CN204789119U - Positioner of hopkinson bar system - Google Patents
Positioner of hopkinson bar system Download PDFInfo
- Publication number
- CN204789119U CN204789119U CN201520483634.7U CN201520483634U CN204789119U CN 204789119 U CN204789119 U CN 204789119U CN 201520483634 U CN201520483634 U CN 201520483634U CN 204789119 U CN204789119 U CN 204789119U
- Authority
- CN
- China
- Prior art keywords
- locating
- locating slot
- utility
- model
- hopkinson
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a positioner of hopkinson bar system, positioner in the constant head tank be equipped with location boss and symmetrical slit, location lid bottom is equipped with symmetrical step, clamping device comprises upper and lower two halves circle, clamping device is a hold -down mechanism. Adopt the utility model discloses a when positioner fixes a position, at first according to the experiment needs confirm the foil gage on hopkinson bar axial position and make the mark, aim at this mark with the circumference slit of constant head tank, cover closely the location by the location boss on the constant head tank and closely laminate with the constant head tank again, press from both sides tightly with clamping device. Then use marking tool to draw the circumferential location line along the circumference slit of constant head tank and the tip of location lid, along the top stroke axial positioning line of constant head tank, the interlacing line that both formed is foil gage sticking position promptly. The utility model discloses the foil gage of can be accurately pasting hopkinson bar system symmetry is fixed a position, is favorable to improving the precision of experiment.
Description
Technical field
The utility model belongs to In Dynamic Testing of Materials research field, is specifically related to a kind of locating device of Hopkinson lever system.
Background technology
The dynamic mechanical of material under high speed impact (high strain-rate) and the quasistatic mechanical property under low strain dynamic rate have larger difference, and Hopkinson (Hopkinson) bar (comprising depression bar, pull bar etc.) experimental system carries out the most frequently used means of material dynamic mechanical performance study.Along with the development of scientific research and industrial technology, the Research of dynamic mechanical of material comes into one's own day by day, and Hopkinson bar experimental system also obtain and develops rapidly.According to the feature of Hopkinson bar experimental system, need to paste two panels foil gauge in the same shaft section symmetry of Hopkinson bar (cylindrical bar) in experimentation, this accurately locates the paste position of two panels foil gauge with regard to requiring.Often carry out manual location by some aids for the location of foil gauge at present, but there is use inconvenience, the shortcomings such as precision is not high, serve unnecessary error to experimental result band.
Summary of the invention
In order to the operation inconvenience existed when overcoming and carry out manual location to foil gauge in prior art, location is inaccurate, and be easy to the deficiency causing experimental error, the utility model provides a kind of locating device of Hopkinson lever system.Locating device of the present utility model and localization method, easy and simple to handle, accurate positioning, is conducive to the precision improving experiment.
For achieving the above object, the utility model takes following technical scheme:
The locating device of Hopkinson lever system of the present utility model, is characterized in, described locating device comprises locating cover, the locating slot of below, the clamp device of top.Its annexation is, described locating cover and locating slot are arranged with diameter; One end of described locating slot is provided with positioning boss, and middle part circumferentially has two symmetrical finedraws, and finedraw is arranged with the axial vertical of locating slot; The bottom of described locating cover is provided with two symmetrical steps; Described clamp device is an elastic hold-down mechanism, and be made up of laterally zygomorphic two semicircles, one end of clamp device two semicircles is connected through the hinge, and the other end can folding locking; Described locating cover and locating slot are by clamp device pressing, and the upper semi-circle of clamp device is arranged on the periphery of locating cover, and lower half circle is arranged on the periphery of locating slot.
The length of described locating cover equals the distance between positioning boss and finedraw.
The bottom of described locating slot is cambered surface or plane.
Described locating slot, the internal diameter of locating cover are all identical with the diameter of Hopkinson bar, and the degree of depth is the half of Hopkinson shank diameter.
The material of described locating slot, locating cover adopts the one in iron, copper, aluminium, steel alloy.
For a method for the locating device of Hopkinson lever system, comprise the following steps successively:
A. experimentally need to determine the axial location of foil gauge on Hopkinson bar and make mark;
B. the circumferential finedraw of locating slot is aimed at this mark, fitted tightly with locating slot near the positioning boss on locating slot by locating cover, locating cover and locating slot are adjacent to the excircle at Hopkinson bar, pass through gripping means grips;
C. use scoring tool to draw circumferential position line along the circumferential finedraw of locating slot and the end of locating cover, axial location line is drawn at the top along locating slot, and the cross spider that both are formed is strain gauge adhesion position;
D. repeat step c in symmetric position, symmetrical foil gauge position of pasting can be obtained.
Described clamp device is an elastic hold-down mechanism, and one end is hinge, and the other end can be opened easily and closes up and lock.Can clamping and positioning groove and locating cover after locking.
The beneficial effects of the utility model are: the locating device for Hopkinson lever system of the present utility model and method, easy and simple to handle, can position the foil gauge that Hopkinson bar symmetry system having symmetry is pasted exactly, are conducive to the precision improving experiment.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structural representation of the locating device of Hopkinson lever system of the present utility model;
Fig. 2 is locating device side view in embodiment 1 of the present utility model;
Fig. 3 (a) is the locating cover schematic diagram in embodiment 1 of the present utility model, and Fig. 3 (b) is the locating cover side view in embodiment 1 of the present utility model;
Fig. 4 (a) is the locating slot structural representation in embodiment 1 of the present utility model, and Fig. 4 (b) is the locating slot side view in embodiment 1 of the present utility model;
Fig. 5 is embodiment 2 structural representation of the locating device of Hopkinson lever system of the present utility model;
Fig. 6 is the positioning device structure side view in embodiment 2 of the present utility model;
Fig. 7 (a) is the locating slot structure front elevational schematic in embodiment 2 of the present utility model;
Fig. 7 (b) is the locating slot structure schematic side view in embodiment 2 of the present utility model;
In figure: 1. the symmetrical step of the symmetrical finedraw 8. of Hopkinson bar 2. locating cover 3. clamp device 4. positioning boss 5. locating slot 6..
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1
Fig. 1 is embodiment 1 structural representation of the locating device of Hopkinson lever system of the present utility model, Fig. 2 is locating device side view in embodiment 1 of the present utility model, Fig. 3 (a) is the locating cover schematic diagram in embodiment 1 of the present utility model, Fig. 3 (b) is the locating cover side view in embodiment 1 of the present utility model, Fig. 4 (a) is the locating slot structural representation in embodiment 1 of the present utility model, and Fig. 4 (b) is the locating slot side view in embodiment 1 of the present utility model.
In Fig. 1 to Fig. 4, the locating device of Hopkinson lever system of the present utility model, comprises locating cover 2, the locating slot 5 of below, the clamp device 3 of top; Its annexation is, described locating cover 2 is arranged with diameter with locating slot 5; One end of described locating slot 5 is provided with positioning boss 4, and middle part circumferentially has two symmetrical finedraws 6, and finedraw 6 is arranged with the axial vertical of locating slot 5; The bottom of described locating cover 2 is provided with two symmetrical steps 8; Described clamp device 3 is an elastic hold-down mechanism, and be made up of laterally zygomorphic two semicircles, one end of clamp device two semicircles is connected through the hinge, and the other end can folding locking; Described locating cover 2 and locating slot 5 are by clamp device 3 pressing, and the upper semi-circle of clamp device 3 is arranged on the periphery of locating cover 2, and lower half circle is arranged on the periphery of locating slot 5.
The length of described locating cover 2 equals the distance between positioning boss 4 and finedraw 6.
Described locating slot 5, the internal diameter of locating cover are all identical with the diameter of Hopkinson bar 1, and the degree of depth is the half of Hopkinson shank diameter.
In the present embodiment, the bottom of described locating slot 5 is cambered surface, and the material of locating slot 5, locating cover 2 adopts iron.
The method of the locating device of Hopkinson lever system of the present utility model, comprises the following steps successively:
A. experimentally need to determine the axial location of foil gauge on Hopkinson bar and make mark;
B. the circumferential finedraw of locating slot is aimed at this mark, fitted tightly with locating slot near the positioning boss on locating slot by locating cover, locating cover and locating slot are adjacent to the excircle at Hopkinson bar, pass through gripping means grips;
C. use scoring tool to draw circumferential position line along the circumferential finedraw of locating slot and the end of locating cover, axial location line is drawn at the top along locating slot, and the cross spider that both are formed is strain gauge adhesion position;
D. repeat step c in symmetric position, symmetrical foil gauge position of pasting can be obtained.
Embodiment 2
Fig. 5 is embodiment 2 structural representation of the locating device of Hopkinson lever system of the present utility model.Fig. 6 is the positioning device structure side view in embodiment 2 of the present utility model.Fig. 7 (a) is the locating slot structure front elevational schematic in embodiment 2 of the present utility model, and Fig. 7 (b) is the locating slot structure schematic side view in embodiment 2 of the present utility model.In Fig. 5 to Fig. 7, the present embodiment 2 is identical with the positioning device structure in embodiment 1, and localization method is identical.Difference is, the bottom of the locating slot in described locating device is plane.The material of described locating slot 5 and locating cover 2 adopts copper.It is plane bottom locating cover.
Hopkinson lever system add clamp device in the present embodiment, also can position the symmetric strained sheet being not easy to take off the Hopkinson bar operated on the table easily.
Claims (4)
1. a locating device for Hopkinson lever system, is characterized in that: described locating device comprises locating cover (2), the locating slot (5) of below, the clamp device (3) of top; Its annexation is, described locating cover (2) and locating slot (5) are arranged with diameter; One end of described locating slot (5) is provided with positioning boss (4), and middle part circumferentially has two symmetrical finedraws (6), and finedraw (6) is arranged with the axial vertical of locating slot (5); The bottom of described locating cover (2) is provided with two symmetrical steps (8); Described clamp device (3) is an elastic hold-down mechanism, is made up of laterally zygomorphic two semicircles, and one end of clamp device (3) two semicircles is connected through the hinge, and the other end can folding locking; Described locating cover (2) and locating slot (5) are by clamp device (3) pressing, and the upper semi-circle of clamp device (3) is arranged on the periphery of locating cover (2), and lower half circle is arranged on the periphery of locating slot (5).
2. the locating device of Hopkinson lever system according to claim 1, is characterized in that: the length of described locating cover (2) equals the distance between positioning boss (4) and finedraw (6).
3. the locating device of Hopkinson lever system according to claim 1, is characterized in that: the bottom of described locating slot (5) is cambered surface or plane.
4. the locating device of Hopkinson lever system according to claim 1, is characterized in that: described locating slot (5), the internal diameter of locating cover (2) are all identical with the diameter of Hopkinson bar (1), and the degree of depth is the half of Hopkinson shank diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483634.7U CN204789119U (en) | 2015-07-08 | 2015-07-08 | Positioner of hopkinson bar system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483634.7U CN204789119U (en) | 2015-07-08 | 2015-07-08 | Positioner of hopkinson bar system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789119U true CN204789119U (en) | 2015-11-18 |
Family
ID=54529138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520483634.7U Expired - Fee Related CN204789119U (en) | 2015-07-08 | 2015-07-08 | Positioner of hopkinson bar system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204789119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931339A (en) * | 2015-07-08 | 2015-09-23 | 中国工程物理研究院总体工程研究所 | Hopkinson bar system positioning device and method |
-
2015
- 2015-07-08 CN CN201520483634.7U patent/CN204789119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931339A (en) * | 2015-07-08 | 2015-09-23 | 中国工程物理研究院总体工程研究所 | Hopkinson bar system positioning device and method |
| CN104931339B (en) * | 2015-07-08 | 2017-10-31 | 中国工程物理研究院总体工程研究所 | The positioner and method of a kind of Hopkinson lever system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104931339A (en) | Hopkinson bar system positioning device and method | |
| CN204789119U (en) | Positioner of hopkinson bar system | |
| CN202693356U (en) | Quantitative quick and convenient soil sampler | |
| CN204221448U (en) | A kind of milling glass door reverse groove fixture of engraving machine | |
| CN202894073U (en) | Stamping die | |
| CN203293301U (en) | Timber clamping device | |
| CN204381526U (en) | A kind of multi-angle angle shear | |
| CN204855338U (en) | Digital concrete reinforcement adhesion stress detection device | |
| CN201419214Y (en) | Air cylinder positioning device | |
| CN207681223U (en) | A kind of diel of bending holder | |
| CN203235808U (en) | Adjusting gasket punching machining device | |
| CN202498108U (en) | Clamp used for making bending plate | |
| CN205703810U (en) | A kind of fast-type tubular workpiece clamping device | |
| CN203649066U (en) | Novel bending production device for sheet metal parts | |
| CN203778614U (en) | Stamping machine for manufacturing tensile testing sample aluminum plates | |
| CN204818827U (en) | Fixture | |
| CN203778552U (en) | Stamping machine for manufacturing tensile testing sample aluminum plate | |
| CN209062918U (en) | Sheet metal component positioning mechanism | |
| CN203158649U (en) | Brick clamp convenient to use | |
| CN207204966U (en) | A kind of medical suturing instrument outer tube decompressor | |
| CN204413653U (en) | A kind of Workpiece boring clamping tool | |
| CN206316248U (en) | A kind of diel for processing deduster polar curve | |
| CN202752462U (en) | Die for processing sheet glands | |
| CN204183522U (en) | Laborsaving brad punch | |
| CN201728277U (en) | Steel sheet cold-bending test combined bending head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |