JPH0721285U - Hydraulic press machine - Google Patents

Abstract

(57) [Summary] [Object] The present invention aims to prevent the hydraulic hose from moving in the horizontal direction when the cylinder head moves in the horizontal direction. A mold head 13 provided with a mold 11 and a cylinder head 49 provided with a hydraulic cylinder 47 for moving the mold 11 up and down with respect to the mold head 13 are horizontally movable in a frame 5. Provided, this hydraulic cylinder 4
7, the base of the T-type joint 69 is connected, and hydraulic sleeves 77 are provided at one end and the other end of the T-type joint 69, respectively. It is characterized in that it is movable in the horizontal direction relative to 69, and one hydraulic sleeve 77 is connected to a hydraulic pressure source via a hydraulic hose 83.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a die moving hydraulic press machine that moves a die horizontally or vertically to move and position the die relative to a work and presses the work by the action of hydraulic pressure.

[0002]

[Prior art]

 Explaining the mold moving type hydraulic press machine, the frame is provided with a mold head having a mold and a cylinder head having a hydraulic cylinder for moving the mold up and down, for example, so as to be movable in the horizontal direction. . The hydraulic cylinder is connected to a hydraulic source via a bendable deformable hydraulic hose.

With the above configuration, the mold head is moved in the horizontal direction to move and position the mold in the horizontal direction relative to the work. Further, the hydraulic cylinder is moved and positioned to a position corresponding to the mold by moving the cylinder head in the horizontal direction corresponding to the movement of the mold head. Then, the work is pressed as desired by lowering the mold by operating the hydraulic cylinder.

[0004]

[Problems to be solved by the device]

 However, in a conventional die moving hydraulic press machine, the cylinder head and hydraulic cylinder move horizontally in response to the horizontal movement of the die, so the hydraulic hose is also bent and deformed appropriately. Moving. Therefore, the hydraulic hose becomes longer depending on the amount of movement, resulting in higher cost and more space for the hydraulic hose. Further, even though the hydraulic hose can be bent and deformed, there is a risk of oil leakage due to damage such as breakage of the hydraulic hose.

Therefore, an object of the present invention is to provide a hydraulic press machine that can solve the above problems.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems, in the present invention, as a first means, a mold head provided with a mold on a frame, and the mold is raised and lowered with respect to the mold head. Cylinder heads equipped with hydraulic cylinders are provided so as to be movable in the horizontal direction, the base of a T-type joint is connected to this hydraulic cylinder, and hydraulic sleeves are provided at one end and the other end of this T-type joint, respectively. Each of the frames is configured to be immovable in the horizontal direction and movable in the horizontal direction with respect to the T-shaped joint, and one hydraulic sleeve is connected to a hydraulic pressure source via a hydraulic hose. Note that the mold head and the cylinder head may be integrally provided.

As a second means, a mold head having a mold on a frame and a cylinder head having a hydraulic cylinder for moving the mold in the vertical direction relative to the mold head are moved in the vertical direction. If possible, the base of the T-joint is connected to this hydraulic cylinder, and hydraulic sleeves are provided at one end and the other end of this T-joint, respectively. It is configured to be movable in the vertical direction with respect to the die joint, and one of the hydraulic sleeves is connected to a hydraulic source via a hydraulic hose.

[0008]

[Action]

 In the first means, the mold head is moved in the horizontal direction to move and position the mold to a predetermined horizontal position. In addition, the cylinder head is moved in the horizontal direction so that the hydraulic cylinder and the mold face vertically (vertically). At this time, the T-shaped joint moves horizontally with respect to the frame, while the hydraulic sleeve does not move horizontally with respect to the frame. Therefore, the hydraulic hose does not move in the horizontal direction, and the combined volume of the hydraulic sleeve and the T-shaped joint is almost constant. Then, by supplying from the hydraulic source to the hydraulic cylinder through the hydraulic hose and the hydraulic sleeve, the hydraulic cylinder is activated and the mold is lowered (moved vertically downward), and a pair of vertically opposed (vertical) metal molds are operated. Perform desired press working on the work located between the molds.

In the second means, the mold head is moved in the vertical direction to move and position the mold to a predetermined position in the vertical direction. In addition, the cylinder head is moved in the vertical direction so that the hydraulic cylinder and the mold face horizontally. At this time, the T-shaped joint moves vertically with respect to the frame, while the hydraulic sleeve does not move vertically with respect to the frame. Therefore, the hydraulic hose never moves in the vertical direction, and the combined volume of the hydraulic sleeve and the T-shaped joint is almost constant. Then, by supplying the oil from the hydraulic pressure source to the hydraulic cylinder via the hydraulic hose and the hydraulic sleeve, the hydraulic cylinder is operated to move the mold horizontally, and a pair of horizontally opposed molds are moved. A desired press working is performed on the work located between the molds.

[0010]

【Example】

 The invention according to the present embodiment will be described below with reference to the drawings.

Referring to FIG. 3, the main body frame 3 of the hydraulic press machine 1 according to the present embodiment is provided with an upper frame 5 and a lower frame 7 which are vertically opposed to each other, and is configured in a bridge type.

The upper frame 5 is provided with an upper guide rail 9 extending in the left-right direction (left-right direction in FIG. 3), and the upper guide rail 9 guides an upper mold head 13 having an upper mold 11. It is provided so as to be movable in the left-right direction via a nut 15. The upper mold 11 can be moved up and down, and can be attached to and detached from the upper mold head 13 according to the type of press working such as punching and molding.

In order to move the upper mold head 13 in the left-right direction, an upper ball screw 19 connected to a mold head servomotor 17 and extending in the left-right direction is rotated in the upper frame 5 via a bearing 21. The upper mold head 13 is integrally provided with a nut member 23 screwed to the upper ball screw 19.

Similarly, the lower frame 7 is provided with a lower guide rail 25 extending in the left-right direction, and the lower guide rail 25 is provided with a lower mold head 29 having a lower mold 27 and a guide nut 31. It is provided so as to be movable in the left-right direction via the. The lower die 27 cooperates with the upper die 11 to press the work W, and is attachable to and detachable from the lower die head 29.

In order to move the lower mold head 29 in the left-right direction, a lower ball screw 33 extending in the left-right direction is rotatably provided in the lower frame 7 via a bearing 35. A nut member 37 screwed to the lower ball screw 33 is integrally provided. Then, in order to rotate the upper ball screw 19 and the lower ball screw 33 in synchronization, the upper ball screw 19 and the lower ball screw 33 are interlockingly connected via the pulleys 39, 41 and the timing lever 43.

Referring to FIGS. 1, 2, and 3, the upper frame 5 is provided with an upper guide member 45 extending in the left-right direction, and the upper mold 11 is moved up and down on the upper guide member 45. An upper cylinder head 49 having an upper hydraulic cylinder 47 is provided via a guide nut 51 so as to be movable in the left-right direction. The piston 53 of the upper hydraulic cylinder 47 is integrally provided with a ram 55 for pressing the upper mold 11. In order to move the upper cylinder head 49 in the left-right direction, the upper frame 5 is connected to a cylinder head servomotor (not shown) and extends in the left-right direction (left-right direction in FIGS. 1, 2, and 3). A screw 57 is rotatably provided, and the upper cylinder head 49 is provided with a nut member 59 screwed to the upper ball screw 57.

Similarly, the lower frame 7 is provided with a lower guide member 61 extending in the left-right direction, and this lower guide 61 is provided with a lower hydraulic cylinder 63 for raising and lowering the lower mold 27. 65 is provided so as to be movable in the left-right direction. Then, the lower cylinder head 65 can be simultaneously moved to the left and right by the upper metal head 49 by the action of the lower ball screw (not shown) and the nut member (not shown) interlockingly connected to the upper ball screw 57. .

The hydraulic circuit device 67 for operating the upper hydraulic cylinder 47 will be described with reference to FIGS. 1 and 2. The upper hydraulic cylinder 47 includes an upper hydraulic chamber and a lower hydraulic chamber in the vertical direction. A base portion 69a of a T-shaped joint 69 is connected to the hydraulic chamber, and a movable hydraulic sleeve 71 is supported at one end 69b and the other end 69c of the T-shaped joint 69 so as to be movable in the left-right direction. . In order to prevent each movable sleeve 71 from separating from the T-type joint 69, a separation preventing flange 73 is integrally provided at one end of each movable sleeve 71. An O-ring 75 is interposed on the flange 73 of the movable hydraulic sleeve 71 and 69c. The T-joint 69 is supported by a guide member 76 provided on the upper frame 5 so as to be movable in the left-right direction.

A fixed hydraulic sleeve 77 is movably supported in the left and right directions on the other end side of each movable hydraulic sleeve 71. To prevent the fixed hydraulic sleeve 77 from separating from the movable hydraulic sleeve 71, A flange 79 for preventing separation is provided at one end of the fixed hydraulic sleeve 77. The other end of each fixed hydraulic sleeve 77 is fixed to an appropriate position of the upper frame 5 via a support bracket 81, and one fixed hydraulic sleeve 77 is connected to a hydraulic source (through a bendable deformable hydraulic hose 83). (Not shown). An O-ring 85 is interposed between the other end of the movable hydraulic sleeve 71 and the flange 79 of the fixed hydraulic sleeve 77.

The T-shaped joint 69, the hydraulic sleeves 71, 77, and the like having the same configuration as the T-shaped joint, the hydraulic sleeve, and the like are a lower hydraulic chamber in the upper hydraulic cylinder 47, an upper hydraulic chamber in the lower hydraulic cylinder 63, It is connected to the lower hydraulic chamber.

The operation of this embodiment will be described based on the above configuration.

By driving the mold head servomotor 17, the upper ball screw 19 and the lower ball screw 33 for the mold head are rotated in synchronization. As a result, the upper mold head 13 and the lower mold head 29 are moved in the left-right direction, so that the workpiece positioned between the upper mold head 13 and the lower mold head 29 is moved in the left-right direction. It can be performed. Further, by driving the cylinder head servo motor, the upper ball screw 57 and the lower ball screw for the cylinder head are rotated in synchronization. As a result, the upper cylinder head 49 and the lower cylinder head 65 can be moved in the left-right direction so that the upper mold 11 and the upper hydraulic cylinder 47 and the lower mold 27 and the lower hydraulic cylinder 63 face each other vertically. . At this time, the T-type joint 69 and the pair of movable hydraulic sleeves 71 move in the left-right direction with respect to the upper frame 5, while the fixed hydraulic sleeve 77 does not move in the left-right direction with respect to the upper frame 5. Therefore, the hydraulic hose 83 does not move in the left-right direction, and the combined volume of the T-type joint 69, the movable hydraulic sleeve 71, and the fixed hydraulic sleeve 77 is substantially constant.

According to the present embodiment as described above, when the cylinder head 49 (same for the cylinder head 65) moves in the left-right direction (a mode of the horizontal direction), the hydraulic hose 83 moves in the left-right direction. There is no. Therefore, it is possible to reduce the cost by suppressing the length of the hydraulic hose 83 as much as possible, and the hydraulic hose 83 does not occupy a large space. Further, there is no risk of oil leakage due to damage such as breakage of the hydraulic hose 83, and the working efficiency is improved.

When the cylinder heads 49 and 65 move in the left-right direction, the combined volume of the hydraulic sleeves 71 and 77 and the T-shaped joint 69 is almost constant, so that the inside of the hydraulic sleeves 71 and 77 and the T-shaped joint 69 are substantially constant. It is possible to appropriately move the cylinder heads 49, 65 by suppressing the fluctuation of the hydraulic pressure in the joint 69.

The present invention is not limited to the hydraulic press machine 1 of the type in which the mold heads 13, 29 and the cylinder heads 49, 65 move in the horizontal direction, but the mold heads and cylinders move in the vertical direction. It also includes moving hydraulic press machines.

[0026]

[Effect of device]

 As understood from the above description of the embodiment, when the cylinder head moves in the horizontal direction (or the vertical direction), the hydraulic hose does not move in the horizontal direction (or the vertical direction). Therefore, the length of the hydraulic hose can be suppressed as much as possible to reduce the cost, and the hydraulic hose does not take up a large space. Further, there is no fear of oil leakage due to damage such as breakage of the hydraulic hose, and the working efficiency is improved.

When the cylinder head moves in the horizontal direction (or the vertical direction), the combined volume of the hydraulic sleeve and the T-type joint is almost constant, so that the hydraulic pressure in the hydraulic sleeve and the T-type joint is The fluctuation of the cylinder head can be suppressed and the cylinder head can be moved appropriately.

[Brief description of drawings]

FIG. 1 is a front view of a hydraulic circuit device that is a main part of the present embodiment.

FIG. 2 is a plan view of the hydraulic circuit device.

FIG. 3 is a front view of the hydraulic press machine.

[Explanation of symbols]

 1 Hydraulic Press Machine 5 Upper Frame 11 Upper Mold 13 Upper Mold Head 47 Upper Hydraulic Cylinder 49 Upper Cylinder Head 69 T-Type Joint 77 Fixed Hydraulic Sleeve 83 Hydraulic Hose

Claims (2)

[Scope of utility model registration request] 1. A frame is provided with a mold head provided with a mold and a cylinder head provided with a hydraulic cylinder for moving the mold up and down with respect to the mold head so as to be movable in the horizontal direction. To the base of the T-type joint, and hydraulic sleeves are provided at one end and the other end of the T-type joint, respectively, and the hydraulic sleeves are not horizontally movable in the frame and relatively with respect to the T-type joint. A hydraulic press machine, which is configured to be movable in a horizontal direction and has one hydraulic sleeve connected to a hydraulic source via a hydraulic hose. 2. A mold head including a mold on a frame,
Cylinder heads provided with hydraulic cylinders for vertically moving the mold with respect to the mold head are provided so as to be vertically movable, and the base of the T-shaped joint is connected to the hydraulic cylinders. Hydraulic sleeves are provided at one end and the other end, respectively, and each hydraulic sleeve is configured to be immovable in the vertical direction relative to the frame and movable in the vertical direction with respect to the T-shaped joint, and one hydraulic sleeve is connected via a hydraulic hose. A hydraulic press machine characterized by being connected to a hydraulic power source.