CN204247864U - The closing device of self-locking nut - Google Patents
The closing device of self-locking nut Download PDFInfo
- Publication number
- CN204247864U CN204247864U CN201420752355.1U CN201420752355U CN204247864U CN 204247864 U CN204247864 U CN 204247864U CN 201420752355 U CN201420752355 U CN 201420752355U CN 204247864 U CN204247864 U CN 204247864U
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- CN
- China
- Prior art keywords
- closing
- positioning sleeve
- nut
- self
- locking key
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Abstract
A kind of closing device of self-locking nut, it is characterized in that, it comprises a closing in part, positioning sleeve, locking key and driving mechanism, the keeper and mounting groove of fixedly treating closing in nut is provided with in described positioning sleeve, described locking key activity runs through on described positioning sleeve, its one end is located at outside positioning sleeve, its other end is positioned at the mounting groove of positioning sleeve, the axis perpendicular of described locking key and described positioning sleeve, described closing in part is provided with wedge shape inwall, it is connected with described driving mechanism, this closing in part is sheathed on outside described positioning sleeve, when described closing in part moves under driving mechanism drives, the wedge shape inwall of described closing in part extrudes described locking key and forces locking key to move radially to positioning sleeve center, thus treating closing in nut sidewall and carrying out extruding closing in nut in positioning sleeve is located in extruding.The utility model solves existing closing device the self-locking nut of compatible multiple different size can not carry out the problem that closes up, and effectively improves closing in efficiency and closing in precision.
Description
[technical field]
The utility model is created and is belonged to machine components manufacture field, especially relates to a kind of self-locking nut-crimping device.
[background technology]
Self-locking nut is as a kind of conventional securing member, and major function is exactly locking, antivibration.The self-locking closing in nut used in the industries such as Aero-Space, its closing in is after formerly technique makes nut routinely, the closing in position of method to this nut of extruding is adopted to extrude, the screw at closing in position is made radially to produce plastic deformation, and make the screw radial dimension at closing in position be less than the radial dimension of the screw rod be attached thereto, thus when making the screw rod be connected with this nut enter into the distortion screw of this nut, the radial pressure that the elastic deformation because of screw produces makes nut closely link together with screw rod and reaches locking object.The crimp mode that self-locking nut crimping adopts generally includes two large classes: face contact is closed up and point cantact closes up.Close up for face contact, it comprises oval closing in and rectangle closing in, and its principle the end of thread of nut is squeezed into ellipse, rectangle and closing up by frock.Close up for point cantact, it comprises two point form and closes up and bikini closing in, and its principle is by the end of thread crimp of pressure head by nut.Existing closing device typically uses two pieces of identical closing in blocks, after cutting out closing in die cavity therebetween, by the guide pillar guiding of two on closing in block, then nut is treated that closing in end is put in die cavity, closes up to nut when two closing in blocks close up.This mode also exists many shortcomings, and it can only be used for rectangle and oval to close up, cannot the nut of compatible multiple different size size, thus limits its scope of application.In addition, existing closing device closing in efficiency is low, cannot meet batch user demand.
[utility model content]
The utility model is intended to solve the problem, and provides a kind of closing in that can be used for plurality of specifications self-locking nut, can improve closing in efficiency and precision, and can solve the self-locking nut-crimping device of existing closing in mode weak point.
For achieving the above object, the utility model provides a kind of closing device of self-locking nut, it is characterized in that, it comprises a closing in part, positioning sleeve, locking key and driving mechanism, the keeper and mounting groove of fixedly treating closing in nut is provided with in described positioning sleeve, described locking key activity runs through on described positioning sleeve, its one end is located at outside positioning sleeve, its other end is positioned at the mounting groove of positioning sleeve, the axis perpendicular of described locking key and described positioning sleeve, described closing in part is provided with wedge shape inwall, it is connected with described driving mechanism, this closing in part is sheathed on outside described positioning sleeve, when described closing in part moves under driving mechanism drives, the wedge shape inwall of described closing in part extrudes described locking key and forces locking key to move radially to positioning sleeve center, thus treating closing in nut sidewall and carrying out extruding closing in nut in positioning sleeve is located in extruding.
Cylindrically, described keeper is in the center being vertically located at mounting groove for described positioning sleeve.
Described keeper is can with the screw treating closing in nut screw connection.
The rounded blocks of described closing in part, it is provided with the wedge-shaped slot of wealthy mouth, and the wall of described wedge-shaped slot forms the described wedge shape inwall that can extrude locking key.
The sidewall of described positioning sleeve is interval with several locking key installing holes, and described locking key runs through to be located in described locking key installing hole.
Described driving mechanism comprises drive motors, screw mandrel, feed screw nut and guide pillar, one end of described screw mandrel is connected with drive motors, it can rotate under the driving of drive motors, described feed screw nut is sheathed on described screw mandrel, it can move along screw mandrel, one end and the feed screw nut of described guide pillar are affixed, and it is located at described screw mandrel both sides, and the other end and the described closing in part of described guide pillar are affixed.
Described screw mandrel is arranged in vertical.
Described guide pillar uniform intervals is located at outside described screw mandrel, and the bottom of its top and described closing in part is affixed.
Described guide pillar is provided with line slideway auxiliary, and described line slideway auxiliary comprises line slideway and slide block provided thereon, described slide block and described guide pillar affixed, described line slideway and described closing in part affixed.
Favorable attributes of the present utility model is, it efficiently solves the problems referred to above, and solving existing closing device the self-locking nut of compatible multiple different size can not carry out the problem that closes up, and effectively improves closing in efficiency and closing in precision.The utility model has the closing in part of wealthy mouth wedge-shaped slot by arranging, utilize its wedge shape inwall extruding locking key when closing in part moves and make locking key moving radially towards positioning sleeve, thus extruding is located at the self-locking nut at positioning sleeve center to close up.Because closing in part of the present utility model is movement automatically under the driving of driving mechanism, therefore its closing in efficiency is high, is installed conveniently, is suitable for batch machining and uses.In addition, the utility model is externally connected to line slideway auxiliary closing in part, bottom closing in part, be connected with guide pillar, and its dual support effectively can reduce displacement difference, reduces cumulative errors, thus effectively improves closing in precision.The utility model has novel structure, convenient and practical feature, should widely popularize.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model.
Wherein, closing in part 1, wedge shape inwall 11, wedge-shaped slot 12, positioning sleeve 2, mounting groove 21, locking key 3, driving mechanism 4, drive motors 41, screw mandrel 42, feed screw nut 43, guide pillar 44, line slideway 45, slide block 46.
[detailed description of the invention]
The following example is to further explanation of the present utility model and supplements, and does not constitute any limitation the utility model.
Self-locking nut-crimping device of the present utility model comprises closing in part 1, positioning sleeve 2, locking key 3, driving mechanism 4.
As shown in Figure 1, described driving mechanism 4 comprises drive motors 41, ball screw 42, guide pillar 44, line slideway 45 pair.Described drive motors 41 comprises servomotor and reductor.Bottom of device is located at by described servomotor, and it can be fixed on electric machine support or motor housing, and it is for providing driving force.Described deceleration electricity is connected with described servomotor, and it is for slowing down the output of servomotor, with satisfied closing in demand.
As shown in Figure 1, described ball screw 42 comprises screw mandrel 42 and feed screw nut 43, and it can select known ball screw 42.Described screw mandrel 42 is arranged in vertical, and its one end is connected with described reductor, and its other end is free end.Described screw mandrel 42 can rotate under the driving of drive motors 41.Described nut sleeve is located on described screw mandrel 42, and it can move up and down along screw mandrel 42 when screw mandrel 42 rotates.
As shown in Figure 1, described guide pillar 44 for supporting described closing in part 1, to drive closing in part 1 synchronizing moving.One end and the described feed screw nut 43 of described guide pillar 44 are affixed, and it is distributed in the surrounding of screw mandrel 42, and parallel with screw mandrel 42.For stable transmission, described guide pillar 44 can be symmetrically set in the surrounding of screw mandrel 42.In the present embodiment, it is arranged with four guide pillars 44.The other end of described guide pillar 44, namely top and described closing in part 1 affixed.Particularly, be provided with screwed hole in the bottom of described closing in part 1, the top of described guide pillar 44 is provided with external screw thread, and it is threadedly connected to the bottom of described closing in part 1, thus affixed with described closing in part 1.
As shown in Figure 1, described closing in part 1 makes locking key 3 move radially to extrude self-locking nut to close up for extruding locking key 3.In the present embodiment, the rounded blocks of described closing in part 1, its center is provided with the wedge-shaped slot 12 of wealthy mouth, and the wedge shape inwall 11 of described wedge-shaped slot 12 can make locking key 3 move radially owing to having angle of inclination.Be provided with through hole at the center of described wedge-shaped slot 12, it is for installing positioning sleeve 2.
Described positioning sleeve 2 is located in the through hole of described closing in part 1 central authorities, and it runs through described closing in part 1.The top of this positioning sleeve 2 is positioned at described wedge-shaped slot 12, is located in space that described guide pillar 44 encloses bottom it.The keeper and mounting groove 21 of fixedly treating closing in nut is provided with in the central authorities of described positioning sleeve 2.Described mounting groove 21 with treat that the shape of closing in nut and size match, it is positioned at top or the middle and upper part of positioning sleeve 2.Described keeper is vertically fixed on the central authorities of described mounting groove 21.In the present embodiment, described keeper is can with the screw treating closing in nut screw connection.According to difformity and the model for the treatment of closing in nut, different keepers and positioning sleeve 2 can be selected to support the use with it, thus the self-locking nut that can be common to different model close up.The sidewall of described positioning sleeve 2 is provided with several locking key installing holes, and it is for installing locking key 3.Described locking key installing hole runs through described positioning sleeve 2, and with the axis perpendicular of described positioning sleeve 2.The quantity of described locking key installing hole can be arranged according to due-in stomion number.Such as, for needing 3 self-locking nuts closed up, 3 locking key installing holes can be set on described positioning sleeve 2 sidewall.In addition, also symmetry can offer multiple locking key installing hole, with general from different closing in demands, such as predeterminable 12 locking key installing holes, make its can simultaneously for 2 closing ins, 3 closing ins, 4 close up.
Described locking key 3 is installed in described locking key installing hole, and it treats closing in nut for extruding to be located in positioning sleeve 2, makes treat the crimp of closing in nut and close up.Described locking key 3 is elongated, the mating shapes of itself and described locking key installing hole, it runs through described locking key installing hole, and its one end is positioned at the wedge-shaped slot 12 of described closing in part 1, its other end is positioned at the mounting groove 21 of described positioning sleeve 2, and can move along locking key installing hole.
Described line slideway 45 pair is used for improving closing in precision further, and it can select known line slideway 45 secondary.The slide block 46 that this line slideway 45 pair comprises line slideway 45 and is located on line slideway 45.Described slide block 46 is affixed with described guide pillar 44, described line slideway 45 is affixed with described closing in part 1, thus can meet closing in part 1 synchronous with guide pillar 44 on when moving, can also ensure that closing in part 1 lateral displacement does not occur further, to reduce cumulative errors, improve closing in precision.
By this, self-locking nut-crimping device of the present utility model is just defined.During use, will treat on the keeper that closing in nut is installed in positioning sleeve 2, then open drive motors 41.When drive motors 41 drive guide pillar 44 moves time, described closing in part 1 moves, its wedge shape inwall 11 just can constantly extrude locking key 3 and locking key 3 be moved towards the center of positioning sleeve 2, treats closing in nut, make to treat the crimp of closing in nut and the closing in effect reaching expectation to extrude to be located in positioning sleeve 2.Because closing in part 1 moves under the driving of drive motors 41, it closes up rapidly, can greatly improve closing in efficiency, to meet batch machining demand.In addition, because locking key 3, keeper and positioning sleeve 2 can be changed according to the model treating closing in nut, therefore its self-locking nut that can meet different cultivars and specification closes up, its highly versatile, has very strong practicality.Though self-locking nut-crimping device of the present utility model is electronic closing in, its transmission link is few, and cumulative errors are little, greatly can improve the gap error between parts, ensures closing in precision.
Although disclosed the utility model by above embodiment, but scope of the present utility model is not limited thereto, under the condition not departing from the utility model design, above each component can be replaced with the similar or equivalent element that art personnel understand.
Claims (9)
1. the closing device of a self-locking nut, it is characterized in that, it comprises a closing in part (1), positioning sleeve (2), locking key (3) and driving mechanism (4), the keeper fixedly treating closing in nut and mounting groove (21) is provided with in described positioning sleeve (2), described locking key (3) activity runs through on described positioning sleeve (2), positioning sleeve (2) is located at outward in its one end, its other end is positioned at the mounting groove (21) of positioning sleeve (2), the axis perpendicular of described locking key (3) and described positioning sleeve (2), described closing in part (1) is provided with wedge shape inwall (11), it is connected with described driving mechanism (4), this closing in part (1) is sheathed on described positioning sleeve (2) outward, when described closing in part (1) is mobile under driving mechanism (4) drives, the wedge shape inwall (11) of described closing in part (1) extrudes described locking key (3) and forces locking key (3) to move radially to positioning sleeve (2) center, thus treating closing in nut sidewall and carrying out extruding closing in nut in positioning sleeve (2) is located in extruding.
2. self-locking nut-crimping device as claimed in claim 1, is characterized in that, cylindrically, described keeper is in the center being vertically located at mounting groove (21) for described positioning sleeve (2).
3. self-locking nut-crimping device as claimed in claim 2, it is characterized in that, described keeper is can with the screw treating closing in nut screw connection.
4. self-locking nut-crimping device as claimed in claim 3, it is characterized in that, the rounded blocks of described closing in part (1), it is provided with the wedge-shaped slot (12) of wealthy mouth, and the wall of described wedge-shaped slot (12) forms the described wedge shape inwall (11) that can extrude locking key (3).
5. self-locking nut-crimping device as claimed in claim 4, it is characterized in that, the sidewall of described positioning sleeve (2) is interval with several locking key installing holes, described locking key (3) runs through to be located in described locking key installing hole.
6. self-locking nut-crimping device as claimed in claim 5, it is characterized in that, described driving mechanism (4) comprises drive motors (41), screw mandrel (42), feed screw nut (43) and guide pillar (44), one end of described screw mandrel (42) is connected with drive motors (41), it can rotate under the driving of drive motors (41), described feed screw nut (43) is sheathed on described screw mandrel (42), it can be mobile along screw mandrel (42), one end and the feed screw nut (43) of described guide pillar (44) are affixed, it is located at described screw mandrel (42) both sides, the other end and the described closing in part (1) of described guide pillar (44) are affixed.
7. self-locking nut-crimping device as claimed in claim 6, is characterized in that, described screw mandrel (42) is arranged in vertical.
8. self-locking nut-crimping device as claimed in claim 7, is characterized in that, described guide pillar (44) uniform intervals is located at described screw mandrel (42) outside, and the bottom of its top and described closing in part (1) is affixed.
9. self-locking nut-crimping device as claimed in claim 8, it is characterized in that, described guide pillar (44) is provided with line slideway (45) secondary, described line slideway (45) pair comprises line slideway (45) and slide block provided thereon (46), described slide block (46) is affixed with described guide pillar (44), and described line slideway (45) is affixed with described closing in part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752355.1U CN204247864U (en) | 2014-12-03 | 2014-12-03 | The closing device of self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752355.1U CN204247864U (en) | 2014-12-03 | 2014-12-03 | The closing device of self-locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204247864U true CN204247864U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752355.1U Expired - Fee Related CN204247864U (en) | 2014-12-03 | 2014-12-03 | The closing device of self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204247864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695237A (en) * | 2017-10-23 | 2018-02-16 | 中国航发成都发动机有限公司 | One kind is used for the necking of aero-engine tube assembly pipe end nut and receives pressure device |
-
2014
- 2014-12-03 CN CN201420752355.1U patent/CN204247864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695237A (en) * | 2017-10-23 | 2018-02-16 | 中国航发成都发动机有限公司 | One kind is used for the necking of aero-engine tube assembly pipe end nut and receives pressure device |
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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: 20150408 Termination date: 20171203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |