CN202066740U - Automatic centering device for upper tensioning chuck - Google Patents
Automatic centering device for upper tensioning chuck Download PDFInfo
- Publication number
- CN202066740U CN202066740U CN2011200848262U CN201120084826U CN202066740U CN 202066740 U CN202066740 U CN 202066740U CN 2011200848262 U CN2011200848262 U CN 2011200848262U CN 201120084826 U CN201120084826 U CN 201120084826U CN 202066740 U CN202066740 U CN 202066740U
- Authority
- CN
- China
- Prior art keywords
- stretching chuck
- depression
- tapering
- chuck
- upper tensioning
- 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
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Abstract
The utility model relates to an automatic centering device for an upper tensioning chuck in a universal testing machine, which brings convenience for installation of the upper tensioning chuck and comprises a body. The lower end of the body is a cylinder, the diameter of the cylinder matches with the inner diameter of a lower positioning sleeve, a positioning through hole is disposed on the circumference of the cylinder, a recessed container is arranged at the upper end of the body, the size of the recessed container matches with that of the lower end of the upper tensioning chuck, and the center axis of the recessed container is coincident with the axis of the cylinder. The automatic centering device for the upper tensioning chuck has the advantages that the lower positioning sleeve is automatically centered with the upper tensioning chuck during installation, and the upper tensioning chuck is installed conveniently.
Description
Technical field
The utility model relates to frock clamp and makes the field, and in particular, the utility model is a kind of automatic centring device that the last stretching chuck of universal testing machine is for convenience installed.
Background technology
30 tons of system controlled by computer universal testing machines, the heavy 30kg of the last stretching chuck of its tension test itself, with middle cross beam on cooperating of locating sleeve be transition (location) cooperation, and machine below worktable is bigger, there is column both sides, when installing chuck, need three installations that the people requires great effort very much, and be difficult for being in place,, can be easy to install locating sleeve so need a kind of automatic centring device.
Patent Office of the People's Republic of China has announced a CN200956002Y document on October 3rd, 2007, name is called the vertical anchor clamps in the automatic school of universal testing machine test specimen, and these vertical anchor clamps in automatic school are put into respectively in the upper grip and lower chuck of universal testing machine.The vertical anchor clamps in the automatic school of test specimen are made up of outer anchor clamps and interior anchor clamps.Outer anchor clamps are outside one-tenth ladder type, and inner chamber becomes dome-type, and a side has groove and is communicated with inner chamber.Interior anchor clamps are outside one-tenth dome-type, and inner chamber becomes half oval stepped ramp type, and a side has groove and is communicated with inner chamber.That these anchor clamps have is simple in structure, test figure is accurate, cost is low.Be particularly suitable for test specimen and do tensile test.The shortcoming of these vertical anchor clamps in automatic school is to detect whether vertical centering of upper grip and lower chuck, and can not play the automatic centering effect in upper grip is installed, thereby can not play the convenient effect that the stretching chuck is installed of going up.
Summary of the invention
The utility model for solve exist in the prior art can only detect whether vertical centering of upper grip and lower chuck, and can not in upper grip is installed, play the automatic centering effect, thereby can not play the convenient shortcoming that goes up stretching chuck installation effect, provide a kind of and can conveniently go up the automatic centring device that the stretching chuck is installed.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model comprises body, the lower end of body is the right cylinder that diameter and following locating sleeve internal diameter match, cylindrical circumference is provided with positioning through hole, the upper end of body is provided with size and holds body with the depression that last stretching chuck lower end matches, and depression is held the central axis and the cylindrical dead in line of body.Body connects down locating sleeve as installing under the transition block, on present the stretching chuck, therefore with the central axes of the depression appearance body of locating sleeve in the admittance of the cylindrical axis of lower end and upper end, when mounted, in the pilot hole with locating sleeve under the lower end right cylinder insertion of body, and with in the pin insertion positioning through hole, again last stretching chuck is placed in the depression appearance body of body upper end, just the central axis that will go up the stretching chuck has automatically alignd with the central axis of following locating sleeve, to go up locating sleeve by the testing machine crossbeam again and be enclosed within the upper end of stretching chuck and plug connecting pin and just install, thereby play the effect that the stretching chuck is installed on the convenience.
As preferably, the inwall that depression is held body has the open tapering that makes progress.Promptly depression appearance body has the open hydraucone that makes progress, and is more convenient in the time of can making the stretching chuck put into depression appearance body.
As preferably, the tapering of inwall that depression is held body is identical with the axial tapering of last stretching chuck lower end.In order to reduce to go up the weight of stretching chuck, generally also will go up the stretching chuck is made into the cone-shaped body that dwindles downwards, therefore the tapering of depression appearance body inwall is consistent with the tapering of last stretching chuck, more convenient in the time of both can having made the stretching chuck put into depression to hold body, can guarantee the right alignment of stretching chuck and following locating sleeve again.
As preferably, the inwall end that depression is held body is provided with chamfering.
As preferably, the outer wall that depression is held body has and inwall tapering tapering of the same size.The consistent wall thickness that can make depression hold body with the tapering of outer wall of inwall of depression appearance body is even, thereby makes body have minimum weight, saves material, conveniently installs.
As preferably, be provided with through hole in the right cylinder.Through hole is set in right cylinder can reduces this body weight, thereby save material, the convenient installation.
The beneficial effects of the utility model are: will descend locating sleeve and last stretching chuck centering automatically in installation process, make things convenient for the installation of last stretching chuck.
Description of drawings
Fig. 1 is a kind of structural representation of stretching chuck automatic centring device on the utility model;
Fig. 2 is the structural representation of automatic centering when going up the installation of stretching chuck.
Among the figure: 1. crossbeam, 2. go up locating sleeve, the chuck that stretches on 3., 4. body 5. descends locating sleeve, 6. worktable, 7. column, 8. outer wall, 9. inwall, 10. depression is held body, 11. through holes, 12. positioning through hole, 13. right cylinders.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.
Embodiment:
The last stretching chuck automatic centring device of present embodiment referring to Fig. 1, comprises body 4, and the lower end of body 4 is right cylinders 13, and the upper end is that the circular depressed with certain taper is held body 10, and the inwall 9 that depression is held body 10 has 40 identical degree taperings with outer wall 8; End at inwall 9 is provided with chamfering, is provided with positioning through hole 12 on the circumference of right cylinder 13, is provided with through hole 11 at the center of right cylinder 13, and it is coaxial with right cylinder 13 that depression is held body 10.
Referring to Fig. 2, the external diameter of the right cylinder 13 in the body 4 and the diameter of bore transition fit of following locating sleeve 5, the positioning through hole 12 on the right cylinder 13 is coaxial and big or small consistent with the through hole on the following locating sleeve 5; The size and the tapering of depression appearance body 10 are consistent with the size and the tapering of last stretching chuck 3 lower ends.
To descend locating sleeve 5 to be placed on the worktable 6, right cylinder on the body 4 13 inserts in the endoporus of locating sleeves 5 down, and the positioning through hole on the right cylinder 13 12 is alignd with pilot hole on the following locating sleeve 5, uses the pin pinning; With last stretching chuck 3 is that the upper end insert to be gone up in the endoporus of locating sleeve 2 and used the pin pinning, last locating sleeve 2 is connected on the crossbeam 1, crossbeam 1 is installed on the column 7, can lifting or move horizontally locating sleeve 2 and go up stretching chuck 3 by crossbeam 1 and column 7, the depression that last stretching chuck 3 is placed on the body 4 is held in the body 10, suitably beaing down locating sleeve 5 coincide depression appearance body 10 and last stretching chuck 3, to descend locating sleeve 5 and worktable 6 lockings again, at this moment, last locating sleeve 2 and go up stretching chuck 3 with following locating sleeve 5 centerings, last stretching chuck 3 installs.
Above embodiment is one of preferred plan of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (6)
1. go up stretching chuck automatic centring device for one kind, comprise body, it is characterized in that: the lower end of described body (4) is the right cylinder (13) that diameter and following locating sleeve (5) internal diameter match, the circumference of described right cylinder (13) is provided with positioning through hole (12), the upper end of described body (4) is provided with size and holds body (10) with the depression that last stretching chuck (3) lower end matches, and described depression is held the central axis of body (10) and the dead in line of described right cylinder (13).
2. the stretching chuck automatic centring device of going up according to claim 1, it is characterized in that: the inwall (9) that described depression is held body (10) has the open tapering that makes progress.
3. the stretching chuck automatic centring device of going up according to claim 2, it is characterized in that: the tapering of the inwall (9) of described depression appearance body (10) is identical with the axial tapering of last stretching chuck (3) lower end.
4. the stretching chuck automatic centring device of going up according to claim 2, it is characterized in that: inwall (9) upper end that described depression is held body (10) is provided with chamfering.
5. the stretching chuck automatic centring device of going up according to claim 2, it is characterized in that: the outer wall (8) that described depression is held body (10) has and described inwall (9) tapering tapering of the same size.
6. according to claim 1 or 2 or 3 or the 4 or 5 described stretching chuck automatic centring devices of going up, it is characterized in that: be provided with through hole (11) in the described right cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200848262U CN202066740U (en) | 2011-03-28 | 2011-03-28 | Automatic centering device for upper tensioning chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200848262U CN202066740U (en) | 2011-03-28 | 2011-03-28 | Automatic centering device for upper tensioning chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066740U true CN202066740U (en) | 2011-12-07 |
Family
ID=45060600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200848262U Expired - Fee Related CN202066740U (en) | 2011-03-28 | 2011-03-28 | Automatic centering device for upper tensioning chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202066740U (en) |
-
2011
- 2011-03-28 CN CN2011200848262U patent/CN202066740U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20140328 |