CN106573330A - Method and device for producing a shaft-hub welding connection using a welding beam - Google Patents

Method and device for producing a shaft-hub welding connection using a welding beam Download PDF

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Publication number
CN106573330A
CN106573330A CN201480080260.2A CN201480080260A CN106573330A CN 106573330 A CN106573330 A CN 106573330A CN 201480080260 A CN201480080260 A CN 201480080260A CN 106573330 A CN106573330 A CN 106573330A
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CN
China
Prior art keywords
hub
plane
axle
axis
welding
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Granted
Application number
CN201480080260.2A
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Chinese (zh)
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CN106573330B (en
Inventor
米夏埃尔·特奥巴尔德
托比亚斯·耶纳
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Festo SE and Co KG
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Festo SE and Co KG
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Publication of CN106573330A publication Critical patent/CN106573330A/en
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Publication of CN106573330B publication Critical patent/CN106573330B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0046Welding
    • B23K15/0053Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/0823Devices involving rotation of the workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • B23K26/28Seam welding of curved planar seams
    • B23K26/282Seam welding of curved planar seams of tube sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • B23K26/324Bonding taking account of the properties of the material involved involving non-metallic parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1447Pistons; Piston to piston rod assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/02Iron or ferrous alloys
    • B23K2103/04Steel or steel alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/16Composite materials, e.g. fibre reinforced
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/30Organic material
    • B23K2103/42Plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/50Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention relates to a method for producing a welding connection between a shaft (4) and a hub, (6) through which the shaft (4) passes, of a shaft-hub assembly (1). A welding seam (2) which extends about the shaft (4) is produced between the two components (4, 6) by means of a welding beam (26). The welding beam (26) is introduced at an irradiation position (EP) which lies in a quadrant (32) of a Cartesian coordinate system, the x-axis of which coincides with the longitudinal axes (3, 7) of the shaft (4) and the hub (6). The irradiation position (EP) is distanced both from an x-y plane (15) as well as from an x-z plane (16) of the coordinate system. Furthermore, the orientation of the welding beam (26) during the welding process is selected such that the beam direction at the irradiation position (EP) is inclined relative to the x-y plane and/or relative to the x-z plane by an irradiation angle (Wxy, Wxz). The invention further relates to a device for carrying out the method.

Description

For the method and apparatus for using welding beam to generate axle-hub welded connection
Technical field
The present invention relates to it is a kind of for the axle of shaft-hub assembly and the axle through hub generate the side of welded connection Method, wherein, the longitudinal axis of axle and hub define the common x-axis of three Cartesian coordinates, while the longitudinal axis are formed and sat The intersection of the vertical x-y plane of the z-axis for being and the x-z-plane vertical with the y-axis of coordinate system is marked, wherein by means of one from hub The welding beam that axial side enters generates the weld seam extended around axle, the weld seam by hub with axle in the form of material and material are combined Connection.The invention further relates to a kind of equipment for implementing this welding method.
Background technology
The component including axle and the hub being mounted on an axle is all employ in many technical fields.Hub is typically with basic The annular of upper central openings or sleeve main body, the referred to as solid or hollow rod-like body of axle pass through the central openings.In order to save Retaining element is saved, hub and axle are linked together by way of welded connection is combined with material and material.From the meaning of the present invention Say in justice, term " hub " and " axle " should be broadly construed, and not limit in concrete physical embodiments.Axle-hub group The use field of part and application form are not also limited so that in use, and shaft-hub assembly can for example perform linear movement or rotation Transhipment is dynamic.
For shaft-hub assembly, applicant think related one using field be in hydraulic-driven technology, axle- Hub assembly is used as the piston rod-piston component in hydraulic operation working cylinder.For example, 1 503 114 B1 of EP are referred to, which illustrates This application, and which also discloses method and apparatus, its theme are related to the hub that formed by piston and are being formed by piston rod Fixation on axle.
As far as the applicant is aware, axle in shaft-hub assembly and by axle through hub welded connection it is usual in the past Implement into and cause, the mistake that high heat input weld beam (such as laser beam) is transmitted between axle and hub is made by suitable welding equipment Cross in region, and make whole shaft-hub assembly rotation.This is produced and two parts of shaft-hub assembly is combined with material and material The fillet welding that is bonded together of mode.In this process, welding equipment is adjusted so that the beam direction position of welding beam In the plane that the axis diametrically extended across x-axis and relative to x-axis is formed, wherein, welding beam is relative to x-axis with acute angle Incline.Its purpose be fundamentally will welding beam remain with the illumination angle that x-axis is formed it is as little as possible, it is producible to make Weld seam is penetrated in hub in the axial direction as far as possible.However, due to the construction of welding equipment, this regulation is limited System so that illumination angle is generally relatively large.This causes radial transition region of the weld seam between axle and hub, and (which can be described as connecing Close region) in be only penetrated into short distance in hub in the direction of the x axis, and while the relatively large depth in axle of radial penetration.It is first First, during for hub wider in the direction of the x axis, this can negatively affect the intensity of welded connection, and in some feelings Under condition, the undesirable change in the material structure of axle is also resulted in.And, it is to obtain sufficient intensity, it is often necessary to the two of hub Apply weld seam on individual axle side, this extends the time needed for the method, and increases the manufacturing cost of shaft-hub assembly.
The content of the invention
The purpose of the present invention is to take measures, and these measures can simplify shaft-hub assembly while high intensity is ensured Welded connection between hub and axle simultaneously reduces its cost.
To solve this problem, according to the present invention, in preceding method, welding beam is introduced at irradiation position In shaft-hub assembly, a quadrant of the irradiation position in four quadrants limited by y-axis and z-axis of cartesian coordinate system In, and thus separate with x-y plane and with x-z-plane, wherein the orientation that beam is welded during welding process is selected to, So that its beam direction at irradiation position relative to x-y plane and/or relative to x-z-plane irradiating overturning angle.
In addition, combining the equipment for being particularly adapted to implement preceding method solving the problem, it is characterised in that the equipment has There is adjusting means, the adjusting means can be carried out with x-y plane and x-z-plane distance to the irradiation position for welding beam Variable adjustment, and can be relative to x-y plane and/or fixed relative to the angle of x-z-plane at irradiation position to welding beam To carrying out variable adjustment.
Measure of the invention allows to produce the weld seam in the radial engagement region between axle and hub, the weldering Seam extend very remote in the direction of the x axis or or even completely by hub, but still only there is limited footpath relative to axle and hub To penetration depth.Weld the specific arrangements of the irradiation position of beam and incline relative to x-y plane and/or relative to x-z-plane Welding beam beam direction combine, it is allowed to welding termination process is without because stretching out from hub in the axial direction in shaft-hub assembly Axle hinder welding equipment and its orientation.In the ideal case, when weld seam is generated in the engaging zones between axle and hub, weldering Connect beam and engaging zones will be entered with the beam direction parallel with x-axis, set yet with generating and guiding the welding of welding beam Standby size, this is impossible for traditional welding method.Welding equipment will be collided with axle.Arranged by of the invention Apply, welding result can be obtained in the case of the risk of collision between welding equipment and axle, this correspond to or at least very Close to preferable welding result.Irradiation position and at least one illumination angle corresponding selection allows to obtain axially consecutive Weld seam, i.e., extend through the weld seam of whole hub in the direction of the x axis, so as to obtain high bond strength, in addition to implement the weldering Termination process, it is only necessary to weld on side, i.e., only welded from one of two axle sides of hub.This is avoided in welding process The defect of shaft-hub assembly must be repeatedly clamped, and is made by part warpage risk minimization caused by heat effect.Preferably may be used Reduce to single weld seam, it reduce the risk of the structure change of heat input and component materials to be joined, additionally it is possible to avoid giving birth to Into weld seam re-melting problem.In addition, the axial middle section axis and hub that eliminate in hub may not exclusively be welded on one The problem for rising.
The favourable further development of the present invention is described in the dependent claims.
Advantageously, weld beam to be oriented during welding process so that its beam direction at irradiation position is relative Incline in x-y plane and relative to both x-z-planes.Thus, beam direction at irradiation position with relative to x-y plane The first illumination angle, and with the second illumination angle relative to x-z-plane at same irradiation position.Thus, beam direction Both x-y plane had been not parallel to, x-z-plane had also been not parallel to.So, the welding equipment for sending welding beam can most preferably press close to axle Arrange, while still obtain above-mentioned welding result, this be due primarily to irradiation position and x-y plane and additionally with x-z-plane The fact that spaced apart.Irradiation position is the position on shaft-hub assembly, and at the position, welding beam is directed into or is penetrated into In shaft-hub assembly.
The aforementioned tilt angle positions of beam direction advantageously cause welding beam to be oriented to so as to x-y plane and x-z Plane distance increases as the axial distance with hub apart increases.
Favourable probability is also resided in, and by the orthoselection that beam is welded during welding process is so that on the one hand which is penetrated Shu Fangxiang extends at least substantially parallel to (and preferably completely parallel to) x-z-plane, while on the other hand so that in irradiation The certain tilt relative to x-y plane is obtained at position.Thus advantageously, a measure be by irradiation position and x-z-plane apart Distance select to be at least substantially correspond to the radius of axle.By this way, weld beam to irradiate from outer inclination To in shaft-hub assembly parallel to the plane of x-axis in, even in this case beam direction deviate x-axis axial direction.Irradiation position The radius that axle also can be at least slightly offset with x-z-plane distance is put, to ensure really generated weld seam along x-axis side To reliable welded joint is formed in the whole length of hub between hub and axle.
During welding process, the scope of the selected illumination angle relative to x-z-plane preferably between 0 ° to 15 ° It is interior, including the limit value of the scope.
During welding process, advantageously select between 30 ° to 60 ° relative to the illumination angle of x-y plane, Whereby, the limit value of the scope is also included within particular range.
Particularly advantageously, the preferred scope of the illumination angle for being in relative to x-y plane is put down relative to x-z with selected The preferred scope of the illumination angle in face is combined.
The axial direction along x-axis that the irradiation position that welding beam is introduced in shaft-hub assembly is advantageously located at hub is fixed To axial end on.Therefore, in welding process, welding beam is entered in shaft-hub assembly on the end face of hub.
Another advantageous measures are related to Selective irradiation position so that irradiation position is located in the outer perimeter of axle and with hub at a distance of one Section axial distance.In this case, weld beam and enter axle at first, then cooperate with hub again.
Irradiation position is can be located in the radial transition region between axle and hub.However, being considered as it should further be appreciated that irradiating position Put radius of the radial distance relative to x-axis more than axle.
Advantageously, welding equipment is maintained in constant position during welding process, and shaft-hub assembly uniaxially, and have Sharply rotated around x-axis with constant speed.In this manner it is possible to generate in a particularly simple way prolong around x-axis with one heart The continuous circular shape weld seam stretched.
Certainly, measure of the invention makes it possible to incite somebody to action from contrary axial end by two weld seams as before The hub being bearing on axle is welded together with axle.If the axial arrangement length of hub is relatively large, this two-way or bilateral weldering Connect and be particularly suitable.However, particularly with shorter hub, it is advantageous that only generate single weld seam, which is advantageously around the whole of hub Circumference completely penetrates through the hub on the axial direction of hub, so that welded connection is formed between axle and hub.
Weld seam through hub advantageously terminates at two contrary axles of hub with the annular end face concentric with x-axis in the axial direction To in the region of side.As having found, using the method according to the invention, can obtain makes two annular end faces that there is spill to cut The welding result of facial contour, wherein, section is referred in the sectional plane that formed of longitudinal axis across x-axis and relative to x-axis The section of observation.
With respect to the illumination angle of x-y plane, wearing for welding beam can be adjusted as desired by the angle is changed Saturating depth or the depth of weld on the axial direction of x-axis, whereby, the selected illumination angle relative to x-y plane is narrower, then axle It is bigger to the depth of weld.
Weld seam can be affected relative to the curvature in x-axis direction by the change of the illumination angle presented relative to x-z-plane.Institute State that illumination angle is bigger, then weld seam is bigger in the curvature in the plane that x-axis and perpendicular longitudinal axis are formed.
If weld seam terminates at the end face that section is spill, i.e. the end face is of virtually radius, then this causes to be soldered Part between gentle transition, this minimizes the problem of notch effect.
In the production for forming the piston rod-piston component of part of hydraulic working cylinder, the method can be considered as especially having Profit.This hydraulic working cylinder preferably includes the cylinder housing with two end walls, wherein, the piston quilt in piston rod-piston component It is mounted to shift along linear direction in the inside of cylinder housing, and piston rod in axial direction extends and slidably to move Position mode passes through an end wall of cylinder housing to outside.The internal chamber of cylinder housing is divided into Liang Ge work chamber by piston, wherein At least one work chamber can be acted on by pressurized hydraulic fluid so that compression force causes piston rod-work on piston Linear movement of the plug assembly relative to cylinder housing.This working cylinder is highly versatile in use, particularly in automatization's skill There is wide application in art industry.
Welding process is carried out by means of welding beam, and which need not advantageously supply any additional welding material.In the party Face particularly advantageously uses method for laser welding, wherein using laser beam as welding beam.But in principle, the present invention can have All of beam welding method, such as also available electron beam welding method are used sharply.
If the equipment for implementing the welding method has adjusting means, the adjusting means allows to change irradiation position Put and/or one or two illumination angle, then favourable probability is, same welding equipment is used by changing regulation parameter In heteroid piston rod-piston component.Furthermore, it is possible to respectively carry out to each to be welded piston rod-piston component Think optimal regulation.
Description of the drawings
The present invention is explained in greater detail below with reference to the accompanying drawings, in the accompanying drawings:
Fig. 1 is shown by means of root with the longitudinal section of the sectional plane formed along the x-axis across cartesian coordinate system and z-axis According to the shaft-hub assembly of the welding method manufacture of the present invention, wherein weldering is seen in radial transition region that can be between axle and hub The weld seam of connection section,
Fig. 2 show perform welding method during, the side that arrow I is represented in by Fig. 1 looks up, shaft-hub assembly Along the front view of the axial direction of x-axis,
Fig. 3 shows that what is arranged in Fig. 2 that the side represented by arrow III looks up bows during welding method is performed View, and
Fig. 4 show perform welding method during, the shaft-hub assembly that the side that arrow IV is represented in by Fig. 2 looks up Side view.
Specific embodiment
Shaft-hub assembly 1 is figure 1 illustrates, the shaft-hub assembly 1 engages single to form one using welded connection 2 Unit.Shaft-hub assembly 1 includes the axle 4 with longitudinal axis 3, and annular or sleeve hub with longitudinal axis 7 and axial aperture 5 6。
Hub 6 is coaxially coupled to and particularly connector is on axle 4.Thus, perforate 5 of the axle 4 through hub 6.At least set in axle 4 In having the longitudinal sections of hub 6, the external diameter of axle 4 at least substantially corresponds to the internal diameter of hub 6.Hub 6 with slight clearance or can also may be used It is supported on axle 4 in the case where radial direction somewhat is pre-tensioner.Two longitudinal axis 3 and 7 overlap in shaft-hub assembly 1.
At least in the section (hereinafter, referred to as construction section 8) occupied by hub 6, axle 4 preferably has rounded outer profiles, especially Ground is cylindrical radial outer circumferential surface 12.Advantageously, hub 6 has radially inner circumference circle surface 13 in the region of its perforate 5, should Inner perimeter surface 13 is also circular contour, is advantageously cylindrical form.
The region that the outer radial periphery circle surface 12 of axle 4 and the radially inner circumference circle surface 13 of hub 6 are arranged diametrically opposite to each other exists Hereinafter also referred to as engaging zones 14, are connected the welded connection 2 for being formed and are formed in this by the material and material between hub 6 and axle 4 In engaging zones 14.
For example, axle 4 and hub 6 are at least made up of metal in the region of part of welded connection 2 is formed, especially by steel Constitute.However, other materials are also possible, and for example, plastic material or additionally composite.
In order to simplify the explanation of the execution of structure and welding method of the invention to shaft-hub assembly 1, with reference to bag Include the cartesian coordinate system of x-axis, perpendicular y-axis and the z-axis vertical with both x-axis and y-axis.In FIG, x-axis and z-axis are used Dotted line is represented;They are located in drawing.Y-axis travels across the intersection point of x-axis and z-axis, and vertically extends with drawing.
X-axis is overlapped with two longitudinal axis 3,7.Therefore, the two longitudinal axis 3,7 limit three Cartesian coordinates jointly X-axis.X-axis also defines the phase of the x-y plane 15 vertical with the z-axis of coordinate system and the x-z-plane 16 vertical with the y-axis of coordinate system Hand over straight line.X-y plane 15 is formed across x-axis and y-axis, and x-z-plane 16 is formed across x-axis and z-axis.
Fig. 2 to Fig. 4 combines the cloth that the execution of the welding method for generating welded connection 2 shows shaft-hub assembly 1 Put.In whole accompanying drawings, using identical reference number and the corresponding part of letter representation.
In addition to shaft-hub assembly 1, schematically show in Fig. 2 to Fig. 4 and be particularly well-suited to generate welded connection The part of 2 welding equipment 17.Using welding equipment 17, it is possible to implement beam welding method, to generate welded connection 2.
Advantageously, welded connection 2 only includes single weld seam 18, and the weld seam 18 can pass through or pass through welding equipment 17 generate.Advantageously, weld seam 18 is located in engaging zones 14, and formation local material is melted between the material of hub 6 and axle 4 Close.
Weld seam 18 is preferably ring form, and is arranged to concentric with x-axis.Advantageously, weld seam 18 is formed as in x-axis The continuous circular shape weld seam 18 extended in circumferential direction.The weld seam 18 generated with the method is shown in dash-dot lines in fig. 2.
If for welded connection 2 only uses single weld seam 18, such as the situation in exemplary embodiment, be also advantageous that 's.In addition, Fig. 1 shows the Advantageous embodiments of the weld seam 18 extended around x-axis, wherein, whole axle of the weld seam 18 through hub 6 To length, just extend around x-axis.So, hub 6 is welded together with axle 4 on its whole axial length.This generates especially Stable engagement.
Hub 6 has the first axial end 22a in the region of first axle side 22.Hub 6 is contrary with first axle side 22 With axial opposed with the first axial end 22a second end face 23a for orienting in the region of two axle sides 23.The weldering of basic annular Seam 18 has following axial length in the direction of the x axis, and which terminates at two ends of hub 6 with first end face 24 and second end face 25 In the region of face 22a, 23a.First end face 24 is located in the region of the first axle side 22 of hub 6, and the second end face 25 of weld seam 18 It is arranged in the region of the second axle side 23 of hub 6.Two end faces 24,25 of weld seam 18 are ring form, and with x-axis with one heart Orientation.
Welding equipment 17 includes that welding beam generates equipment (not shown), generates equipment by the welding beam, can generate With the welding beam 26 compared with the energy content shown in thick line in Fig. 2 to 4.For example, weld beam generation equipment to be suitable to generate laser Beam so that welding beam 26 is laser beam.However, the present invention can also be realized using following welding equipment 17, the welding equipment 17 can be realized with different types of welding beam 26, such as electron beam.
Welding equipment 17 has welding beam outut device 17a, generates the welding beam 26 that equipment is generated by welding beam Project from the welding beam outut device.In order to implement welding method, welding beam outut device 17a is arranged on into axle-hub group In the region of the neighboring of part 1 so that the irradiation position EP on the outer surface of the welding irradiation shaft-hub assembly 1 of beam 26, and irradiate To in shaft-hub assembly 1.
Advantageously, equipped with adjusting means 17b, the adjusting means can carry out welding beam outut device welding equipment 17 The position of 17a and/or the variable adjustment of orientation, to be variably set irradiation position EP as needed in cartesian coordinate system Position and welding beam 26 orientation.
In order to generate weld seam 18, the irradiation position EP that beam 26 is arranged to irradiate on shaft-hub assembly 1 is welded, while whole Individual shaft-hub assembly 1 is rotated around x-axis.The rotary motion of shaft-hub assembly 1 is represented with 27 by arrow.The rotation of shaft-hub assembly 1 Thus axis is overlapped with x-axis.
Rotary motion 27 is resulted particularly in as unidirectional rotary motion, that is to say, that shaft-hub assembly 1 only exists during welding Rotate on one direction of rotation.Thus welding beam 26 remains and is consistently directed at irradiation position EP, irradiation position EP Position in cartesian coordinate system also keeps constant, and which changes relative to the relative position of shaft-hub assembly 1.So, formed The energy input of welded connection is moved around x-axis in the circumferential direction of x-axis, until ultimately forming annular continuous weld 18. Advantageously, the angular orientation for welding beam 26 keeps constant during welding process and during rotary motion 27.Certainly, in weldering During termination process, i.e., during the rotation of shaft-hub assembly 1, the orientation and irradiation position of welding beam 26 can be adjusted completely The position of EP.
The rotary motion 27 of shaft-hub assembly 1 can be realized by the rotary apparatuss 17c of welding equipment 17.Rotary apparatuss 17c examples Such as include clamping device 28, for being clamped shaft-hub assembly 1 in place during welding process releasably, wherein rotating Driving means (not shown) is associated with clamping device 28, such that it is able to generate rotary motion 27.Preferably, clamping device 28 is clamped Axle 4.
During welding process, welding equipment 17 or welding beam outut device 17a be arranged so that weld beam 26 from One in two axle sides 22 or 23 of hub 6 is projected in shaft-hub assembly 1.For example, beam 26 is welded in the first axle side of hub 6 Shine directly in 22 region in hub 6.
During welding method is performed, welding beam 26 points to shaft-hub assembly 1 so that irradiation position EP positioned at by y-axis and In in four quadrants of the cartesian coordinate system that z-axis is limited.This quadrant of cartesian coordinate system is referred to below as Irradiation quadrant 32.The irradiation quadrant 32 that irradiation position EP is located can be most preferably seen in fig. 2.
The position of irradiation position EP is also chosen to the irradiation position EP irradiated in quadrant 32 and x-y plane 15 and x- Both z-planes 16 are separated.Measure on the axial direction of z-axis with x-y plane distance, and be expressed as in the accompanying drawings Az.Measure on the axial direction of y-axis with x-z-plane distance, and be expressed as Ay in the accompanying drawings.
The concrete spatial orientation of welding beam 26 is also especially related to the execution of welding method.The orientation is selected as making Beam direction of the beam 26 at irradiation position EP must be welded relative to the one illumination angle Wxy of inclination of x-y plane 15, and/or relatively An illumination angle Wxz is inclined in x-z-plane 16.
Preferably, and in the exemplary embodiment ground is realized, the beam direction for welding beam 26 is formed relative to x-y The illumination angle Wxy of the plane 15 and illumination angle Wxz relative to x-z-plane 16, wherein the two illumination angles are each more than zero. Welding beam 26 is thus relative to x-y plane 15 and both incline relative to x-z-plane 16.From the beginning of irradiation position EP, due to Inclined orientation, with the axial distance in irradiation quadrant 32 on the direction of welding beam outut device 17a with hub 6 apart Increase, welding beam 26 increase with x-y plane 15 and with 16 distance of x-z-plane.
In the modification (not shown) for performing welding method, the orientation that beam 26 is welded during welding process is chosen On the one hand to cause its beam direction to extend at least substantially parallel to x-z-plane 16, on the other hand making which in irradiation position EP Place inclines an illumination angle Wxy relative to x-y plane 15.In this case, relative to x-y plane 15 illumination angle Wxy thus More than zero, and zero is at least approximately equal to relative to the illumination angle Wxz of x-z-plane 16.In this respect, if relative to x-z-plane The size that axle radius is at least substantially corresponded to apart from Ay of the irradiation position EP of measurement, then be particularly advantageous.
As having found, in the selected illumination angle Wxz relative to x-z-plane 16 in the range of 0 ° to 15 ° while Relative to x-y plane 15 illumination angle Wxy in the range of 30 ° to 60 ° in the case of, realize particularly advantageous welding result. Selected illumination angle Wxy is less, then weld seam 18 is penetrated deeper in shaft-hub assembly 1 in engaging zones 14 along the x-axis direction. Especially, if the weld seam according to Fig. 1 is being considered in the section that x-axis and z-axis are formed, the change of illumination angle Wxz affects weldering The curvature of seam 18.
It is particularly advantageous that irradiation position EP is set directly on orient along the x-axis direction axial end of hub 6, Such as situation in the exemplary embodiment.In this case, irradiation position EP is located at first that hub 6 is associated with first axle side 22 On axial end 22a.
Irradiation position EP for welding beam 26 is can be directly in the radial transition region between axle 4 and hub 6.
It is considered as particularly advantageously, the irradiation position EP irradiated in quadrant 32 is located at outside the outer radial periphery circle surface of axle 4 One radial distance.This very well illustrates in fig. 2.Fig. 2 also show the application of welding method, wherein irradiation position EP with 16 distance Ay of x-z-plane at least substantially corresponds to the radius of axle 4.Meanwhile, relative to the irradiation of the measurement of x-y plane 15 Position EP's is more than zero apart from Az, but less than the radius of axle 4.
Adjusting means 17b allows to adjustable range as needed and angle parameter.So, exist As a result probability, and the probability various sizes of shaft-hub assembly 1 welded together using same welding equipment 17.
Especially, by the corresponding regulation to welding beam 26, additionally it is possible to the form of weld seam 18 is exerted one's influence so that institute State weld seam and there is in the region of two end face 24,25 concave cross section profile.During this is the exemplary embodiment according to Fig. 1 Situation.This be if when shaft-hub assembly 1 is observed in the sectional plane that x-axis and z-axis are formed visible profile.Weld seam 18 The profile end portion of spill reduces notch stress, therefore ensures that the further increase of the intensity of welded connection 2.
Piston rod-the piston set of the hydraulic working cylinder 33 that the shaft-hub assembly 1 shown in accompanying drawing preferably only schematically shows Part 1a.Thus, axle 4 is formed by piston rod 4a, and hub 6 is formed by the piston 6a of the working cylinder 33.Working cylinder 33 has to be illustrated Property shown in cylinder housing 34, piston rod-piston component 1a it is completing, weld together in the state of by its piston 6a with can Sliding transfer mode is contained in cylinder housing 34, while piston rod 4a is projected from the end of cylinder housing 34, enable to into Action edge is exported.The inner cavity chamber of cylinder housing 34 can be pressurizeed by the hydraulic fluid in malleation, particularly with pressurized with compressed air, To cause piston rod-piston component 1a relative to the linear movement of cylinder housing 34.It should be appreciated that in this case, piston Bar 4a is with the bigger length than presenting in figure.In figure, diagram is only intended to schematically show the structure of shaft-hub assembly 1.Such as Fruit hub 6 is designed to piston 6a, then piston 6a is in most of the cases further equipped with least one sealing member, and piston 6a passes through The sealing member slides against the inner perimeter of cylinder housing 34.
Measure of the invention is not limited to the field of hydraulic working cylinder, and can be and arbitrarily devised shaft-hub assembly It is used in combination.

Claims (16)

1. for the axle of shaft-hub assembly (1) (4) and the axle (4) through hub (6) generate the side of welded connection Method, wherein, the longitudinal axis of the axle (4) and the hub (6) (3, the common x-axis of three Cartesian coordinates 7) is defined, together Shi Suoshu longitudinal axis (3,7) form the x-y plane vertical with the z-axis of the coordinate system and vertical with the y-axis of the coordinate system The intersection of x-z-plane, wherein being generated around described by the welding beam (26) entered from an axle side (22) of the hub (6) The weld seam (18) that axle (4) extends, the weld seam (18) by the hub (6) with the axle (4) in the form of material and material are combined Connection, it is characterised in that welding beam (26) is introduced in the shaft-hub assembly (1) at irradiation position (EP) place, institute Irradiation position (EP) is stated in a quadrant (32) of four quadrants limited by y-axis and z-axis of cartesian coordinate system, and by This is separated with x-y plane and with x-z-plane, wherein the orientation of welding beam (26) is chosen during welding process For so that it is described welding beam (26) the irradiation position (EP) place beam direction relative to x-y plane and/or relative to X-z-plane is inclined with illumination angle (Wxy, Wxz).
2. method according to claim 1, it is characterised in that the orientation of welding beam (26) during welding process It is selected as so that the beam direction for welding beam (26) at the irradiation position (EP) place is relative to x-y plane and phase For x-z-plane is each inclined with illumination angle (Wxy, Wxz).
3. method according to claim 1, it is characterised in that the orientation of welding beam (26) during welding process It is selected to, on the one hand causes the beam direction of welding beam (26) to advance at least substantially parallel to x-z-plane, and On the other hand cause beam direction of welding beam (26) at the irradiation position EP relative to x-y plane with illumination angle (Wxy) incline, wherein at the aspect of amount, the irradiation position (EP) and x-z-plane distance (Ay) at least substantially position In the region of the radius of the axle (4).
4. the method according in claims 1 to 3, it is characterised in that what is selected during welding process is relative In x-z-plane (16) illumination angle (Wxz) in the range of 0 ° to 15 °.
5. the method according in Claims 1-4, it is characterised in that what is selected during welding process is relative In x-y plane (16) illumination angle (Wxy) in the range of 30 ° to 60 °.
6. the method according in claim 1 to 5, it is characterised in that the irradiation position (EP) is positioned at described The axial direction along x-axis of hub (6) towards axial end (22a) on.
7. the method according in claim 1 to 6, it is characterised in that the irradiation position (EP) is positioned at described At a distance of one section of axial distance in the outer perimeter of axle (4) and with the hub (6).
8. the method according in claim 1 to 7, it is characterised in that the irradiation position (EP) is positioned at described In radial transition region between axle (4) and the hub (6).
9. the method according in claim 1 to 7, it is characterised in that the irradiation position (EP) and x-z-plane Distance (Ay) at least substantially corresponds to the radius of the axle (4), and the irradiation position (EP) and x-y plane (15) distance (Az) is more than zero and less than the radius of the axle (4).
10. the method according in claim 1 to 9, it is characterised in that in the generation phase of the weld seam (18) Between, the shaft-hub assembly (1) is around x-axis single direction rotation, and advantageously continuous rotation.
11. methods according in claim 1 to 10, it is characterised in that the weld seam (18) is formed about x The continuous circular shape weld seam (18) that axle is extended concentrically about.
12. methods according in claim 1 to 11, it is characterised in that only generate around the whole of the hub Circumference completely penetrates through the single weld seam (18) of the hub on the axial direction of x-axis, to form the axle (4) with the hub (6) Between welded connection.
13. methods according to claim 12, it is characterised in that the weld seam (18) is with the annular end face concentric with x-axis (24,25) terminate at the hub (6) two axle sides (22, in region 23), wherein, the weld seam (18) the two annular End face (24, each there is concave cross section profile 25).
14. methods according in claim 1 to 13, it is characterised in that the shaft-hub assembly (1) be for Piston rod-the piston component (1a) of hydraulic working cylinder (33), wherein, the axle (4) is by the piston rod-piston component (1a) The piston rod (4a) is formed, and the hub (6) is formed by the piston (6a) of the piston rod-piston component (1a).
15. methods according in claim 1 to 14, it is characterised in that laser beam or electron beam are used as welding Beam (26), to generate the welded connection.
16. are used to implement the equipment of the method according in claim 1 to 15, it is characterised in that the equipment Equipped with adjusting means (17b), the adjusting means can be to the irradiation position (EP) of welding beam (26) and x-y Plane and x-z-plane distance (Az, Ay) carry out variable adjustment, and can be to welding beam (26) in the photograph Position (EP) place is penetrated relative to x-y plane and/or variable adjustment is carried out relative to the angular orientation of x-z-plane.
CN201480080260.2A 2014-10-14 2014-10-14 Method for producing a shaft-hub weld connection using a welding beam Active CN106573330B (en)

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CN114667199A (en) * 2019-11-08 2022-06-24 比马赫国际工程公司 Piston unit of working cylinder

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WO2018145222A1 (en) * 2017-02-09 2018-08-16 GM Global Technology Operations LLC Method for laser welding light metal workpieces that include a surface oxide coating
WO2018227382A1 (en) 2017-06-13 2018-12-20 GM Global Technology Operations LLC Method for laser welding metal workpieces using a combination of weld paths

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