WO1997038821A1 - Machine a usiner comprenant un mecanisme d'inclinaison des dispositifs d'usinage - Google Patents

Machine a usiner comprenant un mecanisme d'inclinaison des dispositifs d'usinage Download PDF

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Publication number
WO1997038821A1
WO1997038821A1 PCT/JP1997/001334 JP9701334W WO9738821A1 WO 1997038821 A1 WO1997038821 A1 WO 1997038821A1 JP 9701334 W JP9701334 W JP 9701334W WO 9738821 A1 WO9738821 A1 WO 9738821A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft member
processing
shaft
processing machine
drive unit
Prior art date
Application number
PCT/JP1997/001334
Other languages
English (en)
Japanese (ja)
Inventor
Kotaro Ono
Hiroshi Narushima
Original Assignee
Washi Kosan Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP13251696A external-priority patent/JPH09285924A/ja
Priority claimed from JP13782396A external-priority patent/JPH09314397A/ja
Priority claimed from JP8156521A external-priority patent/JPH105887A/ja
Application filed by Washi Kosan Co., Ltd. filed Critical Washi Kosan Co., Ltd.
Publication of WO1997038821A1 publication Critical patent/WO1997038821A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/262—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to adjust the distance between the relatively slidable members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/545—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/005—Cantilevered roll stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/10—Making articles shaped as bodies of revolution rings of restricted axial length rims for pneumatic tyres

Definitions

  • the present invention relates to a processing machine for performing processing such as cutting and plastic processing on a workpiece, and particularly to processing means such as a processing tool and a processing roller.
  • the present invention relates to a processing machine provided with a tilt imparting mechanism.
  • the main spindle is inclined at a small angle in the feed direction to improve the surface roughness of face milling and extend the life of the tool. , Or with heel clearance).
  • the conventional spindle healing device has a fixed spindle angle and direction, so it can only perform machining in one direction, and there is a problem in machining efficiency, and milling. There was a problem in precision in performing other processing.
  • a wedge is interposed between the spindle head and the spindle head support member, and a structure that tilts the entire spindle head by moving the wedge is sometimes used.
  • an index plate for ensuring the accuracy of attachment indexing.
  • the main axis of the attachment is tilted by shifting the position (actually, No. 59-171 139), but this operation is also troublesome, and the most necessary The main shaft cannot be inclined.
  • a full-fledged 4- to 5-axis control machining center has reduced accuracy and rigidity compared to a normal 3-axis control machine, and the machine is large and expensive, so it is used only for healing of face milling. It is not common to use.
  • machining center is intended to perform various types of machining, unlike a plano mirror, it cannot be specified for milling.
  • the only way to do this was to use a general 5-axis controller, but this was expensive, had low rigidity, and had a large slope.
  • spinning which is one field of plastic working, is a processing method in which a processing roller is pressed against the outer peripheral surface of a rotating circular material to form the material into a desired shape by ironing.
  • Vehicle wheels made of aluminum alloy have been widely used, and the forming of the rim portion is largely performed by spinning.
  • Vehicle wheels are distinguished by the number of parts, such as one-piece, two-piece, and three-piece, and there are many types of materials such as discs and those whose cross-sections are approximately H-shaped.
  • a mandrel with a rim shape is provided on the rotating shaft, the material is fixed to the mandrel, and the working roller is pressed against the outer periphery of the mandrel while shaping in the mandrel shape, and the material is rocked in the direction parallel to the rotating shaft.
  • It is extended and molded (for example, Japanese Utility Model Laid-Open No. 62-77760).
  • the processing roller oscillates in the direction of the rotation axis while pressing, so that a force is applied to the support shaft of the processing port, so that the force is applied in the direction perpendicular to the support axis of the processing roller as much as possible. It is desirable to work. In particular, in the case of a wheel in which the gradient force changes rapidly from the rim portion to the flange portion of the vehicle wheel, the load on the processing roller is further increased. Therefore, it is preferable to incline the axis of the processing roller in accordance with the working direction. Pressure can be effectively applied to the material.
  • a spinning machine is a large-sized processing machine, and since a lubricant is scattered during processing and there is little extra space around the processing roller, it is desirable to incorporate a simple and highly rigid processing roller inclination mechanism. It is rare.
  • press working which is a field of plastic working, is an extremely efficient processing method for finishing metal into a predetermined shape.
  • Such press machines are available in a wide variety of types to accommodate a wide variety of products, and the form of the machine differs depending on the application.
  • the drive mechanism rotates the screw using the energy stored in the flywheel, such as a crank, nut, or friction press.
  • the press direction or the punching direction can be freely set if high rigidity is considered.
  • Typical press working is punching, bending, and drawing, and requires a large number of die forces corresponding to workpieces.
  • the era of mass production has ended, and high-efficiency stamping and high-efficiency stamping are required. Therefore, in order to reduce the number of molds, a press machine that can accurately and quickly incline the punching direction and the pressing direction is desired.
  • the present invention provides an inclination of an arbitrary direction and an arbitrary angle with respect to a processing tool such as a processing roller or a punch in the processing machine. It is intended to be provided quickly and easily.
  • the present invention relates to a processing machine provided with a tilt imparting mechanism for a processing means, wherein one side in the axial direction of a shaft member for supporting and driving the processing means or a driving portion for the processing means is provided at one point A of its axis.
  • the other end of the shaft member or the driving portion is supported so as to be movable in any direction in which the shaft is inclined and eccentric. It is characterized in that the shaft member or the drive unit is configured to be capable of imparting an inclination.
  • the moving part can be inclined in an arbitrary direction or a predetermined direction, or at an arbitrary angle or a predetermined angle, so that a necessary inclination can be easily imparted to a processing means such as a tool. Therefore, the processing efficiency and the processing accuracy can be improved.
  • any direction and angle can be applied to the spindle of a machine tool, which is one of the processing machines.Therefore, milling with healing in all directions and end milling with tilt compensation are available. Becomes possible and the processing efficiency can be improved.
  • by imparting an inclination to the bearing shaft of the processing roller of the spinning machine it is possible to control so that the pressing force always acts in the direction perpendicular to the bearing shaft, and smooth and efficient spinning can be performed. .
  • press working such as punching, drawing, bending, etc.
  • the punch direction and press direction can be changed by tilting the center of the punch which is the processing means. Can be set arbitrarily, and the shape of the workpiece can be accurately pressed to the corners.
  • the one side of the shaft member or the driving unit is rotatably supported by using a spherical bearing.
  • a required inclination of the shaft member or the drive unit can be allowed as a fixed point at which the point A of the one side axis does not move, and a high strength and high supporting rigidity can be obtained.
  • the bearing structure on the one side of the bracing member or the driving portion may be a spherical sliding bearing structure in which the bracing member or the driving portion is internally supported by a rolling bearing.
  • the shaft member is a main shaft for imparting rotation to a processing means such as a tool
  • the bearing structure on one side is formed by thinning a flange portion connected to a male portion of a spherical bearing and protruding outward.
  • the flange portion is fixed to a part of the spindle head, and the female part of the spherical bearing is divided and formed by a holding member and a part of the spindle head, and the female part and the male part are formed.
  • the pressing member has a structure that allows the flange portion to deform radially in the axial direction. be able to.
  • At least one side of the movable member that is, the other side of the shaft member or the driving portion, is inclined at an eccentric cam by a double eccentric cam mechanism. It can be movably supported in any direction. In this case, a function of converting the amount of rotation of at least two eccentric cams into the amount of movement on the other side is provided.
  • the center of gravity can be moved by the rotation adjustment of the two eccentric cams to the other side by an arbitrary amount in an arbitrary direction, and the inclination of the axis about the point A of the axis on the one side is centered.
  • the angle and the tilt direction can be set easily and arbitrarily.
  • a structure may be employed in which the movement-supporting side, that is, the movement of the other side of the chain member or the drive unit is performed by movement of at least two pairs of opposed wedges. Further, the movement may be performed by at least two pairs of opposing piezoelectric elements, electrostrictive elements, or magnetostrictive elements.
  • the other side can be moved by an arbitrary amount in an arbitrary direction, and the inclination angle and the inclination direction of the axis can be arbitrarily set around the point A of the axis on the one side. Can be set.
  • the movement of the shaft member or the drive unit on the other side may be performed by at least two sets of opposed hydraulic or pneumatic cylinders.
  • the axis A can be set so as to form a predetermined tilt direction and tilt angle around the point A.
  • a structure using at least two sets of opposed eccentric cams can be adopted. Also in this case, the tilt angle and the tilt direction about the point A of the one-side axis can be arbitrarily set by adjusting the rotation of the two sets of eccentric cams.
  • the rigidity of the support structure can be increased, and the attachment for mounting the processing means such as a processing tool can be easily mounted.
  • FIG. 1 is a cross-sectional view of a tilt imparting mechanism portion corresponding to a processing means showing an embodiment in a machine tool as an example of a processing machine.
  • FIG. 2 is an enlarged cross-sectional view of a part a surrounded by a chain line in the previous figure.
  • FIG. 3 is a cross-sectional perspective view showing one male member of the spherical bearing that supports one side.
  • FIG. 4 is a sectional perspective view showing one member on the female side of the spherical bearing.
  • FIG. 5 is a cross-sectional view of an eccentric force mulling portion of a double eccentric force mechanism for determining a moving amount and a direction for imparting a tilt to a processing means.
  • FIG. 6 is a diagram for explaining the amount of eccentricity.
  • FIG. 7 is a diagram for explaining the amount of eccentricity.
  • FIG. 8 is a partial cross-sectional view showing another example of the tilt applying mechanism.
  • FIG. 9 is a partial cross-sectional view showing another example of the tilt applying mechanism.
  • FIG. 10 is a cross-sectional view of a relevant portion showing an example of a tilt imparting mechanism that uses a piezoelectric element to move the processing means for imparting tilt.
  • FIG. 11 is a partial cross-sectional view taken along line L-L of FIG.
  • FIG. 12 is a cross-sectional view of a relevant portion showing an example of a tilt applying mechanism that performs movement for imparting tilt to a processing means using a wedge.
  • FIG. 13 is a cross-sectional view of a relevant portion showing an example of a tilt imparting mechanism that uses a hydraulic cylinder to move the processing means for imparting tilt.
  • FIG. 14 is a cross-sectional view of a corresponding portion showing an example of a tilt applying mechanism that performs movement for imparting an inclination to a processing means using two sets of eccentric cams facing each other.
  • FIG. 15 is a cross-sectional view of a portion of a mechanism for imparting inclination to a processing means showing an embodiment of a spinning machine as an example of a processing machine.
  • FIG. 16 is a partial cross-sectional view showing a state in which the spinning machine of the embodiment is used for spinning a vehicle wheel.
  • FIG. 17 is a cross-sectional view of a tilt imparting mechanism portion with respect to a processing means showing an embodiment in a press machine as an example of the processing machine.
  • FIG. 18 is an enlarged view of a portion b surrounded by a chain line in the previous figure.
  • FIG. 1 shows a tilting mechanism for machining means in a machining center that is equipped with an attachment on the spindle head (or ram, quill, etc.) of a machine tool, which is one of the machining machines, and enables various machining.
  • the example which applied is shown. Note that the overall configuration of the working machine can be the same as the conventional configuration, and a description thereof is omitted here.
  • reference numeral 1 denotes a spindle, which is a shaft member that supports and drives a processing means (not shown) such as a processing tool, and is rotatable with respect to a sleeve 4 by bearings 2 and 3 and a shaft. It is immovably supported in the direction (Z direction in the figure).
  • the rotational force of the main shaft 1 is obtained by the drive shaft 6 via the flexible joint 5.
  • the radius joint 5 and the drive shaft 6 are not required.
  • the sleeve 4 has a flange portion 7 mainly at one end on the mounting side of the processing means so that the attachment 8 can be mounted by a device (not shown).
  • annular pressing member 9 which constitutes a male side part which is a part of a spherical bearing 30 centered on a point A of the axis of the main shaft 1. It has been.
  • the holding member 9 has a thin plate-shaped, radially extending flange portion 10 which extends outward and extends in the center of the outer periphery of the male spherical portion 9a.
  • the outer periphery 11 of the portion 10 is fixedly attached to the end of the spindle head 12 also serving as a housing.
  • the outer peripheral edge 11 is formed to be slightly thicker than its inner portion, and in the above-mentioned fixed state, a gap is provided on both sides of the inner peripheral portion of the outer peripheral edge 11 of the flange portion 10. Has become. As a result, the flange portion 10 of the holding member 9 can be deflected in a plane in the axial direction, whereby the sleeve 4 can be inclined in any direction of the axial center. Rotation about the axis is supported incapable.
  • a part 13 force of a female spherical part which is another part of the spherical bearing 30 is formed on the inner periphery of the end of the spindle head 12.
  • This portion 13 may be formed as a separate member and attached to the spindle head 12.
  • Reference numeral 15 denotes a member on which the other part 14 of the female spherical portion of the spherical bearing 30 is formed. As shown in FIG. 4, the member 15 includes a flange portion 10 of the pressing member 9. A plurality of protrusions 16 are provided on the side opposite to. A plurality of holes 10-1 corresponding to the protrusions 16 of the member 15 are formed in the flange portion 10 of the holding member 9, and the member 15 has the protrusion 16 It is fixed to the spindle head 12 so that it does not interfere with each other while lying down in the hole 10-1.
  • the main shaft 1 is supported so as to be tiltable in an arbitrary direction together with the sleeve 4 around the point A of the shaft center, and the shaft center is aligned with the sleeve 4. It is supported rotatably at the center. Further, by the above-described mechanism, the sleeve 4 obtains high torsional rigidity as well as high supporting rigidity at the spherical bearing 30 and not only cutting by the processing means supported by the main shaft 1 but also mounting the attachment. Heavy cutting and high precision cutting are also possible.
  • An eccentric cam ring 18 is mounted on the other end of the sleeve 4 (an end opposite to the side with the spherical bearing) via a bearing 17.
  • An eccentric cam ring 23 is mounted outside the eccentric cam ring 18 via a bearing 22.
  • the eccentric cam ring 23 is supported on the spindle head 12 by a spherical bearing 27 such as a spherical roller bearing.
  • the eccentric cam rings 18 and 23 are formed with flange portions, respectively, and the flange portions are formed with gears 19 and 24, respectively.
  • the gear 19 has a corresponding gear 20 force
  • the gear 24 has a gear 25 corresponding thereto, and the eccentric cam rings 18 and 23 have these gears 0.2. Each is rotated by 5.
  • the gears 20 and 25 are appropriately driven by a servo motor (not shown) connected via flexible joints 21 and 26, respectively.
  • the portion indicated by reference numeral 26 in the figure does not need to be a radial joint. Note that the gear portion is enlarged and shown in FIG.
  • the eccentric force mulling portion constitutes a double eccentric cam mechanism that supports the other side of the main shaft 1 via the sleeve 4 so as to be movable in any direction in which the axis is inclined and eccentric. That is, the two eccentric cam rings 18 and 23 individually transmit an arbitrary amount of rotation from the servo motor, and thereby the eccentric cam ring 18
  • Point B moves to an arbitrary position by a length controlled and set by the rotation amount. In other words, it has a function of converting the amount of rotation into the amount of movement on the other side, whereby the main shaft 1 is inclined together with the sleeve 4 about the center A of the spherical bearing 30 at the center.
  • FIG. 5 is a cross-sectional view showing an operation state of the eccentric cam mechanism. The point B at a position away from the point A on the shaft center (on the side of the double eccentric cam mechanism) is shown as P1. Each of the eccentric cam rings 18 and 23 has the same eccentricity 5. In FIGS.
  • the center P 2 of the inner diameter of the eccentric cam ring 23 is located at the position 15 on the Y axis, and the center P 3 of the inner diameter of the eccentric cam ring 18 is +5 on the Y axis with respect to P 2. , That is, the origin (center of the outer diameter of the eccentric cam ring 23) P1.
  • FIG. 7 shows a method of positioning the center P 3 of the inner diameter of the eccentric cam ring 18 (that is, the center of the sleeve 4) at an arbitrary position inside a circle having a radius of 25 with respect to P1.
  • Fig. 7 shows that P 3 has reached the position r on the X-axis as a result of turning the eccentric force ring 23 + + in the counterclockwise direction and turning the eccentric force ring 18 16 times in the clockwise direction. .
  • the relationship is shown below.
  • 0 is 0 to 90. If it moves, r moves between 0 and 25. If the two eccentric cam rings are rotated synchronously while maintaining the mutual relationship in this state, P3 can be moved to a position at an arbitrary angle with respect to the X axis.
  • the spindle 1 of the machine tool is moved and adjusted on the side of the point B of the axis by rotation of the double eccentric force mechanism as described above, whereby Point A can be inclined at a predetermined angle and direction with the point A as a fixed point. That is, necessary healing in any direction, for example, healing in milling can be added to the tool fixed to the main spindle 1, and the machining efficiency can be improved. In addition, it is possible to perform a machining operation with high accuracy while correcting the inclination of the tool in the end mill machining.
  • a tilt imparting mechanism can be provided in the main shaft 12 having an external shape almost the same as that of a normal three-axis control machine. Warm with low rigidity and easy backlash due to abrasion
  • FIG. 8 shows another embodiment of the tilt applying mechanism.
  • This example differs from the example in Fig. 1 in that the sleeve 4-1 is not subjected to a large load in the rotating direction, and a small amount of gear is allowed.
  • the end of the spindle head 1 2 which is the fixed side has a female part of the spherical bearing 30-1 on the inner circumference and the outer circumference of the sleeve 4-11.
  • the female part of the spherical bearing 30-1 is formed directly.
  • the rotation of the sleeve 4-1 around the axial center is performed by inserting the pin 32 from the fixed side into the concave portion 31 provided on the male side portion of the spherical bearing 30-1 on the outer periphery of the sleeve. You can stop it.
  • the point A of the axis of the main shaft 1 is directly supported by a spherical bearing 30-2 such as a spherical roller bearing.
  • the outer ring part can be fitted and fixed to the sleeve 4-2.
  • the support structure on the side that movably supports uses the double eccentric cam ring, that is, the double eccentric cam mechanism, to move the point B side to give an inclination to the sleeve.
  • the double eccentric cam ring that is, the double eccentric cam mechanism
  • a total of four piezoelectric elements 35, 35-1, and 35 are used, each of which is opposed to each other in both the orthogonal X and Y directions.
  • -2, 3 5-3 In this case, the paired piezoelectric elements 35 and 35-2 and 35-1 and 35-5-3 are set so that when one side is expanded, the other side is moved in a contracting direction.
  • Reference numeral 36 denotes a linear bearing, which allows movement of another pair of piezoelectric elements 35-1 and 35-3, and the member 37 forms a part of the linear bearing 36.
  • the cylindrical surface 38 allows the sleeve 43 to be tilted.
  • Such a configuration is similarly used in the portions of the linear bearings 36-1, 36-2, and 36-13. It is also possible to move the sleeve 413 by using two adjacent piezoelectric elements 35 and 35-1, and 355-2 and 35-3 instead of two opposing piezoelectric elements. it can. In this case, the extension of the two piezoelectric elements
  • the main spindle 1 that is, the machining means such as a tool fixed to the main spindle 1 can be arbitrarily set.
  • a slope can be provided. The same applies when an electrostrictive element or a magnetostrictive element is used.
  • FIG. 12 shows still another embodiment of the tilt applying mechanism.
  • the side (point B side) that is movably supported to incline the sleeve is moved by two wedges, each of which is opposed to each other in both the orthogonal X and Y directions, for a total of four wedges. is there.
  • the wedge 41 and the wedge 49 have mutually opposite gradients, are connected to the drive units 43, 44, and 45, and are connected to the servo motor (not shown) via the ball screw 46.
  • the wedges 41, 49 are supported by linear bearings 47, 48, 47-1, and 48_1, respectively, so that they can move lightly.
  • 4-3 is a sleeve
  • 42 and 50 are wedges paired with the wedges 41 and 49
  • 51 and 52 are a part of the spindle head 12 also serving as a housing.
  • the drive units 43, 44, and 45 move in the direction of arrow F due to the rotation of the ball screw
  • the wedges 41 and 49 move together in the same direction. Move in the direction (arrow G direction).
  • the movement in the Y-axis direction is performed in the same manner as described above.
  • the movement amount is not limited to the two wedges placed at the positions where the wedges are opposed to each other as described above, and the amount of movement can be determined using a pair of adjacent wedges. Also in the embodiments described below, the drive mechanism is not limited to being provided at an opposing position.
  • FIG. 13 shows an example of a tilt applying mechanism in which the piezoelectric element 35 of the embodiment shown in FIG. 10 is replaced by a hydraulic cylinder 55, and shows a pair of hydraulic cylinders in the X-axis direction.
  • 56, 57, 56-1, 57-1 are pistons.
  • the amount of movement for the inclination of the sleeve 4-3 is not arbitrary, and it is 3 positions in the X-axis direction (+ ⁇ 5, 0, - ⁇ ) and 3 positions in the ⁇ -axis direction (+ ⁇ 5, 0,- ⁇ ).
  • FIG. 13 if pressure oil is introduced into the cylinder oil holes 58 and 58-1 on both sides, the sleeves 4-1-3 are kept at the zero position.
  • the pressure oil in the oil hole 59 of one cylinder is introduced and the pressure oil passing through the oil hole 58-1 of the opposite cylinder is removed, the sleeve 41
  • Replacement form (Rule 26) 3 moves in the direction of ((). If pressure oil is introduced into the oil hole 5 9-1 of the opposing cylinder and all the oil in oil holes 5 8 and 5 9 is turned off, the cylinder will move in the +5 direction. Accordingly, in this embodiment, the sleeve 413 is also provided with an inclination so that the main spindle 1 and the machining means can be arbitrarily inclined.
  • the sleeve 4-4 can be moved by using a single eccentric cam instead of the double eccentric cam mechanism.
  • the procedure is similar to the above-mentioned example using a piezoelectric element.
  • Force ⁇ the amount of movement of the sleeve 4-4 can be set arbitrarily. That is, in FIG. 14, the outer race member 60 of the eccentric cam is connected to the linear bearing 36 sliding in contact with the sleeve 4-4 via the cylindrical surface 38 (see FIG. 11) which forms a part of the linear bearing. And the needle bearing 61 and the eccentric cam ring 62 are incorporated therein.
  • An eccentric drive shaft 63 is formed integrally with the eccentric cam ring 62, and the shaft is supported by a sleeve 4-4 using a rotary bearing and driven by a servomotor. At least two eccentric cam mechanisms are provided, one in each of the X and Y directions. If the amount of eccentricity is ⁇ 5, the amount of movement of the sleeve 4-4 can be moved by 0 to 5 in any direction.
  • the movably supporting side of the sleeve 4-1.4-2, 4-3, 4-14 is moved in a direction eccentric from the original axis.
  • the main shaft 1 held therein can be tilted and eccentric, and an arbitrary inclination can be given to the processing means.
  • FIG. 15 is a cross-sectional view showing a part of a tilting mechanism of a bearing roller of a processing roller.
  • FIG. 16 is an arrangement state of a processing roller 100 and a tilting mechanism K1 which are processing means in a spinning machine. It shows.
  • the processing roller 100 is fixed to the processing roller mounting base 112 via the inclination imparting mechanism K1.
  • the processing roller mounting base 1 1 2 has a port inserted through the roller head 1 1 3
  • the wheel body 103 is made of a forged body and has a columnar shape with a substantially H-shaped cross section.
  • the disk part 104 and the rim body 105 that are integrally formed , Consists of.
  • the wheel body 103 is sandwiched between mandrels 106 and 107, and is fixed to the driving rod part 108 and the driven shaft part 109, respectively.
  • the drive shaft portion 108 By rotating the drive shaft portion 108, the wheel body 103 rotates, and the inner and outer rims 110 and 110 rotate by rotating in the axial direction while pressing the processing roller 100. 1 is molded.
  • only one processing roller 100 is shown in the figure, usually three processing rollers and drive units having different cross-sectional shapes are provided to reduce the spinning processing time.
  • the inclination imparting mechanism K1 for the processing roller will be described.
  • a processing roller 100 as a processing means is fixed and supported on a support shaft 101 as a shaft member.
  • One end of the bearing shaft 101 (the end on the mounting side of the processing roller) is supported by a cylindrical sleeve 1 16 with a bearing 1 17 and a sleeve 1 16 is at the center of the shaft.
  • It is supported by the housing 119 so as to be freely rotatable by a spherical bearing 130 around the center point A, that is, tiltable in any direction.
  • This point is basically the same as that in the embodiment of the working machine described above, in which one side (the side of the point A of the axis) of the sleeve 4 is tiltably supported by the spherical bearing 30.
  • a pin 13 is provided from the fixed side to the recess 13 1 provided on the male side of the spherical bearing 130 on the outer periphery of the sleeve.
  • the other end of the bearing shaft 101 is supported by a sleeve 116 with a bearing 120, and an eccentric cam ring 121, 122 is provided on the outer peripheral surface of the sleeve 116. It has a double configuration, and its outer peripheral surface is supported by a housing 119 via a spherical bearing 133 such as a spherical roller bearing.
  • the eccentric cam rings 122 and 122 are supported by bearings 123 and 1223-1 so that they can rotate individually.
  • the gears 12 6 and 12 7 are appropriately driven by servo motors 12 9-a and 12 9-b via flexible joints 12 28-a and 128-b, respectively. Therefore, since the eccentric cam rings 1 2 1 and 1 2 2 individually transmit an arbitrary amount of rotation from the servomotor, the point B of the shaft center is a length that is numerically controlled from the original center position to the arbitrary position. Move a minute.
  • the point A of the shaft center is located at the center of the spherical bearing 130, and the bearing shaft 101 of the processing roller is inclined and eccentric about the point A.
  • the structure for movably supporting the side (the side of the axis B at the point B) by the double eccentric cam mechanism and its tilting operation are the same as those in the first embodiment of the machine tool described above. is there. A detailed description of the operating state is omitted.
  • Force As with the sleeve 4 holding the spindle 1 in the machine tool described above, the point B of the shaft center is appropriately moved and adjusted by a double eccentric force mechanism. Thereby, the internal bearing shaft 101 can be inclined at a predetermined angle and direction via the sleeve 116. Therefore, it is possible to quickly incline the working direction of the processing roller as the processing means by numerical control, and the rigidity is increased by adding a sleeve to the bearing shaft of the processing roller.
  • the spinning machine when used to carry out spinning processing, for example, in the production process of a wheel made of light alloy, when the pressing force of the spinning roller is applied along the shape of the wheel, it is always perpendicular to the bearing shaft. Since it can be controlled so that the pressing force acts in the direction, smooth and efficient spinning can be performed.
  • FIGS. 9 and 10 to 14 show the same. It can be implemented by adopting the bearing structure of point A described above and the bearing structure of movably supporting point B side.
  • FIGS. 17 and 18 show a third embodiment in which a press machine as an example of the processing machine of the present invention is equipped with a tilt imparting mechanism K2 for the processing means.
  • reference numeral 202 denotes a sleeve that also serves as a housing, and the rigidity of the drive unit 201 is increased by incorporating the entire drive unit 201. 2 0 3
  • the tilt imparting mechanism K2 for the punch driven by the driving unit 201 will be described.
  • one end of the cylinder 204 (the side to which the punch is attached) is rotated by a spherical bearing 230 centered on the axis with respect to the sleeve 202 as a housing. That is, the spherical bearing 230 is supported so as to be tiltable in an arbitrary direction about the point A of the axis which is the center of the spherical bearing 230.
  • the male spherical surface of the spherical bearing 230 is formed directly on the outer circumference of the cylinder 204
  • the female spherical surface of the spherical bearing 230 is formed directly on the inner circumference of the end of the sleeve 202.
  • the spherical bearing may be formed of another member.
  • the spherical bearing 30 or 130 allows the point A side of the core to move in an arbitrary direction. This is basically the same as the point that can be tilted.
  • the pin 2 32 is inserted from the fixed side into the concave portion 2 31 provided on the male side of the spherical bearing 230 on the outer periphery of the cylinder. The point that the rotation of 204 can be restricted is the same as that of the spinning machine.
  • a punch holder 217 at the tip of the piston 203 is provided with a chuck or the like for mounting a punch as a processing means, but the details are omitted because it is the same as the conventional configuration.
  • the other side of the cylinder 204 is supported on a sleeve 202 by eccentric force mullings 208 and 209 constituting a double eccentric cam mechanism and a spherical bearing 210 such as a spherical roller bearing.
  • the center of the spherical support 210 was set as point B. To clarify these parts, the part enclosed by the broken line is enlarged and shown in Figure 18.
  • the eccentric cam rings 208 and 209 are rotatably supported independently of each other by 21 bearings 211 and 211-1, and the eccentric cam rings 208 and 209
  • Gears 2 12 and 2 13 are provided on the flange portion, and are rotated by gears 2 14 and 2 15 which mesh with them.
  • the gears 2 14 and 2 15 are appropriately driven by flexible servos 2 16 a and 2 16 b by servo motors (not shown), so that the eccentric cam rings 208 and 209 respectively
  • the point A of the shaft center is located at the center point of the spherical bearing 230, and the cylinder 204 constituting the driving portion 201 is inclined around the point A together with the piston 203.
  • the structure in which the movably supported side (the side of the axis B at the point B) is supported by the double eccentric cam mechanism and its tilting operation are the same as those in the first embodiment of the machine tool described above. Is the same.
  • the double eccentric cam mechanism appropriately moves and adjusts the side of the point B of the eccentric, By inclining the cylinder 204 corresponding to the sleeve 4, the punch driving direction and the pressing direction by the piston 203 can be inclined.
  • the punch driving direction can be varied and the shape of the corner of the workpiece can be accurately pressed, so that the punch shape is simple. It can be used as a press, and contributes to the reduction in the number of press dies. If the light alloy wheel disc surface or the like constituting the design surface has a complicated shape and the holes provided on the disc surface are tapered, the direction of the punch is arbitrary. There is an advantage that the processing can be facilitated by setting to.
  • a tool such as a cutting tool in a machine tool, a processing roller such as a spinning machine, or a working shaft such as a punch in a press machine, a main shaft or a supporting shaft for supporting these.
  • a machine tool or a spinning machine or a press machine By inclining the shaft member or the drive portion to the machining means, it is possible to easily and quickly impart an inclination in an arbitrary direction and at an arbitrary angle, so that a machine tool or a spinning machine or a press machine can be used.
  • various types of processing machines that perform cutting and plastic processing it is possible to perform processing on the workpiece in the angular direction corresponding to the shape of the workpiece, thereby contributing to an improvement in processing efficiency and an improvement in processing accuracy.
  • it can contribute to the reduction of the type of processing means and the type of processing machine, and it has high structural rigidity and high safety despite having the structure of the inclination imparting mechanism. Therefore, its utility is extremely large.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

Cette invention concerne une machine à usiner, telle qu'une machine-outil, une machine à filer, une machine de type presse, entre autres, qui permet d'effectuer des découpes, l'usinage de matières plastiques, etc. L'efficacité et la précision d'usinage peuvent être améliorées en inclinant la partie entraînement d'éléments arbres, tel que des arbres de support ou des broches principales servant à supporter et à entraîner des dispositifs d'usinage comme des outils. Cette inclinaison permet d'orienter les dispositifs d'usinage de la manière voulue, et de les incliner facilement selon un angle donné. Cette machine à usiner assure, par effet de bascule et dans une direction axiale, le support de l'un des côtés d'un élément arbre supportant lui-même un dispositif d'usinage, ou de la partie entraînement de ce dispositif, un point situé sur l'axe étant considéré comme le centre. La machine à usiner va également supporter de manière mobile l'autre côté de l'élément arbre ou de la partie entraînement, ceci selon une direction voulue dans laquelle l'axe est incliné et se retrouve en position excentrée. La machine à usiner va enfin incliner le dispositif d'usinage en inclinant l'élément arbre, ou la partie entraînement, par le réglage de son mouvement. L'un des côtés est supporté en rotation à l'aide d'un palier sphérique. L'autre côté est en revanche supporté de manière mobile à l'aide d'un mécanisme à double came excentrique, de deux paires de cales disposées face à face, d'un dispositif piézo-électrique, d'un dispositif électrostrictif et, enfin, d'un vérin hydraulique ou pneumatique, ou analogue, ce qui permet d'effectuer l'inclinaison facilement et en douceur par le réglage de son mouvement.
PCT/JP1997/001334 1996-04-17 1997-04-17 Machine a usiner comprenant un mecanisme d'inclinaison des dispositifs d'usinage WO1997038821A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8/132516 1996-04-17
JP13251696A JPH09285924A (ja) 1996-04-17 1996-04-17 工作機械の主軸傾斜装置
JP13782396A JPH09314397A (ja) 1996-05-31 1996-05-31 パンチ駆動機構を傾斜させるプレス機械
JP8/137823 1996-05-31
JP8/156521 1996-06-18
JP8156521A JPH105887A (ja) 1996-06-18 1996-06-18 加工ローラを傾斜させるスピニング機

Publications (1)

Publication Number Publication Date
WO1997038821A1 true WO1997038821A1 (fr) 1997-10-23

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PCT/JP1997/001334 WO1997038821A1 (fr) 1996-04-17 1997-04-17 Machine a usiner comprenant un mecanisme d'inclinaison des dispositifs d'usinage

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WO (1) WO1997038821A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000037213A2 (fr) * 1998-12-22 2000-06-29 Schwäbische Werkzeugmaschinen GmbH Machine-outil equipee d'une dispositif piezo-electrique de correction de position
CN101823110A (zh) * 2010-04-20 2010-09-08 武汉理工大学 双辊摆辗机
CN105057252A (zh) * 2015-08-14 2015-11-18 方倩 一种建筑钢结构件用清洗维护装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62255061A (ja) * 1986-04-30 1987-11-06 Mitsubishi Electric Corp 揺動研磨装置
JPS63232959A (ja) * 1987-03-19 1988-09-28 Canon Inc 非球面形状を有した加工物の加工装置
JPH0547347B2 (fr) * 1986-01-20 1993-07-16 Seiko Seiki Kk
JPH0885020A (ja) * 1994-09-13 1996-04-02 Unisia Jecs Corp ばり取り装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547347B2 (fr) * 1986-01-20 1993-07-16 Seiko Seiki Kk
JPS62255061A (ja) * 1986-04-30 1987-11-06 Mitsubishi Electric Corp 揺動研磨装置
JPS63232959A (ja) * 1987-03-19 1988-09-28 Canon Inc 非球面形状を有した加工物の加工装置
JPH0885020A (ja) * 1994-09-13 1996-04-02 Unisia Jecs Corp ばり取り装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000037213A2 (fr) * 1998-12-22 2000-06-29 Schwäbische Werkzeugmaschinen GmbH Machine-outil equipee d'une dispositif piezo-electrique de correction de position
WO2000037213A3 (fr) * 1998-12-22 2000-10-26 Schwaebische Werkzeugmaschinen Machine-outil equipee d'une dispositif piezo-electrique de correction de position
CN101823110A (zh) * 2010-04-20 2010-09-08 武汉理工大学 双辊摆辗机
CN101823110B (zh) * 2010-04-20 2012-01-11 武汉理工大学 双辊摆辗机
CN105057252A (zh) * 2015-08-14 2015-11-18 方倩 一种建筑钢结构件用清洗维护装置

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