JPS6087113A - Transfer apparatus for bar material - Google Patents

Abstract

PURPOSE:To enable high speed operation of a transfer apparatus for a shaft of a screw driver or the like by clamping a bar material with projections of upper feed frames having projections disposed on both sides of a workpiece support table parallel to the arraying direction and a tongue piece of a clamp frame. CONSTITUTION:When a base frame 1 of a transfer apparatus is located at an initial position of the elevating direction, a piston cylinder 6a is projected, and a clamp frame 6 is positioned relatively on the left to keep a clamp open state. When a workpiece W is supplied to the open clamp frame 6 and the piston cylinder 6a is drawn back to the right, the clamp 6 is closed to hold to the workpiece W. Subsequently, a piston cylinder 5a is operated to move the workpiece W to the left to a designated position, and the base frame 1 is elevated by a mechanism not shown to deliver the workpiece W to a working machine. In this arrangement, the workpiece can be reliably held to accomplish high-speed operation of the transfer apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for transferring a rod-shaped member such as the shaft of a screw driver. The present invention relates to a device for moving an object by a predetermined distance in a direction perpendicular to its axis.

[Conventional technology]

Among the above-mentioned devices, a device is known in which a bar is placed on left and right beams arranged in parallel, and the beams are transferred by giving circular motion to a predetermined position. Device).

However, when this type of transfer device tries to move an object with an object on it, the object is not fixed, so if it is operated at high speed, the object will be thrown away and the planned result will be lost. Transport may be difficult.

[Summary of the invention]

The purpose of this invention is to eliminate the above-mentioned problems, and includes a feed frame and a clamp frame that extend in the arrangement direction on both sides of the mold, and a protrusion formed on the feed frame and a clamp formed on the clamp frame. A workpiece is placed between the clamp frame and the feed means, and the clamp frame is moved forward and backward with respect to the feed frame, so that the workpiece is securely gripped and transferred.

〔Example〕

Hereinafter, the present invention will be explained with reference to an illustrated transfer device used in a forging device for a flat head screwdriver, which is an embodiment. Reference numeral 1 denotes a base frame of the transfer device, and several plastic working molds 2.2.2, which serve as supports for workpieces, are fixed along the longitudinal direction at the center of the base frame. 3.3.3 is a block that supports a rod-shaped workpiece, and a groove 4 is formed between it and the mold 2.2.

Inside the groove 4, that is, the mold 2.2 serving as a support for the workpiece W
A feed frame 5 and a clamp frame 6 extending in the arrangement direction are arranged on both sides of the frame. That is, the feed frame 5 is supported by the bin 7 slidably in the long hole 1a of the base frame 1.
It is supported so as to be movable in the longitudinal direction on the base frame 1, and is configured to be able to reciprocate in the longitudinal direction by a hydraulically actuated piston cylinder 5a serving as a feeding means. The clamp frame 6 is supported so as to be movable in the longitudinal direction between two bins 8.8 fixed to the feeding frame 5, and a hydraulically actuated piston cylinder 6a serving as a feeding means is connected to the end of the clamp frame 6. .

On the upper surface of the feed frame 5, there are several protrusions 5b, 5b extending upward.
and a tongue piece 6b extending laterally from the clamp frame 6 form a clamp. The tongue piece 6b is made of a spring material and clamps the workpiece W by elastically pressing it against the side surface of the protrusion 5b, so that it can be easily clamped even if there is some error in the dimensions of each part.゛The base frame l has four legs 1b on the lower surface,
It is constructed so that it can be raised and lowered onto the bed 9 by means of a hydraulic cylinder (not shown). 11 is the stand 7 bar installed on the bed 9,
12 is a reference stopper, and these and the leg 1b are aligned by a guide rod 13 fixed to the reference stopper 12.

As shown in FIG. 4, the base frame 1 is configured to be able to move up and down from an initial position A to a first moving position B and a second moving position C located downward. Note that the elevating means for elevating and lowering the base frame 1 is a hydraulic cylinder (not shown).

Next, the front and back of the base frame 1 and the lifting and lowering operations will be explained sequentially according to the steps. (1) In Figures 4 and 5, the base frame 1 is at the initial position A in the lifting direction. The piston cylinder 5a is in the most retracted state, and the base frame 1 is located at the right end. Further, the piston cylinder 6a is in a protruding state, the clamp frame 6 is in a relatively left position, and the clamp is in an open state. When the workpiece W is supplied to the opened clamp, the piston cylinder 6a is retracted to the right and the clamp is closed (FIG. 6).

(2) The piston cylinder 5a operates, and the bottle 7 of the base frame 1 moves to the left end within the long hole 1a. In other words, the transition to the state (3) in FIG. 4 is completed. In this state, the workpieces W each progress from I shown by I in FIG.
Figure 7).

(3) When the base frame 1 is lowered along the guide rod 3 by a hydraulic cylinder (not shown) and reaches the second movement position C,
The workpiece W comes into contact with the mold 2, and the transition to the state shown in FIG. 4 is completed (FIG. 8). Note that the two-pointed line M in the figure indicates the initial position of the base frame l.

(41 The piston cylinder 6a comes into the protruding state, the clamp frame 6 moves to the relative left position, and when the clamp is opened, the state shown in ■ in Fig. 4 is reached, and the workpiece @W is released. (Figure 5).

(5) The base frame 1 is again lowered along the guide rod 13 until it comes into contact with the stopper 11 by a hydraulic cylinder (not shown), and is completely removed from the workpiece @W, resulting in the state shown in (■) in Fig. 4. (Figure 9).

(6) The piston cylinder 6a enters the retracted state, and the clamp frame 6 moves relatively to the right position, resulting in the state indicated by ■ in FIG. 4 (FIG. 10). That is, the base frame 1 returns to its original position, leaving the workpiece W behind.

(7) Next, the base frame 1 rises along the guide rod 13 and stops at the position of the workpiece W, completing the transition to the state shown in FIG. 4. In this state, the clamp frame 6 is in a relatively left position and the clamp is in an open state (FIG. 11).

(8) At this point, the piston cylinder 6a is pulled to the right and the clamp is closed (Fig. 12).

(9) The base frame 1 is raised by a hydraulic cylinder (not shown) and returned to the initial position.

As described above, this invention includes a plurality of workpiece support stands arranged at equal intervals on a base frame, and on both sides of the support stand,
A feed frame extending in the direction in which the support stands are arranged and a clamp frame are arranged side by side, and a clamp is formed by several protrusions extending upward from the top surface of the feed frame and a tongue piece extending laterally from the clamp frame. Since the clamp frame and the clamp frame are configured to be movable individually in the longitudinal direction by separate feeding means provided on the base frame, the bar-shaped workpiece is reliably held between the clamp frame and the feed frame during transfer. Since the workpiece is then transferred to the next process, there is no problem such as the workpiece detaching from the feed frame during transfer.

Note that the tongue piece 6b is made of a spring material, and the workpiece W is attached to the protrusion 5b.
If the configuration is such that the workpiece can be clamped by elastically pressing against the side surface of the feed frame, it can be easily clamped even if there is some error in the dimensions of each part between the feed frame and the clamp frame.
j! It won't hurt.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view of the transfer device, FIG. 2 is a front view thereof, and FIG. 3 is a side view.
FIG. 4 is an operating diagram showing the operating steps, and each of the figures from FIG. 5 to FIG. 12 is a front view of each operating step.

Claims (6)

[Claims] (1) A plurality of workpiece support stands arranged at equal intervals on a base frame, and a feed frame and a clamp frame extending in the direction in which the support stands are arranged are arranged in parallel on both sides of the support stands, and A clamp is formed by several protrusions extending upward from the upper surface of the frame and tongue pieces extending laterally from the clamp frame, and the feed frame and the clamp frame are moved in the longitudinal direction by separate feeding means provided on the base frame. A bar transfer device configured to be movable to each bar individually. (2) The bar material transfer device according to claim 1, wherein each separate feeding means is a hydraulically actuated piston cylinder. (3) The feed frame and the clamp frame are configured to be movable simultaneously in the longitudinal direction by separate feeding means, and one of the feed frame and the clamp frame is configured to be movable relative to the other. Transfer equipment for bars made of (4) The bar material transfer device according to claim 1, wherein the tongue piece extending laterally from the clamp frame is formed by a spring made of a plate material. (5) The bar material transfer device according to claim 1, wherein the feed frame and the clamp frame are configured to be movable in the arrangement direction of the support bases and in the vertical direction. (6) The bar material transfer device according to claim 1, wherein the support table is a mold for plastic working arranged in the order of steps.