CN103317078B - Rivet pulling mechanism and rivet pulling method - Google Patents
Rivet pulling mechanism and rivet pulling method Download PDFInfo
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- CN103317078B CN103317078B CN201310290512.1A CN201310290512A CN103317078B CN 103317078 B CN103317078 B CN 103317078B CN 201310290512 A CN201310290512 A CN 201310290512A CN 103317078 B CN103317078 B CN 103317078B
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- thrust bearing
- staking
- pull bar
- blind nut
- pressed seat
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Abstract
The invention discloses a rivet pulling mechanism and a rivet pulling method that the rivet pulling mechanism is adopted to carry out rivet pulling deformation on a blind nut. The rivet pulling mechanism comprises a compressing base, a thrust base and a pulling rod. The compressing base is used for abutting against the blind nut, the compressing base and the thrust base can be rotatably sleeved on the pulling rod around the pulling rod, the thrust base is in threaded connection with the compressing base, a first external thread matched with a first internal thread of the blind nut is arranged at one end, close to the compressing base, of the pulling rod, an axial limiting structure for axially limiting the thrust base is arranged at the other end, close to the thrust base, of the pulling rod, and the thrust base and the axial limiting structure can rotate relatively. The rivet pulling mechanism is simple in structure and low in cost, the rivet pulling method is easy and convenient to practice, needed operation space is very small when the rivet pulling deformation is carried out on the blind nut, and the working demand for small space rivet pulling is well met.
Description
Technical field
The invention belongs to hardware & tools and use field thereof, particularly relate to a kind of novel staking mechanism and a kind of staking method.
Background technology
Blind nut is also known as riveting nut or draw cap, for the fastening field of the process industries such as all kinds of sheet metal or tubing, is the shortcoming such as solve sheet metal and light wall pipe welded nut is meltable and tapping thread is easy to slip teeth and developing.Tapping thread is not needed in staking connection procedure, do not need welded nut, there is the advantage that the firm efficiency of riveted joint is high simultaneously, be currently widely used in the fit on of the electromechanics such as automobile, aviation, railway, refrigeration, elevator, switch, instrument, furniture and decoration and light industrial goods.
When the locational space needing to carry out being fastenedly connected is narrow and small or the machine use that presses is restricted, thus cannot press, and when using the method such as to sprout also cannot reach riveting intensity requirement, press and riveting of rising all infeasible, now must use staking, be namely fastenedly connected by blind nut.When adopting blind nut to be fastenedly connected, use Pneumatic hand riveter or Manual rivet pulling gun can once by blind nut rivet clasps, not only easy to operate but also connect fastening, thus traditional welded nut can be replaced, make up sheet metal and light wall pipe welds easy scorification and the deficiencies such as inconvenient welded nut.
When adopting hand riveter to carry out staking distortion to blind nut, although simple to operate and connect fastening, some specific position that the operating space allowed is narrower and small carry out staking connect time, the use of hand riveter still may be restricted.Such as, when keeping in repair or change the blind nut on the equipment assembled, the operating space that equipment allows generally all can be very narrow and small, now, then needs equipment to dismantle so that maintenance, not only spend higher but also lose time.
Therefore, how adapting to carry out the work requirements of staking distortion in less operating space to blind nut, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of staking mechanism and a kind of adopt this staking mechanism to blind nut carry out staking distortion time staking method, this staking mechanism has less volume, structure is simple, and processing technology is easy, cost of use is lower, and this staking method is simple, and required operating space is less.
For achieving the above object, the invention provides following technical scheme:
A kind of staking mechanism, for carrying out staking distortion to blind nut, comprising:
For withstanding the pressed seat of described blind nut;
Thrust bearing;
Pull bar, described pressed seat and described thrust bearing all can be sheathed on described pull bar around described pull bar rotationally, and, be threaded between described thrust bearing with described pressed seat, in addition, one end near described pressed seat on described pull bar is provided with the first external screw thread with the first internal thread adaptation of described blind nut, simultaneously, described pull bar is provided with the axial limit structure for carrying out axial limiting to described thrust bearing near the other end of described thrust bearing, can relatively rotates between described thrust bearing and described axial limit structure.
Preferably, in above-mentioned staking mechanism, described pressed seat is provided with the first regular hexagon outer wall for the one end of withstanding described blind nut.
Preferably, in above-mentioned staking mechanism, described thrust bearing is provided with the second regular hexagon outer wall.
Preferably, in above-mentioned staking mechanism, described axial limit structure is be welded in the nut on described pull bar.
Preferably, in above-mentioned staking mechanism, between described thrust bearing and described axial limit structure, thrust bearing is provided with.
Preferably, in above-mentioned staking mechanism, described thrust bearing is provided with the second internal thread, described pressed seat is provided with the second external screw thread with described second internal thread adaptation.
Preferably, in above-mentioned staking mechanism, described second externally threaded length is greater than the length of described second internal thread.
Preferably, in above-mentioned staking mechanism, also comprise the draw-bar seat be sheathed on described pull bar, described draw-bar seat is provided with stepped hole, the through hole that in described stepped hole, diameter is less and described pull bar adaptation, in described stepped hole, the diameter of the through hole that diameter is larger is greater than described second externally threaded diameter, and described thrust bearing and described axial limit structure lay respectively at the both sides of described draw-bar seat.
A kind of staking method, adopts above described staking mechanism, comprises the following steps:
Step one: blind nut is screwed on the first external screw thread of pull bar;
Step 2: the described blind nut of having twisted is put into riveted holes;
Step 3: make pressed seat withstand described blind nut, keeps described pressed seat invariant position simultaneously;
Step 4: twist thrust bearing, makes described thrust bearing compress axial limit structure thus drive described pull bar to move vertically, until described blind nut completes staking distortion;
Step 5: oppositely twist thrust bearing;
Step 6: reverse pull bar, make described pull bar exit described blind nut.
Preferably, in above-mentioned staking method, in step 3, when making pressed seat withstand described blind nut, pressed seat is secured the above with the first spanner; Further, in step 4, thrust bearing is twisted with the second spanner.
As can be seen from above-mentioned technical scheme, the staking mechanism that the embodiment of the present invention provides, structure is simple, reliably fastening, with low cost, meanwhile, staking method provided by the invention is easy to operation, the operating space required when carrying out staking distortion to blind nut is very little, thus has adapted to the work requirements of little space staking well.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the staking mechanism that Fig. 1 provides for the embodiment of the present invention;
The structural representation of pressed seat in the staking mechanism that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the left view of Fig. 2;
The structural representation of thrust bearing in the staking mechanism that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the left view of Fig. 4;
The structural representation of draw-bar seat in the staking mechanism that Fig. 6 provides for the embodiment of the present invention;
Fig. 7 is the left view of Fig. 6;
The structural representation of pull bar in the staking mechanism that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is the left view of Fig. 8.
Wherein, 1 is nut, and 2 is draw-bar seat, and 3 is thrust bearing, and 4 is thrust bearing, and 5 is pressed seat, and 6 is pull bar, and 7 is blind nut, and 41 is the second internal thread, and 42 is the second regular hexagon outer wall, and 51 is the second external screw thread, and 52 is the first regular hexagon outer wall.
Detailed description of the invention
The invention discloses a kind of staking mechanism and a kind of adopt this staking mechanism to blind nut carry out staking distortion time staking method, this staking mechanism has less volume, structure is simple, and processing technology is easy, cost of use is lower, this staking method is simple, and required operating space is less.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 9, the structural representation of the staking mechanism that Fig. 1 provides for the embodiment of the present invention, the structural representation of pressed seat in the staking mechanism that Fig. 2 provides for the embodiment of the present invention, Fig. 3 is the left view of Fig. 2, the structural representation of thrust bearing in the staking mechanism that Fig. 4 provides for the embodiment of the present invention, Fig. 5 is the left view of Fig. 4, the structural representation of draw-bar seat in the staking mechanism that Fig. 6 provides for the embodiment of the present invention, Fig. 7 is the left view of Fig. 6, the structural representation of pull bar in the staking mechanism that Fig. 8 provides for the embodiment of the present invention, Fig. 9 is the left view of Fig. 8.
The staking mechanism that the embodiment of the present invention provides, for carrying out staking distortion to blind nut 7, this staking mechanism comprises pull bar 6, pressed seat 5 and thrust bearing 4.Wherein, pressed seat 5 and thrust bearing 4 to be all sheathed on pull bar 6 and can to rotate around pull bar 6, and, be threaded between thrust bearing 4 with pressed seat 5; In addition, the one end near pressed seat 5 on pull bar 6 is provided with the first external screw thread with the internal thread adaptation of blind nut 7, meanwhile, pull bar 6 is provided with the axial limit structure for carrying out axial limiting to thrust bearing 4 near the other end of thrust bearing 4.At this be with should be noted that, can relatively rotate between thrust bearing 4 and this axial limit structure, thus realize relatively turnable object between thrust bearing 4 and pull bar 6, thus, thrust bearing 4 boost pull bar 6 with blind nut 7 is carried out staking distortion time, all do not relatively rotate between pull bar 6 and pressed seat 5 and between pull bar 6 and blind nut 7.
Adopt above described staking mechanism, present invention also offers a kind of staking method, comprise the following steps:
Step one: blind nut 7 is screwed on the first external screw thread of pull bar 6;
Step 2: the blind nut 7 of having twisted is put into riveted holes;
Step 3: the order pressed seat 5 be set on pull bar 6 withstands blind nut 7, keeps pressed seat 5 invariant position simultaneously;
Step 4: twist and be sheathed on equally on pull bar 6 and the thrust bearing 4 be threaded with pressed seat 5, thrust bearing 4 is made to be pressed abd fixed on axial limit structure on pull bar 6, continue to twist thrust bearing 4 thus drive pull bar 6 to move vertically, until blind nut 7 completes staking distortion;
Step 5: oppositely twist thrust bearing 4, thus make the axial limit structure of thrust bearing 4 no longer on compressing pull rod 6;
Step 6: reverse pull bar 6, make pull bar 6 exit blind nut 7.
In technique scheme, when thrust bearing 4 relatively rotates with pressed seat 5, thrust bearing 4 moves to the direction away from blind nut 7, when pressed seat 5 compresses blind nut 7, when thrust bearing 4 and axial limit structure clamping on pull bar 6, continue to twist thrust bearing 4 and pull bar 6 can be driven to axially move.In aforesaid operations process, thrust bearing 4 thrust up changes the thrust to blind nut 7 edge into by pressed seat 5, makes not produce relative motion between blind nut 7 and riveted joint face, ensure that the solid and reliable of riveted joint.Further, when rotation thrust bearing 4 moves upward, turning moment can be made to be converted to blind nut 7 staking power upwards, the size of this turning moment determines the size of staking power.This shows, the staking method that the embodiment of the present invention provides is easy to operation, and the staking mechanism adopted not only structure is simple, reliably fastening, the operating space is simultaneously very little, and its spatial altitude only needs the length of pull bar 6.Thus visible, the present invention has adapted to the work requirements of little space staking well.
In a particular embodiment, on the pressed seat 5 of staking mechanism, the one end for withstanding blind nut 7 is provided with the first regular hexagon outer wall 52(and refers to Fig. 2 and Fig. 3), and, thrust bearing 4 is provided with the second regular hexagon outer wall 42(and refers to Fig. 4 and Fig. 5).Thus, in staking process, adopt common wrench can carry out position to pressed seat 5 and fix, adopt another common wrench can twist operation to thrust bearing 4 simultaneously.Accordingly, in the step 3 of above-mentioned staking method, when making pressed seat 5 withstand blind nut 7, fix pressed seat 5 with the first spanner; In step 4, twist thrust bearing 4 with the second spanner.But the present invention is not limited thereto, to the specific design for twisting thrust bearing 4 and the seat 5 that is fixed and clamped, those skilled in the art can also be designed to other form, the such as direct handle arranged respectively on thrust bearing 4 and pressed seat 5 for operating personnel's holding, to replace wrench operated, be also feasible.But the detailed description of the invention by contrast, above by wrench operated is convenient to manufacture and use more.
In a particular embodiment, on pull bar 6, welded nut 1(refers to Fig. 1, and Fig. 8 and Fig. 9), as axial limit structure thrust bearing 4 being carried out to axial limiting, thus after completing and carrying out the operation of staking distortion to blind nut 7, pull bar 6 can be screwed out blind nut 7 by torque nut 1.
Further, as shown in Figure 1, in the staking mechanism that preferred embodiment provides, thrust bearing 4 is provided with the second internal thread 41(and refers to Fig. 1, and Fig. 4 and Fig. 5), pressed seat 5 is provided with and refers to Fig. 1 with the second external screw thread 51(of the second internal thread 41 adaptation, and Fig. 2 and Fig. 3).Further, further, the length of the second external screw thread 51 is made to be greater than the length of the second internal thread 41.In addition, as shown in Figure 1, draw-bar seat 2 and thrust bearing 3 is also provided with between thrust bearing 4 and nut 1, thrust bearing 3 and axial limit structure (nut 1) lay respectively at the both sides of draw-bar seat 2, wherein, thrust bearing 3 and part joined together (pull bar 6, draw-bar seat 2 and thrust bearing 4) are all same rotations.Particularly, as shown in Figure 6 and Figure 7, draw-bar seat 2 is provided with stepped hole, the through hole that in stepped hole, diameter is less and pull bar 6 adaptation (pull bar 6 is played to the effect of guiding), in stepped hole, the diameter of the through hole that diameter is larger is greater than the diameter (thus can be sheathed on pressed seat 5 and offset with the thrust bearing 3 on thrust bearing 4) of the second external screw thread 51.
But above-described embodiment is only a preferred embodiment provided by the invention, and specific embodiments of the invention are not limited thereto, in other concrete embodiment, can also be that external screw thread is set on thrust bearing 4, internal thread is set on pressed seat 5 simultaneously; Also the axial limit structure on pull bar 6 can be arranged to the flanged structure manufactured with pull bar 6 integral type, etc.Therefore, the present invention to be not specifically limited this.
As can be seen from technique scheme, in staking mechanism provided by the invention and staking method, staking power can Artificial Control and adjustment, also presets by instrument (as torque spanner), rivets tightly reliable, not easily occur phenomenon of not riveting tightly.In addition, staking mechanism provided by the invention and staking method, when keeping in repair or change the blind nut on the equipment assembled, even if the operating space that equipment allows is very narrow and small, also can carry out staking tightening operation easily.Certainly, staking mechanism provided by the invention and staking method are also applicable in the larger environment in operating space, and not only structure is simple, with low cost for it, and easy to operation, and operating personnel do not need special training, need hardly to safeguard.As long as because this common spanner of staking mechanism just can operate use, be therefore applicable to the field work in non-transformer, non-compressed air source.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a staking mechanism, for carrying out staking distortion to blind nut (7), is characterized in that, comprise:
For withstanding the pressed seat (5) of described blind nut (7);
Thrust bearing (4);
Pull bar (6), described pressed seat (5) and described thrust bearing (4) all can be sheathed on described pull bar (6) around described pull bar (6) rotationally, and, be threaded between described thrust bearing (4) with described pressed seat (5), in addition, the upper one end near described pressed seat (5) of described pull bar (6) is provided with the first external screw thread with the first internal thread adaptation of described blind nut (7), simultaneously, the upper other end near described thrust bearing (4) of described pull bar (6) is provided with the axial limit structure for carrying out axial limiting to described thrust bearing (4), can relatively rotate between described thrust bearing (4) and described axial limit structure.
2. staking mechanism according to claim 1, is characterized in that, described pressed seat (5) is provided with the first regular hexagon outer wall (52) for the one end of withstanding described blind nut (7).
3. staking mechanism according to claim 1, is characterized in that, described thrust bearing (4) is provided with the second regular hexagon outer wall (42).
4. staking mechanism according to claim 1, is characterized in that, described axial limit structure is for being welded in the nut (1) on described pull bar (6).
5. staking mechanism according to claim 1, is characterized in that, is provided with thrust bearing (3) between described thrust bearing (4) and described axial limit structure.
6. staking mechanism according to claim 5, is characterized in that, described thrust bearing (4) is provided with the second internal thread (41), described pressed seat (5) is provided with second external screw thread (51) adaptive with described second internal thread (41).
7. staking mechanism according to claim 6, is characterized in that, the length of described second external screw thread (51) is greater than the length of described second internal thread (41).
8. staking mechanism according to claim 7, it is characterized in that, also comprise the draw-bar seat (2) be sheathed on described pull bar (6), described thrust bearing (3) and described axial limit structure lay respectively at the both sides of described draw-bar seat (2), (2) are provided with stepped hole to described draw-bar seat, the through hole that in described stepped hole, diameter is less and described pull bar (6) adaptation, in described stepped hole, the diameter of the through hole that diameter is larger is greater than the diameter of described second external screw thread (51).
9. a staking method, is characterized in that, adopts the staking mechanism described in 1 in the claims, comprises the following steps:
Step one: blind nut (7) is screwed on the first external screw thread of pull bar (6);
Step 2: the described blind nut (7) of having twisted is put into riveted holes;
Step 3: make pressed seat (5) withstand described blind nut (7), keep described pressed seat (5) invariant position simultaneously;
Step 4: twist thrust bearing (4), makes described thrust bearing (4) compress axial limit structure thus drive described pull bar (6) to move vertically, until described blind nut (7) completes staking distortion;
Step 5: oppositely twist thrust bearing (4);
Step 6: reverse pull bar (6), make described pull bar (6) exit described blind nut (7).
10. staking method according to claim 9, is characterized in that, in step 3, when making pressed seat (5) withstand described blind nut (7), secures the above pressed seat (5) with the first spanner; Further, in step 4, thrust bearing (4) is twisted with the second spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290512.1A CN103317078B (en) | 2013-07-11 | 2013-07-11 | Rivet pulling mechanism and rivet pulling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290512.1A CN103317078B (en) | 2013-07-11 | 2013-07-11 | Rivet pulling mechanism and rivet pulling method |
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| Publication Number | Publication Date |
|---|---|
| CN103317078A CN103317078A (en) | 2013-09-25 |
| CN103317078B true CN103317078B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310290512.1A Active CN103317078B (en) | 2013-07-11 | 2013-07-11 | Rivet pulling mechanism and rivet pulling method |
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| CN (1) | CN103317078B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3658310B1 (en) * | 2017-07-27 | 2022-01-19 | Cucchi Giovanni & C. S.r.l. | Hand tool for fixing mechanical inserts |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752754B (en) * | 2014-02-24 | 2015-08-12 | 上海英汇科技发展有限公司 | A kind of staking fastening method and instrument |
| CN107952893B (en) * | 2018-01-03 | 2024-03-19 | 苏州托克斯冲压设备有限公司 | Tensioning riveting mechanism |
| CN112453225A (en) * | 2020-10-30 | 2021-03-09 | 上海马勒热***有限公司 | Riveting mechanism for lap joint bent pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229960A (en) * | 1977-12-09 | 1980-10-28 | Lindova Aktiebolag | Tool for installing so-called press nuts |
| CN1617777A (en) * | 2001-12-14 | 2005-05-18 | 泰克斯特兰紧固***有限公司 | Method of fastening |
| DE102007062412A1 (en) * | 2007-12-20 | 2009-06-25 | Fairchild Fasteners Europe - Camloc Gmbh | Fastening arrangement for aircraft, has coupling unit assigned to drawing spindle and pressure pad such that pad is movable in track section slowly than spindle and with same speed as spindle in other track section during axial movement |
| CN201358993Y (en) * | 2009-03-12 | 2009-12-09 | 湖北博士隆科技有限公司 | Gap adjuster |
| CN201979456U (en) * | 2010-12-28 | 2011-09-21 | 唐山轨道客车有限责任公司 | Blind rivet nut detecting and/or removing instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2613746B2 (en) * | 1994-09-02 | 1997-05-28 | ▲吉▼川鐵工株式会社 | Straightener |
-
2013
- 2013-07-11 CN CN201310290512.1A patent/CN103317078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229960A (en) * | 1977-12-09 | 1980-10-28 | Lindova Aktiebolag | Tool for installing so-called press nuts |
| CN1617777A (en) * | 2001-12-14 | 2005-05-18 | 泰克斯特兰紧固***有限公司 | Method of fastening |
| DE102007062412A1 (en) * | 2007-12-20 | 2009-06-25 | Fairchild Fasteners Europe - Camloc Gmbh | Fastening arrangement for aircraft, has coupling unit assigned to drawing spindle and pressure pad such that pad is movable in track section slowly than spindle and with same speed as spindle in other track section during axial movement |
| CN201358993Y (en) * | 2009-03-12 | 2009-12-09 | 湖北博士隆科技有限公司 | Gap adjuster |
| CN201979456U (en) * | 2010-12-28 | 2011-09-21 | 唐山轨道客车有限责任公司 | Blind rivet nut detecting and/or removing instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3658310B1 (en) * | 2017-07-27 | 2022-01-19 | Cucchi Giovanni & C. S.r.l. | Hand tool for fixing mechanical inserts |
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| CN103317078A (en) | 2013-09-25 |
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