KR0149784B1 - Work retreiving device of cnc lathe - Google Patents

Abstract

The present invention relates to a workpiece recovery apparatus for automatically recovering and discharging a finished workpiece of a CNC lathe, and more particularly, to a workpiece recovery apparatus of a CNC lathe suitable for overcoming spatial constraints and interference installed on a CNC lathe.

The conventional workpiece recovery device of the CNC lathe requires a large installation space, which has disadvantages of space limitation and interference.

Therefore, the present invention connects the main bracket fixed to the machine body and the main rotary shaft bushing coupled to the main shaft support and the link mechanism attached to the rod end of the drive cylinder hinged, and rotates according to the rotation angle of the main shaft A driven rotary shaft having a driven sprocket at the lower part of the arm is axially coupled to the driven shaft support, and connects a chain between the main main sprocket fixed to the main rotation support end and the driven sprocket, and the main main sprocket and the chain according to the arm rotation. The bracket having the bucket in front of the driven rotating shaft rotated by rotating the driven sprocket by the change of the tangential length is fixed by the positioning bushing.

Description

Workpiece recovery device of CNC lathe

(A) and (b) are front and side views of the related art.

2 is a cross-sectional view of the present invention.

3 is a schematic view showing an operating state of the present invention, as seen from the right side of FIG.

* Explanation of symbols for main parts of the drawings

1: driving cylinder 2: cylinder bracket

3: main bracket 31: stopper

4: link mechanism 5: main shaft

6: fixed cap 7: main shaft support

8: Main chain plaque 9: Arm

91: protective cover 92: arm fixing mechanism

10: driven sprocket 11: driven driven shaft

12: Positioning bushing 13: Bracket

14: bucket

The present invention relates to a workpiece recovery apparatus for automatically recovering and discharging a finished workpiece of a CNC lathe, and more particularly, to a workpiece recovery apparatus of a CNC lathe suitable for overcoming spatial constraints and interference in a CNC lathe.

Conventional CNC lathes have several types of work-recovery devices, but when installed below the spindle center, there is a problem in that protection against needles is inadequate. As shown in the figure, the rotary cylinder 200 is fixed to the upper part of the CNC lathe main body 100 with the bracket 210, and the receiver sleeve 230 is disposed at the front end of the cylinder shaft 220 with an arm having a predetermined length downward. 300, but has a bucket 310 at its tip.

This conventional recovery device has a relatively simple drive system with a simple structure in which the arm 300 and the bucket 310 are orthogonally coupled to the rotating shaft 220, but should have a large space for installation. As in b), there are disadvantages of spatial constraints and interference, such as the operating range of the arm 300.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to install a workpiece hatcher in a small space between the spindle center and the door cover, thereby overcoming the spatial constraints and interference of the CNC lathe due to the workpiece recovery device. The purpose is to.

The present invention for achieving the above object is a link mechanism attached to the rod end of the drive cylinder hinged to the main bracket fixed to the machine body and the main rotary shaft bushing coupled to the main shaft support in the workpiece recovery device of the CNC lathe; At the same time, the driven rotary shaft having the driven sprocket at the lower part of the arm rotating according to the rotation angle of the main rotary shaft is axially coupled to the driven shaft support, and is connected between the main sprocket fixed to the main shaft support end and the driven sprocket. A bracket having a bucket in front of the driven rotating shaft rotated by rotating the driven sprocket by the change in the tangential length of the main mains sprocket and the chain as the arm rotates is fixed by the positioning bushing.

This will be described in detail with reference to the accompanying drawings.

In installing the workpiece recovery device on the CNC lathe as shown in FIGS. 2 and 3, the cylinder bracket 2 is fixed to the upper part of the main bracket 3 attached to the CNC lathe to hinge-engage the driving cylinder 1. In addition, the rod end is connected to the main rotating shaft (5) which is connected to the link mechanism (4) by the angular rotation, and the main rotating shaft (5) is fixed to the main bracket (3) by a fixed cap (6) to the main bracket (3). And bushing coupled to the main shaft support (7) fixed to the main bracket, the main chain bracket (8) is fixed to the end of the support (7) by bolts (B) to protrude through the main shaft (5) A driving device of the main shaft is formed, and the arm 9 of a predetermined length penetrating the main shaft 5 protruding forward of the main body plaque 8 is armed by the arm fixing mechanism 92. And driven shaft support having a driven sprocket 10 below the arm 9 and fixed to the arm. The main bracket 13 and the driven sprocket 10 are fixed to the positioning bushing 12B so that the bracket 13 having the bucket 14 at the tip end thereof is fixed to the positioning bush 12B. The chain (C) is installed between the ().

On the other hand, the arm (9) is a configuration covered with a protective cap (82) which is covered with a protective cover 91 and the main support rotation. In addition, the drive cylinder 1 may have a pinion structure in which power transmission of the main rotating shaft 3 is coupled to the rack attached to the cylinder rod and the main rotating shaft 5 for the purpose of better space utilization.

Looking at the operating state of the present invention configured as described above as shown in Figure 3 when the drive cylinder (1) is unloaded from the position where the bucket 14 can receive the workpiece in the lower portion of the main shaft center by the link mechanism (4) The linear motion is transmitted to the main rotating shaft (5) with the rotational force. At this time, the arm is rotated in the clockwise direction of FIG. 3 with respect to the main axis of rotation (5). At this time, the main bracket (3) forms an adjustable stopper (31) at one lower side to set and set the rotation angle of the arm.

Thus, the main shaft 5 is rotated in a state of being positioned in the main bracket (3) with the fixing cap (6), the rotational force is transmitted to the arm (9) fixed by the arm fixing mechanism 92 to the arm (9) Turn at this constant clockwise rotation. Referring to the operation principle of the driven rotary shaft 11 which is operated at the same time, the arm 9 rotates the main rotary shaft 5 by the rotation and the driven sprocket 10 coupled to the driven rotary shaft 11 is the main rotary shaft Rotating movement is performed by the main inlet plaque 8 and the chain C fixed to the support 7. Looking at the principle of the rotational movement, the tangential position is changed by the rotation angle of the arm (9) of the main insulated bracket (8) and the chain (C) fixed without rotation, wherein the tangential change angle of the arm (9) It becomes the same angle as the rotation angle.

Accordingly, the driven sprocket 10 having a smaller size than the juice plaque 8 rotates by a tangential change, that is, a circumferential length of the main sprocket 8. Therefore, the arm 9 is moved to the inlet 21 side of the work box 20 while the juice sprocket and the chain follow the tangential change length of the driven sprocket 10 to the driven shaft 11, that is, the bucket 14 counterclockwise. A simultaneous action of rotation occurs to shoot the inlet 21 while preventing the workpiece from falling on the bucket 14 due to the rotation of the arm 9.

In the above, the operation according to the driving cylinder unloading has been described. Since the return operation according to the loading of the driving cylinder is in the reverse order of the above description, a description thereof will be omitted.

The present invention, which is configured and operated in this way, does not occupy a large amount of operating space in a narrow space, and thus acts as an effective operating range.

Claims (3)

In a workpiece recovery device of a CNC lathe, a link mechanism (2) mounted at a rod end of a drive cylinder (1) with a main bracket (3) fixed to a machine body and a main rotary shaft (5) bushing coupled to a main shaft support (7) ( 4) and a driven rotary shaft 11 having a driven sprocket 10 at the lower part of the arm 9 which rotates according to the rotation angle of the main rotary shaft 5 is coupled to the driven shaft support 12 at the same time. It is connected to the chain (C) between the main main sprocket (8) and the driven sprocket (10) fixed to the main shaft support (7) end, the main main sprocket (8) and the chain (C) according to the arm rotation The bracket 9 having the bucket 14 in front of the driven shaft 11 rotated by rotating the driven sprocket 10 by the change in the tangential length of the CNC lathe, characterized in that is fixed by the positioning bushing 12B. Workpiece recovery system. The method of claim 1, wherein the linear movement of the drive cylinder (1) is a means for power transmission to the main rotation shaft in each rotation so that the power is transferred to the rack attached to the rod of the drive cylinder and the pinion attached to the main rotation shaft (5). Workpiece recovery device for CNC lathe characterized in that. 2. The workpiece recovery device of a CNC lathe according to claim 1, characterized in that the arm (9) whose main axis of rotation is rotated about it as it pivots is limited to an adjustable stopper (31) fixed to the main bracket.