CN202846178U - Pressing device - Google Patents
Pressing device Download PDFInfo
- Publication number
- CN202846178U CN202846178U CN 201220357965 CN201220357965U CN202846178U CN 202846178 U CN202846178 U CN 202846178U CN 201220357965 CN201220357965 CN 201220357965 CN 201220357965 U CN201220357965 U CN 201220357965U CN 202846178 U CN202846178 U CN 202846178U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- hold down
- friction pair
- down gag
- shell
- 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 discloses a pressing device. The pressing device comprises a fixed device which is used for fixing the pressed piece and a limit force nut which matches with the fixed device through screw threads. The limit force nut comprises an inner ring which is provided with screw threads, an outer shell which is used for bearing external force and a friction pair which is arranged between the inner ring and the outer shell and connected with the inner ring and the outer shell through friction force. When the force which is acted on the outer shell is less than the friction force which is produced by relative sliding of the friction pair and the outer shell, the inner ring rotates as the outer shell under the action of the friction pair and slides along the fixed device so as to achieve the goal of pressing the pressing plates or loosening the pressing plates. When the force which is acted on the outer shell is more than the friction force which is produced by relative sliding of the friction pair and the outer shell, the inner ring slips with the outer shell under the action of the friction pair so as to enable the inner ring not to move on the fixed device, the pressed piece are not pressed any more and a goal of limiting the pressure of the pressing plates is achieved.
Description
Technical field
The utility model relates to the turnning and milling technical field, relates in particular to a kind of hold down gag.
Background technology
Along with the development of aeronautical technology, part material is of a great variety, and much spare and accessory parts all are thin-wall part, unsuitable weight.Along with going deep into of batch production, need positive raising working (machining) efficiency also to need to pay attention to satisfying the requirement of processing simultaneously, thus quality and the efficient of on the whole assurance production.
With reference to shown in Figure 1, at present, the hold down gag that is used for part comprises: be used to compacted 7 the clamping base plate 1 that compresses platform is provided; Be used for compacted 7 fixture that is fixed on the clamping base plate 1, this fixture comprises set bolt 8 and set bolt 8 is fixed on limit screw 9 on the clamping base plate 1; Be set in clamp nut 5 and the packing ring 4 of the integral type on the fixture; To compacted 7 pressing plate that compresses 6; Be used for the above-mentioned pressing plate 6 of balance and the holding screw 2 that matches and nut 3.During work, compacted 7 is placed on the clamping base plate 1, and by fixture compacted 7 is fixed, regulating pressing plate 6 makes it directly contact with compacted 7, then regulate holding screw 3 and nut 3 to pressing plate 6 basic horizontal according to compacted 7 height, last fastening nut 5, thus the clamping process of this hold down gag finished.
But, work in-process, the compression of part often is not only to finish by a hold down gag, and particularly disk part by performing generally adopts 3 uniform compressions, 6 uniform compressions or 4 uniform compressions, and namely hold down gag quantity is more.In using the process of a plurality of hold down gags to compacted compression, require the stress equalization of the compression point of each hold down gag.
During batch production, compacted size is fixed, and depresses pressing plate 6 also by the effect of holding screw 2 and nut 3 with clamp nut 5, realizes to a certain extent pressing plate 6 is pressed down the control of dynamics.But, when being the softer object of material for compacted, often because the bad control of downforce, easily cause because of pressure excessive so that compacted damage by pressure, cause the loss of material.And whenever unload next compacted and when changing another compacted, clamp nut 5 need to be outwarded winding and take out compacted the operator, after compacted of changing placed, regulate again clamp nut 5 and make it finish compression.Since clamp nut 5 can't remember that last time, clamping was adjusted each compress some power position when balanced, therefore so that each clamping all needs to readjust clamp nut 5, this has expended a large amount of production times undoubtedly, has reduced production efficiency.In addition, each adjusting may can not can both reach identical effect because of operator's human factor at every turn, therefore so that the quality of the typical products in mass production of producing is unstable.
In sum, how to change the form of the clamp nut of hold down gag, control the purpose of platen pressure to reach self, become the technical barrier that those skilled in the art needs to be resolved hurrily.
The utility model content
The purpose of this utility model provides a kind of hold down gag, controls the purpose of platen pressure to reach self.
To achieve these goals, the utility model provides following technical scheme:
The purpose of this utility model provides a kind of hold down gag, controls the purpose of platen pressure to reach self.
A kind of hold down gag, comprise the fixture for fixing compacted, also comprise and the limiter nut of described fixture by threaded engagement the friction pair that described limiter nut comprises the threaded inner ring of tool, be used for bearing the shell of external force and be arranged between described inner ring and the described shell and link to each other by frictional force.
Preferably, in the above-mentioned hold down gag, described friction pair is rubber ring, plastic ring or spring leaf.
Preferably, in the above-mentioned hold down gag, described shell is provided with away from an end of the installation end of described limiter nut and described friction pair contact position and limits the limiting component that it slides to described installation end.
Preferably, in the above-mentioned hold down gag, described limiting component comprises and is arranged on the projection that described shell protrudes to described inner ring away from described installation end place and is arranged on the groove that described inner ring one end cooperates with described projection.
Preferably, in the above-mentioned hold down gag, two sides that described inner ring, described friction pair and described shell form are straight side.
Preferably, in the above-mentioned hold down gag, also comprise the packing ring that is arranged between described limiter nut and the described fixture.
Preferably, in the above-mentioned hold down gag, described fixture comprises set bolt and is used for the limit screw of fixing described set bolt.
In technique scheme, the utility model provides a kind of hold down gag, comprise the fixture for fixing compacted, also comprise and the limiter nut of fixture by threaded engagement, the limiter nut comprises the friction pair that the threaded inner ring of tool is used for bearing the shell of external force and is arranged between inner ring and the shell and links to each other by frictional force.When using the utility model, external force at first is applied on the shell, and shell passes to inner ring by coupled friction pair with power, and inner ring is mobile in fixture by threaded engagement, finishes the compression to compacted.Power on being applied to shell is during less than the frictional force of friction pair and shell generation relative sliding, and inner ring will rotate with shell under the effect of friction pair, and slides along fixture, thereby realizes clamping platen or loosen the purpose of pressing plate; Power on being applied to shell is during greater than the frictional force of friction pair generation relative sliding, the situation of " skidding " will appear in inner ring with shell under the effect of friction pair, thereby so that inner ring is not mobile in fixture, namely can't compress compacted again, reach the purpose of restriction platen pressure.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in the utility model embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the hold down gag that Fig. 1 provides for prior art;
The structural representation of the limiter nut that Fig. 2 provides for the utility model embodiment;
The structural representation of the hold down gag that Fig. 3 provides for the utility model embodiment.
The specific embodiment
Core of the present utility model provides a kind of hold down gag, controls the purpose of platen pressure to reach self.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2-Fig. 3, the utility model embodiment discloses a kind of hold down gag, comprise the fixture for fixing compacted 37, also comprise and the limiter nut 35 of fixture by threaded engagement, this limiter nut 35 comprises the threaded inner ring 23 of tool, be used for bearing the shell 21 of external force and be arranged between inner ring 23 and the shell 21 and the friction pair 22 that has linked to each other by having rubbed.
When using the utility model, external force at first is applied on the shell 21, and shell 21 passes to inner ring 23 by coupled friction pair 22 with power, and inner ring 23 is mobile in fixture by threaded engagement, finishes the compression to compacted 37.When the frictional force of relative sliding occurs less than friction pair 22 with shell 21 in the power on being applied to shell 21, inner ring 23 will rotate with shell 21 under the effect of friction pair 22, and slide along fixture, thereby realize clamping platen 36 or loosen the purpose of pressing plate 36; When the frictional force of relative sliding occurs greater than friction pair 22 in the power on being applied to shell 21, the situation of " skidding " will appear in inner ring 23 with shell 21 under the effect of friction pair 22, thereby so that inner ring 21 is not mobile in fixture, namely can't compress compacted 37 again, reach the purpose of restriction pressing plate 36 pressure.
Because the existence of friction pair 22 being arranged, no matter same hold down gag compresses how many times repeatedly, the dynamics that pressing plate 36 presses down all is certain, this means a collection of part of every processing, as long as regulate impaction state when initial workpiece compresses, what individual compacted 37 no matter the back compress repeatedly, and the thrust of this limiter nut 35 is all identical, thereby guaranteed the stability with the quality of a collection of product, and effectively shortened the time of producing.In addition, owing to pressing plate 36 downward pressures limit, so the unsettled situation of thrust can not occur because of operator's feel.
In the specific embodiment, friction pair 22 is rubber ring, plastic ring or spring leaf.The softer friction pair of material 22 is set prevents both in friction process, frictionally damage occurs, and cause the damage of limiter nut 35, so that the increase of production cost.It will be appreciated by persons skilled in the art that the friction pair 22 of other materials can also be set according to different needs, relatively rotate in certain force as long as can satisfy shell 21 and the inner ring 23 of this limiter nut 35.
In order to prevent reaching when itself and friction pair 22 are skidded when external force that limiter nut 35 is subject to, the shell 21 of this limiter nut 35 is owing to the effect of external force makes it break away from friction pair 22 around friction pair 22 rotations, therefore, among the utility model embodiment, be provided with away from the installation end of limiter nut 35 and friction pair 22 contact positions at shell 21 and limit the limiting component that this shell 21 slides to installation end.Setting by limiting component can effectively prevent from breaking away from friction pair 22 at rotary course housing 21.
Preferably, to inner ring 23 projections, inner ring 23 is provided with the groove that matches with above-mentioned projection to shell 21 at the installation end of limiter nut 35, and namely shell 21 and inner ring 23 are realized spacing to shell 21 by the groove that cooperates and projection.In the actual production, shell 21 contacts with inner ring 23, and friction pair 22 is not set herein between the two.Setting has by the way reduced production cost on the one hand, has effectively guaranteed on the other hand the spacing of shell 21.It will be appreciated by persons skilled in the art that between shell 21 and the inner ring 23 that spacing preiection by being arranged on described shell 21 1 ends and the end of inner ring 23 offset, thereby realize the spacing of outer ring.The purpose of the present embodiment is to prevent that shell 21 from coming off from inner ring 23, therefore, so long as the device that can achieve this end is all in protection domain.
In actual production, two sides that inner ring 23, friction pair 22 and shell 21 are formed all are set to straight side.In order to guarantee when this limiter nut 35 is installed, itself and contact area surperficial between compacted 37, to guarantee compacted 37 stressed equilibriums, the present embodiment is by above-mentioned setting, to achieve the goal.
On the basis of technique scheme, also comprise the packing ring 34 that is arranged between limiter nut 35 and the fixture among the utility model embodiment.
Preferably, the fixture that provides in the present embodiment is included as set bolt 38 and limit screw 39.This limit screw 39 is fixed on set bolt 38 on the clamping base plate 31.
When using this hold down gag, at first compacted 37 is placed on the clamping base plate 31, and realize fixing to compacted 37 by set bolt 38 and limit screw 39, regulating pressing plate 36 makes it directly contact with compacted 37, then regulate locknut 33 and holding screw 32 to pressing plate 36 basic horizontal according to compacted 37 height, tighten at last limiter nut 35, thereby finished the clamping process of this hold down gag.
Above hold down gag provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (7)
1. hold down gag, comprise the fixture for fixing compacted (37), it is characterized in that, also comprise and the limiter nut (35) of described fixture by threaded engagement the friction pair (22) that described limiter nut (35) comprises the threaded inner ring of tool (23), be used for bearing the shell (21) of external force and be arranged between described inner ring (23) and the described shell (21) and link to each other by frictional force.
2. hold down gag according to claim 1 is characterized in that, described friction pair (22) is rubber ring, plastic ring or spring leaf.
3. hold down gag according to claim 1 is characterized in that, described shell (21) is provided with away from an end of the installation end of described limiter nut (35) and described friction pair (22) contact position and limits the limiting component that it slides to described installation end.
4. hold down gag according to claim 3, it is characterized in that, described limiting component comprises and is arranged on the projection that described shell (21) protrudes to described inner ring (23) away from described installation end place and is arranged on the groove that described inner ring (23) one ends cooperate with described projection.
5. hold down gag according to claim 1 is characterized in that, two sides that described inner ring (23), described friction pair (22) and described shell (21) form are straight side.
6. hold down gag according to claim 1 is characterized in that, also comprises the packing ring (34) that is arranged between described limiter nut (35) and the described fixture.
7. hold down gag according to claim 1 is characterized in that, described fixture comprises set bolt (38) and is used for the limit screw (39) of fixing described set bolt (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357965 CN202846178U (en) | 2012-07-23 | 2012-07-23 | Pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357965 CN202846178U (en) | 2012-07-23 | 2012-07-23 | Pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202846178U true CN202846178U (en) | 2013-04-03 |
Family
ID=47977414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220357965 Expired - Fee Related CN202846178U (en) | 2012-07-23 | 2012-07-23 | Pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202846178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187464A (en) * | 2019-06-03 | 2019-08-30 | 北京科益虹源光电技术有限公司 | A kind of prism clamping fixture with safeguard structure of no pivoting friction |
-
2012
- 2012-07-23 CN CN 201220357965 patent/CN202846178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187464A (en) * | 2019-06-03 | 2019-08-30 | 北京科益虹源光电技术有限公司 | A kind of prism clamping fixture with safeguard structure of no pivoting friction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CATIC HUNAN GENERAL AVIATION ENGINE CO.,LTD. Assignor: CHINA SOUTHERN AIRLINES INDUSTRY (GROUP) Co.,Ltd. Contract record no.: 2013430000143 Denomination of utility model: Compacting device Granted publication date: 20130403 License type: Exclusive License Record date: 20130821 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412000 Dong Jiaduo, Lusong District, Zhuzhou City, Hunan Province Patentee after: AECC SOUTH INDUSTRY Co.,Ltd. Address before: 412000 Dong Jiaduo, Lusong District, Zhuzhou City, Hunan Province Patentee before: CHINA SOUTHERN AIRLINES INDUSTRY (GROUP) Co.,Ltd. |
|
| 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: 20130403 Termination date: 20210723 |