WO2015141502A1 - Presse - Google Patents

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Publication number
WO2015141502A1
WO2015141502A1 PCT/JP2015/056751 JP2015056751W WO2015141502A1 WO 2015141502 A1 WO2015141502 A1 WO 2015141502A1 JP 2015056751 W JP2015056751 W JP 2015056751W WO 2015141502 A1 WO2015141502 A1 WO 2015141502A1
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WO
WIPO (PCT)
Prior art keywords
press machine
speed reducer
slide
connecting member
servo motor
Prior art date
Application number
PCT/JP2015/056751
Other languages
English (en)
Japanese (ja)
Inventor
西田　憲二
Original Assignee
コマツ産機株式会社
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 コマツ産機株式会社 filed Critical コマツ産機株式会社
Publication of WO2015141502A1 publication Critical patent/WO2015141502A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/28—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height

Definitions

  • the present invention relates to a press machine.
  • the press machine processes a workpiece between a lower die provided on a bolster and an upper die provided on a slide that is driven to move up and down.
  • the slide is connected to a motor that is a power source, and a speed reducer and an eccentric mechanism are provided between the motor and the slide.
  • a press machine there is known an underdrive type press machine in which a motor, a speed reducer, and an eccentric mechanism are arranged at the lower part of the press machine in order to reduce the height of the entire machine.
  • the upper ends of rods are connected to the left and right sides of the slide, and these rods are connected to an eccentric mechanism, a reducer, and a servo motor, respectively, and the eccentric mechanism, the reducer, and the servo motor are connected to a bed.
  • Patent Document 1 arranged in the above.
  • a support base for supporting the lower mold is provided on the frame, slides are arranged above the support base, both sides of the slide are supported by guide posts, and the lower parts of these guide posts are arranged in the frame.
  • Patent Document 2 is connected to an under beam and is moved up and down by a drive motor and a screw shaft arranged inside the frame.
  • Patent Document 3 there is a conventional example (Patent Document 3) in which one connecting rod is connected to each of the left and right sides of the slide, and an electric motor is connected to each connecting rod via a gear mechanism. Furthermore, a tension rod is provided on each of the guides provided on the left and right sides of the frame so as to be movable up and down, the upper end of the tension rod is connected to the slide, and the lower end of the tension rod is connected to the eccentric shaft via a motion conversion mechanism.
  • Patent Document 4 There is a conventional example (Patent Document 4).
  • An object of the present invention is to provide a press machine that can suppress the manufacturing cost and does not require a wide installation place even if it is a large-scale device using a speed reducer or an eccentric mechanism.
  • the press machine of the present invention includes a bed having left and right bed legs and disposed in a pit, a bolster provided directly on the bed or indirectly through a carrier and having a lower mold disposed on an upper surface, the lower mold, A slide in which an opposing upper mold is disposed on the lower surface and can be moved up and down, an upright having a slide position restricting portion that is provided at each of the four corners of the bed and restricts horizontal movement of the slide, and the upright A top frame fixed to the upper portion of the slide, a servo motor for driving the slide up and down, a pull rod having a plurality of pairs connected to the left and right sides of the slide, and a lower end of the pair of pull rods connected to each other.
  • Comprising an eccentric mechanism, the said connecting member, said reduction gear, the eccentric mechanism and the servo motor is characterized in that provided respectively on the left and right of the bed leg.
  • the output shaft of the servo motor is arranged along the vertical direction.
  • the left and right bed legs are provided with connecting member position restricting plates for restricting movement of the connecting member in the horizontal direction.
  • the lower end portion of the pull rod is connected to the connecting member directly or via an interposed member.
  • a block having a female threaded portion at the upper end is pivotally supported by the connecting member, and a male threaded portion formed at the lower end of the pull rod is screwed to the female threaded portion of the block.
  • the eccentric mechanism includes a main shaft connected to the speed reducer and a connecting rod connected to the main shaft, and an upper portion of the connecting rod and the connecting member are connected.
  • the speed reducer includes a case, and the case is attached to outer surfaces of the left and right bed legs.
  • the speed reducer includes an inconstant speed reducer and a constant speed reducer
  • the case includes a first case that houses the inconstant speed reducer and is attached to the left and right bed legs.
  • a second case that is attached to the first case and accommodates the constant speed reducer, wherein the second case is provided with the servo motor.
  • the connecting member has an insertion space through which the connecting rod is inserted.
  • the left and right bed legs are provided with oil pans for storing lubricating oil for lubricating the eccentric mechanism, respectively.
  • the connecting member when the servo motor is operated, the rotation of the servo motor is transmitted to the eccentric mechanism via the speed reducer, and the connecting member is moved up and down by the eccentric mechanism.
  • the connecting member When the connecting member is moved up and down, the slide is moved up and down through a pull rod in which a plurality of connecting members are connected to the left and right of the connecting member as a pair.
  • the slide descends toward the bolster and rises from the bolster while the horizontal movement is restricted by the slide position restricting portion of the upright. Since the upper die is arranged on the slide and the lower die is arranged on the bolster, when the workpiece is set between the upper die and the lower die, the workpiece is pressed as the slide moves up and down. .
  • the bed is arranged in the pit.
  • the left and right of a plurality of pull rods are connected as a pair to one connecting member, and an eccentric mechanism, a speed reducer, and a servo motor are connected to the left and right connecting members, respectively.
  • a connecting member, a speed reducer, an eccentric mechanism, and a servo motor are provided on the left and right bed legs, respectively. Therefore, a plurality of pull rods on the left and right can be moved up and down by one connecting member, and the connecting member, speed reducer, eccentric mechanism and servo motor are provided on the left and right bed legs. You don't need a wide space to do.
  • the speed reducer, the eccentric mechanism, and the servo motor since it is not necessary to dispose the speed reducer, the eccentric mechanism, and the servo motor in accordance with the number of pull rods, the number of parts of the press machine can be reduced and the manufacturing cost can be suppressed.
  • the output shaft of the servo motor is arranged vertically, it is not necessary to have a wide space for installing the servo motor.
  • the connecting member position restricting plates are provided on the left and right bed legs, the connecting member can be moved up and down accurately without shifting to the left or right. Therefore, since the slide connected to the connecting member via the pull rod is also lifted and lowered accurately, the press accuracy can be prevented from being lowered.
  • the lower end portion of the pull rod is configured to be pivotally supported by the connecting member, and when a large load is applied to the pull rod, the pull rod rotates relative to the connecting member.
  • the pull rod can be prevented from being damaged.
  • the block is rotatably supported by the connecting member, and the male screw portion formed at the lower end portion of the pull rod is screwed into the female screw portion of the block, whereby the lower end portion of the pull rod is pivoted to the connecting member.
  • the supporting structure can be simplified.
  • the up-and-down movement of the connecting rod can be reliably transmitted to the connecting member.
  • the speed reducer can be compactly provided on the bed by attaching the speed reducer case to the outer surfaces of the left and right bed legs.
  • the first case storing the inconstant speed reducer is attached to the bed leg
  • the second case storing the constant speed reducer is attached to the first case
  • the servo motor is provided in the second case.
  • the inconstant speed reducer, the constant speed reducer, and the servo motor can be provided in a compact bed. Furthermore, since the inconstant speed reducer and the constant speed reducer are housed in separate cases, the configuration of the reducer in the case is simplified and maintenance is facilitated.
  • the connecting rod is inserted into the insertion space of the connecting member, so that space can be saved compared to the case where the connecting rod is disposed outside the connecting member, and the press machine can be reduced in size. Can do.
  • the oil pans are provided on the left and right bed legs, respectively, so that the eccentric mechanisms respectively provided on the left and right bed legs can be reliably lubricated.
  • ruptured a part of press machine concerning one Embodiment of this invention.
  • the top view which shows the lower part of a press machine.
  • the schematic perspective view which shows the relationship between a servomotor, a reduction gear, an eccentric mechanism, and a connection member.
  • the side view which shows a die cushion.
  • the top view which shows the upper part of a press machine.
  • FIG. 1 and 2 show the overall configuration of the press machine according to the present embodiment.
  • the left side indicates the position on the left side of the press
  • the right side indicates the position on the right side of the press.
  • FIG. 2 the left side shows the position on the front side of the press
  • the right side shows the position on the back side of the press.
  • the press machine includes a bed 1 arranged in the pit P, a bolster 2 provided on the bed 1, an upright 3 erected at the four corners of the bed 1, and a top fixed to the upper part of the upright 3.
  • the press machine of this embodiment can be applied to a single press, a transfer press, and other press devices. Moreover, the press machine of this embodiment is applicable also as one press apparatus which comprises a tandem press line.
  • the bed 1 includes a bed leg 1L disposed on the left with respect to the front surface, a bed leg 1R disposed on the right, and a center bed 1C disposed between the bed legs 1L and 1R.
  • a bolster 2 is installed on the upper surface of the bed 1 via a carrier 2B, and a lower mold 2A is arranged on the upper surface of the bolster 2.
  • An upper mold 5A is disposed on the lower surface of the slide 5 so as to face the lower mold 2A.
  • the bolster 2 may be disposed directly on the upper surface of the bed 1.
  • a die cushion 10 is provided on the center bed 1C.
  • the pit P is a substantially rectangular parallelepiped when it is a single pit.
  • a substantially rectangular parallelepiped projecting portion P1 is provided from the front wall and the rear wall of the pit P, and the upper surface of the projecting portion P1 is lowered with respect to the ground surface G (see FIG. 2).
  • the left and right bed legs 1L, 1R extend in the front-rear direction, are placed on the overhanging portion P1 of the pit P, and are fixed to the overhanging portion P1 with anchor bolts (not shown).
  • the left and right dimensions of the overhanging part P1 are set with a predetermined margin in the width of the left and right bed legs 1L and 1R.
  • a maintenance space before and after the center bed 1C is secured, and a pit installation location such as an oil tank (not shown) is secured.
  • Pit construction is costly and requires flooring around the press machine, so the pit dimensions are usually kept to a minimum.
  • the left and right bed legs 1L and 1R must support the total weight of the press machine in consideration of the generated acceleration. Therefore, the strength of the structure of the bed legs 1L and 1R must be increased, and the interval between the projecting portions P1 of the front and rear pits P must be reduced.
  • the top frame 4 does not incorporate a slide drive mechanism, and is provided with two balance cylinders 40 that balance the slide 5. Therefore, the balance cylinder 40 and the upper mold 5 ⁇ / b> A can be deeply inserted into the top frame 4.
  • the top frame 4 has a plate portion 4 ⁇ / b> A that covers the balance cylinder 40.
  • the top frame 4 has a function of preventing the uprights 3 from falling by being fixed to the upper surfaces of the four uprights 3.
  • the slide 5 is provided with a recess 50 that is open upward to prevent interference with the balance cylinder 40. That is, the recess 50 is a space for the balance cylinder 40 to enter at the position where the slide 5 indicated by the reference numeral 5T in FIG.
  • the balance cylinder 40 includes a cylinder 40A, a piston 40B housed in the cylinder 40A so as to be movable up and down, and a connecting rod 40C having an upper end connected to the piston 40B and a lower end connected to the middle plate 50A of the recess 50. .
  • the lower end portion of the connecting rod 40C has a locking portion 40D that locks with the middle plate portion 50A.
  • FIG. 3 shows the lower plane of the press machine. 1 to 3, the elevating mechanism 7 includes a servo motor 70, a connecting member 71 to which the lower end portion of the pull rod 6 is connected, a speed reducer 72 connected to the servo motor 70, and a speed reducer 72 connected to the speed reducer 72. And an eccentric mechanism 73 that raises and lowers the member 71.
  • the servo motor 70, the connecting member 71, the speed reducer 72, and the eccentric mechanism 73 are disposed on the left bed leg 1L and the right bed leg 1R, respectively.
  • the left and right bed legs 1L and 1R are provided with connecting member position restricting plates 74 that vertically restrict the movement of the connecting member 71 in the horizontal direction.
  • connecting member position restricting plates 74 are arranged so as to surround the central portion of the connecting member 71.
  • the eccentric mechanism 73 is only shown on the left side in FIGS.
  • the left and right bed legs 1L, 1R are provided with oil pans 73A for storing lubricating oil (not shown) for lubricating the eccentric mechanism 73, respectively.
  • the pull rod 6 has two pairs arranged on the left and right sides in the front and rear directions, and the lower ends thereof are connected to the connecting member 71.
  • the connecting member 71 includes two side surface plate portions 710 arranged at a predetermined interval, an upper surface plate portion 711 that joins the side surface plate portions 710 to each other, and a plurality of ribs 712A and 712B.
  • An insertion space 71A opened downward is formed between the inner surfaces of the two side plate portions 710 and the two ribs 712A facing each other between the inner surfaces.
  • Blocks 75 as intervening members are rotatably supported by pins 76 at both ends of the two side plate portions 710, respectively.
  • a female screw portion 75 ⁇ / b> A is formed at the upper end portion of the block 75.
  • a male screw portion 6 ⁇ / b> A that engages with the female screw portion 75 ⁇ / b> A is formed at the lower end of the pull rod 6.
  • the pull rod 6 may be directly connected to the connecting member 71 by devising the shape of the lower end portion of the pull rod 6.
  • the eccentric mechanism 73 includes a main shaft 77 connected to the speed reducer 72, a connecting rod 78 connected to the main shaft 77, and a connecting pin 79 that connects the upper end of the connecting rod 78 to the lower portion of the connecting member 71. .
  • the upper part of the connecting rod 78 is accommodated in the insertion space 71A. Further, a reinforcing rib 712B is also provided in the insertion space 71A into which the upper portion of the connecting rod 78 enters.
  • a connection member In general, in the case of a servo press, since the motion setting of a slide is free, it is expected to be applied to many dies, but in order to apply it, a certain amount of slide stroke must be secured. That leads to allowing the connecting rod to grow. On the other hand, it is necessary to reduce the pit size. In order to satisfy both conditions, a connection member was used.
  • FIG. 4 shows the relationship among the servo motor, the speed reducer, the eccentric mechanism, and the connecting member.
  • speed reducers 72 arranged on the left and right are an inconstant speed reducer 72 ⁇ / b> A connected to an eccentric mechanism 73, and a constant speed reducer 72 ⁇ / b> B connected to an inconstant speed reducer 72 ⁇ / b> A, respectively.
  • the unequal speed reducer 72A is a speed reducer that rotates at a predetermined unequal speed on the output shaft even when the input shaft rotates at a constant speed. For example, a Whitworth speed reducer is well known.
  • the constant speed reducer 72B is a speed reducer that rotates the output shaft at a constant speed when the input shaft rotates at a constant speed.
  • the non-uniform speed reducer 72A is housed in a first case 721, and the first case 721 is attached to the outer surfaces of the bed legs 1L and 1R.
  • Two constant speed reducers 72B are provided for one non-constant speed reducer 72A. These constant speed reducers 72B are housed in second cases 722, respectively. These second cases 722 are attached to the first case 721.
  • the first case 721 and the second case 722 are formed with windows not shown.
  • Each second case 722 is provided with one servo motor 70 with the output shaft 70A up and down. That is, the two servo motors 70 and the two constant speed reducers 72B are connected to one non-constant speed reducer 72A and one eccentric mechanism 73.
  • the die cushion 10 generates a die cushion load on the slide 5, and includes a cushion pad 11, a shock absorber 12, a support portion 13, and a die cushion drive mechanism 14.
  • the cushion pad 11 is a member that receives a force from the slide 5, and is provided so as to be movable in the vertical direction in the center bed 1C.
  • the shock absorber 12 is a device that reduces the impact between the cushion pad 11 and the support portion 13.
  • the support portion 13 is a portion that supports the cushion pad 11.
  • the die cushion drive mechanism 14 raises and lowers the support portion 13, and includes a pulley 15, a die cushion servomotor 16, and a belt 17 that transmits the rotation of the die cushion servomotor 16 to the pulley 15.
  • the pressing force transmitted from the slide 5 to the predetermined part of the lower mold 2A through the upper mold 5A is transmitted to the upper surface of the cushion pad 11 through the plurality of cushion pins 2C.
  • the bolster 2 is formed with a plurality of through holes (not shown) for cushion pins.
  • FIG. 6 shows the upper part of the press machine.
  • the upright 3 includes a planar T-shaped column main body 31 that faces the side corners of the slide 5, and a slide position restricting unit that is disposed between the column main body 31 and the side corners of the slide 5. 32.
  • the slide position restricting portion 32 restricts the movement of the slide 5 in the horizontal direction, and is arranged extending vertically in the inner corner portion of the column main body 31.
  • reference numeral 320 denotes a slide frame.
  • the adjusting device 8 includes an adjusting unit 81 provided between the pull rod 6 and the slide 5, and an adjusting driving unit 82 that drives the adjusting unit 81.
  • the adjustment drive unit 82 includes an adjustment motor 83 fixed to the middle plate portion 50 ⁇ / b> A of the slide 5, and a transmission mechanism 84 connected to the adjustment motor 83.
  • the adjusting motor 83 is composed of a servo motor, and its output shaft 83A is arranged to extend horizontally.
  • the transmission mechanism 84 includes a first transmission mechanism 85 coupled to the adjustment motor 83, a vertical shaft 86 coupled to the first transmission mechanism 85, and a second transmission mechanism 87 coupled to the vertical shaft 86.
  • the first transmission mechanism 85 includes a coupling mechanism 851 having an output shaft 850 coupled to the adjustment motor 83 and extending left and right, a rotating shaft 853 coupled to the output shaft 850 via a joint portion 852, and a rotating shaft 853. And a connecting mechanism 854 that connects the lower end of the vertical shaft 86.
  • An end portion of the rotation shaft 853 is inserted through a window portion 50B formed on the side wall of the slide 5, and the coupling mechanism 854 is supported on the left and right outer surface sides of the slide 5 by a mounting portion (not shown).
  • the vertical shaft 86 is disposed at an intermediate position between the paired pull rods 6.
  • the second transmission mechanism 87 includes a coupling mechanism 871 coupled to the upper end portion of the vertical shaft 86, and a rotating shaft 872 disposed at one end of the coupling mechanism 871 and extending horizontally.
  • the adjusting portion 81 includes a male screw 6B formed at the upper end portion of the pull rod 6, a female screw portion 810 screwed to the male screw 6B, and a worm wheel 811 provided on the outer peripheral portion of the female screw portion 810. And a worm 812 meshed with the worm wheel 811.
  • the female screw portion 810 includes a screw portion main body 810A and a flange portion 810B integrally joined to the lower end of the screw portion main body 810A.
  • the worm wheel 811 is fixed to the screw portion main body 810A using a key or the like (not shown).
  • the holder 813 includes a holder main body 813A in which an internal space for housing the worm wheel 811 is formed, and a locking piece portion 813B formed in a ring shape at the lower end of the holder main body 813A.
  • the inner periphery thereof is separated from the outer periphery of the screw portion main body 810A by a predetermined distance.
  • the slide 5 is provided with an overload protection device 9 that prevents overload applied to the pull rod 6.
  • the overload protection device 9 includes a first cylindrical body 91 fixed to the slide 5, a second cylindrical body 92 fixed to the pull rod 6, and a first cylindrical body 91 and a second cylindrical body 92. And a relief valve 93 communicated with an oil chamber 90 provided therebetween.
  • the first cylindrical body 91 has a disc portion 911 having an opening 910 formed at the center thereof, and a cylindrical portion 912 provided on the outer peripheral edge of the disc portion 911.
  • a retaining ring 94 that prevents the second tubular body 92 from coming off is provided on the inner peripheral portion of the tubular portion 912.
  • a holder 813 is fixed to the first cylindrical body 91.
  • the second cylindrical body 92 has a cylindrical portion 921 and a flange 922 formed integrally with the upper end portion of the cylindrical portion 912, and the inner peripheral surface of the second cylindrical body 92 is the outer peripheral surface of the pull rod 6. And are slidably connected.
  • a wear plate 814 is provided on the upper surface of the flange 922. The wear plate 814 and the flange portion 810B of the male screw portion 810 are slidable.
  • the oil chamber 90 includes a space 90 ⁇ / b> A between the flange 922 and the disk portion 911, and an oil communication path 90 ⁇ / b> B that is communicated with the space 90 ⁇ / b> A and formed in the first cylindrical body 91.
  • the oil communication passage 90B communicates with a relief valve 93, and the relief valve 93 communicates with an oil tank (not shown). Therefore, when an overload occurs between the slide 5 and the pull rod 6, the hydraulic pressure of the oil closed in the oil chamber 90 increases. When the hydraulic pressure exceeds a predetermined set value, the relief valve 93 is opened, and the oil in the oil chamber 90 returns to the oil tank. When the relief valve 93 is opened, a control device (not shown) stops raising and lowering the pull rod 6.
  • the slide 5 Since the slide 5 is restricted from moving in the horizontal direction by the slide position restricting portion 32 of the upright 3, the slide 5 is accurately raised and lowered toward the bolster 2. As the slide 5 moves up and down, the workpiece is pressed. The left and right sides of the slide 5 are moved up and down by connecting members 71 via two pull rods 6, and the connecting members 71, the inconstant speed reducer 72 ⁇ / b> A, the constant speed reducer 72 ⁇ / b> B, the eccentric mechanism 73 and the servo motor 70 are moved to the left and right bed legs. Since it is provided in 1L and 1R, a large space for installing these devices is not required.
  • the number of parts of the press machine can be reduced and the manufacturing cost can be suppressed. become.
  • the servo motor 70 is stopped and the adjusting device 8 is operated in order to install dies having different die heights according to the workpiece to be processed.
  • the adjustment motor 83 is operated, the worm 812 of the adjustment unit 81 is rotated via the transmission mechanism 84.
  • the worm 812 rotates, the female screw portion 810 rotates together with the worm wheel 811 that meshes with the worm 812.
  • the rotation of the female screw portion 810 causes the male screw 6B and the female screw portion 810 to move up and down relatively.
  • the flange portion 810B of the female screw portion 810 is sandwiched between the wear plate 814 and the holder 813, when the female screw portion 810 moves up and down, the slide 5 also moves up and down, and the height of the slide 5 relative to the pull rod 6 is adjusted.
  • the adjustment portion 81 of the adjusting device 8 is provided between the slide 5 and the upper end portion of the pull rod 6, adjustment of the height position of the slide 5 can be realized with a simple configuration. And compared with the case where the adjustment part 81 is arrange
  • the adjustment motor 83 is stopped. As a result, the pull rod 6 does not move with respect to the slide 5, so that press working can be resumed. Since the worm 812 and the worm wheel 811 are used for the transmission mechanism 84 of the adjusting device 8, self-locking is applied. Therefore, it is not necessary to increase the size of the braking device that stops the rotation of the output shaft of the adjusting motor 83.
  • the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
  • the two servo motors 70 and the constant speed reducer 72B are used for the connecting members 71 arranged on the left and right, respectively, but in the present invention, the servo motor 70 and the constant speed reducer are used.
  • the number of 72B is not limited.
  • one servo motor 70 and one constant speed reducer 72 ⁇ / b> B may be connected to one of the left and right connecting members 71.
  • the upstream side has a higher pressing capability than the downstream side, and therefore the structure of the right and left lifting mechanisms may be changed in accordance with the pressing capability.
  • one servo motor 70 and one constant speed reducer 72 ⁇ / b> B may be connected to both the left and right connecting members 71, respectively. That is, the number of servo motors 70 can be changed according to the press capability.
  • the number of pull rods 6 arranged in the front-rear direction of one connecting member 71 is not limited to two, and may be three or more. Furthermore, in the present invention, it is not always necessary to provide the adjusting device 8 or the connecting member position restricting plate 74. Even when the adjusting device 8 is provided, a belt driving mechanism may be employed as the adjusting driving unit 82. Further, the output shaft 70A of the servo motor 70 may be arranged along the horizontal direction. Furthermore, the structure which accommodates the inconstant speed reducer 72A and the constant speed reducer 72B in one case may be sufficient. In the press machine of the present invention having the above configuration, the structure above the ground is considerably simplified, so that the center of gravity is lowered. Furthermore, when the transfer press is configured in combination with a linear feeder that does not require a feed box, the center of gravity is further lowered and vibration is suppressed.
  • the present invention can be used for single press, transfer press, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Selon l'invention, un moule inférieur (2A) est disposé sur la surface supérieure d'un maître moule (2), et un moule supérieur (5A) est disposé sur la surface inférieure d'une coulisse (5). La gauche et la droite de la coulisse (5) sont déplacées verticalement par des éléments de liaison (71) par l'intermédiaire d'une pluralité de tiges de traction (6) sur chacune de la gauche et de la droite de la coulisse (5). Les éléments de liaison (71), des dispositifs de réduction de vitesse inconstante (72), des dispositifs de réduction de vitesse constante (72), des mécanismes de décentrage (73) et des servomoteurs (70) sont disposés dans chacun des pieds de lit gauche et droit (1G, 1D).
PCT/JP2015/056751 2014-03-17 2015-03-06 Presse WO2015141502A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-053264 2014-03-17
JP2014053264A JP6296845B2 (ja) 2014-03-17 2014-03-17 プレス機械

Publications (1)

Publication Number Publication Date
WO2015141502A1 true WO2015141502A1 (fr) 2015-09-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108000919A (zh) * 2018-01-22 2018-05-08 东莞领益精密制造科技有限公司 台式小型电动冲床

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6564442B2 (ja) 2017-11-07 2019-08-21 ファナック株式会社 プレス装置
CN116586501B (zh) 2023-07-14 2023-10-17 驰逸自动化科技(苏州)有限公司 一种合金冲压装置

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