JPS6018276Y2 - Swivel arm of workpiece conveyance means - Google Patents

Description

[Detailed description of the invention] This invention is a workpiece conveying means that transports the workpiece to each of the above positions by reciprocating one swing arm between the workpiece loading position, processing position, and unloading position of the machine tool. The purpose of the swing arm is to transport a finished workpiece from a processing position to a carry-out position, and to carry the workpiece out onto a carry-out chute at the carry-out position without changing the right and left direction of the workpiece, and The purpose is to transport the finished workpiece safely and reliably so that no dents occur on the finished workpiece.

Conventionally, finished workpieces that have been completed machining while being gripped by the chuck of the main spindle are dropped directly onto the bed or unloading chute by releasing the chuck or protruding from inside the spindle with a push rod or workpiece material. It was being carried out.

Therefore, the right and left sides of the workpiece may be reversed during the above-mentioned fall, or
It had the disadvantage of causing dents.

Furthermore, in the conventional shoe holding type shoe grinding machine, various rotating arm type workpiece conveyance means have been devised and put into practical use, but in the chuck work type lathe and grinding machine, the above-mentioned drop type conveyance method is not possible. There was nothing to leave.

The present invention has been devised in view of the above-mentioned conventional situation, and is characterized in that a workpiece holding member and a workpiece placement gutter-like member are provided close to each other on the turning radius of the turning arm. That is.

By devising this swivel arm, it was possible to realize a swiveling arm type one-crop conveying means in the above-mentioned Chatzukwa-ri type machine tools (lathes, grinders).

Hereinafter, an embodiment of this invention will be described with reference to the drawings. FIG. 1 is a perspective view of a swing arm 1 of this invention, in which a pin, which is a workpiece holding member, is placed on a swing radius R centered on the swing center 0 of the arm. 11 and a receiver 12, which is a gutter-like member for placing a workpiece, are installed apart from each other by an angle β.

Reference numerals 13, 14, and 15 indicate a bolt hole for mounting to a pivot shaft, a hole for adjusting the mounting angle, and an adjustment screw, respectively, which will be described later.

An example of a workpiece conveying means for an internal grinding machine using this rotating arm is shown in FIG.

A rotating shaft 4 is supported by a bearing (not shown) on a main body 3 installed upright on the bed 2 so that it can be rotated and indexed and can be stroked back and forth, and a rotating arm 1 is attached to a bolt 13 at the front end of the rotating shaft 4. It's stuck.

A pin 41 installed on the pivot shaft 4 is loosely fitted into the hole 14 of the pivot arm 1, and the mounting angle of the pivot arm 1 can be finely adjusted using the left and right adjusting screws 15.

A carry-in chute 5 and a carry-out chute 6 are attached to the front surface of the main body 3.

Reference numeral 7 denotes a chuck installed at the tip of the workpiece spindle, and the front surface of the chuck 7 and the front surface of the carrying-in chute 5 are substantially on the same plane, and the carrying-out chute 6 is located in front of this plane. positioned.

The operation of the workpiece conveying means in this embodiment, particularly the above-mentioned swing arm, will be explained next.The pin 11 of the swing arm is in the workpiece W at the carry-in position shown in FIG.

At this position, the swing arm 1 is moved backward and the pin 11 is moved toward the workpiece W.

into the center hole of the workpiece W.

When the workpiece is held, the workpiece is moved forward by a little more than the length of the workpiece, and is pulled out from the front of the loading chute 5.

During this time, the workpiece Wf chucked by the chuck 7 is internally ground with a stone (not shown).

At the same time as the internal grinding of the workpiece W is completed, the pivot shaft 4 is rotated by an angle (α and β) in the direction of the arrow S by a rotation indexing means (not shown), and reaches the position shown in FIG. 3. .

Then, the gutter-shaped receiver 12 faces the finished workpiece Wf that has been processed, the chuck 7 is released, and the finished workpiece W is projected forward from inside the chuck by an unillustrated projecting means and placed on the receiver 12. Posted.

Next, the rotating arm 1 rotates backward by an angle β (see arrow T)
) to the position shown in Figure 4.

Then, the unprocessed workpiece W is moved back and held by the pin 11.

is inserted into the chuck 7 and chucked, and then the rotating arm 1 moves forward, rotates backward at an angle α, and returns to the position shown in FIG. The material is brought to the exit 61 of the printer, and is dropped into the exit 61 and transported out.

After that, the swing arm 1 moves backward to move to the next unprocessed workpiece W.
1 is held at pin 11 and the above cycle is repeated.

As is clear from the above description, the present invention provides a workpiece holding member and a gutter-like member for placing a workpiece close to each other on the radius of rotation of the rotation arm, thereby enabling rotation in a chuck work type machine tool. An arm-type one-crop transport means can be realized, and in particular, when carrying out a workpiece, the left and right direction of the workpiece does not change, and the workpiece is carried out safely and reliably without causing dents or the like. It is something that can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the swing arm of the present invention;
．． Figure 3.4 shows the loading (unloading) positions of the rotating arm in the workpiece conveyance means using the rotating arm in Figure 1;
FIG. 3 is a diagram showing the position where a finished workpiece is received by the workpiece mounting trough-like member of the swing arm and the position where the unfinished workpiece is inserted into the chuck. 1... Swivel arm, 11... Pin (workpiece holding member), 12... Receiver (trough-like member for placing workpiece), 4... Swivel axis, 5... Carrying-in chute, 6... Carrying-out chute, 7...
·Chuck.

Claims (1)

[Scope of utility model registration request] By reciprocating one swing arm, the unprocessed workpiece is transported from the loading position of the machine tool to the processing position in the forward rotation, and the finished workpiece is transported from the processing position to the unloading position in the backward rotation. In the rotating arm of the workpiece conveying means, a workpiece holding member and a workpiece mounting gutter-like member are provided at positions close to each other on the rotation radius of the rotating arm, and the first rotating position of the rotating arm ( A means for holding the unfinished workpiece on the workpiece holding member at the carry-in position), a means for releasing the chuck at the end of the forward rotation and transferring the finished workpiece onto the gutter-like member, and a means for temporarily stopping the swing arm at the position) to chuck the unfinished workpiece of the workpiece holding member, and when the swing arm further swings back and returns to the initial position, the opening of the gutter-like member A rotating arm of a workpiece conveying means, characterized in that a portion of the arm is oriented laterally downward so that a finished workpiece can slide directly onto a discharge chute.