KR20060025417A - Non power automatic reverse device for workpiece ejecting - Google Patents

Abstract

The present invention relates to a non-powered automatic reversing apparatus for discharging the workpiece discharged from the workpiece cutting equipment in a non-powered, in the device receiving the workpiece processed in the main axis of the workpiece cutting equipment is transferred to the workpiece discharge place to discharge the workpiece, An actuator supported by a parts unloader of the workpiece cutting equipment and connected to a transferable arm; A bucket connection bracket having one end fixed to an operation end of the actuator; A bucket coupled to both ends of the bucket connecting bracket, the bucket being placed in a position deviating from the hinge to be rotated in one direction; Stopping means for stopping the rotation at a predetermined position so that the opening of the bucket is upward; And a guider means positioned at the side of the workpiece discharge site to guide rotation of the bucket just before the transfer to the workpiece discharge site is completed so that the opening of the bucket changes its position downward.

Inverter, Bucket, Spindle, Bar Peter, Part Unloader, Tool Stand, Guider, Guide Pin

Description

Non power automatic reverse device for workpiece ejecting}

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is an overall configuration diagram of a non-powered automatic reversing apparatus according to the present invention.

2 is an enlarged view of a non-powered automatic reversing apparatus according to the present invention.

3 is an enlarged perspective view of a bucket and a guider applied to the non-powered automatic reversing apparatus according to the present invention.

4 and 5 is an operational state of the bucket according to the bucket-side guide pin position.

<Explanation of symbols for the main parts of the drawings>

24: arm

26: actuator

28: bucket connection bracket

30: bucket

33: guide pin                 

40: guider

40a: cam surface

50: damper

The present invention relates to a workpiece discharging device applied to a workpiece cutting equipment, and more particularly to a non-powered automatic reversing apparatus capable of discharging the workpiece discharge without power.

For example, a machine tool for cutting a workpiece, in the case of a numerically controlled lathe, requires a system for cutting the workpiece after the cutting operation with the tool by biting the workpiece into the spindle.

This automatic workpiece discharging system is a requirement for implementing unmanned automation. In particular, when two spindles are installed oppositely, two tool posts are installed, and automatic discharge should be avoided.

In the prior art, the bucket receiving the workpiece is configured to be reversed through the actuator and the power train. That is, the pinion engaged with the rack connected to the cylinder was driven, and the chain rotated on the shaft connected to the pinion was connected to the rotation shaft of the bucket to be driven.

As a result, the number of parts such as racks and pinions, chains, chain wheels, and shaft support bearings increased, resulting in an increase in installation costs and an increase in maintenance costs due to failures.

The present invention is to solve the problems of the prior art as described above, the bucket receiving the work without additional power is configured to automatically inverted by a simple structure to reduce the installation cost, significantly reduce the maintenance cost by reducing the failure rate The objective is to provide a non-powered automatic reversing device for ejecting a workpiece so that it can be made.

Specific means of the present invention for achieving the above object,

In the device for receiving the workpiece processed in the spindle of the workpiece cutting equipment is transported to the workpiece discharge place to discharge the workpiece,

An actuator supported by a parts unloader of the workpiece cutting equipment and connected to a transferable arm;

A bucket connection bracket having one end fixed to an operation end of the actuator;

A bucket coupled to a lower end of the bracket connecting bracket and placed in a position outside the hinge so that the bucket is rotated in one direction;

Stopping means for stopping the rotation at a predetermined position so that the opening of the bucket is upward; And

Guider means positioned on the workpiece discharge site to guide rotation of the bucket just before completion of the transfer to the workpiece discharge location such that the opening of the bucket changes attitude downward; Is achieved, including.

In addition, according to the invention, the arm is connected to the drive means to be rotatable about the transport direction.                         

In addition, according to the present invention, the stopping means is provided with a locking piece on one side of the opening of the bucket, the locking piece may be configured to be caught by the bucket connecting bracket when the bucket is rotated by its own weight.

In addition, according to the present invention, the guider means is composed of a guider having an arc-shaped inclined cam surface to which the guide pin protruding from the bottom of the bucket contact.

In addition, according to the present invention, the bucket or the bucket connecting bracket may be further provided with a damper for mitigating the impact during the rotation stop of the bucket.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the workpiece cutting equipment 10 includes a first spindle 12 and a second spindle 14 facing each other, and a tool post (not shown) is disposed below the first spindle 12. It is.

Therefore, the workpiece machined on the first spindle 12 is blocked by the tool bar when the free fall, it can not be discharged. Therefore, the workpiece can be discharged to the conveyor device 22 disposed on one side of the second spindle 14 by using the reversing device 20 supported by the parts unloader of the workpiece cutting equipment 10. have.

The inverter 20 includes an actuator 26 (eg, pneumatic cylinder) connected to an arm 24 supported by the part unloader 18 and operated pneumatically. One end of the bucket connection bracket 28 is connected to the operating end of the actuator 26, and the other end of the bucket connection bracket 28 is hinged by a hinge pin 32. It is rotatably installed.

The arm 24 may be configured to be rotatable by a driving means such as a motor so as to be rotatable about a Z axis in a conveying direction.

At this time, the bucket 30 is placed at a position away from the center of the center of gravity of the hinge pin 32 by a certain distance (L) is installed so that the rotation itself occurs in the clockwise direction in FIG.

At this time, the bucket 30 has a stop means for stopping the rotation at a predetermined position so that the opening 30a is upward. In the present embodiment, the stopping means is provided with a catching piece 31 at one side of the opening of the bucket 30, and when the catching piece 31 is rotated by the self-weight eccentricity of the bucket 30, the bucket connecting bracket It is configured to be locked to (28).

On the other hand, the guider 40 is located on the upper portion of the conveyor device 22 as a rotation induction means for inducing the rotation of the bucket 30 to guide the opening 30a downward, and the guider 40 is cut. It is fixed to the processing side inner wall 10a of the equipment 10 for.

The guider 40 has a cam surface 40a inclined in an arc shape in which the guide pin 33 protruding from the bottom surface of the bucket 30 is in contact.

The bucket connection bracket 28 is provided with a rubber damper 50 to mitigate the impact during the rotational stop of the bucket 30.

The operation of the inversion device configured as described above will be described.

First, when a workpiece is being cut on the first spindle 12, the reversing device 20 moves to the second spindle 14 so that the bucket 30 is placed on the conveyor device 22 to have a standby state. At this time, since the guide pin 33 of the bucket 30 stays at the uppermost position of the cam surface 40a of the guider 40 as shown in FIG. 3, the opening 30a of the bucket 30 is cut on the conveyor device 22. Have a tilting position looking at the inner wall of the

After the machining of the workpiece is completed and there is a discharge command from the controller of the equipment, the arm 24 connected to the bar feeder 18 moves to the first spindle 12 integrally with the bucket 30. At this time, the guide pin 33 is separated from the contact of the cam surface (40a), at this time the center of gravity of the bucket 30 is spaced apart from the hinge pin (32) which becomes the rotation center in FIG. It rotates and stops at the moment when the engaging piece 31 touches the rubber damper 50 so that the opening portion 30a maintains the upward position.

At this time, by the actuator 26 and the arm rotation motor (M), the bucket 30 is located below the workpiece being bitten by the first spindle (12). Therefore, when the workpiece is unclamped on the chuck of the first spindle 12, it is separated by its own weight and stored in the bucket 30.

In this state, when the traveling signal for sending the bucket 30 back to its original position drops, the arm 24 supported by the part unloader 18 moves to the second spindle 14 integrally with the bucket 30, and at this time, the actuator 26 and the arm rotation motor M work in opposite directions, and the bucket 30 is conveyed to the conveyor apparatus 22.

At this time, as the bucket 30 enters the conveyor device 22, the guide pin 33 on the bucket 30 moves along the increasing height of the inclined cam surface 40a of the guider 40 as shown in FIGS. 4 and 5. As a result, as shown in FIG. 3, the bucket 30 rotates about the hinge pin 32 in the counterclockwise direction so that the opening 30a maintains the downward position, and thus the workpiece falls into the conveyor device 22 by its own weight.

As described above, according to the present invention, the bucket receiving the work without additional power is automatically inverted to the non-power in the driving direction to discharge the work. Therefore, the installation cost is reduced, the failure rate is reduced, and the maintenance cost is greatly reduced.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

As described above, according to the non-powered automatic reversing apparatus for discharging the workpiece, the bucket receiving the workpiece is automatically reversed by the rotation induction mechanism with no power as it reaches the discharge position, thereby discharging the workpiece. The maintenance cost can be reduced.

Claims (4)

In the device for receiving the workpiece processed in the spindle of the workpiece cutting equipment is transported to the workpiece discharge place to discharge the workpiece, An actuator 26 connected to an arm 24 supported by the part unloader of the workpiece cutting equipment; A bucket connection bracket (28) having one end fixed to an operation end of the actuator (26); A bucket 30 hinged to both ends of the bucket connection bracket 28 and installed so as to be rotatable by being placed at a position away from the hinge; Stopping means for stopping the rotation at a predetermined position such that the opening of the bucket 30 is upward; And Guider means positioned on the workpiece discharge site to guide rotation of the bucket 30 immediately before completion of transfer to the workpiece discharge location such that the opening of the bucket changes its position downward; Non-powered automatic reversing device for discharging the workpiece, characterized in that it comprises a. The method of claim 1, The arm (24) is a non-powered automatic reversing device for discharging the workpiece, characterized in that connected to the drive means to be rotated around the feed direction. The method of claim 1, The stop means is provided with a locking piece 31 on one side of the opening of the bucket 30, the locking piece 31 is to the bucket connecting bracket 28 when the bucket 30 is rotated by its own weight Non-powered automatic reversing device for discharging workpieces, characterized in that configured to be locked. The method of claim 1, The guider means is a non-powered automatic reversing device for discharging the workpiece, characterized in that the guider (40) having an inclined cam surface (40a) in contact with the guide pin (33) protruding from the bottom of the bucket (30).

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