CN101943199B - Rivet-core pulling-rod circular rivet and special rivet making machine thereof - Google Patents
Rivet-core pulling-rod circular rivet and special rivet making machine thereof Download PDFInfo
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- CN101943199B CN101943199B CN2010102755629A CN201010275562A CN101943199B CN 101943199 B CN101943199 B CN 101943199B CN 2010102755629 A CN2010102755629 A CN 2010102755629A CN 201010275562 A CN201010275562 A CN 201010275562A CN 101943199 B CN101943199 B CN 101943199B
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Abstract
The invention discloses a rivet-core pulling-rod circular rivet, which comprises a rivet body and a rivet core rod. A cavity is formed in the middle part of the rivet body. The rivet core rod comprises a rivet core and a pulling rod, wherein the rivet core is positioned on the upper end of the pulling rod; and the upper part of the pulling rod is inserted into the cavity. The cavity comprises an upper inverted cone and a lower cone; the part with the smallest inside diameter of the lower part of the upper inverted cone is connected with the part with the smallest inside diameter of the upper part of the lower cone; the coning angle of the upper inverted cone is greater than that of the lower cone; the biggest outside diameter of the rivet core is greater than the biggest inside diameter of the upper inverted cone; the biggest outside diameter of the rivet core is smaller than the biggest inside diameter of the lower cone; and the smallest inside diameter of the upper inverted cone is greater than the outside diameter of the pulling rod. The invention also provides a rivet-core pulling-rod circular rivet making machine. The invention provides the rivet-core pulling-rod circular rivet which is high in resource utilization rate and low in use cost and the special rivet making machine thereof.
Description
Technical field
The invention belongs to rivet and riveting machine field, especially a kind of self-plugging rivet and special-purpose riveting machine thereof.
Background technique
As everyone knows; According to GB/T12617.1-2006 and GB/T12618.1-2006 etc.; Country has carried out standardization to self-plugging rivet, specifically provides scope, specific quoting document, size, combination of materials and surface treatment, mechanical property, workmanship and acceptance, sign and packing, mark totally eight regulations.And stipulated that nail body diameter is that 2.4mm～5mm, nail body material are that aluminum alloy (AIA), nail core material are steel relevant parameters such as (St).
Self-plugging rivet is one type of rivet that blind riveting is used, and special tool---riveting machine is riveted but must use, and has in the market manually and pneumatic two types riveting machine.This type rivet is specially adapted to the riveted joint occasion that conventional rivets (rivet on the palpus two sides) adopted in inconvenience, so be widely used on the products such as building, machinery, automobile, boats and ships, aircraft, electrical equipment, furniture.The self-plugging rivet type has enclosed type to put down round end self-plugging rivet, 120 deg flush head break mandrel blind rivers, the flat round end self-plugging rivet of open type etc.Wherein the widest with the flat round end self-plugging rivet application of open type, the countersunk head self-plugging rivet is applicable to that the surface needs level and smooth riveted joint occasion, and Closed End Blind Rivet is applicable to have relatively high expectations load and the riveted joint occasion with certain sealability.
Although self-plugging rivet is standardization, and its application area is quite extensive.But its maximum deficiency point is that existing self-plugging rivet is after the riveting machine staking, and the nail body is fixed in connected piece, and nail core pull bar receives the limitations affect and operator self the environmental consciousness deficiency of self-plugging rivet self structure, is in most cases directly thrown away nature.One of which is unfavorable to environment, and it two is a kind of extremely serious waste of material.Environmental pollution is unquestionable, with regard to the waste of material phenomenon, calculates according to the 4 * 10mm self-plugging rivet that provides on the market, and the shared volume of nail body roughly is 31.1 ∏ mm
3, the shared volume of nail core pull bar is about 40 ∏ mm
3, if nail core pull bar can recycle, the material economy rate is 56.26%.In other words, if a box rivet has 500,30 yuan of market prices, wherein nearly 17 yuan cost of material need be recycled or unfeelingly wasted, and befouling environment.Big it, with regard to a country, total material unaccounted-for (MUF) amount is just quite serious.
2.4,3,3.2,4,4.8,5 six kind of specification in the new national standard there be the self-plugging rivet nominal diameter:.The structure that adopt its nail body inside all is inner cylinders, and this just causes following closely the core pull bar will cause the nail body to produce deformation, the workpiece of riveting over, and the rod head diameter needs bigger than rivet nominal diameter, and external broach is extremely to a certain degree, and it is inner that rod head breaks at the nail body.
Summary of the invention
For the deficiency that resource utilization is low, cost is high that overcomes existing self-plugging rivet, the present invention provides a kind of circulating rivet of nail core pull bar and special-purpose riveting machine thereof that improves resource utilization, reduces user cost.
The technical solution adopted for the present invention to solve the technical problems is:
The circulating rivet of a kind of nail core pull bar comprises nail body and nail core bar, and the middle part of said nail body is provided with cavity, and said nail core bar comprises nail core and pull bar, and said nail core is positioned at the upper end of pull bar, and the top of said pull bar is sleeved in the cavity; Said cavity comprises inverted cone and following circular cone; The said bottom minimum diameter of going up inverted cone is in the said little inner radius in top of circular cone down and joins; The cone angle of said upward inverted cone is bigger than the cone angle of said circular cone down; The maximum outside diameter of said nail core is bigger than the maximum inner diameter of said upward inverted cone, and the maximum outside diameter of said nail core is littler than the maximum inner diameter of said circular cone down, and the minimum diameter of said upward inverted cone is bigger than the external diameter of said pull bar.
A kind of riveting machine; Said riveting machine comprises shell, in the enclosure the automatic clamping mechanism in front is installed, pulling force clamping mechanism and deliver to the feeding mechanism of work station in order to will follow closely body; The circulating rivet of nail core pull bar comprises nail body and nail core bar; Said nail core bar comprises nail core and pull bar, and the top of said pull bar is provided with in order to the automatic clamping mechanism in front with pull bar chucking location, and the middle part of said pull bar is provided with the pulling force clamping mechanism that pumps in order to chucking and drive stay; The below of said pull bar is provided with said feeding mechanism; The nail body of said feeding mechanism place station be positioned at said pull bar under, said nail body place station under be provided with push rod, the maximum outside diameter of said push rod upper end is between the internal diameter of the lower end of the maximum outside diameter of said nail body and said nail body; The internal diameter of said push rod is bigger than the external diameter of said pull bar, and said push rod is connected with the feed mechanism that pumps in order to the drive push rod.
Further; The automatic clamping mechanism in said front comprises on the automatic dop of triangle, the automatic dop of triangle that cover and the automatic dop of triangle trap; Cover is trapped with the automatic dop of triangle and is fixedly connected on the automatic dop of said triangle, and the automatic dop of said triangle is trapped and installed in the enclosure, and the internal recess of overlapping on the automatic dop of said triangle embeds the automatic dop of said triangle; Said internal recess is installed automatic garter spring; Said automatic garter spring withstands on the automatic dop of said triangle, and the automatic dop of said triangle is the circular cone inclined-plane near the inboard of said pull bar, and the automatic dop of said triangle withstands on the said pull bar.
Further again, the automatic dop of said triangle has three, and three automatic dops are 120 degree distributions at interval at circumferencial direction.
Further; Said pulling force clamping mechanism comprises clamping dop, rivet pulling force clamping head, upper spring, lower spring and guide pillar, and the elasticity coefficient of said upper spring is littler than the elasticity coefficient of said lower spring, and said clamping dop is stuck in outside the said pull bar; Said clamping dop is the circular cone inclined-plane near the inboard of said pull bar; The bottom of said clamping dop is connected with the upper end of said guide pillar, and said upper spring is sleeved on the top of said guide pillar, and the upper end of said upper spring is connected with the bottom of said clamping dop; Said rivet pulling force clamping head is not stuck in outside the said pull bar when not receiving external force; Said rivet pulling force clamping head comprises clamping head outer shroud, middle fixed cover and in order to draw close the telescopic chuck of tensioning when the pressurized to pull bar, the lower end on said circular cone inclined-plane is pressed in outside the said telescopic chuck, and said telescopic chuck is connected with an end of clamping head spring; The other end of said clamping head spring withstands on the said middle fixed cover; Said clamping head outer shroud is fixedly connected with said middle fixed cover, and the lower end of said upper spring is connected with the upper end of said clamping head outer shroud, and said clamping head is equipped with the pilot hole that supplies said guide pillar to pass outward; The middle part suit lower spring of said guide pillar; The lower end of said clamping head outer shroud is connected with the upper end of said lower spring, and the lower end of said lower spring is connected with the enclosure pressing plate, and the lower end of said guide pillar is connected with the driving mechanism that the driving guide pillar pumps.
The lower end of said guide pillar is fixedly connected with tension board, and said tension board can slide up and down to be installed in the said shell, and line shaft is installed in the lower end of said tension board, and said line shaft is connected with Power Drive Unit.
Said Power Drive Unit comprises the hydraulic pressure shell, is provided with epicoele, cavity of resorption and controlled chamber in the said hydraulic pressure shell, is piston between said epicoele and the cavity of resorption; Said piston is fixedly connected with the lower end of said line shaft, and said epicoele is provided with hydraulic fluid port, and the said hydraulic fluid port of going up is provided with one-way valve; The said filler opening of going up one-way valve is communicated with said controlled chamber; Said cavity of resorption is provided with down hydraulic fluid port, and said hydraulic fluid port down is provided with down one-way valve, and the said oil outlet of one-way valve down is communicated with said controlled chamber; Hydraulic spring grease cup is installed in the said controlled chamber, and said hydraulic spring grease cup is connected with the operating device of controlling the volume convergent-divergent of controlled chamber in order to following pressing spring.
Said operating device comprises power lever, handle and connecting rod and free bearing; One end of said power lever is connected with hydraulic spring grease cup; The other end of said power lever and the middle part of handle and connecting rod are hinged; Said free bearing is installed in the outside of said hydraulic pressure shell, and the upper end of said handle and connecting rod and said free bearing are hinged, and the lower end of said handle and connecting rod is provided with operating grip.
Front end is installed in the upper end of said hydraulic pressure shell, and said front end is installed in the movable end of union, and said union is installed in the lower end of said shell.
Said line shaft is hollow structure, and said push rod passes described line shaft, and the lower end of said push rod is fixedly connected with operating stem, and said operating stem stretches out said hydraulic pressure shell, has the vertical chute that supplies operating stem to slide up and down on the said hydraulic pressure shell.
Said Power Drive Unit can be manually, pneumatic actuating device or Vidacare corp.
Said feeding mechanism comprises automatic roulette wheel; Said automatic roulette wheel is installed in rotation on the supporting frame; Support frame as described above is installed in the said shell, and the sidewall of said automatic roulette wheel has helical groove, and the rotation latch is installed in the said helical groove; Support frame as described above is provided with the chute that supplies said rotation latch to slide, and said automatic rotary shaft is to having at least two nail body suit holes that supply the nail body to place;
The internal diameter in said nail body suit hole is bigger than the maximum outside diameter of said nail body; Install in the said nail body suit hole in order to realize the symmetrical sheet elastic sheet of nail body small end axis centering; Minimum diameter is littler than the minimum outer diameter of said nail body in the nature space for said symmetrical sheet elastic sheet, and the stressed rear space maximum inner diameter of said symmetrical sheet elastic sheet is bigger than the maximum outside diameter of said nail body.Above-mentioned fitting relation can be realized: under nature, can the nail body be put into said nail body suit hole, and realize the axis centering of nail body through symmetrical sheet elastic sheet; When push rod pushing tow nail body is stressed, open after symmetrical sheet elastic sheet is stressed then, the nail body can pass through smoothly.
The rib bearing is installed at the two ends of said automatic roulette wheel, and said rib Bearing Installation is on stationary axle, and said stationary axle both sides are equipped with the backgauge axle sleeve, and said stationary axle and backgauge axle sleeve are installed on the support frame as described above.
Technical conceive of the present invention is: the two-sided conical surface that is inside contraction of the nail body of rivet; Like this, nail core pull bar not only outwards expands but also inside the contraction when nail body produces deformation under the effect of external broach; Extremely to a certain degree; When following closely body inner conical face size greater than nail core rod head biggest place diameter, complete the withdrawing from of nail core pull bar, the riveted joint of nail body is workpiece upward.In addition, because of the recycle of nail core pull bar, hardness should be bigger than the nail body during its material selection.
Riveting machine is made up of five critical pieces, is respectively: the automatic clamping mechanism in front, pulling force clamping mechanism, feeding mechanism, shell mechanism and hydraulic power mechanism.Automatically open during the feeding of the automatic clamping mechanism principal security in front nail body, chucking nail core pull bar automatically behind nail body to the work station carries out position limit to nail body head when the nail bodily form becomes.Vacant circular hole in the middle of under the pulling force clamping mechanism nature, its size and nail body head maximum diameter place basically identical tighten nail core pull bar earlier during work, to it active force backward is provided then, cause the nail bodily form to become, and outer power removes and automatically reverts to original position.Automatic rotating mechanism provides preparation nail body.The shell mechanism effect mainly is to connect each parts in one, and each mechanism is rationally effective.Hydraulic power mechanism mainly provides power, and in addition, push rod designs on it, will prepare the nail body and be pushed into working position.
The existing relatively riveting machine of integral body, part is more relatively, but structure is meticulous, connection and reasonable arrangement.The most important thing is that this structure can realize following closely recycling of core pull bar.
1), improve resource utilization, energy saving, protection environment beneficial effect of the present invention mainly shows:: after nail core pull bar can recycle, the material economy rate of rivet self was up to 56.26%; 2), preparation nail body is installed on the automatic roulette wheel of feeding mechanism; Once can place six to eight preparation nail bodies, utilize sinusoidal guide groove mechanism, the last rivet nail of every riveted joint body; Automatic rotating mechanism rotates respective angles; Preparation nail body is to correct position, and then each placement rivet time of saving, improves total efficiency; 3), as long as external force acts on the power arm-tie, its final active force all can cause pull bar to accomplish the staking process.Can be a lot of and the power arm-tie is applied its kind of external force, novel riveting machine designs with hydraulic power mechanism, also can design manual novel riveting machine, pneumatic novel riveting machine, and electronic novel riveting machine.Combine other several parts mechanisms of novel riveting machine just can develop as long as power mechanism is made respective change, flexibility is stronger relatively; 4), according to six kinds of specifications of the self-plugging rivet nominal diameter of stipulating in the new national standard.The major part of five parts all need not done big variation in the novel riveting machine, only needs to change circulating nail core pull bar, and the automatic roulette wheel of placement preparation nail body and nail body push rod etc. get final product, and interchangeability is stronger relatively; 5), reduced user cost.
Description of drawings
Fig. 1 is the structural representation of the circulating rivet of nail core pull bar.
Fig. 2 is the structural representation of the special-purpose riveting machine of the circulating rivet of nail core pull bar.
Fig. 3 is the schematic representation of nail core pull bar and front clamping mechanism thereof.
Fig. 4 is the schematic representation of pulling force clamping mechanism.
Fig. 5 is the schematic representation of feeding mechanism.
Fig. 6 is the stereogram of feeding mechanism.
Fig. 7 is the schematic representation of hydraulic power unit.
Fig. 8 is the side view of Fig. 7.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1, the circulating rivet of a kind of nail core pull bar comprises nail body 2 and nail core bar 1, and the middle part of said nail body 2 is provided with cavity, and said nail core bar 1 comprises nail core and pull bar, and said nail core is positioned at the upper end of pull bar, and the top of said pull bar is sleeved in the said cavity; Said cavity comprises inverted cone and following circular cone; The said bottom minimum diameter of going up inverted cone is in the said little inner radius in top of circular cone down and joins; The cone angle of said upward inverted cone is bigger than the cone angle of said circular cone down; The maximum outside diameter of said nail core is bigger than the maximum inner diameter of said upward inverted cone, and the maximum outside diameter of said nail core is littler than the maximum inner diameter of said circular cone down, and the minimum diameter of said upward inverted cone is bigger than the external diameter of said pull bar.
The inner structure that adopts of existing self-plugging rivet nail body all is inner cylinders, and being riveted on the workpiece nail core rod head, to break at the nail body inner.What new rivets nail body internal structure adopted is, the two-sided conical surface that is inside contraction, and top cone angle is more relatively large, as shown in Figure 1 than following.For the benefit of express, circulating nail core pull bar length is through dwindling among the figure, and main structure remains unchanged.The head employing is followed closely the oval structure of conical surface coupling on the body with rivet, and the centre section of having worm structure with pulling force clamping mechanism clamping head internal thread coupling, is beneficial to clamping and moves together.In addition, because of the recycle of nail core pull bar, hardness should be bigger than new rivets nail body during its material selection.
Working principle: circulating nail core pull bar is followed closely body relatively and is moved backward under the effect of external broach, and nail body head receives the front automatic dop of automatic clamping mechanism triangle spacing; The nail body produces deformation; Deformation is not only outwards expanded simultaneously but also is inwardly shunk, and when nail core rod head is necessarily located to new rivets nail body inner conical face, its inner circular radius size is during greater than nail core rod head biggest place diameter; Complete the withdrawing from of nail core pull bar, the nail body is riveted on the workpiece.
With reference to Fig. 1～Fig. 8; A kind of riveting machine; Said riveting machine comprises shell 3, be installed in the automatic clamping mechanism in front in the shell 34, pulling force clamping mechanism 5 and deliver to the feeding mechanism 6 of work station in order to will follow closely body; The circulating rivet of nail core pull bar comprises nail body 2 and nail core bar 1, and said nail core bar 1 comprises nail core and pull bar, and the top of said pull bar is provided with in order to the automatic clamping mechanism 4 in front with pull bar chucking location; The middle part of said pull bar is provided with the pulling force clamping mechanism 5 that pumps in order to chucking and drive stay; The below of said pull bar is provided with said feeding mechanism 6, the nail body of said feeding mechanism 6 place station be positioned at said pull bar under, said nail body place station under be provided with push rod 8; The maximum outside diameter of said push rod 8 upper ends is between the internal diameter of the lower end of the maximum outside diameter of said nail body and said nail body, and the internal diameter of said push rod 8 is bigger than the external diameter of said pull bar.
The automatic clamping mechanism 4 in said front comprises that cover 44 and the automatic dop of triangle trap 45 on the automatic dop of triangle 43, the automatic dop of triangle; Cover 44 is trapped with the automatic dop of triangle and 45 is fixedly connected on the automatic dop of said triangle; The automatic dop of said triangle is trapped and 45 is installed in the shell 3; The internal recess of cover 44 embeds the automatic dop 43 of said triangle on the automatic dop of said triangle, and said internal recess is installed automatic garter spring 42, and said automatic garter spring 42 withstands on the automatic dop 43 of said triangle; The automatic dop 43 of said triangle is the circular cone inclined-plane near the inboard of said pull bar, and the automatic dop 43 of said triangle withstands on the said pull bar.
The automatic dop 43 of said triangle has three, and three automatic dops are 120 degree distributions at interval at circumferencial direction.
Said pulling force clamping mechanism 5 comprises clamping dop 59, rivet pulling force clamping head 57, upper spring 58, lower spring 52 and guide pillar; The elasticity coefficient of said upper spring 58 is littler than the elasticity coefficient of said lower spring 52; Said clamping dop 59 is stuck in outside the said pull bar, and said clamping dop 59 is the circular cone inclined-plane near the inboard of said pull bar, and the bottom of said clamping dop 59 is connected with the upper end of said guide pillar; Said upper spring 58 is sleeved on the top of said guide pillar; The upper end of said upper spring 58 is connected with the bottom of said clamping dop 59, and said rivet pulling force clamping head 57 is not stuck in outside the said pull bar when not receiving external force, and said rivet pulling force clamping head 57 comprises clamping head outer shroud 54, middle fixed cover 51 and in order to draw close the telescopic chuck of tensioning when the pressurized to pull bar; The lower end on said circular cone inclined-plane is pressed in outside the said telescopic chuck; Said telescopic chuck is connected with an end of clamping head spring 56, and the other end of said clamping head spring 56 withstands on the said middle fixed cover 51, and said clamping head outer shroud 54 is fixedly connected with said middle fixed cover 51; The lower end of said upper spring 58 is connected with the upper end of said clamping head outer shroud 54; Said clamping head outer shroud 54 is provided with the pilot hole that supplies said guide pillar to pass, the middle part suit lower spring 52 of said guide pillar, and the lower end of said clamping head outer shroud 54 is connected with the upper end of said lower spring 52; The lower end of said lower spring 52 is connected with the enclosure pressing plate, and the lower end of said guide pillar is connected with the driving mechanism that the driving guide pillar pumps.
The lower end of said guide pillar is fixedly connected with tension board 71, and said tension board 71 can slide up and down to be installed in the said shell 3, and line shaft is installed in the lower end of said tension board 71, and said line shaft is connected with Power Drive Unit 7.
Said Power Drive Unit 7 comprises hydraulic pressure shell 74, is provided with epicoele B, cavity of resorption C and controlled chamber A in the said hydraulic pressure shell 74, is piston between said epicoele B and the cavity of resorption C; Said piston is fixedly connected with the lower end of said line shaft, and said epicoele is provided with hydraulic fluid port, and the said hydraulic fluid port of going up is provided with one-way valve 78; The said filler opening of going up one-way valve 78 is communicated with said controlled chamber; Said cavity of resorption is provided with down hydraulic fluid port, and said hydraulic fluid port down is provided with down one-way valve 713, and the said oil outlet of one-way valve 713 down is communicated with said controlled chamber; Hydraulic spring grease cup 711 is installed in the said controlled chamber, and said hydraulic spring grease cup 711 is connected with the operating device of controlling the volume convergent-divergent of controlled chamber in order to following pressing spring.
Said operating device comprises power lever 712, handle and connecting rod 710 and free bearing 714; One end of said power lever 712 is connected with hydraulic spring grease cup 711; The middle part of the other end of said power lever 712 and handle and connecting rod 710 is hinged; Said free bearing 714 is installed in the outside of said hydraulic pressure shell 74, and the upper end of said handle and connecting rod 710 and said free bearing 714 are hinged, and the lower end of said handle and connecting rod 710 is provided with operating grip.
Said line shaft is hollow structure, and said push rod 8 passes described line shaft, and the lower end of said push rod 8 is fixedly connected with operating stem 76, and said operating stem 76 stretches out said hydraulic pressure shell 74, has the vertical chute that supplies operating stem to slide up and down on the said hydraulic pressure shell 74.
Said Power Drive Unit 7 can be manual driving device, pneumatic actuating device or Vidacare corp.
Said feeding mechanism 6 comprises automatic roulette wheel 63; Said automatic roulette wheel 63 is installed in rotation on the supporting frame 62; Support frame as described above 62 is installed in the said shell 3, and the sidewall of said automatic roulette wheel 63 has helical groove, and rotation latch 61 is installed in the said helical groove; Support frame as described above 62 is provided with the feeding chute that supplies said rotation latch to slide, and said automatic rotary shaft is to having at least two nail body suit holes that supply nail body 2 to place;
Said nail body suit hole internal diameter is bigger than said nail body 2 maximum outside diameters, installs in the said nail body suit hole in order to realize the symmetrical sheet elastic sheet 67 of nail body axis centering.Minimum diameter is littler than the minimum outer diameter of said nail body 2 in the nature space for said symmetrical sheet elastic sheet 67, and the stressed rear space maximum inner diameter of said symmetrical sheet elastic sheet can be bigger than the maximum outside diameter of said nail body 2.
Rib bearing 68 is installed at the two ends of said automatic roulette wheel 63; Said rib bearing 68 is installed on the stationary axle 64; Said stationary axle 64 both sides are equipped with backgauge axle sleeve 66, and said stationary axle 64 and backgauge axle sleeve 66 are installed on the support frame as described above 62, and 65 pairs of stationary axle 64 of jump ring are spacing.
In the present embodiment, automatic clamping mechanism 4 integral installations in front are fixed through the upper tip of shell 3 in the upper end of shell.Pulling force clamping mechanism 5 integral body are inner along the upper end that inner three the T type guide blocks of shell front end are mounted to shell 3, and are fixing through tension board 71.Feeding mechanism 6 integral installations utilize knot that can be undone by a pull for convenience detach and fixing in the rear end of shell 3.Hydraulic drive mechanism 7 is fixed on the lower end outmost turns outside thread of shell 3 through the loose joint cover.Five parts constitute an organic whole, realize the periodic duty of rivet pull bar jointly.
Generally speaking: push rod 8 promotes to prepare in the feeding mechanism 6 the nail body under external force and moves upward, to working position topmost.The automatic clamping mechanism 4 in front tightens automatically, and hydraulic power mechanism 7 provides power to cause pulling force clamping mechanism 5 two-part spring deformations, and acting in conjunction moves after making the circulation pull bar, and nail body 2 is riveted to workpiece.External force is removed, and the each several part spring makes each part return of parts, and the new preparation nail body of feeding mechanism 6 so circulates to working position.
The structure of the automatic clamping mechanism 4 in front: cover 44 traps 45 with the automatic dop of triangle on the automatic dop of triangle, tightens fixing bolt 46 automatically through two and is fixed in one.Embed three the 120 automatic dops 43 of degree triangle in its internal recess, the automatic dop 43 side lower central of each triangle are opened diameter 4.5mm circular hole, and mounting point and dop put Kong Chengyi bar axis, install three automatic garter springs 42.Nail core bar 2 heads are installed nail body 1, and the two is installed on the automatic dop of triangle 43 tops as a whole.
The structure of pulling force clamping mechanism 5: rivet pulling force clamping head 57 is made up of two same sections, is semi-circular butt joint clamping head, is installed on clamping head outer shroud 54 inside.Fixed cover 51 in the middle of clamping head outer shroud 54 bottoms, installing is then fixed with two clamping head outer shroud Cock screws 53.Clamping head spring 56 is installed between rivet pulling force clamping head 57 and middle fixed cover 51, fixing with clamping head Cock screw 55.After installing spring 58 on three guide pillars of clamping dop 59, integral installation is inner in clamping head outer shroud guide pillar pilot hole, installs three lower springs 52 at last.
Because pulling force clamping mechanism 5 overall fixed are in shell 3; Lower spring 52 bottoms are blocked by the tension board 71 of shell inside middle; The tension effect of three guide pillar power source mechanisms through the back clamps dop 59 beginnings and shrinks downwards, because upper spring 58 is littler than lower spring 52 elasticity coefficient; Upper spring 58 spaces of living at first are compressed, and clamp dop 59 and cause two-part rivet pulling force clamping head to shrink the said pull bar of clamping.Continuing to apply power makes three guide pillars continue to move down; This moment, lower spring 52 spaces of living in began to be compressed; Pull bar after the clamping begins to move down because its head contact stud body, the nail body by the automatic dop 43 of triangle stop can't after move; Workpiece is gone up in the 1 beginning deformation riveted joint of nail body, and extremely certain core bar 2 of constantly following closely breaks away from from nail body 1.When power source is decorporated, two-part spring automatically returns to former having living space.
Feeding mechanism 6 adopts automatic rotating mechanism; Its structure is: six preparation nail bodies at first are installed in six preparations of automatic roulette wheel chamber; Automatically rib bearing 68 is installed at roulette wheel 63 two ends respectively, is installed on together on the roulette wheel stationary axle 64, installs backgauge axle sleeve 66 more respectively; Overall fixed is carried out spacing through 65 pairs of stationary axle of automatic rotating mechanism jump ring 64 on supporting frame 62 again.Meanwhile, install rotation latch 61 between automatic roulette wheel 63 and supporting frame 62.
The automatic rotating mechanism integral installation is after on the riveting machine, and the body spatial position is confirmed relatively.The outer side surface of its automatic roulette wheel 63 is designed with guide groove, and the angle of rotation of one-period is 360
0/ n, n represent automatic roulette wheel preparation chamber number, tentatively design by n=6.Rotation latch 61 whenever carries out a to-and-fro motion, and the roulette wheel rotation 360 automatically
0/ n encloses, and can guarantee axial location of preparing the chamber center line over against said push rod 8 topmost, and preparation nail body is to be pushed out to working position next time to get ready.After preparation nail body was all finished using, integral body was taken out automatic rotating mechanism, installed new preparation nail body.
The structure of shell 3 is: after the automatic clamping mechanism 4 in front is installed in shell 3 upper ends, the shell upper tip is installed, the automatic clamping mechanism 4 in front is carried out fixed limit.According to three guide-localization T type pieces of shell upper end lower interior portion, install pulling force clamping mechanism 5 again, carry out spacing to the lower spring in the pulling force clamping mechanism 5 52 through installing the enclosure pressing plate.And the enclosure pressing plate is through after being threaded of shell upper end and shell lower end, push against act on carry out spacing.After installing the shell lower end, install the automatic rotating mechanism knot that can be undone by a pull in its side and fix, it installs hydraulic power mechanism at the back.
The structure of hydraulic power unit 7 is: hydraulic pressure shell 74 inside are provided with the hydraulic pressure return flow line, through 75 controls of pressure release knob.In addition, through hydraulic pressure push shaft piston and tension board 71 and first one-way valve 78, second one-way valve 713, three spaces are told in hydraulic mechanism inside.Following one-way valve 78 control hydraulic oil can only be from the C chamber through the A of discharge orifice entering next time chamber; Last one-way valve 713 control hydraulic oil can only get into the B chamber from the A chamber through last return port; The oil pocket internal stop is isolated A chamber and C chamber, oil body in hydraulic pressure outer casing back head and the Front oil seal plate Seal cage.Handle and connecting rod 710 and power lever 712 and hydraulic spring grease cup 711 common control A cavity volume spatial variations, each chamber fluid changes causes hydraulic pressure push shaft piston and tension board 71 motions, leans on C chamber internal reset spring reset.In addition, hydraulic pressure shell 4 flutings provide push rod 8 to pump.Hydraulic power mechanism integral body is to be connected with shell 3 and to fix through the union 73 of hydraulic pressure shell.
Hydraulic power mechanism mainly is after masterpiece is used for handle and connecting rod 710 outside, cause the variation of volume space in the power lever 712 compression A chambeies, and two, A chamber is controlled by an one-way valve; Therefore; When the A chamber dwindled, following one-way valve 78 was closed, and unnecessary hydraulic oil gets in the B chamber through last one-way valve 713; Enlarge constantly when the A chamber receives the spring restoring force, last one-way valve 713 is closed, and hydraulic oil one-way valve 78 under the warp of C chamber is supplemented to the A chamber.Cause hydraulic pressure push shaft and tension board 71 to move downward like this, drive 5 work of pulling force clamping mechanism.After rivet nail body was riveted on the workpiece, external force stopped, at this moment; Open pressure release knob 75; The upper end of the inner returning spring in C chamber withstands on the bottom of said piston, and the lower end of the inner returning spring in said C chamber is positioned at the bottom in said C chamber, under the effect of the inner returning spring in C chamber; B chamber hydraulic oil is back in the C chamber, and realization work purpose so circulates.
The circulating rivet of nail core pull bar of present embodiment and riveting machine can be suitable for the application of existing self-plugging rivet and existing riveting machine basically.Moreover, because the variability of novel riveting machine power source especially can be developed hydraulic type and electrodynamic type riveting machine, it is used can be more convenient.On products such as building, machinery, automobile, boats and ships, bridge, aircraft, electrical equipment, furniture, good application prospects is arranged all.
Claims (10)
1. the circulating rivet of nail core pull bar comprises nail body and nail core bar, and the middle part of said nail body is provided with cavity, and said nail core bar comprises nail core and pull bar, and said nail core is positioned at the upper end of pull bar, and the top of said pull bar is sleeved in the cavity; It is characterized in that: said cavity comprises inverted cone and following circular cone; Said minimum diameter place, bottom and the said minimum diameter place, top of circular cone down of going up inverted cone joins; The cone angle of said upward inverted cone is bigger than the cone angle of said circular cone down; The maximum outside diameter of said nail core is bigger than the maximum inner diameter of said upward inverted cone, and the maximum outside diameter of said nail core is littler than the maximum inner diameter of said circular cone down, and the minimum diameter of said upward inverted cone is bigger than the external diameter of said pull bar.
2. riveting machine that adopts the circulating rivet of nail core pull bar as claimed in claim 1; It is characterized in that: said riveting machine comprises shell, in the enclosure the automatic clamping mechanism in front is installed, pulling force clamping mechanism and deliver to the feeding mechanism of work station in order to will follow closely body; The circulating rivet of nail core pull bar comprises nail body and nail core bar; Said nail core bar comprises nail core and pull bar; The top of said pull bar is provided with in order to the automatic clamping mechanism in front with pull bar chucking location, and the middle part of said pull bar is provided with the pulling force clamping mechanism that pumps in order to chucking and drive stay, and the below of said pull bar is provided with said feeding mechanism; The nail body of said feeding mechanism place station be positioned at said pull bar under; Said nail body place station under be provided with push rod, the maximum outside diameter of said push rod upper end is between the internal diameter of the lower end of the maximum outside diameter of said nail body and said nail body, the internal diameter of said push rod is bigger than the external diameter of said pull bar.
3. riveting machine as claimed in claim 2; It is characterized in that: the automatic clamping mechanism in said front comprises on the automatic dop of triangle, the automatic dop of triangle that cover and the automatic dop of triangle trap; Cover is trapped with the automatic dop of triangle and is fixedly connected on the automatic dop of said triangle, and the automatic dop of said triangle is trapped and installed in the enclosure, and the internal recess of overlapping on the automatic dop of said triangle embeds the automatic dop of said triangle; Said internal recess is installed automatic garter spring; Said automatic garter spring withstands on the automatic dop of said triangle, and the automatic dop of said triangle is the circular cone inclined-plane near the inboard of said pull bar, and the automatic dop of said triangle withstands on the said pull bar.
4. like claim 2 or 3 described riveting machines; It is characterized in that: said pulling force clamping mechanism comprises clamping dop, rivet pulling force clamping head, upper spring, lower spring and guide pillar, and the elasticity coefficient of said upper spring is littler than the elasticity coefficient of said lower spring, and said clamping dop is stuck in outside the said pull bar; Said clamping dop is the circular cone inclined-plane near the inboard of said pull bar; The bottom of said clamping dop is connected with the upper end of said guide pillar, and said upper spring is sleeved on the top of said guide pillar, and the upper end of said upper spring is connected with the bottom of said clamping dop; Said rivet pulling force clamping head is stuck in outside the said pull bar; Said rivet pulling force clamping head comprises clamping head outer shroud, middle fixed cover and in order to draw close the telescopic chuck of tensioning when the pressurized to pull bar, the lower end on said circular cone inclined-plane is pressed in outside the said telescopic chuck, and said telescopic chuck is connected with an end of clamping head spring; The other end of said clamping head spring withstands on the said middle fixed cover; Said clamping head outer shroud is fixedly connected with said middle fixed cover, and the lower end of said upper spring is connected with the upper end of said clamping head outer shroud, and said clamping head is equipped with the pilot hole that supplies said guide pillar to pass outward; The middle part suit lower spring of said guide pillar; The lower end of said clamping head outer shroud is connected with the upper end of said lower spring, and the lower end of said lower spring is connected with the enclosure pressing plate, and the lower end of said guide pillar is connected with the Power Drive Unit that the driving guide pillar pumps.
5. riveting machine as claimed in claim 4; It is characterized in that: the lower end of said guide pillar is fixedly connected with tension board; Said tension board can slide up and down to be installed in the said shell, and line shaft is installed in the lower end of said tension board, and said line shaft is connected with Power Drive Unit.
6. riveting machine as claimed in claim 5 is characterized in that: said Power Drive Unit comprises the hydraulic pressure shell, is provided with epicoele, cavity of resorption and controlled chamber in the said hydraulic pressure shell; It between said epicoele and the cavity of resorption piston; Said piston is fixedly connected with the lower end of said line shaft, and said epicoele is provided with hydraulic fluid port, and the said hydraulic fluid port of going up is provided with one-way valve; The said filler opening of going up one-way valve is communicated with said controlled chamber; Said cavity of resorption is provided with down hydraulic fluid port, and said hydraulic fluid port down is provided with down one-way valve, and the said oil outlet of one-way valve down is communicated with said controlled chamber; Hydraulic spring grease cup is installed in the said controlled chamber, and said hydraulic spring grease cup is connected with the operating device of controlling the volume convergent-divergent of controlled chamber in order to following pressing spring.
7. riveting machine as claimed in claim 6; It is characterized in that: said operating device comprises power lever, handle and connecting rod and free bearing; One end of said power lever is connected with hydraulic spring grease cup, and the other end of said power lever and the middle part of handle and connecting rod are hinged, and said free bearing is installed in the outside of said hydraulic pressure shell; The upper end of said handle and connecting rod and said free bearing are hinged, and the lower end of said handle and connecting rod is provided with operating grip.
8. riveting machine as claimed in claim 6; It is characterized in that: said line shaft is hollow structure; Said push rod passes described line shaft; The lower end of said push rod is fixedly connected with operating stem, and said operating stem stretches out said hydraulic pressure shell, has the vertical chute that supplies operating stem to slide up and down on the said hydraulic pressure shell.
9. riveting machine as claimed in claim 5 is characterized in that: said Power Drive Unit is manual driving device, pneumatic actuating device or Vidacare corp.
10. like claim 2 or 3 described riveting machines; It is characterized in that: said feeding mechanism comprises automatic roulette wheel, and said automatic roulette wheel is installed in rotation on the supporting frame, and support frame as described above is installed in the said shell; The sidewall of said automatic roulette wheel has helical groove; The rotation latch is installed in the said helical groove, and support frame as described above is provided with the chute that supplies said rotation latch to slide, and said automatic rotary shaft is to having at least two nail body suit holes that supply the nail body to place;
The internal diameter in said nail body suit hole is bigger than the maximum outside diameter of said nail body; Install in the said nail body suit hole in order to realize the symmetrical sheet elastic sheet of nail body small end axis centering; Minimum diameter is littler than the minimum outer diameter of said nail body in the nature space for said symmetrical sheet elastic sheet, and the stressed rear space maximum inner diameter of said symmetrical sheet elastic sheet is bigger than the maximum outside diameter of said nail body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102755629A CN101943199B (en) | 2010-09-08 | 2010-09-08 | Rivet-core pulling-rod circular rivet and special rivet making machine thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102755629A CN101943199B (en) | 2010-09-08 | 2010-09-08 | Rivet-core pulling-rod circular rivet and special rivet making machine thereof |
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| Publication Number | Publication Date |
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| CN101943199A CN101943199A (en) | 2011-01-12 |
| CN101943199B true CN101943199B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102755629A Expired - Fee Related CN101943199B (en) | 2010-09-08 | 2010-09-08 | Rivet-core pulling-rod circular rivet and special rivet making machine thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913519A (en) * | 2012-09-27 | 2013-02-06 | 贵州航太精密制造有限公司 | Connecting device for race and sandwich plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106015243A (en) * | 2016-07-05 | 2016-10-12 | 任宝全 | Manufacturing method of gradual thinning structure riveting nail for blind hole |
| CN107869510B (en) * | 2017-12-11 | 2023-10-03 | 成都飞机工业（集团）有限责任公司 | Quick punching point safety device |
| CN111772285B (en) * | 2020-07-28 | 2022-07-12 | 泰安圣锦服装有限公司 | Leather riveting device for garment processing |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323873A (en) * | 1969-07-28 | 1973-07-18 | Avdel Ltd | Tubular rivet |
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- 2010-09-08 CN CN2010102755629A patent/CN101943199B/en not_active Expired - Fee Related
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| 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 |
| CN2668915Y (en) * | 2003-12-10 | 2005-01-05 | 吴建斌 | Rivet |
| CN201132199Y (en) * | 2007-10-30 | 2008-10-15 | 安长龙 | Auto rivet driver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102913519A (en) * | 2012-09-27 | 2013-02-06 | 贵州航太精密制造有限公司 | Connecting device for race and sandwich plate |
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| Publication number | Publication date |
|---|---|
| CN101943199A (en) | 2011-01-12 |
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