CN102430687B - Double-end pressure riveting method, riveting pin and pressure riveting device - Google Patents
Double-end pressure riveting method, riveting pin and pressure riveting device Download PDFInfo
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- CN102430687B CN102430687B CN201110342697.7A CN201110342697A CN102430687B CN 102430687 B CN102430687 B CN 102430687B CN 201110342697 A CN201110342697 A CN 201110342697A CN 102430687 B CN102430687 B CN 102430687B
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Abstract
Disclosed are a double-end pressure riveting method, a riveting pin and a pressure riveting device. The pressure riveting method includes that a part to be riveted is fixed by a clamping fixture, an upper riveting head and a lower riveting head are fixed onto a pressure riveting die, the riveting pin is placed, and then the riveting heads linearly move to squeeze two ends of the riveting pin and perform pressure riveting for the double ends simultaneously. The riveting pin is a three-journal type riveting pin, the size of a middle journal of the riveting pin is larger than that of each of journals at the two ends of the riveting pin, the journals at the two ends are in partially hollow structures, and the journals at the two ends of the riveting pin after pressure riveting are partially upset. The double-end pressure riveting method can be used for realizing double-end pressure riveting for a plurality of riveting pins simultaneously, the riveting process is stable and reliable, riveting efficiency and quality are improved obviously, and riveting cost is reduced.
Description
Technical field
The invention belongs to the riveting technology of metal parts, be specifically related to a kind of both-end riveting method and riveting pin and pressure riveting device of realizing both-end pressure-riveting process.
Background technology
Riveted joint refers to and utilizes axial force, by thick riveting pin (nail) head pier, and the method that multiple parts are connected to a fixed; Riveted joint principle, can be divided into and revolve riveting and press again.Traditional riveting process method mostly is the single-ended riveting of revolving at present, but owing to being subject to the restriction of technique itself, causes it to have following problems.First, be subject to the restriction of structure and the operation principle of riveter, cause it in the time of riveted joint, can only take single-ended riveted joint, in the time that parts need multiple riveting pins (nail) and each riveting pin (nail) two ends to require to rivet, need a point Simulation Based On Multi-step riveted joint, efficiency is too low.Secondly,, in the time that part caulking part bit space is very compact, because die rotation easily scratches part around, riveted joint process is unstable, is riveted parts outward appearance to have defect; And in the time that die weares and teares, in riveted joint process, can produce burr, have the potential safety hazard of scratching fingers.Moreover, when riveting pin (nail) is solid and when two ends diameter is larger, it will be very large revolving the required power of riveting, easily cause riveting pin (nail) stage casing axle journal jumping-up, rivetted by the part with riveting pin (nail) stage casing axle journal matched in clearance in riveted joint parts, cause parts properties of product to decline or disabler.
Summary of the invention
For solving the existing various defects of existing clinching method, the invention provides a kind of both-end riveting method and riveting pin and pressure riveting device of realizing both-end riveting, it can be realized simultaneously multiple riveting pins are carried out to both-end riveted joint, it rivets process stabilization, reliably, riveted joint efficiency, quality obviously improve, riveted joint cost.
The technical solution adopted in the present invention is as follows:
A kind of both-end riveting method, is characterized in that described riveting method comprises:
Adopt mold fixing by riveted joint parts, and fixing upper and lower die is on riveting die, places a riveting pin and then carry out both-end and press simultaneously in die rectilinear motion extruding riveting pin two ends; Described riveting pin is three sections of journalled riveting pins, and the size of its stage casing axle journal is greater than the size of two ends axle journal, and this two ends axle journal is local hollow-core construction; The two ends axle journal gathering stock of the riveting pin after pressing.
In one embodiment, described riveting method further comprises:
The described die up and down pressing is tack solid construction, in the time that riveted joint starts, the action of upper die and lower die is quick-make stroke, upper and lower die is reinforcement stroke while contacting riveting pin simultaneously, then after the pressure of upper and lower die increases to and set value and keep the time to complete pressing, die auto-returned up and down.
In one embodiment, the described fixing mold by riveted joint parts is the mold that floats, and the pressure of upper and lower die equates by the mold maintenance of floating.
In another embodiment, described riveting method adopts a pressure riveting device, this pressure riveting device comprises riveting die and lower riveting die, upper and lower die is separately fixed on riveting die and lower riveting die, is provided with the guide pillar that presses and rises the guiding of die in the process of pressing between described upper riveting die and lower riveting die; This pressure riveting device also comprises a unsteady mold, the fixing parts that pressed on the mold that floats, and described upper riveting die and lower riveting die are separately fixed on gas-liquid force increasing formula forcing press.
The riveting pin that the present invention also provides a kind of both-end riveting method to use, is characterized in that described riveting pin is one or three sections of journalled riveting pins, and the size of its stage casing axle journal is greater than the size of two ends axle journal, and this two ends axle journal is local hollow-core construction; The two ends axle journal gathering stock of the riveting pin after pressing.
In one embodiment, on the axle journal of described two ends, be provided with recess along this riveting pin axial direction, the outer wall gathering stock of this recess after pressing.
The present invention further provides the pressure riveting device that a kind of both-end riveting method uses, it is characterized in that described pressure riveting device comprises riveting die and lower riveting die, upper and lower die is separately fixed on riveting die and lower riveting die, is provided with the guide pillar that presses and rises the guiding of die in the process of pressing between described upper riveting die and lower riveting die.
Concretely, this pressure riveting device also comprises a unsteady mold, the fixing parts that pressed on the mold that floats,
Described upper riveting die and lower riveting die are separately fixed on gas-liquid force increasing formula forcing press.
This both-end riveting method can be realized the difference power that presses, the difference position that presses, and the riveting process that different modular constructions are all used, has improved riveted joint efficiency and riveting quality, has reduced production cost simultaneously.This riveting method can, by gas-liquid force increasing formula press, be utilized the special tooling that presses, and by a Punching Process, by the two ends jumping-up of three sections of journalled riveting pins, thereby the parts of being riveted is connected and fixed; Because the power of pressing can be put to set according to the material yield of riveting pin two ends axle journal, the stage casing axle journal of riveting pin can, because deformation occurs in the effect of the power of pressing, therefore still can not keep desired matching relationship with riveting pin with the parts of riveting pin stage casing axle journal matched in clearance in parts in punching course.
The riveting pin material that this both-end riveting method uses can be according to being required to adopt 20# steel, 35# steel or 45# steel by the riveting intensity of riveted joint parts.The size of riveting pin can be according to being required concrete definite by the physical dimension of riveted joint parts and riveting intensity.This pressure riveting device can adopt fixing unsteady mold of being riveted parts, and upper and lower die is fixed by riveting die, and the upper and lower die pressing adopts tack solid construction, and its size must be determined according to the size of riveting pin, material and the structure by riveted joint parts.In practical application, the material of die can be selected high strength cold-working mold materials, as ASSAB88, S790 etc.The quantity of die specifically can be by being determined by the required riveting pin quantity of riveted joint parts product.In the time that both-end presses, the pressure initiation of capable of regulating pressure riveting device is controlled riveted joint process, in the time that riveted joint starts, is quick-make stroke; In the time that upper and lower die contacts riveting pin simultaneously, become reinforcement stroke, in the time that pressure increases to setting value, fast return automatically after pressurize a period of time.In riveted joint process, floated by the mold of riveting parts due to fixing, upper and lower die pressure is equal, and therefore, riveting pin two ends stress deformation degree is also the same, thereby has ensured riveted joint process stabilization, quality controllable system.In addition, because die is rectilinear motion in the process of pressing, it can avoid revolving the defect of riveting die scuffing part.This both-end riveting method also can be realized many riveting pins, simultaneously pressure-riveting process of both-end, and rhythm of production is with to revolve riveter skill identical, and the content specific rotation riveting of once riveting is much more, has simplified technological process, has reduced material space and expense, production efficiency significantly improves.
Beneficial effect of the present invention is, this both-end riveting method and riveting pin thereof and pressure riveting device can be realized both-end riveting, and it can be realized simultaneously multiple riveting pins are carried out to both-end riveted joint, it rivets process stabilization, reliably, riveted joint efficiency, quality obviously improve, riveted joint cost.
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
brief description of the drawings
Fig. 1 is the cross-sectional view of riveting pin in the specific embodiment of the invention;
Fig. 2 be in Fig. 1 riveting pin by the cross-sectional view after pressing;
Fig. 3 is the cross-sectional view of pressure riveting device in the specific embodiment of the invention;
Fig. 4 is the step structural representation of both-end riveting method in the specific embodiment of the invention.
detailed description of the invention
As depicted in figs. 1 and 2, the riveting pin that this both-end riveting method uses is three sections of journalled riveting pins 3, and the size of its stage casing axle journal 11 is greater than the size of two ends axle journal 12 and 13, and this two ends axle journal is local hollow-core construction; Two ends axle journal 12,13 gathering stocks of the riveting pin 3 after pressing.Owing to being provided with recess 15 and 14 along these riveting pin 3 axial directions on two ends axle journal 12,13, the outer wall gathering stock of this recess 14,15 after pressing.
As shown in Figure 3, the pressure riveting device that this both-end riveting method uses comprises riveting die and lower riveting die, upper die 1, lower die 2 are separately fixed on riveting die and lower riveting die, and the guiding that is provided with die in 5 processes that press of guide pillar that press between upper riveting die and lower riveting die is carried out punching press to riveting pin 3.This pressure riveting device also has a unsteady mold 6, the fixing parts 24,25 that pressed on the mold that floats, and upper riveting die and lower riveting die are separately fixed on gas-liquid force increasing formula forcing press.
This both-end riveting method adopts mold fixing by riveted joint parts, and fixing upper and lower die is on riveting die, places a riveting pin 3, and then die rectilinear motion extruding riveting pin 3 two ends are carried out both-end and pressed simultaneously; Described riveting pin 3 is three sections of journalled riveting pins, and the size of its stage casing axle journal 11 is greater than the size of two ends axle journal 12,13, and this two ends axle journal is local hollow-core construction; The two ends axle journal gathering stock of the riveting pin 3 after pressing.The die up and down pressing is tack solid construction.Three step states of riveting method as shown in Figure 4, in the time that riveted joint starts, the action of upper die 1 and lower die 2 is quick-make stroke, upper and lower die is reinforcement stroke while contacting riveting pin 3 simultaneously; Secondly, the pressure of upper and lower die increases to set value and keep the time to complete and presses, last, upper and lower die auto-returned.The press mold of parts 24,25 of fixing quilt is the mold that floats, and the pressure of upper and lower die keeps equating by the mold that floats.This riveting method adopts a pressure riveting device, this pressure riveting device comprises riveting die and lower riveting die, upper and lower die is separately fixed on riveting die and lower riveting die, is provided with the guiding of die in 5 processes that press of guide pillar that press between upper riveting die and lower riveting die; This pressure riveting device also comprises a unsteady mold, the fixing parts that pressed on the mold that floats, and described upper riveting die and lower riveting die are separately fixed on gas-liquid force increasing formula forcing press.
Claims (3)
1. a both-end riveting method, is characterized in that described riveting method comprises:
Adopt mold fixing by riveted joint parts, and fixing upper and lower die is on riveting die, the described die up and down pressing is tack solid construction, in the time that riveted joint starts, the action of upper die and lower die is quick-make stroke, upper and lower die is reinforcement stroke while contacting riveting pin simultaneously, after then the pressure of upper and lower die increases to and set value and keep the time to complete pressing, and die auto-returned up and down; Described riveting pin is three sections of journalled riveting pins, and wherein the size of end-journal is greater than the size of two ends axle journal, and this two ends axle journal is local hollow-core construction; The two ends axle journal gathering stock of the riveting pin after pressing.
2. both-end riveting method according to claim 1, is characterized in that the described fixing mold by riveted joint parts is the mold that floats, and the pressure of upper and lower die equates by the mold maintenance of floating.
3. both-end riveting method according to claim 1, it is characterized in that described riveting method adopts a pressure riveting device, this pressure riveting device comprises riveting die and lower riveting die, upper and lower die is separately fixed on riveting die and lower riveting die, is provided with the guide pillar that presses and rises the guiding of die in the process of pressing between described upper riveting die and lower riveting die; This pressure riveting device also comprises a unsteady mold, the fixing parts that pressed on the mold that floats, and described upper riveting die and lower riveting die are separately fixed on gas-liquid force increasing formula forcing press.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110342697.7A CN102430687B (en) | 2011-11-03 | 2011-11-03 | Double-end pressure riveting method, riveting pin and pressure riveting device |
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| CN201110342697.7A CN102430687B (en) | 2011-11-03 | 2011-11-03 | Double-end pressure riveting method, riveting pin and pressure riveting device |
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| CN102430687A CN102430687A (en) | 2012-05-02 |
| CN102430687B true CN102430687B (en) | 2014-11-05 |
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| CN106246678B (en) * | 2016-09-30 | 2019-06-07 | 中航光电科技股份有限公司 | Pin component and its pin used in vibration environment |
| CN109807599B (en) * | 2018-12-24 | 2020-07-28 | 河南平高电气股份有限公司 | Crank arm riveting positioning tool |
| CN109433996B (en) * | 2018-12-27 | 2021-02-02 | 南京航空航天大学 | Double-sided rotating friction extrusion riveting device and riveting method thereof |
| CN109465377B (en) * | 2018-12-28 | 2020-03-24 | 瑞安市荣海机电有限公司 | Chain pin riveting device for improving stability of chain |
| CN111570711B (en) * | 2020-05-15 | 2021-10-29 | 浙江伊人电器有限公司 | TOX riveting equipment for volute air outlet of fan |
| CN115121758B (en) * | 2022-06-24 | 2024-02-02 | 佛吉亚(盐城)汽车部件系统有限公司 | Riveting device with triangular force increasing mechanism and riveting system comprising same |
| CN117798663B (en) * | 2024-03-01 | 2024-05-07 | 哈尔滨工业大学 | Riveting method for nanocrystalline strip block iron core in electromagnetic relay |
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| US6354871B1 (en) * | 1998-03-16 | 2002-03-12 | Nec Corporation | Connector-mounted substrate and method for assembling the same |
| CN1411399A (en) * | 1999-10-26 | 2003-04-16 | 丰田自动车株式会社 | Rivet, riveted joint structure, riveting apparatus and riveting method |
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| GB1396315A (en) * | 1971-09-10 | 1975-06-04 | Tucker Fasteners Ltd | Fasteners |
| JP3521010B2 (en) * | 1994-08-19 | 2004-04-19 | 株式会社安川電機 | Magnetostrictive strain sensor |
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| DE4134414A1 (en) * | 1991-10-17 | 1993-04-22 | Knuerr Mechanik Ag | Rivet connector for sheet metal - consists of bottom die holder with two opposite bottom die/anvil groups, located between two upper die tools |
| US6354871B1 (en) * | 1998-03-16 | 2002-03-12 | Nec Corporation | Connector-mounted substrate and method for assembling the same |
| CN1411399A (en) * | 1999-10-26 | 2003-04-16 | 丰田自动车株式会社 | Rivet, riveted joint structure, riveting apparatus and riveting method |
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| CN102430687A (en) | 2012-05-02 |
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