KR101235480B1 - Work piece unloading device of maching tool - Google Patents

Abstract

Since the present invention is mounted inside the machine to perform the unloading operation, it is possible to shorten the workpiece discharging time compared to the method of discharging the finished workpiece by moving the outside and the inside of the machine as in the conventional gantry loader, and lower installation cost It is to provide a workpiece unloading device of a machine that can provide the advantage of operating a high-efficiency equipment to a workpiece unloading device for unloading the workpiece machined on the machine's main spindle or subspindle A rodless cylinder disposed at an upper portion of the main body of the machine, the operating end of which moves forward and backward in a direction parallel to the spindle; An arm pivotally connected to an operating end of the rodless cylinder; A lifting cylinder which is connected to the end of the arm and moves the working end toward the workpiece held by the spindle when the arm is pivoted by a predetermined amount; A gripper connected to an operating end of the lifting cylinder to hold a workpiece after the operating end of the lifting cylinder moves downward; One end is hinged to the operating end of the rodless cylinder and the other end is connected to the arm to swing the arm so that the gripper includes an arm cylinder for positioning the workpiece above the workpiece.

Machine Tools, Turning Centers, Grippers, Rodless Cylinders, Workpieces

Description

Work piece unloading device of maching tool

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 a front view showing a workpiece unloading device according to the present invention.

Figure 2 is a side view showing the operation of the workpiece unloading device seen from one side of FIG.

3 is a side view showing a standby state of the workpiece unloading device seen from the other side of FIG.

Figure 4 is an enlarged view of the main portion of Figure 1 configuration of the opening and closing door.

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

12,13: spindle

20: rodless cylinder

30: arm

40: lifting cylinder

50: gripper

60: arm cylinder

70: stopper

100: storage cover

120: cover door

The present invention relates to a workpiece unloading apparatus of a machine, and in particular, since it is mounted inside the machine to perform an unloading operation, the workpiece is compared with a method of discharging the finished workpiece while transferring the outside and the inside of the machine as in the conventional gantry loader. The present invention relates to a workpiece unloading device of a machine that can shorten the discharge time and operate a high-efficiency machine at a low installation cost.

For example, in the case of turning lathes, there is a gantry loader for automatically discharging the machined workpiece from the spindle.

The gantry loader serves to load the workpiece into the stocker while transferring the left and right up and down to a stocker installed at the same time on the left or right side of the machine or on either side.

However, since the gantry loader is installed outside of the machine, when the unloading command falls, the transfer operation that takes place outside the machine takes a long time, and a high installation cost and an operation cost are required due to the control of the servomotor. In particular, when the stocker is located in the mechanical equipment, there are disadvantages such as limiting the installation space and the transfer operation of the turret.

Therefore, the present invention was created in view of the above general circumstances, and is mounted inside the machine to perform an unloading operation. Thus, a method of discharging the finished workpiece by transferring the outside and the inside of the machine as in the conventional gantry loader Compared to this, the object of the present invention is to provide a workpiece unloading device for a machine that can shorten a workpiece discharge time and provide an advantage of operating a high-efficiency machine at a low installation cost.

In order to achieve the above object,

In the workpiece unloading device for unloading the workpiece machined on the main spindle or subspindle of the machine,

A rodless cylinder disposed on an upper portion of the main body of the machine, the operating end of which moves forward and backward in a direction parallel to the spindle;

An arm pivotally connected to an operating end of the rodless cylinder;

A lifting cylinder which is connected to the end of the arm and moves the working end toward the workpiece held by the spindle when the arm is pivoted by a predetermined amount;

A gripper connected to an operating end of the lifting cylinder to hold a workpiece after the operating end of the lifting cylinder moves downward;

One end is hinged to the operating end of the rodless cylinder and the other end is connected to the arm to swing the arm so that the gripper includes an arm cylinder for positioning the workpiece above the workpiece.

In addition, according to the present invention, a stopper is further provided on the upper portion of the main body of the machine to limit the moving end of the rodless cylinder.

In addition, according to the present invention, a storage cover is provided at a position where the gripper is accommodated, and the inlet and outlet of the storage cover is arranged on one side of the gripper, characterized in that the opening and closing of the cover door to move up and down the door cylinder.

In addition, according to the present invention, a conveyor for discharging the workpiece is further provided below the storage position of the gripper.

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

1 is a front view showing a workpiece unloading apparatus according to the present invention, Figure 2 is a side view showing the operation of the workpiece unloading apparatus seen from one side of Figure 1, Figure 3 is a workpiece unloading apparatus seen from the other side of FIG. It is a side view which shows a standby state, and FIG. 4 is an enlarged view of the principal part of FIG.

1 and 2, in the workpiece unloading apparatus for unloading the workpiece processed in the main spindle 12 and the sub spindle 13 of the machine, the upper part of the machine body 10 The rodless cylinder 20 is disposed. The rodless cylinder 20 is provided such that the operating end moves forward and backward in a direction parallel to the spindle 12 axis.

An arm 30 having an approximately "a" shape is hinged to the hinge shaft 25 so as to be rotatable at an operation end of the rodless cylinder 20, and the arm 30 is pivoted by an arm cylinder 60. The action is to take place.

The arm cylinder 60 has its cylinder body hinged to the operating end of the rodless cylinder 20 via a bracket 62 and its operating end connected to the arm 30. Therefore, the arm cylinder 60 rotates the arm 30 so that the gripper 50 which will be described later is positioned above the workpiece W. FIG.

A lifting cylinder 40 is provided at the end of the arm 30. The lifting cylinder 40 functions to move the gripper 50 toward the workpiece bited by the spindle 12 when the arm 30 rotates by a predetermined amount.

Therefore, the operation end 42 of the lifting cylinder 40 is provided with a gripper 50 for holding the work after the operation end of the lifting cylinder 40 is lowered.

On the other hand, the stopper 70 may be further installed on the upper portion of the processing machine main body 10 to limit the moving position of the rod end cylinder 20. Therefore, the stopper 70 determines the rotational position of the arm 30 so that the position can be varied in accordance with the length of the workpiece.

On the other hand, one side in the processor body 10 is provided with a storage cover 100 to accommodate the gripper 50 in the standby state, the cover door 120 for opening and closing the entrance and exit (100a) of the storage cover 100 4 is disposed on one side of the gripper 50, the cover door 120 is to be moved up and down by the door cylinder 130 mounted in the protective enclosure (140). The protective enclosure 140 is mounted to the operating end 42 of the lifting cylinder 40.

Therefore, the cover door 120 includes a gripper 50 accommodated in the accommodating cover 100 in the standby state after discharging the workpiece to protect the lifting cylinder 40 with the cutting oil generated during cutting.

A lower portion of the storage cover 100 corresponding to the storage position of the gripper 50 may further include a workpiece discharge conveyor 200 for receiving the workpiece held by the gripper 50 and discharging the workpiece to the outside of the processing machine.

The operation of this embodiment configured as described above will be described.

First, when the workpiece W is processed on the main spindle 12 firstly and then on the sub spindle 13 secondly, the gripper 50 is placed on the receiving cover 100 to stand by, and the cover door ( 120 is lowered to protect the gripper 50 from the cutting oil or the like.

In this state, when the workpiece unloading instruction falls, the rodless cylinder 20 operates. The arm 30 is thus drawn by the operating end of the rodless cylinder 20 to move in a left direction parallel to the sub spindle 13.

At this time, the arm 30 completes the movement until the operating end of the rodless cylinder 20 is stopped by the stopper 70.

When the operation of the rodless cylinder 20 is completed as described above, the arm cylinder 60 is operated to rotate the arm 30 by a predetermined amount clockwise in FIG. 2. In this case, the lower side direction of the arm 30 faces the work W. FIG.

Thereafter, the lifting cylinder 40 is operated so that the gripper 50 is lowered toward the workpiece, and the workpiece is positioned in the gripper 50.

When the lowering of the gripper 50 is completed in this state, the gripper 50 is pinched and the workpiece is gripped by the gripper 50.

When the gripping operation of the gripper 50 is completed, an unclamp of the workpiece on the sub spindle 13 side is made, and the gripper 50 is lifted upward by a lift cylinder 40 by a predetermined amount and at the same time the cover door ( 120 moves down.

Next, the arm cylinder 60 rotates in the reverse motion, the rodless cylinder 20 moves back to the original position, the arm 30 moves to the storage cover 100, and the gripper 50 drops the gripped workpiece. Placed on the conveyor 200, the workpiece is discharged to the outside of the processing machine by the conveyor 200.

As a result, the gripper 50 lowers the workpiece on the conveyor 200 and waits for the next operation in the storage cover 100.

On the other hand, in the present invention, the following operation command is issued by the sensor for each operation mechanism, which is a well-known technical control method, and thus detailed description thereof will be omitted.

As described above, according to the present invention, since a servo motor, a stocker, or the like according to the use of a gantry loader is not required as in the related art, space inside the machine is not limited.

In addition, the cost of installation of the gantry loader is simpler than that of installation, which greatly reduces the installation cost.

The invention thus operated is more useful when two opposing spindles are provided. For example, one side of the workpiece may be machined on one spindle and then discharged after the machining of the workpiece on the other spindle is complete.

In this embodiment, but described as the operation for discharging the final workpiece in the sub spindle 13, the present invention can be discharged by the same configuration and operation of the workpiece primarily processed in the main spindle 12.

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, since the workpiece unloading device of the processing machine of the present invention is mounted inside the machine to perform an unloading operation, the workpiece is compared with a method of discharging the finished workpiece by transferring the outside and the inside of the machine as in the conventional gantry loader. The discharge time can be shortened.

In addition, it can provide the advantage of operating a high-efficiency equipment at a low installation cost, has the advantage of eliminating the limiting elements of the processing area by removing the stocker, etc. in the processing machine.

Claims (4)

In the workpiece unloading device for unloading the workpiece machined on the spindle 12 or 13 of the machine, A rodless cylinder 20 disposed on an upper portion of the main body of the machine 10, in which an operating end thereof moves forward and backward in parallel with the spindle 12; An arm 30 hinged to an operating end of the rodless cylinder 20 and rotatable; A lift cylinder 40 connected to the end of the arm 30, the arm 30 pivoting a predetermined amount when the arm 30 is pivoted by a predetermined amount toward the workpiece held by the spindle 12; A gripper 50 connected to an operation end of the lifting cylinder 40 to grip a workpiece after the operation end of the lifting cylinder 40 moves downward; An arm cylinder having one end hinged to the operating end of the rodless cylinder 20 and the other end connected to the arm 30 to pivot the arm 30 so that the gripper 50 is positioned above the workpiece. 60); A protective enclosure 140 mounted to the operation end 42 of the lifting cylinder 40; A door cylinder 130 embedded in the protective enclosure 140; An inlet and outlet (100a) is formed to accommodate the gripper (50), and a storage cover (100) installed on one side of the processor body (10); The cover door 120 is installed in the protective enclosure 140 to open and close the entrance / exit opening 100a of the storage cover 100, and is provided to move up and down by the door cylinder 130 embedded in the protective enclosure 140. The workpiece unloading device of the machine comprising a. The method of claim 1, The upper part of the machine main body (10) of the workpiece unloading device of the machine, characterized in that the stopper 70 is further installed to limit the movement position of the operating end of the rodless cylinder (20). delete The method of claim 1, The workpiece unloading device of the processing machine, characterized in that the gripper 50 is further provided with a conveyor 200 for discharging the workpiece.

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