• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. TOOL FOR SUPPORTING RIVETS WITH VIBRATION DAMPING, containing corpus; with a handle for applying to the tool from the operator’s hand a supporting force and a through axial cylindrical bore in which a piston with a seal is installed with the possibility of reciprocating movement and formation between its end surface and the body of the damping chamber, and means for supplying compressed air to the damping chamber, mounted in an axial cylindrical bore of the housing, with a die mounted at the end of the piston opposite to the damping chamber and supporting the rivets The cylindrical bore of the housing is made with a support collar for limiting the front movement of the piston, characterized in that, in order to increase the vibration damping efficiency of the tool, the compressed air supply means is made in the form of an adjustable pressure regulator to provide a change in air pressure in the damping chamber in the range 1 , 3 - 2.5 bar, the volume of the damping chamber exceeds the volume displaced by the medium medium during its recoil, CO, and between the piston and the support shoulder in the axial cylindrical orifice Elastic damping element installed. 2. A tool according to claim 1, characterized in that the piston is made in a cylindrical head C, the length of which is 1.3-3 diameters of the piston.
    公开号:SU1131463A3
    申请号:SU813343690
    申请日:1981-10-01
    公开日:1984-12-23
    发明作者:Эммерих Вольфганг
    申请人:Атлас Копко Актиеболаг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to machine-assembly production, in particular to riveting operations, and can be used as one tool for "maintaining rivets with vibration damping." A hand-held tool is known for supporting rivets with vibration damping, comprising a housing with a handle for applying an supporting force from the operator’s hand to the tool and a through axial cylindrical bore in which a piston with a seal is installed with the possibility of reciprocating movement and formation between its face the surface and housing of the die-plate chamber, and means for supplying compressed air to the damping chamber installed in the axial cylindrical opening of the housing, while at the end A screw opposite the damping chamber is fitted with a matrix to support the rivets, and the axial cylindrical opening of the housing is provided with a support shoulder to limit the forward movement of the piston 1. A disadvantage of the known device is that a relatively small amount of air behind the damping joint and a small total piston mass And matrices tend to cause large and poorly damped forces in the hull. In addition, no means are provided for adapting the maintenance operation to changes in working conditions. The purpose of the invention is to increase the efficiency of damping tool vibration. The goal is achieved by the fact that in the tool for supporting rivets with vibration damping, comprising a housing with a handle for applying force to the tool from the operator’s hand and having a through axial cylindrical bore in which a piston is installed with a seal with the possibility of reciprocating movement and formation between its end surface and the casing of the damping chamber, and means for supplying compressed air to the damping chamber installed in the axial cylindrical hole of the housing Ca, at the end of the piston opposite to the damping chamber, the die for supporting rivets is mounted, and the axial cylindrical 632 opening of the housing is made with a support shoulder — to limit the forward movement of the piston; the means for supplying compressed air is made in the form of an adjustable pressure regulator to ensure air pressure in the damping chamber in the range of 1.3-2.5 bar, the volume of the damping chamber (the chamber exceeds the volume of the medium displaced by the piston during its recoil, and between the piston and the support shoulder in the axial center of cylindrical hole is mounted an elastic damping element. In addition, the piston is made with a cylindrical head, the length of which is 1.3-3 times the diameter of the piston. FIG. 1 shows the tool during operation, longitudinal section; in fig. 2 is a partial section A-A in FIG. 1 in FIG. 3 is a side view of the tool matrix; FIG. 4 - a modified version of the tool, a partial longitudinal section. The hand-held tool 1 for supporting rivets by vibration damping comprises a cylindrical body 2 with an internal through axial cylindrical bore 3. In the bore 3 of the body 2 a piston 4 is installed with a seal with the possibility of reciprocating movement and formation between its end surface and the body 2 of the damping chamber. The piston 4 has a rear part 5 of a slightly reduced diameter and a similarly reduced diameter front part 6 for facilitating the reciprocating movement of the piston 4 in the cylindrical bore 3. The piston 4 also has a piston cylindrical head 7, the length of which is 0.1-3 the diameter of the piston 4, and the axially forward axial blind hole, or slot 8 around which the skirt 9 is formed. The skirt 9 ends with a transverse bearing surface 10 in the slot 8. The front wall 11 of the housing 2 has an annular thrust drill 12, a central inner bore 13 and an outer transverse groove 14 (FIG. 2) communicating with the bore 13, which allows access to the inside of the cylindrical hole 3 and to the inside of the socket 8 in the piston 4. The manual supporting tool 1 is equipped with various supporting dies 15, one of which is shown in FIG. 1, a friend in FIG. 3. Each die 15 has an intermediate hexagonal portion 16 and a cylindrical shank 17, which slides into the seat 9 of the piston A by fit with friction and, in essence, with a seal. The shank 17 can be inserted (removably) up to the stop into the bottom of the socket 8 through the hole formed by the groove 14 and the hole 13 in the front wall of the housing 2, while it rests with its end surface on the bearing surface 10 of the piston 4. In all the working positions the hexagon portion 16 interacts with opposing protrusions of the groove 14, preventing the matrix 15 from rotating relative to the cylindrical body 2. At the rear end of the orifice 3 of the cylinder 2 there is a means for supplying compressed air, including A valve having an adjusting spring 18. Through the handle 19 of the screw spindle 20 and the plug 21 it is possible to selectively load the spring 18 to apply an opposing force to the sealed balancing plunger 22 loaded with air pressure in the adjacent reduction chamber 23. The balancing plunger 22 is interacting contact with the rod having a smaller disc diameter 24 of the pressure reducing valve. A relatively weak KOHTp spring 25 in the valve chamber 26 in front of the disk 24 pushes the disk 24 to the closed position against the action of the balancing plunger 22 in the chamber 23. The chamber 26 is supplied with compressed air from an external source (not shown) through a hose 27 connected to the fitting 28 and Channel 29. The reduction chamber 23 communicates through the wide channel 30 with the opening 3, as a result of which an air cushion is created in the damping chamber behind the piston 4. The axial adjustment of the handle 19 changes the load on the spring 18, thanks to which it can be increased if desired and Chiva or decrease the pressure in reduction chamber 23 and thus pick up the pressure in the damping chamber in the range of 1.3 - 2.5 bar. In the cylindrical bore 3 between it 4 and the collar 12, a damping element is installed in the form of a shock-absorbing 31 to dampen the vibration of the piston ring 4. The hand tool works as follows. During operation, the supporting tool 1 is connected to a source of compressed air and, using the handle 1 9, the operator sets the pressure in the damping chamber to create the calculated required elastic force acting on the piston 4 and bring the piston 4 into an elastic collision through the shock-absorbing ring 31 shoulder 12. The elastic force is chosen to be approximately equal to the normal or optimal force created by the hands of the operator, assumed for this riveting operation. Then, the protruding matrix 15 of the supporting tool 1 is applied to the head 7 of the rivet 32 to be supported, on which the heads are to be planted, over the riveted sheets 33. At the same time, another operator brings and presses a riveting hammer (not shown) with its working end 34 to the end of the rivet 32 intended for the landing of the opposite head. A support force is then applied to the housing 2. In order to press the matrix 15 firmly against the rivet 32, the prototype opposite end presses the working end 34 and sufficient for a small movement of the piston 4 inwards against the elastic force generated by the air cushion in the damping chamber, it is necessary to continuously remove the shock load on the damping ring 31. This prevents the subsequent operation of the riveting hammer impact on the housing 2 vibration during the return of the piston forward after the rebound (recoil). A riveting hammer is then put into action, which strikes the head of the rivet 32 with the working end 34. The shock pulse from each impact is transmitted through the rivet 32 in the form of a shock wave or a stress wave that travels through the die 15 and the piston 4, causing inert damped recoil of the die. and the piston, the reduction and final absorption of the energy of the shock wave by the elastic force of the airbag S of the damping chamber acting as
    a recoil damper and limiting the transmission of harmful vibrations to the housing 2. The size (volume) of the damping chamber is chosen equal to several displacement volumes when the piston 4 is returned during maintenance and sufficient to reduce vibration due to pulsation and pressure to an insignificant level and thereby isolate the housing 2 from unwanted vibration.
    By replacing the matrix 15 (Fig. 1), with a more severe 15 (Fig. 3), it is possible to increase the inertia of the total supporting
    masses, for example, when landing heads of solid duraluminium or titanium rivets, in order to reduce recoil and avoid excessive pressure increase in the air cushion of the damping chamber.
    The proposed tool has improved properties regarding damping of recoil and vibration, and can be easily adapted to changing working conditions, which reduces fatigue and increases convenience when performing long-term maintenance jobs.
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    权利要求:
    Claims (2)
    [1]
    1. TOOL FOR MAINTAINING RIVETS WITH VIBRATION DAMPING, comprising a housing with a handle for applying support force to the tool from the operator’s hands and a through axial cylindrical bore ^ in which a piston with a seal is installed with the possibility of reciprocating movement and formation of a damping between its end surface and the housing chamber, and means for supplying compressed air to a damping chamber mounted in the axial cylindrical bore of the housing, while at the end of the piston, opposite Ohm damping chamber, a matrix is mounted to support rivets, and the axial cylindrical bore of the body is made with a support collar to limit the front movement of the piston, characterized in that, in order to increase the damping effect of the tool vibration, the means for supplying compressed air is made in the form of a adjustable pressure regulator to ensure changes in air pressure in the damping chamber in the range of 1.3 - 2.5 bar, the volume of the damping chamber exceeds the volume of displacement by the piston of the medium during its return stroke, and ezhdu piston and the support shoulder * axial cylindrical bore is mounted a resilient damping member. · "
    [2]
    2. The tool pop. ^ characterized in that the piston is made With a cylindrical head, the length of which is 1.3 to 3 diameters of the piston.
    SU <"> 1131463
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    同族专利:
    公开号 | 公开日
    EP0049230A2|1982-04-07|
    US4380923A|1983-04-26|
    DE3176936D1|1988-12-22|
    JPH0246293B2|1990-10-15|
    BR8106344A|1982-06-22|
    SE8006875L|1982-04-02|
    FI813012L|1982-04-02|
    JPS5788934A|1982-06-03|
    EP0049230A3|1982-06-02|
    CS718781A2|1985-08-15|
    FI66774B|1984-08-31|
    CA1159283A|1983-12-27|
    AU548081B2|1985-11-21|
    AU7579481A|1982-04-08|
    SE424514B|1982-07-26|
    FI66774C|1984-12-10|
    CS242873B2|1986-05-15|
    EP0049230B1|1988-11-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE171067C|
    DE183481C|
    DE138918C|
    DE618834C|1935-09-17|Nomag Norddeutsche Maschinenfa|Compressed air rivet support|
    DE167128C|
    US833878A|1903-09-02|1906-10-23|Elias Gunnell|Holder-on for riveters.|
    US1480464A|1920-10-16|1924-01-08|William A Pungs|Holder-on for riveting machines|
    US1442675A|1922-01-19|1923-01-16|Lembcke Carl|Stationary die for rivet heads|
    US2274091A|1938-04-23|1942-02-24|Douglas Aircraft Co Inc|Bucking tool|
    US2349341A|1942-11-13|1944-05-23|Josef A Disse|Riveting device|
    US2411561A|1944-02-04|1946-11-26|Chicago Pneumatic Tool Co|Bucking bar control for riveting hammers|DE3819397C2|1988-06-07|1990-03-29|Berning & Soehne Gmbh & Co, 5600 Wuppertal, De|
    US5572900A|1994-08-01|1996-11-12|The Deutsch Company|Reduced recoil bucking bar|
    US5588323A|1995-05-22|1996-12-31|U.S. Industrial Tool And Supply|Hand-held rivet bucking tool using energy dissipative polymer|
    US20060117547A1|2004-12-08|2006-06-08|The Boeing Company|Integral clamping-and-bucking apparatus for utilizing a constant force and installing rivet fasteners in a sheet metal joint|
    GB2436311B|2006-03-22|2008-04-09|Textron Fastening Syst Ltd|Improved hydraulic damper valve|
    US8468868B1|2010-07-06|2013-06-25|The Boeing Company|Bucking bar devices and methods of assembling bucking bar devices|
    US9259779B2|2012-01-04|2016-02-16|The Boeing Company|Riveting tool and method with electromagnetic bucking bar normalization|
    US20140157858A1|2012-12-10|2014-06-12|United States Of America As Represented By The Secretary Of The Navy|Recoilless Bucking Bar System|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8006875A|SE424514B|1980-10-01|1980-10-01|VIBRATION DUMP NITMOTHALL TOOLS|
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