CN106608072B - Press air cushion locking nut anti-loose structure - Google Patents
Press air cushion locking nut anti-loose structure Download PDFInfo
- Publication number
- CN106608072B CN106608072B CN201710134281.3A CN201710134281A CN106608072B CN 106608072 B CN106608072 B CN 106608072B CN 201710134281 A CN201710134281 A CN 201710134281A CN 106608072 B CN106608072 B CN 106608072B
- Authority
- CN
- China
- Prior art keywords
- air cushion
- locking nut
- pin
- pin hole
- connecting plate
- 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.)
- Active
Links
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/08—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a cap interacting with the nut, connected to the bolt by a pin or cotter pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
Abstract
The present invention relates to a kind of press air cushion locking nut anti-loose structures in press technologies field, its original air cushion locking nut is used smear the locking glue of anaerobism or beat junction of the edges of two sheets of paper screw anti-loose structure be changed to be connected as one air cushion pull rod, connecting plate and locking nut with pin it is locking to achieve the purpose that, locking nut rotation meets in the range of pretightning force requirement, enabling can ensure on connecting plate and locking nut there are two pin hole face and be packed into pin always, avoid air cushion failure caused by being loosened, fallen off due to locking nut.To substantially increase press utilization rate, the interests of user are ensure that, the configuration of the present invention is simple is reasonable, has very strong practicability and apparent economic benefit.
Description
Technical field
The present invention relates to a kind of press air cushion locking nut anti-loose structures, belong to press technologies field.
Background technology
Air cushion is forcing press important component, and pressure-pad-force and liftout power are provided when forcing press works.Existing enclosed
The pull rod that press air cushion adjusts part is connect with apical cap by locking nut, in the air cushion course of work, locking screw
Mother subjects impact and vibrations, it is easy to loosen, is drawn using the locking glue of smearing anaerobism or in locking nut and air cushion in the past
Play junction of the edges of two sheets of paper screw on bar and come locking, junction of the edges of two sheets of paper screw needs pincers worker scene with making, there are it is inconvenient, with being not easy to ensure as quality
Disadvantage, and need to match again after secondary dismounting and play junction of the edges of two sheets of paper screw, assembly and later maintenance are all inconvenient.
Invention content
The present invention is not high for existing press air cushion draw lever locking nut locking structure reliability, secondary dismounting difficulty etc.
Disadvantage provides a kind of press air cushion locking nut anti-loose structure, can be reliable locking, convenient for disassembly and assembly.
For this purpose, a kind of press air cushion locking nut anti-loose structure provided by the invention, including apical cap and setting are in apical cap
Interior air cushion pull rod, the apical cap include outer top panel, external support board, inner top panel and inner support plate, and outer top panel is welded to connect outside
Support plate upper end, inner top panel are welded to connect in inner support plate, and inner support plate is integrally provided on the inside of external support board, and inner top panel is flat
Row is arranged in outer top panel, and mounting hole is provided on the inner top panel, and the shaft end of air cushion pull rod is equipped with external screw thread, the axis of air cushion pull rod
End is upward through the mounting hole and is connected with locking nut, and air cushion pull rod is equipped with limited step, the locking nut, limit
Spheric washer component, end face outside and the air cushion pull rod of locking nut are respectively equipped between step and the upper and lower surface of inner top panel
It is respectively equipped with several pin holes on end face, is correspondingly provided with connecting plate with pin hole, connecting plate is equipped with inside and outside two and encloses pin hole, wherein connecting
Pin hole on plate inner ring is corresponded with the pin hole on air cushion pull rod, and the pin hole number on locking nut is uniformly distributed and meets such as
Lower formula
[1/（n-2）-1/n]*P≤L
In formula, n is the pin hole number on locking nut and is even number, and P is the screw pitch of air cushion pull rod shaft end screw thread, and L is gas
The error amount that pad pull rod axially allows；
Be centrosymmetric distribution and number of pin hole on connecting plate outer ring is n-2, when on connecting plate outer ring being in center pair
When corresponding on locking nut the pin hole face of a pair of of pin hole of title, remaining pin hole pin corresponding on locking nut on connecting plate
Phase difference between hole is respectively 1*720/[n(n-2)]；2*720/[n(n-2)]；3*720/[n(n-2)]；……[(n-4)/
2]*720/[n(n-2)]；
Pin hole on connecting plate inner ring is corresponding inserted with pin one by one with the pin hole on corresponding air cushion pull rod end face, even
Pin there are two being inserted into pin hole on the locking nut of a pair of of pin hole and face on fishplate bar outer ring；
Backing pin plate is equipped on the upside of connecting plate, the backing pin plate is connected to the shaft end of air cushion pull rod through attachment screw.
The device install when, by locking screw, spheric washer component by air cushion draw lever locking on inner top panel, then by pin
Binding both makes fixed in air cushion pull rod pin hole corresponding with connecting plate, then rotate locking nut and make pin hole on locking nut
It overlaps with the pin hole on connecting plate and is equally fixed the two with pin.At this moment locking nut, air cushion pull rod, connecting plate three connection are
One, locking nut cannot individually rotate relative to air cushion pull rod, thus achieved the purpose that locking.On connecting plate outer ring
Pin hole pin hole angle corresponding with locking nut is computed in advance so that locking nut is permitted certain per rotation error range
Angle, the pin hole on connecting plate outer ring can be there are two overlapping, to meet straight side press technology with the pin hole on locking nut
It is required that.Finally backing pin plate and air cushion pull rod are fixed with attachment screw, since backing pin plate covers on pin, such pin is just not
It can scurry out because of vibrations.This nut anti-looseness mode is simple, reliable, and dismounting is all very convenient, and does not influence secondary assembly；
The device is used for press air cushion, ensure that air cushion will not be loosened in the lower locking nut of long term frequent shock, forcing press
It works relatively reliable.
For ease of arrangement, the pin hole of connecting plate inner ring is arranged with two.Positive lock can be realized by two pin holes,
Prevent locking nut from loosening.
It on the backing pin plate and connecting plate further improvement lies in that be symmetrical arranged there are two through-hole, attachment screw passes through gear
Pin plate and connecting plate are connected with the threaded hole that air cushion pull rod shaft end is arranged.
It is the n=18, P=6mm, L=0.05mm as a further improvement on the present invention.Locking nut often rotates 2.5 °
It can be overlapped with the pin hole on connecting plate there are two pin hole, 2.5 ° need to be corresponding with the screw pitch of locking nut, ensures locking nut
2.5 ° are often rotated, screw thread lifting height is within 0.05mm, to meet straight side press technical conditions.
For ease of dismounting, outer top panel position corresponding with the shaft end of air cushion pull rod is equipped with handle hole, the hole of handle hole
Mouth position is equipped with cover board.
It is as a further improvement on the present invention, the spheric washer component includes convex washer and cupped washer, convex washer
Spherical surface between the forward surface of cupped washer to match.
For ease of taking out pin, the pin upper end is equipped with internal thread hole.It, can be with by screwing in screw in threaded hole
Pin is taken out and is replaced.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 in Fig. 1 B's and partial enlarged view.
Fig. 3 is the A-A of Fig. 1 to partial view.
Fig. 4 is connecting board structure schematic diagram.
Fig. 5 is backing pin plate structure schematic diagram.
Fig. 6 is crown configurations schematic diagram.
Fig. 7 is the left view of apical cap in Fig. 6.
In figure, 1 outer top panel, 2 pins, 2a internal thread holes, 3 cover boards, 4 backing pin plates, 5 connecting plates, the pin hole on the outer rings 5a, 5b
Pin hole on inner ring, 4c, 5c through-hole, 6 locking nuts, the pin hole on 6a locking nuts, 7 inner top panels, 8 inner support plates, 9 outer supports
Plate, 10 air cushion pull rods, 10a limited steps, the pin hole on the end faces 10b, 10c threaded holes, 11 spheric washer components, the convex washers of 11a,
11b cupped washers, 12 attachment screws, 13 mounting holes.
Specific implementation mode
As shown in figs. 1-7, it is press air cushion locking nut anti-loose structure, including apical cap and the air cushion that is arranged in apical cap
Pull rod 10, apical cap are made of outer top panel 1, external support board 9, inner top panel 7 and inner support plate 8 etc., and outer top panel 1 is welded to connect to be propped up outside
9 upper end of fagging, inner top panel 7 are welded to connect in inner support plate 8, and inner support plate 8 is integrally provided in 9 inside of external support board, interior top
Plate 7 is parallel to the setting of outer top panel 1, and mounting hole 13 is provided on inner top panel 7, and the shaft end of air cushion pull rod 10 is equipped with external screw thread, air cushion
The shaft end of pull rod 10 is upward through mounting hole 13 and is connected with locking nut 6, and air cushion pull rod 10 is equipped with limited step 10a, lock
Spheric washer component 11, spheric washer component are tightly respectively equipped between nut 6, limited step 10a and the upper and lower surface of inner top panel 7
11 include convex washer 11a and cupped washer 11b, the spherical surface between convex washer 11a and the forward surface of cupped washer 11b to match；Lock
The end face outside of tight nut 6 is equipped with is respectively equipped with several pin holes on the end face of air cushion pull rod 10, as shown in figure 3, being respectively
The pin hole 10b on pin hole 6a, air cushion pull rod 10 on locking nut 6, is correspondingly provided with connecting plate 5, connecting plate 5 is equipped with pin hole
Inside and outside two circles pin hole, wherein the pin hole 5b on 5 inner ring of connecting plate is corresponding with the pin hole on air cushion pull rod 10 and respectively symmetrically sets
There are two, the pin hole number on locking nut 6 is uniformly distributed and meets following formula
[1/（n-2）-1/n]*P≤L
In formula, n is the pin hole number on locking nut 6 and is even number, and P is the screw pitch of 10 shaft end screw thread of air cushion pull rod, and L is
The error amount that air cushion pull rod 10 axially allows；In the present embodiment, P=6mm, L=0.05mm；N values are to exist more than or equal to 18
It needs at least to be uniformly arranged 18 pin holes on locking nut；
Be centrosymmetric distribution and numbers of pin hole 5a on 5 outer ring of connecting plate is n-2；
When the pin hole 6a faces on a pair of of the pin hole being centrosymmetric and any locking nut on 5 outer ring of connecting plate,
The phase difference between respective pin hole on connecting plate 5 on remaining pin hole and locking nut 6 is respectively 1*720/[n(n-2)]；2*
720/[n(n-2)]；3*720/[n(n-2)]；……[(n-4)/2]*720/[n(n-2)]；When n values are 18, phase difference
It Wei not be 2.5 °, 5 °, 7.5 °, 10 °, 12.5 °, 15 °, 17.5 °；
Pin hole 5b on 5 inner ring of connecting plate is inserted into corresponding one by one in the pin hole 10b on corresponding 10 end face of air cushion pull rod
There is pin 2, there are two pins with insertion in the pin hole 6a on the locking nut of face for a pair in the pin hole 5a on 5 outer ring of connecting plate
Nail 2；
5 upside of connecting plate is equipped with backing pin plate 4, and backing pin plate 4 is connected to the shaft end of air cushion pull rod 10 through attachment screw 12.
It is symmetrical arranged on backing pin plate 4 and connecting plate 5 there are two through-hole 4c, 5c, attachment screw 12 passes through backing pin plate 4 and connection
Plate 5 is connected with the threaded hole that 10 shaft end of air cushion pull rod is arranged.
The position corresponding with the shaft end of air cushion pull rod 10 of outer top panel 1 is equipped with handle hole, and the orifice position of handle hole is equipped with lid
Plate 3.For ease of taking out pin 2, internal thread hole 2a is additionally provided in 2 upper end of pin.
Locking nut 6 often rotates 2.5 ° and can be overlapped with the pin hole 5a on 5 outer ring of connecting plate there are two pin hole, this 2.5 ° and
The screw pitch of locking nut 6 is corresponding, ensures that locking nut 6 often rotates 2.5 °, and screw thread lifting height is within 0.05mm, to meet
Straight side press technical conditions.
Uniformly distributed 18 pin holes are then divided into 20 ° between each pin hole on locking nut 6, and 20 ° are a rotation samsara, by 20 ° points
For 8 deciles, 2.5 ° are often divided into, it is in center pair that one group of each two is inserted into 8 pairs altogether by the pin hole on locking nut 6 with insertion
The pin hole of title, and these pin holes are arranged on connecting plate 5, each pair of phase difference with pin hole 6a on locking nut is passed with 2.5 °
Increasing, the pin hole 5a on incremental outer ring can be discontinuous, i.e., adjacent pin hole can be any one in incremental change, as long as
2.5 °, 5 °, 7.5 °, 10 °, 12.5 °, 15 °, 17.5 ° of these angles can be covered on the whole, this ensures that in arbitrary position
Set, locking nut 6, which often rotates, is no more than 2.5 °, in the pin hole 5a on 5 outer ring of connecting plate just there are two on locking nut
Pin hole 6a is overlapped, this ensure that lifting height of the locking nut 6 on screw thread is less than 0.05mm, the maximum of this 0.05mm misses
Difference does not occur with gap form, makes the 10 shaft end elongation variation of air cushion pull rod come real by the variation of pretightning force
Existing, intuitively show that locking nut 6 turns over certain angle relative to air cushion pull rod 10, in the angle of locking nut rotation
In range, pretightning force still conforms to design requirement.Therefore, it can ensure pretightning force in proper range.This locking mode letter
It is single, reliably, secondary dismounting is not influenced, improve air cushion job stability.
It is every on the basis of technical solution disclosed by the invention the invention is not limited in above-described embodiment, this field
Technical staff according to disclosed technology contents, some of which technical characteristic can be made by not needing performing creative labour
Go out some to replace and deform, these are replaced and deform within the protection scope of the present invention.
Claims (7)
1. a kind of press air cushion locking nut anti-loose structure, including apical cap and the air cushion pull rod being arranged in apical cap, feature
Be the apical cap include outer top panel, external support board, inner top panel and inner support plate, outer top panel is welded to connect in external support board upper end,
Inner top panel is welded to connect in inner support plate, and inner support plate is integrally provided on the inside of external support board, and inner top panel is parallel to outer top panel
It is arranged, mounting hole is provided on the inner top panel, the shaft end of air cushion pull rod is equipped with external screw thread, and the shaft end of air cushion pull rod is upward through
The mounting hole is simultaneously connected with locking nut, and air cushion pull rod is equipped with limited step, the locking nut, limited step and interior top
Spheric washer component is respectively equipped between the upper and lower surface of plate, the end face outside of locking nut is distinguished on the end face of air cushion pull rod
Equipped with several pin holes, it is correspondingly provided with connecting plate with pin hole, connecting plate is equipped with inside and outside two and encloses pin hole, wherein on connecting plate inner ring
Pin hole is corresponded with the pin hole on air cushion pull rod, and the pin hole number on locking nut is uniformly distributed and meets following formula
[1/（n-2）-1/n]*P≤L
In formula, n is the pin hole number on locking nut and is even number, and P is the screw pitch of air cushion pull rod shaft end screw thread, and L draws for air cushion
The error amount that bar axially allows；
Be centrosymmetric distribution and number of pin hole on connecting plate outer ring is n-2；
When the pin hole face corresponding on locking nut of a pair of of the pin hole being centrosymmetric on connecting plate outer ring, on connecting plate
The phase difference between respective pin hole on remaining pin hole and locking nut is respectively 1*720/[n(n-2)]；2*720/[n(n-
2)]；3*720/[n(n-2)]；……[(n-4)/2]*720/[n(n-2)]；
Pin hole on connecting plate inner ring is corresponding inserted with pin, connecting plate one by one with the pin hole on corresponding air cushion pull rod end face
Pin there are two being inserted into pin hole on the locking nut of a pair of of pin hole and face on outer ring；
Backing pin plate is equipped on the upside of connecting plate, the backing pin plate is connected to the shaft end of air cushion pull rod through attachment screw.
2. press air cushion locking nut anti-loose structure according to claim 1, it is characterized in that the pin of the inner ring of connecting plate
Hole is arranged with two.
3. press air cushion locking nut anti-loose structure according to claim 1 or 2, it is characterized in that the backing pin plate and company
It is symmetrical arranged on fishplate bar there are two through-hole, attachment screw passes through the threaded hole of backing pin plate and connecting plate and the setting of air cushion pull rod shaft end
It is connected.
4. press air cushion locking nut anti-loose structure according to claim 3, it is characterized in that the n=18, P=6mm, L=
0.05mm。
5. press air cushion locking nut anti-loose structure according to claim 1,2 or 4, it is characterized in that the outer top panel with
The corresponding position in shaft end of air cushion pull rod is equipped with handle hole, and the orifice position of handle hole is equipped with cover board.
6. press air cushion locking nut anti-loose structure according to claim 1,2 or 4, it is characterized in that the spheric washer
Component includes convex washer and cupped washer, the spherical surface between convex washer and the forward surface of cupped washer to match.
7. press air cushion locking nut anti-loose structure according to claim 1,2 or 4, it is characterized in that the pin upper end
Equipped with internal thread hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134281.3A CN106608072B (en) | 2017-03-08 | 2017-03-08 | Press air cushion locking nut anti-loose structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134281.3A CN106608072B (en) | 2017-03-08 | 2017-03-08 | Press air cushion locking nut anti-loose structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106608072A CN106608072A (en) | 2017-05-03 |
| CN106608072B true CN106608072B (en) | 2018-10-26 |
Family
ID=58637038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710134281.3A Active CN106608072B (en) | 2017-03-08 | 2017-03-08 | Press air cushion locking nut anti-loose structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106608072B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435457A (en) * | 2008-12-18 | 2009-05-20 | 宁波海天实力机械有限公司 | Fixing device of pull rod and nut |
| CN201714810U (en) * | 2010-08-16 | 2011-01-19 | 二重集团（德阳）重型装备股份有限公司 | Threaded connection check protection device |
| CN203197077U (en) * | 2013-04-10 | 2013-09-18 | 陈启升 | Upper limiting device for tensile gasket of mechanical press |
| CN204431673U (en) * | 2014-11-06 | 2015-07-01 | 浙江博创机械有限公司 | A kind of novel pull-rod nut locking device |
| CN205167390U (en) * | 2015-11-25 | 2016-04-20 | 宁波格林斯顿机械有限公司 | Fixing device of pull rod and nut |
| CN106382296A (en) * | 2016-11-08 | 2017-02-08 | 徐州建机工程机械有限公司 | Nut looseness-prevention structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2922613B1 (en) * | 2007-10-22 | 2010-02-26 | Skf Aerospace France | ROTATING BLOCKING DEVICE OF A SCREW ASSEMBLY, ASSEMBLY COMPRISING SUCH A DEVICE AND USE OF SUCH A ASSEMBLY IN AERONAUTICAL CONSTRUCTION |
-
2017
- 2017-03-08 CN CN201710134281.3A patent/CN106608072B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435457A (en) * | 2008-12-18 | 2009-05-20 | 宁波海天实力机械有限公司 | Fixing device of pull rod and nut |
| CN201714810U (en) * | 2010-08-16 | 2011-01-19 | 二重集团（德阳）重型装备股份有限公司 | Threaded connection check protection device |
| CN203197077U (en) * | 2013-04-10 | 2013-09-18 | 陈启升 | Upper limiting device for tensile gasket of mechanical press |
| CN204431673U (en) * | 2014-11-06 | 2015-07-01 | 浙江博创机械有限公司 | A kind of novel pull-rod nut locking device |
| CN205167390U (en) * | 2015-11-25 | 2016-04-20 | 宁波格林斯顿机械有限公司 | Fixing device of pull rod and nut |
| CN106382296A (en) * | 2016-11-08 | 2017-02-08 | 徐州建机工程机械有限公司 | Nut looseness-prevention structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106608072A (en) | 2017-05-03 |
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