing fixture |
| CN105666846A (en) * | 2016-04-05 | 2016-06-15 | 陈荣辉 | Electric end surface collaring machine for plastic pipes |
| CN108693198A (en) * | 2018-03-08 | 2018-10-23 | 西南交通大学 | A kind of clamping device and synchrotron radiation in situ imaging fatigue tester |
| CN108693198B (en) * | 2018-03-08 | 2024-05-14 | 西南交通大学 | Clamping mechanism and synchrotron radiation in-situ imaging fatigue testing machine |
| CN108732052A (en) * | 2018-05-03 | 2018-11-02 | 山西大学 | Side pressure microhardness testers |
| CN114166602A (en) * | 2021-12-03 | 2022-03-11 | 西京学院 | Triaxial test soil sample manufacturing device and sample manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Pingping Inventor after: Xu Luoping Inventor after: Wu Jianhua Inventor after: He Lei Inventor after: Pan Anxia Inventor after: Liang Huilei Inventor after: Wang Qun Inventor before: Li Pingping |
|
| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213011 Wuyi Road, Changzhou, Jiangsu, No. 258, No. Patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Changzhou, Jiangsu, No. 258, No. Patentee before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160224 Effective date of abandoning: 20171010 |