JP5950438B2 - Die set for hydraulic compressor - Google Patents

Description

  The present invention relates to an upper and lower die set that can be exchanged according to a compression target of a hydraulic compressor used in a compression operation, for example, when a wire is compressed and connected by a clamp. To do.

  Conventionally, a bifurcated support wall is continuous with the upper part of the cylinder, and a ram is slidably fitted in the cylinder so that the die gate is engaged and fixed between the support walls. The upper die is mounted on the lower surface of the upper lid, and the lower die is mounted on the upper surface of the ram, and compresses the compression object disposed between them by the hydraulic pressure of the cylinder (see Patent Document 1).

Japanese Unexamined Patent Publication No. 06-015490

The above-mentioned conventional upper and lower dies of a hydraulic compressor have few cues on the side surface even though they are heavy, so that they are easily dropped when attaching to and detaching from the main body, and are extremely dangerous in high places. For this reason, it is conceivable to connect a fall prevention rope hung around a member of the scaffolding facility at the work site to the upper and lower dies. In order to join the rope to the die, when fixing the plate with a handle on the exposed surface of the die by welding, the die material is special carbon steel, so the carbon content is large, the strength decreases due to heat treatment and thermal cracking In addition, during compression work, the plate is not suitable for welding because it obstructs the visual observation of the marking line of the compression position displayed on the surface of the object to be compressed arranged between the dies, and deteriorates workability. When fixing the plate to the die with bolts, the impact load when the compression die is dropped may be received by the screw part of the bolt, which is weaker than that of the same diameter round bar, and the bolt is damaged by the impact in the shear direction. If the tap part of the die is damaged, the die cannot be repaired. In the case where a locking hole that allows the rope to pass through the die is provided, the strength of the die is reduced due to the reduction in the cross-sectional area effective against the stress applied to the die.
Then, this invention makes it the subject to provide the die set for compressors which prevents fall and improves safety, without deteriorating the intensity | strength and workability | operativity of die | dye.

In order to solve the above problems, in the present invention, a lower die 1 attached to a ram inserted into the hydraulic cylinder 11 and driven to move up and down, and a pair of opposed support walls 12 and 12 extending upward from the hydraulic cylinder 11. The upper die 2 is supported by a die gate 14 attached in between, and constitutes a die set for a hydraulic compressor that compresses an object to be compressed interposed therebetween in the vertical direction. In the lower die 1, a first locking fitting 3 that can be connected to one end of a drop-preventing coupling body such as a rope 5 is attached to the lower portion of the exposed surface in a state of being attached to the compressor 10. It is fixed so that it can be placed. On the upper die 2, a second locking metal 4 that can be coupled to the other end of the coupling body is fixed to the upper corner portion of the exposed surface in a state where the compressor 10 is mounted. The first and second locking fittings 3 and 4 are embedded in the mounting portions 3b and 4b inserted into the mounting holes 1b and 2b provided in the dies 1 and 2 at the mounting position, and embedded in the dies 1 and 2 in the vertical direction. The rod 6 that penetrates the mounting portions 3b and 4b and the set screw 7 that prevents the tightening rod 6 from coming off from the upper or lower surface of the dies 1 and 2 in the vicinity of the mounting position.
The 1st latching metal fitting 3 comprises the cylindrical latching | locking part 3a which can be inserted and latched through a coupling body, and the attaching part 3b which protrudes in the radial direction from the side surface of this cylindrical latching | locking part 3a.
The 2nd latching metal fitting 4 is comprised by the elliptical ring provided with the U-shaped latching | locking part 4a which latches a connection body to one end part, and the U-shaped attachment part 4b at the other end part.

  In the present invention, the connecting body is connected between the dies, and the dies can be attached and detached with the other hand while holding the connecting body with one hand, so that the falling of the dies can be prevented, and the safety of working at high places can be improved. Can be increased. Since the locking metal fitting that connects the connecting bodies is inserted into the die from the side surface and is prevented from coming off by the rod embedded in the die from the upper and lower surfaces, it can be securely attached without reducing the strength of the die. Further, since the rod penetrates the mounting hole for the locking metal and the upper and lower ends are supported in the die, it is firmly fixed to the die, and the locking metal can be effectively prevented from falling off. Further, since the second locking fitting is disposed at the upper corner of the exposed surface of the upper die in the mounted state, good workability is maintained without obstructing the visual observation of the compression position marking line on the object to be compressed. be able to.

It is a perspective view of the dice concerning the present invention. It is a front view of the dice | dies of FIG. FIG. 2 is a cross-sectional view of the die shown in FIG. It is a disassembled perspective view of a locking metal fitting. It is a disassembled perspective view of a 1st latching metal fitting. It is a front view of the state before the compression which mounted | wore the compressor main body with the dice | dies of FIG.

An embodiment of the present invention will be described with reference to the drawings.
In FIG. 6, a pair of upper and lower dies 1 and 2 are attached to the compressor body 10. The compressor main body 10 includes a hydraulic cylinder 11 at a lower portion thereof, and includes a pair of support walls 12 facing left and right extending partially upward continuously from the hydraulic cylinder 11. Each of the support walls 12 includes a jaw portion 13 projecting inward at the upper portion. A ram (not shown) is inserted into the hydraulic cylinder 11 and is slidably fitted by hydraulic pressure. A die gate 14 engages with the jaw portion 13 of the support wall 12 and is detachably fixed between the support walls 12 and 12.

  The lower die 1 is mounted on a ram in the hydraulic cylinder 11 so as to be dropped between the support walls 12 and 12 from above. The lower die 1 is guided by the support wall 12 and can be moved up and down by a ram. Similarly, the upper die 2 is mounted so as to drop between the support walls 12 and 12 from above, and is disposed above the lower die 1. The upper die 2 is fixed between the support walls 12 and 12 in contact with the lower surface of the die gate 14. On the upper surface side of the lower die 1 and the lower surface side of the upper die 2, for example, mold grooves 1 a and 2 a for compressing and molding an aluminum sleeve for connecting wires are provided.

  As shown in FIGS. 1 to 5, a first engagement for coupling one end of a rope 5, which is a drop-preventing coupling body, to the center of the lower portion of the side surface of the lower die 1 that is exposed to the compressor 10. The fastener 3 is fixed. This locking metal fitting 3 is made of steel and has a size that can be arranged in the gap between the lower die 1 and the hydraulic cylinder 11 in a state where the lower die 1 is mounted on the compressor body 10, and the rope 5 is inserted laterally. A possible cylindrical locking portion 3a, and a plate-shaped mounting piece 3b that protrudes in a radial direction from a side surface of the cylindrical locking portion 3a and is inserted into a mounting hole 1b provided in the lateral direction of the lower die 1 It has. The locking metal fitting 3 is fixed to the lower die 1 by a rod 6 embedded vertically in the lower die 1 and a hexagon socket set screw 7 that prevents the rod 6 from coming off. The rod 6 is inserted into the rod hole 1c vertically upward from the lower surface in the vicinity of the mounting hole 1b of the lower die 1, and passes through the mounting hole 1b to prevent the mounting piece 3b from coming off. The hexagon socket set screw 7 is screwed into a screw hole 1d that is open to the lower surface of the lower die 1 continuously to the rod hole 1c.

  A second locking fitting 4 for fastening the other end of the fall prevention rope 5 is fixed to the upper side corner of the side surface of the upper die 2 exposed in the state of being attached to the compressor 10. This locking metal fitting 4 is composed of an elliptical ring made of steel, and has a U-shaped locking portion 4a at one end through which the rope 5 can be inserted and a U-shape at the other end inserted into the mounting hole 2b of the upper die 2. The shape attaching part 4b is provided. The locking metal fitting 4 includes a U-shaped attachment portion 4b at the other end inserted into an attachment hole 2b provided in the upper die 2 in the lateral direction. The locking metal fitting 4 is fixed to the upper die 2 by a rod 6 embedded perpendicularly to the upper die 2 and a hexagon socket set screw 7 that prevents the rod 6 from coming off. The rod 6 is inserted into the rod hole 2c that extends vertically downward from the lower surface in the vicinity of the mounting hole 2b of the upper die 2, and passes through the mounting hole 2b to prevent the mounting portion 4b from coming off. The hexagon socket set screw 7 is screwed into a screw hole 2d opened to the upper surface of the upper die 2 continuously to the rod hole 2c.

 In these upper and lower dies 1 and 2, if the fall prevention rope 5 is connected to the first locking fitting 3 and the second locking fitting 4, the rope 5 can be held with one hand during the attachment / detachment work to the compressor body 10. Since the die 1 or 2 can be attached / detached with the other hand while grasping, the accident does not occur because the die 1 or 2 is accidentally released and does not fall downward from the work site at a high place. Since the locking fittings 3 and 4 are fixed to the rods 6 buried in the dies 1 and 2, the ropes 5 are surely retained without falling off due to a heavy load of the dies 1 and 2 which are heavy objects. Since the rod 6 passes through the mounting holes 1b and 2b for the locking metal and the upper and lower ends are supported in the dies 1 and 2, the rod 6 is firmly fixed to the dies 1 and 2. Since the 2nd latching metal fitting 4 is arrange | positioned in the position remove | deviated from the center of the front of the upper die | dye 2, there is no hindrance to compression work, without disturbing visual observation of the marking line which shows the compression position on a to-be-compressed object. . Since the piercing of the dies 1 and 2 necessary for attaching the locking metal fittings 3 and 4 is limited to a small range with respect to the whole, the strength of the dies themselves is not affected.

DESCRIPTION OF SYMBOLS 1 Lower die 1b Mounting hole 2 Upper die 2b Mounting hole 3 Locking metal fitting 3a Cylindrical locking part 3b Mounting piece 4 Locking metal 4a U-shaped locking part 4b Mounting part 5 Fall prevention rope 6 Rod 7 Set screw 10 Compression Main body 11 Hydraulic cylinder 12 Support wall 13 Jaw part 14 Dice gate

Claims (3)

A lower die attached to a ram inserted into the hydraulic cylinder and driven to move up and down, and an upper die supported by a die gate attached between a pair of opposing support walls extending upward from the hydraulic cylinder, A die set for a hydraulic compressor that compresses an object to be compressed in the vertical direction,
The lower die is fixed to a lower portion of one side of the side surface exposed in the state of being attached to the compressor so that one end of a connection member for preventing the fall can be coupled to be disposed in a gap with the hydraulic cylinder. And
The upper die is fixed to the upper corner of one side of the side exposed in the state of being attached to the compressor, a second locking fitting capable of coupling the other end of the drop prevention connector,
The first and second locking metal fittings are attached to an attachment hole provided in a side surface of the die at the attachment position, and embedded in the die in the vertical direction, and the attachment portion passes through the attachment hole. A die set for a hydraulic compressor, comprising: a rod for retaining the rod; and a set screw for retaining the rod by screwing into the die so as to be tightened from an upper surface or a lower surface of the die near a mounting position. .   The first locking bracket includes a cylindrical locking portion that can be locked through the connecting body, and the mounting portion that protrudes in a radial direction from a side surface of the cylindrical locking portion. The die set for hydraulic compressors according to claim 1 characterized by things.   The second locking metal fitting is an elliptical ring including a U-shaped locking portion that locks the connecting body at one end and the U-shaped mounting portion at the other end. The die set for hydraulic compressors according to claim 1.

Images