CN204524970U - A kind of dovetail type center positioning mechanism - Google Patents
A kind of dovetail type center positioning mechanism Download PDFInfo
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- CN204524970U CN204524970U CN201520054447.7U CN201520054447U CN204524970U CN 204524970 U CN204524970 U CN 204524970U CN 201520054447 U CN201520054447 U CN 201520054447U CN 204524970 U CN204524970 U CN 204524970U
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Abstract
The utility model discloses a kind of dovetail type center positioning mechanism, comprise some groups of detent mechanisms and one group of transmission mechanism, these some groups of detent mechanisms are uniformly distributed in around transmission mechanism; Detent mechanism comprises the centralized positioning end, centralized positioning claw and the centralized positioning slide block that connect successively from top to bottom; Transmission mechanism comprises interconnective centralized positioning pull bar and pushes away cylinder, and centralized positioning pull bar is positioned at the top pushing away cylinder; Wherein, transmission mechanism is connected with some groups of detent mechanisms by centralized positioning skewback simultaneously, and this centralized positioning skewback is conical structure; And cover has Compress Spring on centralized positioning pull bar.Adopt technique scheme, the utility model utilizes dovetail groove principle, centralized positioning skewback is added in the junction of detent mechanism and transmission mechanism, transmission mechanism can be driven simultaneously and organize detent mechanism more, thus ensure that each group of detent mechanism can touch workpiece simultaneously, and then reach the object of setting accuracy.
Description
Technical field
The utility model relates to mechanical clamp field, particularly a kind of dovetail type center positioning mechanism.
Background technology
In mechanical clamp field now, some workpiece needs to utilize 3 endoporus simultaneously strutting workpiece to position, and existing 3 pin retention mechanisms that rise are all realized by a cone bar of centre and three push rods of surrounding, namely when bore masthead push rod expand outwardly time, three cone masthead clamping of workpieces, but, due to structural shortcoming, three push rods likely cannot outwards move simultaneously, thus there is the problem that simultaneously cannot contact workpiece, and then may affect the accuracy of location.
Utility model content
In order to solve the low problem of above-mentioned setting accuracy, the utility model provides a kind of dovetail type center positioning mechanism, and this mechanism effectively can ensure that 3 groups of detent mechanisms outwards strut simultaneously, thus improves the accuracy of Workpiece fixing.
Above-mentioned a kind of dovetail type center positioning mechanism, comprise some groups of detent mechanisms and one group of transmission mechanism, described some groups of detent mechanisms are uniformly distributed in around transmission mechanism;
Described detent mechanism comprises the centralized positioning end, centralized positioning claw and the centralized positioning slide block that connect successively from top to bottom; Described transmission mechanism comprises interconnective centralized positioning pull bar and pushes away cylinder, and described centralized positioning pull bar is positioned at the top pushing away cylinder;
Wherein, described transmission mechanism is connected with some groups of detent mechanisms by centralized positioning skewback simultaneously, and described centralized positioning skewback is conical structure; On described centralized positioning pull bar, cover has Compress Spring.
In said mechanism, the quantity of described detent mechanism is 3 groups and is triangular arranged.
In said mechanism, described centralized positioning slide block is connected with centralized positioning pull bar by centralized positioning skewback.
In said mechanism, the one end near centralized positioning skewback on described centralized positioning slide block is ramp structure.
In said mechanism, described centralized positioning pull bar is fixed by centralized positioning block.
In said mechanism, described in push away cylinder and be fixed by pushing away cylinder holder.
In said mechanism, the outside of described centralized positioning pull bar is also overlapped and is had lining.
Advantage of the present utility model and beneficial effect are: the utility model provides a kind of dovetail type center positioning mechanism, utilize dovetail groove principle, centralized positioning skewback is added in the junction of detent mechanism and transmission mechanism, transmission mechanism can be driven simultaneously and organize detent mechanism more, thus ensure that each group of detent mechanism can touch workpiece simultaneously, and then reach the object of setting accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of dovetail type center positioning mechanism in the utility model;
Fig. 2 is the B-B generalized section of dovetail type center positioning mechanism in Fig. 1.
In figure: 1, centralized positioning end 2, centralized positioning claw 3, centralized positioning slide block 4, centralized positioning block 5, centralized positioning pull bar 6, push away cylinder holder 7, push away cylinder 8, lining 9, centralized positioning skewback 10, Compress Spring
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, the utility model is a kind of dovetail type center positioning mechanism, comprise some groups of detent mechanisms and one group of transmission mechanism, and some groups of detent mechanisms is uniformly distributed in around transmission mechanism;
Preferably, in order to realize the centralized positioning of bikini, the quantity of above-mentioned detent mechanism is 3 groups and is triangular arranged, and it is all equal with the distance between transmission mechanism often to organize detent mechanism.
Fig. 2 is the B-B generalized section of dovetail type center positioning mechanism in Fig. 1, as shown in Figure 2, detent mechanism comprises the centralized positioning end 1, centralized positioning claw 2 and the centralized positioning slide block 3 that connect successively from top to bottom, this centralized positioning end 1 is responsible for contacting with workpiece to be positioned, thus positions.
Meanwhile, transmission mechanism comprises interconnective centralized positioning pull bar 5 and pushes away cylinder 7, and centralized positioning pull bar 5 is positioned at the top pushing away cylinder 7; This pushes away cylinder 7 can provide power source for mechanism, and pulls centralized positioning pull bar 5 with this.
Further, 3 groups of detent mechanisms can be driven in order to ensure transmission mechanism simultaneously, the centralized positioning skewback 9 of conical structure is provided with between transmission mechanism and detent mechanism, and transmission mechanism is connected with 3 groups of detent mechanisms by this centralized positioning skewback 9 simultaneously, transmission mechanism is then positioned at the center of the equilateral triangle be made up of 3 groups of detent mechanisms; Specifically centralized positioning slide block 3 is connected with centralized positioning pull bar 5 by centralized positioning skewback 9.
Preferably, in order to better mate the centralized positioning skewback 9 of conical structure, so the one end near centralized positioning skewback 9 on centralized positioning slide block 3 is designed to corresponding ramp structure.
In addition, restore to realize the automation of mechanism after completing location, on centralized positioning pull bar 5, cover has Compress Spring 10.
Preferably, in order to increase the stability of mechanism, above-mentioned centralized positioning pull bar 5 is fixed by the centralized positioning block 4 outside it, and pushes away cylinder 7 and be also fixed by the cylinder holder 6 that pushes away outside it, and also overlaps in the outside of centralized positioning pull bar 5 and have lining 8.
In the utility model, the operation principle of dovetail type center positioning mechanism is:
Centralized positioning pull bar 5 can be pulled under the effect of oil pressure to do downward rectilinear motion owing to pushing away cylinder 7 and make Compress Spring 10 be in extended state, now centralized positioning skewback 9 also can move downward along with pull bar 5 together, centralized positioning slide block 3 is driven to do outside transverse movement by the skew wall of centralized positioning skewback 9 again, and then drive centralized positioning end 1 to do outside diffusion motion by centralized positioning claw 2, thus near workpiece positioning; Owing to have employed the centralized positioning skewback 9 of cone, make the interlock situation between transmission mechanism with 3 groups of detent mechanisms complete identical, thus effectively can ensure that 3 groups of detent mechanisms outwards strut simultaneously, and then ensure that the accuracy of location.
After positioning work completes, scuffing of cylinder bore 7 quits work, due to the elastic reaction of the Compress Spring 10 on centralized positioning pull bar 5, centralized positioning pull bar 5 is made to be back to original state, thus cause centralized positioning slide block 3 to do reverse transverse movement, and drive 3 group switching centre detent mechanisms again to bounce back, and then unclamp workpiece, so far complete positioning action.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a dovetail type center positioning mechanism, comprise some groups of detent mechanisms and one group of transmission mechanism, described some groups of detent mechanisms are uniformly distributed in around transmission mechanism; Described detent mechanism comprises the centralized positioning end, centralized positioning claw and the centralized positioning slide block that connect successively from top to bottom; Described transmission mechanism comprises interconnective centralized positioning pull bar and pushes away cylinder, and described centralized positioning pull bar is positioned at the top pushing away cylinder;
It is characterized in that, described transmission mechanism is connected with some groups of detent mechanisms by centralized positioning skewback simultaneously, and described centralized positioning skewback is conical structure; On described centralized positioning pull bar, cover has Compress Spring.
2. a kind of dovetail type center positioning mechanism according to claim 1, is characterized in that, the quantity of described detent mechanism is 3 groups and is triangular arranged.
3. a kind of dovetail type center positioning mechanism according to claim 1, is characterized in that, described centralized positioning slide block is connected with centralized positioning pull bar by centralized positioning skewback.
4. a kind of dovetail type center positioning mechanism according to claim 3, is characterized in that, the one end near centralized positioning skewback on described centralized positioning slide block is ramp structure.
5. a kind of dovetail type center positioning mechanism according to claim 1, is characterized in that, described centralized positioning pull bar is fixed by centralized positioning block.
6. a kind of dovetail type center positioning mechanism according to claim 1, is characterized in that, described in push away cylinder and be fixed by pushing away cylinder holder.
7. a kind of dovetail type center positioning mechanism according to claim 1, is characterized in that, the outside of described centralized positioning pull bar is also overlapped and had lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054447.7U CN204524970U (en) | 2015-01-26 | 2015-01-26 | A kind of dovetail type center positioning mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054447.7U CN204524970U (en) | 2015-01-26 | 2015-01-26 | A kind of dovetail type center positioning mechanism |
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| Publication Number | Publication Date |
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| CN204524970U true CN204524970U (en) | 2015-08-05 |
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| CN201520054447.7U Active CN204524970U (en) | 2015-01-26 | 2015-01-26 | A kind of dovetail type center positioning mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243760A (en) * | 2017-07-25 | 2017-10-13 | 成都银河动力有限公司 | A kind of cylinder jacket reaming jig |
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2015
- 2015-01-26 CN CN201520054447.7U patent/CN204524970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243760A (en) * | 2017-07-25 | 2017-10-13 | 成都银河动力有限公司 | A kind of cylinder jacket reaming jig |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 201613 Dongxing Road, Shanghai, No. 398, No. Patentee after: Wei intelligent electromechanical (Shanghai) Limited by Share Ltd Address before: 201613 Dongxing Road, Shanghai, No. 398, No. Patentee before: Liwei electromechanical (Shanghai) Co., Ltd. |