JPS5911434B2 - handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 5. The present invention relates to a handling device used in a press or the like.

A conventional device is shown in FIG.

In this case, the spindles 3 and 3 of the fingers 1 and 2 to which the grippers, which are replaced depending on the external shape of the product (not shown), are attached are fixed to the main body 5 side together with the rectangular frame-shaped support 4. The support body 4 is bridged between bars 5c supported horizontally on both sides between a stopper 8 welded to the tip of a member 5a formed by cutting out a cylindrical portion and a ring portion 5b. Then, a compression spring T is interposed at the tips of the fingers 1 and 2 to urge them in the direction of opening the fingers 1 and 2,
This compression spring 7 provides a moment to open the fingers 1 and 2 around the support shafts 3 and 3. 8 is the main body 5
The end stopper supported on the side restrains the forward movement when it comes into contact with the front end 9c of the cam portion 9a of the piston 9 guided by the holder 6, but the piston 9 compresses the compression spring 9. Move forward slightly.

The cam surface 9b of the piston 9 is in contact with the rollers 1a, 2a provided at the right free ends of the fingers 1, 2, respectively, so that the 5 fingers 1, 2 are compressed when the piston 9 moves from side to side. Due to the moment, it slides around the support shafts 3, 3 following the cam surface. A cylinder part 11 separate from the cylinder part 10 is integrally provided outside the cylinder part 10 with respect to the piston 9, and 30 this cylinder part 11
A rack portion 12a is attached to the outer periphery of the piston 12 that slides inside the piston 12.
The upper wall of the cylinder part 11 is correspondingly cut out so that the pinion 13 meshes with the rack part 12a. Also, there is a rack 14 in the vertical direction that meshes with this pinion 13.
35 is formed on the frame 15 that supports the entire device. 16 is a compression spring.

Therefore, in order to grasp and lift a product, for example, to perform a high-speed operation on a press part, the piston 9 must first be moved to the backward end (right end).
In this state, the product is held between grippers (not shown) installed in correspondence with the fingers 12, and then the piston 9 is moved forward by compressed air.

At this time, when the fingers 1 and 2 are moved in the closing direction against the moment of the compression spring 7 by the cam surface 9b integral with the piston 9, a product (not shown) is gripped between the respective grippers of the fingers 1 and 2. It will be done. At this time, the front end 9c of the cam portion 9a comes into contact with the stopper 8 and stops. Next, when the piston 12 is moved to the left by compressed air, the rack part 12
The pinion 13 rotates in the direction of the arrow through the pinion a, and the entire device is raised by engagement with a rack 14 provided vertically on the frame 15. Then, when the piston 9 is moved backward (moved to the right) to release the gripper (not shown) that grips the product at the upper end, the fingers 1 and 2 are opened by the compression spring 7, and the product is released from the gripper. Ru. The conventional device described above requires two sets of pistons and cylinders, and is undesirable in that it is equipped with an expensive rack and pinion mechanism. The present invention provides a handling device that can achieve similar operations using a set of pistons and cylinders.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In the configuration of the present invention, the configuration of the following parts is the same,
Corresponding parts are given the same reference numerals as in FIG. 1 showing the conventional device.

That is, the fingers 1 and 2, the support shafts 3 and 3 of this ficar,
The rollers 1a, 2a, holder 6, compression spring 7, stopper 8, piston 9, its cam portion 9a, and cylinder 10 are the same as those of the conventional device. However, the conventional piston cylinder,
The present invention does not use a lifting mechanism using a rack and pinion, but is constructed as follows. The above-mentioned components are guided in a frame 21 by two vertical balls 22, 23, in particular in the cylinder part 10, so as to be able to rise and fall;
It is suspended from 3.

A protruding part 24 is installed on the upper part of the cylinder part 10 of the handling device, which is located at the lowest end under its own weight, and a pin 25 is installed horizontally therein, and an L-shaped lever 26 having a groove 26a that engages with this pin is installed. The cylinder section 10 is moved upward through the protruding section 24 by the rocking motion, thereby performing a predetermined operation. This L-shaped lever 26 is rotatably supported by a horizontal support shaft 27 provided on the frame 21 side at the center of the side where the engagement groove 26a is not provided, and the L-shaped lever 26 is mounted counterclockwise on that side. A tension spring 28 is suspended from the frame 21 to provide a rotational moment in the direction. This tension spring 28 applies a counterclockwise rotational torque to the lever 27 so as to move the cylinder section 10 downwardly, and a clockwise rotational torque to the lever 27 so as to move the cylinder section 10 upwardly. The mechanism for providing this is described below. One of the rods 9a of the piston 9 is extended to the right end of the cylinder portion 10, and an L-shaped lever pressing disc 29 is attached to this extended end.
to be fixed. Therefore, by moving the roller 30 provided at the end of the L-shaped lever 27 to the left (forward movement) of the piston 9, a clockwise moment is applied to the L-shaped lever 27 by the L-shaped lever pressing disk 29 at the rear end of the rod 9a. will be given. Therefore, at the forward end of the piston 9, the opening rollers 1a, 2a
The fingers 1 and 2 are closed by the cam portion 9a via the cam part 9a, and then the product is completely gripped by grippers (not shown) provided on the fingers 1 and 2, respectively, so that the product is guided to the vertical poles 22 and 23 almost at the same time. and these cylinder parts 1
0 performs a predetermined upward movement, and as soon as the rig gripper releases the product due to the retraction of the piston 9, the L-shaped lever 27 is rotated counterclockwise by the tension spring 28, and the cylinder portion 10 moves against the pawls 22, 23. descend to the bottom of the In the configuration according to the present invention, it is possible to provide a handling device that includes a cylinder and a piston as one set and is suitable for high-speed operation, and there is no need for the conventionally expensive rack and pinion mechanism, reducing the overall cost and reducing the equipment space. can be saved.

[Brief explanation of the drawing]

FIG. 1 shows a vertical sectional view of a conventional handling device, and FIG. 2 shows a vertical sectional view of a handling device according to the invention. In the figure, 1 and 2 are fingers, 9a is a cam part, 9 is a piston, 26 is an L-shaped arm, 28 is a tension spring, 2
9 indicates an L-shaped arm pressing plate.

Claims (1)

[Claims] 1. A device that opens and closes a pair of fingers in conjunction with the reciprocation of a piston, including a guide member that vertically guides the cylinder portion of the piston, and a swingable L-shape whose one end is engaged with the cylinder portion. A handling device comprising a lever, wherein when the other end of the L-shaped lever is pressed by a pressing plate provided on the piston, the L-shaped lever swings to move the cylinder portion up and down.