CN106311925A - Self-locking nut three-point closing die - Google Patents
Self-locking nut three-point closing die Download PDFInfo
- Publication number
- CN106311925A CN106311925A CN201610476428.2A CN201610476428A CN106311925A CN 106311925 A CN106311925 A CN 106311925A CN 201610476428 A CN201610476428 A CN 201610476428A CN 106311925 A CN106311925 A CN 106311925A
- Authority
- CN
- China
- Prior art keywords
- closing
- cover plate
- die
- self
- locking nut
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a self-locking nut three-point closing die. The self-locking nut three-point closing die comprises an upper die body and a lower die body. The lower die body comprises a cover plate, a fixed sleeve, an outer sleeve and a base. The upper die body and the cover plate are matched in shape and size. The outer sleeve is fixedly arranged on the base. The fixed sleeve is fixedly mounted in the middle of the portion, in the outer sleeve, of the base. A cylindrical containing region is arranged on the upper portion of the fixed sleeve inwards along the center of the upper surface. Three closing die bodies which are oppositely arranged and arranged at an angle of 120 degrees relative to one another are horizontally arranged on the side wall of the cylindrical containing region. The cover plate is arranged above the fixed sleeve. The cover plate is fixedly connected with the base through an extending-and-contracting moving mechanism. Under the pressure of the upper die body, the cover plate can move up and down along the extending-and-contracting moving mechanism; and the three closing die bodies can move towards the axis of the fixed sleeve at the same time under the acting force of the cover plate. The three-point closing die is simple in structure, small in size, convenient to operate and better in closing effect.
Description
Technical field
The present invention relates to a kind of 3 closing-in moulds of self-locking nut.
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, it closes up is after technique makes nut the most routinely, the closing in position of this nut is extruded by the method using extruding, the screw making closing in position radially produces plastic deformation, and make the screw radial dimension radial dimension less than the screw rod being attached thereto at closing in position, during so that the screw rod being connected with this nut enters into the deformation screw of this nut, because radial pressure produced by the elastic deformation of screw makes nut closely link together with screw rod and reach locking purpose.The crimp mode that self-locking nut crimping is used generally includes two big classes: face contact is closed up and point cantact closes up.Closing up for face contact, it includes oval close up and rectangle closes up, its principle be by frock the end of thread of nut is squeezed into ellipse, rectangle and close up.Closing up for point cantact, it includes that two point form closes up and bikini closes up, and its principle is by the end of thread crimp of nut by pressure head.Existing 3 closing devices operate with inconvenience, if unbalance stress, it is impossible to ensureing that 3 closing ins are carried out simultaneously, and then cause closing in weak effect, conforming product rate would be low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of 3 closing-in moulds of the more preferable self-locking nut of closing in effect.
In order to solve above-mentioned technical problem, the technical scheme that the present invention provides is as follows: a kind of 3 closing-in moulds of self-locking nut, and including upper die and lower die, described lower mold includes a cover plate, a fixed cover, an overcoat and a base, the geomery of described upper mold is consistent with cover plate coupling
One overcoat, described overcoat is fixedly installed on base；
One fixed cover, described fixed cover is fixedly mounted in overcoat on the centre position of base, described fixed cover top is inwardly provided with cylindricality accommodating area along the center of upper surface, and described cylindricality accommodating area sidewall is horizontally disposed with three relative mutual Closing in die in hexagonal angle of head；
One cover plate, described cover plate is arranged on above fixed cover, described cover plate connects by scalable motion and base are fixing, described scalable motion includes bolt column and the first spring being arranged on bolt column, it is provided with installing hole on described base, be correspondingly arranged on screwed hole on described cover plate with installing hole, be connected fixing with screwed hole is stretched into from installing hole in the upper end of described bolt column, and the length that described bolt column is deep in installing hole is less than the degree of depth of installing hole；
The tail end of described Closing in die is provided with the first inclined-plane, is provided with the second inclined-plane bottom described cover plate, and the width on described second inclined-plane connects in the contact that can relatively slide more than the width on the first inclined-plane, described first inclined-plane and the second inclined-plane.Described cover plate can move up and down along scalable motion under the pressure of upper mold,
Described three Closing in die can be simultaneously to the axe movement of fixed cover under the active force of cover plate.
Further, the position between afterbody and the fixed cover outer surface of described Closing in die is provided with the second spring.Second spring can make Closing in die coordinate the bilateral reciprocation simultaneously that pumps of cover plate, and the nut in coupled columns shape accommodating area closes up.
Further, the head of described Closing in die is taper, and head end is provided with circular protrusions.The head of taper and the structure of circular protrusions make the active force in closing in more concentrate, it is possible to reach the required precision closed up more accurately.
Further, the sidewall of described cylindricality accommodating area being provided with three fan-shaped locating pieces, described three Closing in die are correspondingly arranged in three fan-shaped locating pieces respectively.Three Closing in die are arranged in three locating pieces, make the stress of Closing in die more synchronize to concentrate.
Further, described cylindricality accommodating area is shaped as regular prism.Regular prism can be the shapes such as positive Rhizoma Sparganii, positive four ribs, positive six ribs and positive eight ribs, can be arranged in mould use according to the fixed cover of the concrete multiple coupling of nut shape size design by demand.
Further, the position, center of described cover plate is provided with the internal diameter material taking mouth more than cylindricality accommodating area internal diameter.Conveniently after closing in completes, nut is taken out.
A kind of 3 closing-in moulds of self-locking nut of the present invention, have the advantage that
1, three Closing in die are mutually arranged on fixed cover in hexagonal angle, when upper mold is depressed on cover plate, cover plate entirety stress presses downwards fixed cover, Closing in die tail end on fixed cover is provided with the first inclined-plane, the second inclined-plane it is provided with bottom cover plate, the width on the second inclined-plane is more than the width on the first inclined-plane and both are in the contact connection that can relatively slide, three Closing in die are evenly arranged, it is identical to three Closing in die active forces when cover plate moves downward, move to axle center, cylindricality accommodating area after three Closing in die stress simultaneously simultaneously, the nut being placed in cylindricality accommodating area is closed up, owing to the stress of three Closing in die is identical, closing in is kept strokes, nut is made to be reached high unity by the deflection at the place of closing in, substantially increase the qualification rate of product；
2, it is provided with the second spring on the position between afterbody and the fixed cover outer surface of each Closing in die, second spring can make Closing in die coordinate the bilateral reciprocation simultaneously that pumps of cover plate, fast automatic reset after making the nut in Closing in die coupled columns shape accommodating area close up, improves the work efficiency of whole closing in operation；
3, can design have multiple fixed covers of difformity cylindricality accommodating area as standby according to product specification needs, the nut of different size is closed up by convenient being used for；
4, the simple in construction of whole closing-in mould, volume is little, more convenient operation.
Accompanying drawing explanation
Fig. 1 is the perspective view of embodiment；
Fig. 2 is the structural representation of the fixed cover described in embodiment；
Fig. 3 is the profile of embodiment；
Fig. 4 is the structural representation of the Closing in die described in embodiment；
Wherein 1-upper mold, 2-cover plate, 3-overcoat, 4-base, 5-material taking mouth, 6-sector locating piece, 7-cylindricality accommodating area, 8-bolt column, 9-the first spring, 10-Closing in die, 11-the second spring, 12-fixed cover, 13-the first inclined-plane, 14-the second inclined-plane, 15-circular protrusions, 16-installing hole, 17-screwed hole.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment as shown in Figure 1 is a kind of 3 closing-in moulds of self-locking nut, including upper mold 1 and lower mold, described lower mold includes cover plate 2, fixed cover 12, overcoat 3 and a base 4, the geomery of described upper mold 1 mates consistent with cover plate 2, one overcoat 3, described overcoat 3 is fixedly installed on base 4.
As shown in Figure 3, described fixed cover 12 is fixedly mounted in overcoat 3 on the centre position of base 4, described fixed cover 12 top is inwardly provided with cylindricality accommodating area 7 along the center of upper surface, and described cylindricality accommodating area 7 sidewall is horizontally disposed with three relative mutual Closing in die 10 in hexagonal angle of head.
As shown in Figure 3, described cover plate 2 is arranged on above fixed cover 12, described cover plate 2 is by scalable motion and the fixing connection of base 4, described scalable motion includes bolt column 8 and the first spring 9 being arranged on bolt column 8, it is provided with installing hole 16 on described base 4, it is correspondingly arranged on screwed hole 17 with installing hole 16 on described cover plate 2, be connected fixing with screwed hole 17 is stretched into from installing hole 16 in the upper end of described bolt column 8, and the length that described bolt column 8 is deep in installing hole 16 is less than the degree of depth of installing hole 16.
Described cover plate 2 can move up and down along scalable motion under the pressure of upper mold 1.
As shown in Figure 3 and Figure 4, the tail end of described Closing in die 10 is provided with the first inclined-plane 13, being provided with the second inclined-plane 14 bottom described cover plate 2, the width on described second inclined-plane 14 connects in the contact that can relative slide more than the width on the first inclined-plane 13, described first inclined-plane 13 and the second inclined-plane 14.
Described three Closing in die 10 can be simultaneously to the axe movement of fixed cover 12 under the active force of cover plate 2.
Described scalable motion includes bolt column 8 and the first spring 9 being arranged on bolt column 8, it is provided with installing hole 16 on described base 4, it is correspondingly arranged on screwed hole 17 with installing hole 16 on described cover plate 2, be connected fixing with screwed hole 17 is stretched into from installing hole 16 in the upper end of described bolt column 8, and the length that described bolt column 8 is deep in installing hole 16 is less than the degree of depth of installing hole 16.
It is provided with the second spring 11 on position between afterbody and fixed cover 12 outer surface of described Closing in die 10.Second spring 11 can make Closing in die 10 coordinate the bilateral reciprocation simultaneously that pumps of cover plate 2, and the nut in coupled columns shape accommodating area 7 closes up.
As shown in Figure 4, the head of described Closing in die 10 is taper, and head end is provided with circular protrusions 15.The head of taper and the structure of circular protrusions make the active force in closing in more concentrate, it is possible to reach the required precision closed up more accurately.
As in figure 2 it is shown, be provided with three fan-shaped locating pieces 6 on the sidewall of described cylindricality accommodating area 7, described three Closing in die 10 are correspondingly arranged in three fan-shaped locating pieces 6 respectively.Three Closing in die are arranged in three locating pieces, make the stress of Closing in die more synchronize to concentrate.
As in figure 2 it is shown, described cylindricality accommodating area 7 is shaped as positive six prisms.Regular prism can also be the shapes such as positive Rhizoma Sparganii, positive four ribs or positive eight ribs, can be arranged in mould use according to the fixed cover of the concrete multiple coupling of nut shape size design by demand.
The position, center of described cover plate 2 is provided with the internal diameter material taking mouth 5 more than cylindricality accommodating area 7 internal diameter.Conveniently after closing in completes, nut is taken out.
nullThe specific works process of 3 closing-in moulds of a kind of self-locking nut described in above-described embodiment is: first need the accommodating area 7 that the hexagonal flange nut closed up puts into positive hexagon from material taking mouth 5 by one，Upper mold 1 is connected with force application apparatus，Upper mold 1 moves downward punching press cover plate 2，Move downward after cover plate 2 stress，The second inclined-plane 14 bottom cover plate 2 contacts with the first inclined-plane 13 of Closing in die afterbody on fixed cover and relatively slides，In sliding process, the second inclined-plane 14 produces the active force towards Closing in die 10 head to the first inclined-plane 13 relatively，Promote the Closing in die 10 axe movement to cylindricality accommodating area 7，The circular protrusions 15 of Closing in die 10 head carries out punching press to three sides of hex nut makes it produce certain deformation，After upper mold 1 is lifted out cover plate 2，Cover plate 2 upwards resets，Three Closing in die 10 also homing the most to the left，Complete the closing in operation to hexagonal flange nut.
In a word, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (6)
1. 3 closing-in moulds of self-locking nut, including upper die and lower die, it is characterised in that: described lower mold includes a cover plate, a fixed cover, an overcoat and a base, and the geomery of described upper mold is consistent with cover plate coupling,
One overcoat, described overcoat is fixedly installed on base；
One fixed cover, described fixed cover is fixedly mounted in overcoat on the centre position of base, described fixed cover top is inwardly provided with cylindricality accommodating area along the center of upper surface, and described cylindricality accommodating area sidewall is horizontally disposed with three relative mutual Closing in die in hexagonal angle of head；
One cover plate, described cover plate is arranged on above fixed cover, and described cover plate connects by scalable motion and base are fixing；Described scalable motion includes bolt column and the first spring being arranged on bolt column, it is provided with installing hole on described base, it is correspondingly arranged on screwed hole with installing hole on described cover plate, be connected fixing with screwed hole is stretched into from installing hole in the upper end of described bolt column, and the length that described bolt column is deep in installing hole is less than the degree of depth of installing hole；
The tail end of described Closing in die is provided with the first inclined-plane, is provided with the second inclined-plane bottom described cover plate, and the width on described second inclined-plane connects in the contact that can relatively slide more than the width on the first inclined-plane, described first inclined-plane and the second inclined-plane.
A kind of 3 closing-in moulds of self-locking nut the most according to claim 1, it is characterised in that: it is provided with the second spring on the position between afterbody and the fixed cover outer surface of described Closing in die.
A kind of 3 closing-in moulds of self-locking nut the most according to claim 1, it is characterised in that: the head of described Closing in die is taper, and head end is provided with circular protrusions.
4. according to 3 closing-in moulds of a kind of self-locking nut described in any one of claim 1-3, it is characterised in that: being provided with three fan-shaped locating pieces on the sidewall of described cylindricality accommodating area, described three Closing in die are correspondingly arranged in three fan-shaped locating pieces respectively.
A kind of 3 closing-in moulds of self-locking nut the most according to claim 4, it is characterised in that: described cylindricality accommodating area is shaped as regular prism.
6. according to 3 closing-in moulds of a kind of self-locking nut described in claim 1 or 2 or 3 or 5, it is characterised in that: the position, center of described cover plate is provided with the internal diameter material taking mouth more than cylindricality accommodating area internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476428.2A CN106311925B (en) | 2016-06-27 | 2016-06-27 | A kind of 3 closing-in moulds of self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476428.2A CN106311925B (en) | 2016-06-27 | 2016-06-27 | A kind of 3 closing-in moulds of self-locking nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311925A true CN106311925A (en) | 2017-01-11 |
| CN106311925B CN106311925B (en) | 2018-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610476428.2A Active CN106311925B (en) | 2016-06-27 | 2016-06-27 | A kind of 3 closing-in moulds of self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106311925B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193565A (en) * | 2019-06-28 | 2019-09-03 | 中国航空工业标准件制造有限责任公司 | Adhered umbilical point closing in block |
| CN114653850A (en) * | 2022-02-24 | 2022-06-24 | 沈阳航天新光集团有限公司 | Shell nut closing-in die and closing-in method |
| CN117655219A (en) * | 2023-12-18 | 2024-03-08 | 汇润机电有限公司 | Closing-in and tangential-point integrated tool of fuel pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3084359A (en) * | 1956-12-13 | 1963-04-09 | Grip Nut Co | Machine for indenting nut sides to produce locking portions therein |
| JPS5671549A (en) * | 1979-11-13 | 1981-06-15 | Sakamura Kikai Seisakusho:Kk | Manufacture of locking nut |
| CN201693097U (en) * | 2010-05-20 | 2011-01-05 | 贵州航天精工制造有限公司 | Self-locking nut-crimping device utilizing pressure of thread rolling machine as power source |
| CN201979015U (en) * | 2010-12-02 | 2011-09-21 | 贵州航太精密制造有限公司 | Nut closing-in device |
| CN204247863U (en) * | 2014-12-03 | 2015-04-08 | 西安亚太航空技术有限公司 | Closely locking nut closing device |
| CN104959483A (en) * | 2015-05-19 | 2015-10-07 | 中国南方航空工业(集团)有限公司 | Method for forming slotted self-locking nut and device |
| CN204735689U (en) * | 2015-06-10 | 2015-11-04 | 中航动力株洲航空零部件制造有限公司 | Self -locking nut close device |
| CN205324481U (en) * | 2016-01-13 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | Flared type tightens up nut and pipe joint's binding off mould |
| CN205834050U (en) * | 2016-06-27 | 2016-12-28 | 七丰精工科技股份有限公司 | A kind of 3 closing-in moulds of self-locking nut |
-
2016
- 2016-06-27 CN CN201610476428.2A patent/CN106311925B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3084359A (en) * | 1956-12-13 | 1963-04-09 | Grip Nut Co | Machine for indenting nut sides to produce locking portions therein |
| JPS5671549A (en) * | 1979-11-13 | 1981-06-15 | Sakamura Kikai Seisakusho:Kk | Manufacture of locking nut |
| CN201693097U (en) * | 2010-05-20 | 2011-01-05 | 贵州航天精工制造有限公司 | Self-locking nut-crimping device utilizing pressure of thread rolling machine as power source |
| CN201979015U (en) * | 2010-12-02 | 2011-09-21 | 贵州航太精密制造有限公司 | Nut closing-in device |
| CN204247863U (en) * | 2014-12-03 | 2015-04-08 | 西安亚太航空技术有限公司 | Closely locking nut closing device |
| CN104959483A (en) * | 2015-05-19 | 2015-10-07 | 中国南方航空工业(集团)有限公司 | Method for forming slotted self-locking nut and device |
| CN204735689U (en) * | 2015-06-10 | 2015-11-04 | 中航动力株洲航空零部件制造有限公司 | Self -locking nut close device |
| CN205324481U (en) * | 2016-01-13 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | Flared type tightens up nut and pipe joint's binding off mould |
| CN205834050U (en) * | 2016-06-27 | 2016-12-28 | 七丰精工科技股份有限公司 | A kind of 3 closing-in moulds of self-locking nut |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193565A (en) * | 2019-06-28 | 2019-09-03 | 中国航空工业标准件制造有限责任公司 | Adhered umbilical point closing in block |
| CN114653850A (en) * | 2022-02-24 | 2022-06-24 | 沈阳航天新光集团有限公司 | Shell nut closing-in die and closing-in method |
| CN117655219A (en) * | 2023-12-18 | 2024-03-08 | 汇润机电有限公司 | Closing-in and tangential-point integrated tool of fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106311925B (en) | 2018-12-07 |
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