WO2007141947A1 - Mécanisme de support inter-élément, changeur d'outils automatique avec ledit mécanisme, dispositif de transport, et actionneur - Google Patents

Mécanisme de support inter-élément, changeur d'outils automatique avec ledit mécanisme, dispositif de transport, et actionneur Download PDF

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Publication number
WO2007141947A1
WO2007141947A1 PCT/JP2007/055700 JP2007055700W WO2007141947A1 WO 2007141947 A1 WO2007141947 A1 WO 2007141947A1 JP 2007055700 W JP2007055700 W JP 2007055700W WO 2007141947 A1 WO2007141947 A1 WO 2007141947A1
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WO
WIPO (PCT)
Prior art keywords
inter
support mechanism
ball
element support
recess
Prior art date
Application number
PCT/JP2007/055700
Other languages
English (en)
Japanese (ja)
Inventor
Ichiro Kitaura
Original Assignee
Pascal Engineering Corporation
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
Application filed by Pascal Engineering Corporation filed Critical Pascal Engineering Corporation
Publication of WO2007141947A1 publication Critical patent/WO2007141947A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2409—Elements essential to such mechanisms, e.g. screws, nuts one of the threads being replaced by elements specially formed for engaging the screw or nut, e.g. pins, racks, toothed belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/163—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with balls between the co-operating parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/186—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions with reciprocation along the axis of oscillation

Definitions

  • Inter-element support mechanism automatic tool changer equipped with this inter-element support mechanism, transport apparatus, and actuator
  • the present invention relates to an inter-element support mechanism, in particular, an inter-element support mechanism that is provided between machine elements and supports machine elements, an automatic tool changer including the inter-element support mechanism, a transfer device, and an actuator About.
  • a mechanical device such as an ATC (automatic tool changer), a table transport unit, and an actuator is configured by organically coupling a plurality of mechanical elements via an inter-element support mechanism.
  • This inter-element support mechanism is generally provided in one machine element, and makes a mechanical relationship between one machine element and the other machine element by contacting the other machine element. I have it.
  • an inter-element support mechanism for example, a gear mechanism and a cam mechanism are well known.
  • the inter-element support mechanism needs to couple the mechanical elements without causing problems such as friction and backlash generated between the contacting mechanical elements.
  • the inter-element support mechanism is provided on the output shaft, the ball bearing holding hole formed in the output shaft, the ball bearing attached to the ball bearing holding hole, and the ball bearing holding And a presser plate for holding the ball bearing in the hole.
  • Patent Document 1 JP-A-8-159233
  • the ball and the contact surface are brought into good contact with each other to prevent occurrence of defects such as looseness. It is necessary to adjust the diameter of the ball. On the other hand, there is a limit to the types of commercially available ball diameters, and there is a limit to adjusting the ball diameter.
  • the present invention has been made in view of the above-described problems, and the object thereof is to suppress problems such as backlash even when a commercially available ball with a limited type of diameter is used.
  • An inter-element support mechanism is provided, and an automatic tool changer, a transport device, and an actuator including the inter-element support mechanism are provided.
  • An inter-element support mechanism includes a spherical body that is mounted between a first element and a second element, one of which is movable with respect to the other, and that can support the first element. And a pressing means capable of pressing the spherical body.
  • the spherical body is detachably attached to the second element.
  • the recess is formed in the second element and rotatably receives the spherical body, and the second element is detachably provided to expose a part of the spherical body and prevent the spherical body from falling off the recess. And a possible drop-off preventing member.
  • a recess for rotatably receiving the spherical body is formed, a moving member is provided in the second element and is displaceable toward the first element by a pressing force from the pressing means, and the first member
  • the second element is provided on the second element so that the position of the moving member can be adjusted toward the element, and includes a stagger that can lock the moving member and adjust the maximum displacement amount of the moving member.
  • the apparatus further includes a plurality of small spherical bodies provided in the depression, in contact with at least one of the inner surface of the depression and the outer surface of the spherical body and having a smaller diameter than the spherical body.
  • An automatic tool changer according to the present invention includes the inter-element support mechanism.
  • a transport apparatus according to the present invention includes the inter-element support mechanism.
  • the actuator according to the present invention includes the inter-element support mechanism. The invention's effect
  • the inter-element support mechanism according to the present invention can press the ball toward the mechanical element even if the diameter of the ball is not accurately adjusted and a gap is generated between the ball and the mechanical element. Therefore, it is possible to organically connect machine elements that do not cause defects such as looseness. Moreover, the same effect can be obtained also in the tool changer, the transfer device, and the actuator according to the present invention.
  • FIG. 1 is a cross-sectional view of an automatic tool changer according to a first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG.
  • FIG. 3 is a sectional view showing the inter-element support mechanism in detail.
  • FIG. 4 is a cross-sectional view of a hydraulic cylinder according to a second embodiment.
  • FIG. 5 is a cross-sectional view taken along line V—V in FIG.
  • FIG. 6 is a cross-sectional view showing details of an inter-element support mechanism.
  • FIG. 7 is a sectional view showing an actuator according to the third embodiment.
  • FIG. 8 is a cross-sectional view showing a main part of a table transport apparatus according to a fourth embodiment.
  • FIG. 9 is a sectional view taken along line IX-IX shown in FIG.
  • FIG. 10 is a cross-sectional view showing a modification of the table transport apparatus according to the fourth embodiment.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI shown in FIG.
  • FIG. 1 is a cross-sectional view of automatic tool changer 100 according to the first embodiment
  • FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG.
  • the automatic tool changer 100 transmits the driving force of the output shaft force of a motor (drive source) (not shown) to the rotating shaft 5 to transmit the first driving force that rotates the rotating shaft 5.
  • a mechanism 60 and a second driving force transmission mechanism 65 that transmits the driving force from the output shaft to the rotating shaft 5 and drives the rotating shaft 5 in the axial direction are provided.
  • the first driving force transmission mechanism 60 is provided in the casing 1 and is provided in a disc-shaped worm wheel (first mechanical element) 3 fixed to the rotary shaft 12 and rotatably in the casing 1.
  • the worm gear 2 that is provided, the turret (second mechanical element) 50 that is rotatably provided, and the inter-element support mechanism 70 that is provided in the turret 50 and transmits the driving force of the worm wheel 3 to the turret 50 It has.
  • the worm wheel 3 includes a circular side surface, a peripheral surface located between both side surfaces, and a cam groove 45 formed on the peripheral surface.
  • the worm gear 2 is rotated by a drive source such as a motor (not shown), and a gear 2 a that meshes with a gear formed on the peripheral surface of the worm wheel 3 is formed at the tip of the worm gear 2. For this reason, when the worm gear 2 rotates, the worm wheel 3 rotates about the rotation shaft 12.
  • the turret 50 includes a shaft portion 110 extending in a direction intersecting the rotation shaft 12, and a disk portion 112 formed at one end of the shaft portion 110. They are arranged so that they intersect.
  • Both end portions of the shaft portion 110 are rotatably supported by the casing 1, and the central portion of the shaft portion 110 is supported by the support member 143, and it is possible to suppress the occurrence of stagnation in the shaft portion 110. It has been.
  • a gear portion 112 a is formed on the peripheral surface of the disc portion 112.
  • the inter-element support mechanism 70 includes an annular member 120 that defines a plurality of recesses 120a, a moving member 43 that is housed in the recesses 12Oa and that is movably provided toward the worm wheel 3.
  • a ball (spherical body) 42 fitted between the moving member 43 and disposed between the turret 50 and the worm wheel 3, and a hydraulic mechanism (pressing) that can press the ball 42 and the moving member 43 toward the worm wheel 3.
  • Mechanism 71.
  • the hydraulic mechanism 71 can displace the ball 42 toward the worm wheel 3 via the moving member 43. Therefore, smaller than the desired diameter Even if the ball 42 is adopted, the hydraulic mechanism 71 displaces the ball 42 toward the warm wheel 3 via the moving member 43, thereby preventing a gap from being generated between the ball 42 and the cam groove 45. be able to. As a result, the ball 42 slides in the cam groove 45 satisfactorily, occurrence of problems such as play is suppressed, and the rotational movement of the worm wheel 3 can be transmitted to the turret 50 satisfactorily.
  • a plurality of recesses 120a are formed in the circumferential direction at equal intervals, and a moving member 43 is provided in each recess 120a.
  • a hydraulic mechanism 71 includes an oil supply pipe 113 formed in a shaft portion 110, a rotary joint 141 provided at an end of the oil supply pipe 113, and an oil supply pipe via the rotary joint 141. And a pipe 140 connected to 113.
  • one end force of the shaft portion 110 also extends over a portion where the annular member 120 is located. Then, it branches so as to reach each recess 120 a formed in the annular member 120. Therefore, the ball (42) can be displaced toward the worm wheel (3) via the moving member (43) by oil (liquid medium), and the ball (42) can be brought into contact with the inner peripheral surface of the cam groove (45).
  • the force using the hydraulic mechanism 71 is not limited to this.
  • an air pressure or gas pressure mechanism using air or gas (a gaseous medium) as a medium may be used. Good.
  • FIG. 3 is a cross-sectional view showing the inter-element support mechanism 70 in detail.
  • the recess 120a includes a recess 120a2 and an annular recess 120al formed radially outward from the recess 120a2 and having a larger diameter than the recess 120a2.
  • the moving member 43 includes a large-diameter portion 122 that is in sliding contact with the inner peripheral surface of the recess 120a2, and a small-diameter portion 123 that is formed with a smaller diameter than the large-diameter portion 122 and protrudes toward the worm wheel 3. Yes.
  • a recess 44 is formed on the end surface of the small diameter portion 123 on the worm wheel 3 side, and the ball 42 is received.
  • the inner surface of the recess 44 has a gossip arch shape, and is configured by joining together two circular arc surfaces formed with a diameter larger than the diameter rl of the ball 42.
  • the contact portion between the ball 42 and the recess 44 is in line contact, and a gap is formed between the ball 42 and the inner peripheral surface of the recess 44, so that the inner peripheral surface of the ball 42 and the recess 44 is formed. Big between The occurrence of friction can be suppressed.
  • a drop prevention member 41 that prevents the ball 42 from dropping from the depression 44 is provided at the opening edge of the depression 44.
  • the drop-off prevention member 41 includes a C ring 41A1 fitted in an annular groove formed at the opening edge of the recess 44, and an annular protrusion 41A2 provided on the C ring 41A1. .
  • the turret 50 alone can be taken out of the apparatus with the ball 42 mounted, and the diameter of the ball can be adjusted with the turret 50 alone.
  • the length of the large diameter portion 122 in the axial direction is shorter than the depth of the recess 120a2, and the large diameter portion 122 can be displaced in the axial direction within the recess 120a2.
  • An oil supply pipe 113 is connected to the recess 120a2, and an oil supply chamber 120d capable of storing oil (medium) is formed between the inner peripheral surface of the recess 120a2 and the moving member 43. When the oil is supplied into the oil supply chamber 120d, the moving member 43 is pressed toward the worm wheel 3 to be movable.
  • the ball 42 is cammed by retracting the moving member 43 so that the ball 42 and the inner surface of the cam groove 45 come into contact with each other. Can be inserted into the groove 45.
  • the ball 42 can be fitted into the cam groove 45.
  • the gap between the ball 42 and the cam groove 45 can be eliminated, and the driving force from the worm wheel 3 that is free from defects such as play is transmitted to the turret 50. can do.
  • a ring-shaped stopper 121 is provided in the annular recess 120al.
  • the stopper 121 whose inner diameter is smaller than the diameter of the recess 120a2 protrudes from the opening edge of the recess 120a in the inner diameter direction.
  • the small-diameter portion 123 is inserted into a through hole formed in the central portion of the stopper 121, and the large-diameter portion 1 When the upper surface of 22 and the bottom surface of the stopper 121 are in contact with each other, the stopper 121 locks the moving member 43. As a result, the maximum moving distance by which the moving member 43 is displaced toward the worm wheel 3 can be defined.
  • a screw part 121b is formed on the inner peripheral surface of the annular recess 120al, and a screw part 121a that is screwed with the screw part 121b is formed on the peripheral surface of the stopper 121. For this reason, when the stock 121 is rotated, it can be displaced toward the worm wheel 3. Therefore, by rotating the stopper 121, the locking position between the stopper 121 and the moving member 43 can be set, and the maximum displacement amount of the moving member 43 can be adjusted.
  • the rotating shaft 5 is provided with an annular rotating member 150, and a gear corresponding to the gear portion 112 a formed on the turret 50 is formed on the outer peripheral surface of the rotating member 150. Part 150a is formed.
  • a tool changing arm (not shown) for exchanging the tool installed in the tool magazine and the tool mounted on the main shaft.
  • This tool change arm has a substantially rectangular shape, is provided with a tool gripping part capable of gripping a tool and a tool holder at both end sides, and is supported by the rotary shaft 5 at the center part.
  • the second driving force transmission mechanism 65 includes a power transmission member (not shown) that transmits the rotational motion of the worm wheel 3 from the annular recess 17 formed in the rotational shaft 5 to the rotational shaft 5.
  • the This power transmission member is provided on one end side, and is provided on a roller sliding in the annular cam groove 8 shown in FIG. 2 formed on the side surface of the worm wheel 3 and on the other end side. And a roller that slides in the annular recess 17 and a rotation shaft formed in the center.
  • the hydraulic mechanism 71 supplies oil from the oil supply pipe 113 and presses the ball 42 against the cam groove 45 of the worm wheel 3.
  • the turret 50 rotates accurately according to the cam groove 45 of the worm wheel 3, and the rotating shaft 5 also rotates accurately.
  • the position of the tool exchange arm can be accurately controlled, and the tool mounted on the spindle and the tool waiting in the tool magazine can be accurately obtained.
  • the ball 42 rotates in the recess 44 and receives the applied stress, thereby further suppressing the large stress from being applied to the ball 42 itself and the turret 50. can do. This prevents damage to the turret 50 and the like.
  • the rotating shaft 5 is rotated by the first driving force transmission mechanism 60, the tool changing arm is also rotated, and each tool is conveyed. Each tool is precisely aligned with the storage position of the spindle and tool magazine. Thereafter, the rotary shaft 5 is displaced in the axial direction, and a new tool is mounted on the main shaft.
  • inter-element support mechanism 370 and the hydraulic cylinder (actuator) 300 including the inter-element support mechanism 370 according to the second embodiment will be described with reference to FIGS. Note that the same components as those shown in FIGS. 1 to 3 are denoted by the same reference numerals and description thereof is omitted.
  • FIG. 4 is a cross-sectional view of hydraulic cylinder 300 according to the second embodiment.
  • the hydraulic cylinder 300 includes a housing (first mechanical element) 340 formed in a bottomed cylindrical shape.
  • a piston (second mechanical element) 311 provided in the casing 340 and an inter-element support mechanism 370 provided in the casing 340 are provided.
  • the inside of the housing 340 is defined by a piston 311 into an oil supply chamber 303 capable of storing oil and an oil supply chamber 313.
  • Oil supply pipes 304 and 314 are connected to the oil supply chambers 303 and 313, respectively.
  • the piston 311 includes a closing member 302 that divides the housing 340 into an oil supply chamber 303 and an oil supply chamber 313, a cam portion 324 that is connected to the closure member 302 and has a cam groove 305 formed on the surface thereof.
  • An output shaft 301 connected to the cam portion 324 is provided.
  • the inter-element support mechanism 370 is inserted into the cam groove 305 to support the piston 311.
  • FIG. 5 is a cross-sectional view taken along the line VV in FIG. As shown in FIG. 5, a plurality of inter-element support mechanisms 370 are arranged along the circumferential direction of the piston 311.
  • FIG. 6 is a cross-sectional view showing details of the inter-element support mechanism 370.
  • the inter-element support mechanism 370 includes a moving member 307 fitted in a recess 308 formed in the inner peripheral surface of the housing 340, and a recess 321 formed in the moving member 307.
  • the Bonore 309 fitted in the Bonore 309, the Bonore 309 mounted in the Bonore 309, and the hydraulic mechanism 330 are provided.
  • the moving member 307 is slidably provided in the recess 308.
  • the oil supply chamber 325 is defined by the back surface 307a from which the inner surface force of the recess 308 is also separated by the displacement of the moving member 303 and the inner surface of the recess 308.
  • An oil supply pipe 306 provided in the hydraulic mechanism 330 is connected to the oil supply chamber 325. For this reason, when oil is supplied into the oil supply chamber 325, the moving member 307 can advance toward the piston 311 and can be moved backward by removing the oil from the oil supply chamber 325.
  • a plurality of small balls (small spherical bodies) 320 are accommodated between the inner surface of the recess 320 and the outer surface of the ball 309.
  • the diameter of the small ball 320 is smaller than the diameter of the ball 309, and the outer surface of the small ball 320 is in contact with at least one of the inner surface of the ball 309 or the recess 321.
  • the ball 309 is in contact with the small ball 320 at a plurality of positions. Since the small ball 320 rotates in accordance with the movement of the ball 309, the friction generated between the small ball 320 and the ball 309 causes the ball 309 to directly contact the inner surface of the recess 321 and the ball 309 and the recess 3
  • a drop prevention member 312 is provided at the opening edge of the recess 321, and the drop prevention member 312 opens the storage space formed between the ball 309 and the inner peripheral surface of the recess 321. The mouth end is blocked, and the small ball 320 is prevented from falling off.
  • An oil supply chamber 325 is formed between the bottom surface 307a of the moving member 307 and the inner surface of the recess 308.
  • the hydraulic mechanism 330 includes an oil supply pipe 306 connected to the oil supply chamber 325. Yes.
  • oil is supplied from the oil supply pipe 314 into the oil supply chamber 313.
  • the cam groove 305 includes a portion extending along the axial direction and a portion extending in the circumferential direction toward the axial direction. The For this reason, when the ball 309 reaches a portion extending in the circumferential direction, the piston 311 rotates in the circumferential direction while being displaced downward.
  • the moving member 307 can be displaced toward the piston 311. For this reason, even when the diameter of the ball 309 is not set accurately, the ball 309 can be pressed against the cam groove 305 to suppress the occurrence of rattling vibration on the piston 311 and the housing 340. It is possible to reduce friction.
  • the ball 309 can be fitted into the cam groove 305 even if the ball 309 larger than the predetermined diameter is mounted. That is, the inter-element support mechanism 370 according to the second embodiment can obtain the same operations and effects as the element support mechanism according to the first embodiment.
  • the drop-off prevention member 312 can be attached to and detached from the moving member 307 as in the first embodiment.
  • the hydraulic cylinder 300 according to the second embodiment is provided with the inter-element support mechanism 370 on the housing 340 side, but is not limited thereto, and may be provided on the piston side.
  • FIG. 7 is a cross-sectional view showing an actuator 350 according to the third embodiment.
  • the actuator 350 includes a casing 351, an output shaft 352 provided in the casing 351, and a cylindrical body disposed in the casing 351 and disposed around the output shaft 352. 380 and an inter-element support mechanism 370 provided on the output shaft 352.
  • the cylindrical body 380 is formed in a hollow cylindrical shape and has a pair of defined provisions arranged to face each other in the axial direction.
  • Wall portions 361 and 363 and hollow body portions 362 formed on the outer peripheral edge portions of the prescribed wall portions 361 and 363 are provided.
  • the regulation wall portion 363 cooperates with the inner wall surface of the casing 351 to define the fueling chamber 365 in the casing 351, and the regulation wall portion 361 similarly defines the fueling chamber 360.
  • An oil supply pipe 371 is connected to the oil supply chamber 365, and an oil supply pipe 372 is connected to the oil supply chamber 360.
  • a stopper 390 is provided on the inner wall surface of the housing 351.
  • a cam groove 362 extending in the circumferential direction is formed on the inner wall surface of the cylindrical body 380 as it is directed in the axial direction.
  • the output shaft 352 is inserted into the cylindrical body 380, and both end portions are rotatably supported by the housing 351, and the inter-element support provided on the shaft portion 356 located in the cylindrical body 380.
  • Mechanism 370 is provided on the shaft portion 356 located in the cylindrical body 380.
  • the inter-element support mechanism 370 includes an annular member 353 in which a plurality of recesses 308 are formed, a moving member 307 movably provided in the recess 308, and a recess 321 formed on an end surface of the moving member 307. It has a ball 309 mounted inside and a hydraulic mechanism!
  • the hydraulic mechanism includes an oil supply pipe 354 that is formed in the shaft portion 356, the end force of the shaft portion 356 extends to a portion where the annular member 353 is located, and branches toward each recess 321.
  • the ball 309 is engaged with the cam groove 362 and supports the cylindrical body 380.
  • the inter-element support mechanism 370 includes a plurality of small balls between the ball 309 and the recess 321.
  • the ball 309 can be displaced in the radial direction of the cylindrical body 362 by the hydraulic mechanism, the ball 309 can be pressed against the surface of the cam groove 362a. The ball 309 can be slid in the cam groove 362a satisfactorily without causing friction.
  • the inter-element support mechanism according to Embodiment 3 is configured in the same manner as the inter-element support mechanism according to Embodiment 2, the same effect as the above Embodiment 2 'effect Can be obtained.
  • FIG. 8 is a cross-sectional view showing a main part of the table transport apparatus 400 according to the fourth embodiment.
  • the table transport apparatus 400 includes a drive source 401 such as a motor, a rotating shaft 405 in which a cam groove 408 extending in a spiral shape is formed on the outer surface, and the rotating shaft
  • a drive source 401 such as a motor
  • a rotating shaft 405 in which a cam groove 408 extending in a spiral shape is formed on the outer surface
  • the rotating shaft A table support unit 403 that is provided in 405 and supports a table (not shown), and an inter-element support mechanism 370 provided in the table support unit 403 are provided.
  • a driving force transmission mechanism 402 that transmits power from the output shaft to the rotating shaft 405 is provided between the output shaft of the driving source 401 and the rotating shaft 405.
  • the inter-element support mechanism 370 is mounted in a recess 308 formed in the table support portion 403, a moving member 307 movably mounted in the recess 308, and a recess formed in an end surface of the moving member 307. And a hydraulic mechanism that presses the ball 309 through the moving member 307.
  • the hydraulic mechanism includes an oil supply pipe 409 that is formed in the table support portion 403 and supplies oil between the recesses 308 and the moving member 307.
  • FIG. 9 is a cross-sectional view taken along line IX-IX shown in FIG. As shown in FIG. 9, a plurality of inter-element support mechanisms 370 are arranged in the circumferential direction of the rotating shaft 405.
  • the ball 309 is mounted in a recess 321 formed on the end face of the moving member 307, and is held in the recess 321 by a drop prevention member 312.
  • the inter-element support mechanism 370 according to the fourth embodiment is configured in the same manner as the inter-element support mechanism 370 according to the second and third embodiments.
  • the table transport apparatus 400 configured as described above will be described. Power from the output shaft of the drive source 401 is transmitted to the rotating shaft 405 by the driving force transmission mechanism 402, and the rotating shaft 405 rotates.
  • the table can be conveyed accurately, and when the accuracy of position control is not high, the ball 309 by the hydraulic mechanism is weakened to further reduce the distance between the ball 309 and the force groove 408. Friction can be reduced and high-speed conveyance can be achieved.
  • inter-element support mechanism according to Embodiment 4 is configured in the same manner as the inter-element support mechanism according to Embodiments 2 and 3, and thus the elements according to Embodiments 2 and 3 above. The same effect as the inter-support mechanism can be obtained.
  • the force described in the example in which the spiral cam groove 408 is formed on the rotating shaft 405, as shown in FIG. 10 and FIG. It may be a cam groove extending along the axial direction.
  • FIG. 10 is a cross-sectional view showing a modification of the table transport apparatus according to the fourth embodiment
  • FIG. 11 is a cross-sectional view taken along line XI-XI shown in FIG.
  • the table transport apparatus 500 includes a shaft portion 501 in which a cam groove 408 extending linearly in the axial direction is formed, and along the shaft portion 501.
  • a table support member 502 that moves, and an inter-element support mechanism 370 provided between the table support member 502 and the shaft portion 501 are provided.
  • Embodiments 1 to 4 described above examples of application to an automatic tool changer, an actuator, and a transfer device have been described.
  • the present invention is not limited to this, and one of them can move relative to the other.
  • the present invention can be applied to any mechanism that organically connects the mechanical elements.
  • the present invention is an inter-element support mechanism, in particular, an inter-element support mechanism that organically couples mechanical elements, and an automatic tool changer, an actuator, and a transport equipped with the inter-element support mechanism It is suitable for a mechanical device such as a device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Feeding Of Workpieces (AREA)

Abstract

La présente invention concerne un mécanisme de support inter-élément (70) qui comprend un corps sphérique (42) qui est installé entre un premier élément (3) et un second élément (120), dont un est mobile par rapport à l'autre, et qui peut supporter le premier élément (3) ; et un moyen de compression capable de comprimer le corps sphérique (42) vers le premier élément (3).
PCT/JP2007/055700 2006-06-08 2007-03-20 Mécanisme de support inter-élément, changeur d'outils automatique avec ledit mécanisme, dispositif de transport, et actionneur WO2007141947A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006160130A JP2007327597A (ja) 2006-06-08 2006-06-08 要素間支持機構、この要素間支持機構を備えた自動工具交換装置、搬送装置およびアクチュエータ
JP2006-160130 2006-06-08

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WO2007141947A1 true WO2007141947A1 (fr) 2007-12-13

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WO (1) WO2007141947A1 (fr)

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CN105171471A (zh) * 2015-09-30 2015-12-23 河南飞龙(芜湖)汽车零部件有限公司 一种汽车水泵盖夹具的支撑装置
CN106402276A (zh) * 2015-07-30 2017-02-15 吉径科技有限公司 驱动件保持机构与机械装置

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JP5363019B2 (ja) * 2008-03-29 2013-12-11 有限会社メーコー精機 自動工具交換装置
JP5872428B2 (ja) * 2012-09-13 2016-03-01 大久保歯車工業株式会社 自動工具交換装置およびその中間軸ボールホルダ
KR101857272B1 (ko) * 2017-04-26 2018-05-14 덕흥 주식회사 스크류 가공장치의 클램핑 구조

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CN105171471A (zh) * 2015-09-30 2015-12-23 河南飞龙(芜湖)汽车零部件有限公司 一种汽车水泵盖夹具的支撑装置
CN105171471B (zh) * 2015-09-30 2017-05-17 河南飞龙(芜湖)汽车零部件有限公司 一种汽车水泵盖夹具的支撑装置

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