KR0154004B1 - System for swivelling an automatic loader - Google Patents

Abstract

The present invention discloses a swivel device of an automatic workpiece changer.

The present invention provides an automatic workpiece changer for supplying a workpiece conveyed to a supply line of a conveyor system to a positioner of a processing machine by an operation of a handling means, and discharging a workpiece to be processed by an operation of a processing machine to a discharge line of a conveyor system. A body frame installed at an upper surface of the base installed at one side of the processing machine, and having a joint plate attached to both sides thereof; A movable motor having a disk mounted thereon so that the workpiece seated on the positioner is rotated in contact with the workpiece, the movable plate being rotatable about a hinge axis on one side of the joint plate; A pivot connected to one end of the movable plate is mounted at one end and includes an air cylinder connected at the other end to a hinge axis of the bracket attached to one end of the joint plate.

Therefore, since the set position of the workpiece is accurately maintained by a simple mechanical configuration, the supply and discharge of the workpiece and the workpiece are smoothly performed to maximize the operation rate.

In addition, the worker's fatigue and work preparation time are reduced, and work and production management can be easily performed, thereby improving work flexibility and productivity.

Description

Swivel device of automatic workpiece changer

1 is a plan view schematically showing an embodiment of an automatic workpiece feeder to which a swivel device according to the present invention is applied;

2 is a perspective view partially showing an automatic workpiece feeder to which a swivel device according to the invention is applied;

3 is a plan view illustrating the swivel device according to the present invention.

4 is an operating state of FIG.

5 is a front view showing for explaining a swivel device according to the present invention.

* Explanation of symbols for main parts of the drawings

10 conveyor system 14 supply line

15: discharge line 21: hand

22,23 gripper 24 transfer table

30: base 31: body frame

33,34: joint plate 35: positioner

37: Air Chuck 38: Regulator Pin

40: movable plate 41: drive motor

42: disk 44: hinge axis

50: air cylinder 52: pivot

53 Bracket 54 Hinge Shaft

ATC: Automatic Tray Changer T: Tray

W: Workpiece W1: Workpiece

LD: Lower Drum M: Machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swivel device of an automatic loader in which a workpiece such as a lower drum of a head drum is continuously fed to each processing machine.

In general, the head drum of a tape recorder such as a video cassette recorder or a camcorder is to reproduce or record a video and audio signal recorded on a tape traveling along a certain driving path of a traveling system. .

The head drum is mounted with an upper drum and a lower drum on which one or more video heads are attached, and a rotor and a stator transformer are interposed therebetween.

In addition, a drum motor is installed below the lower drum, and the upper drum is rotated according to the driving of the drum motor to perform a playback or recording function by the video head.

One example of the processing steps of the upper and lower drums constituting the head drum will be described.

When the upper and lower drums are cast by die casting, they are placed in a workpiece, ie blank, which must be machined.

The workpieces of the upper and lower drums machine the surface by roughing, and perform hole processing by drilling and tapping them.

In addition, the workpiece after the hole processing is completed to remove foreign substances such as cutting oil or oil contaminated on the surface through a washing process after finishing finishing (仕 上 加工).

In addition, after the washing process of the workpiece, the defective product is sorted out through the external inspection, and the workpiece of the upper drum is subjected to tape buffing processing, and then selectively hard carbon film coating treatment.

Through this processing process, the workpieces of the upper and lower drums are manufactured as finished products and supplied to the assembly line of the head drum.

By the way, the machine for roughing, hole and finishing machining of the workpiece is mainly a numerical control machine (numerical control machine) is used, which is widely used as an automation means to improve the operation rate (稼 動 率) have.

However, in the numerically controlled machine tool, since the worker has to handle the workpiece directly and manually supply the workpiece, there is a high possibility that the workpiece may be damaged.

Furthermore, since the machining time of the numerically controlled machine tool is relatively long in the finishing process of the workpiece, by supplying the workpiece while one operator manages three numerically controlled machine tools, the worker's fatigue increases and the preparation time for the work is delayed. There is a problem that the worker is fixedly placed and the operation of manpower is inefficient. In addition, the systematic work management and production management of the numerical control machine tool is difficult, there is a problem that the productivity of the product is reduced.

On the other hand, in an automated line employing a numerically controlled machine tool, a robot is used so that the supply of the workpiece is continuously performed to the numerically controlled machine tool.

However, when one robot is in charge of several numerically controlled machine tools in the finishing machining process which requires a long processing time, efficient operation of the robot is difficult and a lot of time and place are unnecessary for loading and transporting the workpiece.

In order to solve this problem, an automatic tray changer for continuously supplying a workpiece to a machine installed in units is used.

One example of such an automatic tray changer is disclosed in Patent Application No. 95-12331. The automatic tray changer continuously inputs and discharges a tray carried by a truck, and is mounted on the tray. The workpieces of the upper and lower drums are sequentially supplied to the respective machines by the operation of the robot.

However, since the automatic tray changer must be supplied to each processing machine so that the direction of the processing material is directed toward the processing surface, the automatic tray changer supplies the processing machine to the processing machine or discharges the processing work completed by the operation of the automatic processing machine changer.

However, this automatic workpiece feeder has a problem that the set position of the workpiece is maintained accurately and mechanically seated in the positioner.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is that the set position of the workpiece is accurately maintained by a simple mechanical configuration, the supply and discharge of the workpiece is performed smoothly, the operation rate This is to provide a swivel device of an automatic workpiece changer that maximizes, reduces worker fatigue and work preparation time, and facilitates work and production management, thereby improving work flexibility and productivity.

A feature of the present invention for achieving the above object is to supply a workpiece conveyed to the supply line of the conveyor system to the positioner of the machine by the operation of the handling means, the workpiece is processed by the operation of the machine is completed conveyor system An automatic workpiece exchanger for discharging to a discharge line, the apparatus comprising: a body frame installed at an upper surface of a base installed at one side of the processing machine, and having joint plates attached to both sides thereof; A movable plate mounted with a drive motor having a disk such that the workpiece seated on the positioner is rotated in contact with the workpiece, the movable plate being rotatable about a hinge axis on one side of the joint plate; A pivot connected to one end of the movable plate is mounted on one end, and is in a swivel device of an automatic workpiece changer comprising an air cylinder connected to the hinge shaft of the bracket attached to one end of the joint plate, the other end thereof.

A more preferable feature of the swivel device of such an automatic workpiece changer is that the outer ring of the disk is equipped with an elastic contact ring in contact with the outer circumferential surface of the workpiece.

Hereinafter, one preferred embodiment of the swivel device of the automatic workpiece changer according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 5 are views for explaining the swivel device of the automatic workpiece changer according to the present invention.

First, an example of the automatic tray changer applied to the swivel device of the automatic workpiece changer according to the present invention will be schematically described with reference to FIG.

The automatic tray changer (ATC) is a tray (T) on which the workpiece (W) is mounted on the lower part of the cabinet (1) is stacked and the input chamber (2) to be sequentially input and the tray (T) is sequentially discharged The discharge chamber 3 is partitioned.

In addition, a work room 4 in which the robot 5 is installed is divided into the input chamber 2 and the discharge chamber 3, and the robot 5 handles and supplies the workpiece W on the tray T. Or mount the workpiece W1 on which the processing is completed again to the tray T.

As shown in Figs. 1 and 2, a conveyor system 10 is provided on the back of the automatic tray changer ATC. In the conveyor system 10, a bottom plate 11 is supported by a plurality of post frames 12 and installed at a predetermined height.

The bottom plate 11 of the conveyor system 10 is partitioned on both sides such that the supply line 14 and the discharge line 15 are installed by a plurality of horizontal frames 13 installed parallel to each other.

At this time, the supply line 14 of the conveyor system 10 supplies the workpiece (W) from the automatic tray changer (ATC) to the processing machine (M), the discharge line 15 is processed by the operation of the processing machine (M). The finished workpiece WA is discharged from the processing machine M to the automatic tray changer ATC.

In addition, a base 20 is attached to the bottom surface of the bottom plate 11 so as to be adjacent to the processing machine M. FIG. The upper portion of the base 20 is inverted so that the workpiece (W) is supplied from the supply line 14 to the set position of the processing machine (M), the inverted so that the workpiece (W1) is discharged to the discharge line 15 from the set position of the machine. Handling means is provided.

The handling means is equipped with a pair of grippers 22 and 23 to selectively hold the workpiece W and the workpiece W1 on one side of the hand 21, and the hand 21 is provided with a transfer table (移送 table: The workpiece W or the workpiece W1 is reversed while being rotated at an angle by the operation of the air cylinder 25 installed on one side of the table 24.

Here, the setting position of the processing machine (M) is a position for seating the workpiece (W) while the hand 21 is inverted, the transfer table 24 is supplied to the conveyor system 10 by the operation of the general transfer device An optional slide reciprocating between the line 14 and the discharge line 15.

At this time, the conveying device is generally composed of a guide block and a rail and an air cylinder.

On the other hand, the workpiece W is a lower drum LD constituting a general head drum, and a boss Bo having a shaft hole Sh is formed in the center of the lower drum LD.

When the finishing process is performed on the workpiece W, the workpiece W1 is completed. Hereinafter, the workpiece W1 is configured in the same manner as the basic shape of the lower drum LD, and thus, the same reference numerals will be used. In addition, code | symbol Wf is a process surface (the workpiece W and the workpiece W1).

加工 面) says.

As shown in Figs. 2 and 3, the workpiece W, which is inverted by the operation of the hand 21 and supplied to the setting position of the processing machine M, must maintain its set position. The base 30 is installed on one side.

In addition, a body frame 31 is installed on the upper surface of the base 30 by fastening the screws 32, and joint plates 33 and 34 are not shown on both sides of the body frame 31. Are attached by tightening screws.

On the other hand, a positioner 35 is installed at the center of the body frame 31 so as to allow reciprocation and rotational movement, and the positioner 35 is mounted with a holder 36 and a holder 36 of the positioner 35. ) Is fitted with the shaft hole Sh of the workpiece W and the workpiece W1.

In this way, the workpiece W seated on the holder 36 of the positioner 35 is chucked by the operation of the air chuck 37 and transferred to the machining position of the processing machine M.

In addition, the workpiece W1 which is processed by the operation of the processing machine M is seated on the holder 36 of the positioner 35 from the processing position of the processing machine M by the operation of the air chuck 37.

On one side of the air chuck 37, the regulating pin 38 is mounted to reciprocate vertically and elastically, and the regulating pin 38 is selectively fitted into the regulation hole Ch of the workpiece W and the workpiece W1. You lose.

Then, the operation state of the regulation pin 38 is sensed by the operation of the sensor 39, the initial operation position of the regulation pin 38 is set to a state protruding on the lower surface of the air chuck 37.

Here, the air chuck 37 performs reciprocating motion and rotational motion by general air cylinders.

As shown in FIGS. 2 and 3 to 5, a movable plate 40 is provided at an adjacent position of the body frame 31.

One side of the movable plate 40 is mounted with a drive motor 41 having a disk 42 so that the workpiece W seated on the holder 36 of the positioner 35 contacts and selectively rotates.

On the outer circumferential surface of the disk 42, an adhesion ring 43 of an elastic body is mounted so as to be in contact with the outer circumferential surface of the workpiece W, and the material of the adhesion ring 43 is preferably made of rubber. .

On the other hand, the movable plate 40 is installed to be rotatable about a hinge shaft 44 on one side of the joint plate 33 attached to the body frame 31.

An air cylinder 50 is mounted on one of the movable plates 40. That is, a pivot 52 is attached to one end of a rod 51 constituting the air cylinder 50, and the pivot 52 is connected to one side of the movable plate 40.

In addition, the other end of the air cylinder 50 is mounted to be rotatable about the hinge axis 54 of the bracket (53), the bracket 53 is a screw 55 at one end of the joint plate (34) Are attached by fastening them.

Here, the initial operating position of the movable plate 40 is preferably set such that the disk 42 is separated from the holder 36 of the positioner 35 by a predetermined distance, and the air cylinder 50 is a general solenoid. ) Can also be used.

Referring to the operating state of the swivel device of the automatic workpiece changer according to the present invention as described above are as follows.

As shown in FIG. 1, when the tray T on which the workpiece W is mounted is supplied to the input chamber 1 of the automatic tray changer ATC and transferred to the work chamber 5, the robot of the work chamber 5 ( 4) is sequentially conveyed to the supply line 14 of the conveyor system 10 by handling the workpiece (W) on the tray (T).

As shown in FIG. 2, by the repeated operation of the robot 4, the workpiece W is supplied along the supply line 14 to the machine M side, and the grippers 22, 23 of the hand 21 are provided. ) Is to hold the boss (Bo) of the workpiece (W).

When the handling of the workpiece W is completed on the grippers 22 and 23 of the hand 21, the transfer table 24 is transferred from the supply line 14 to the discharge line 15 side by the operation of the transfer device. .

In addition, as shown in FIG. 3, when the transfer of the transfer table 24 is completed, the air cylinder 25 is operated to rotate the hand 21 by an angle.

By this operation, the hand 21 inverts the workpiece W and rests on the holder 36 of the positioner 35.

As shown in FIGS. 4 and 5, when the workpiece W is completely seated in the holder 36 of the positioner 35, the air chuck 37 is vertically lowered to chuck the workpiece W. FIG. .

On the other hand, when the restricting pin 38 of the air chuck 37 is not fitted into the restricting hole Ch of the workpiece W, this state is detected by the operation of the sensor 39. At this time, the regulating pin 38 is in contact with one surface of the workpiece (W) is operated in the upward direction.

As described above, in the state where the restricting pin 38 of the air chuck 37 is not fitted into the restricting hole Ch of the workpiece W, the air cylinder 50 is operated by the detection of the sensor 39.

As a result, the movable plate 40 is rotated at an angle in the direction of the arrow A about the hinge shaft 44 of the joint plate 33.

At this time, since the end of the rod 51 of the air cylinder 50 is pivoted by the movable plate 40 and the pivot 52, the movable plate 40 is stable and naturally around the hinge shaft 44. Is rotated.

In addition, since the other end of the air cylinder 50 is rotated by an angle about the hinge shaft 54 of the bracket 53 attached to the joint plate 34, the load generated during operation of the air cylinder 50 Reduced.

When the contact ring 43 of the disk 42 contacts the outer circumferential surface of the workpiece W by the rotation of the movable plate 40, the disk 42 is rotated by the driving force of the driving motor 41 and the holder ( The workpiece W seated in 36 is rotated.

At this time, the contact ring 43 is elastically in contact with the outer circumferential surface of the workpiece (W), thereby preventing the damage of the surface of the workpiece (W), it is possible to maintain the rotation state of the workpiece (W) more naturally.

And, as shown in Fig. 5, when the workpiece W is rotated and the position of the regulation hole Ch coincides with the regulation pin 38 of the air chuck 37, the regulation pin 38 is elastically in its original state. While returning to the fitting hole (Ch) is fitted, thereby the position of the workpiece (W) is accurately determined.

This state is sensed by the operation of the sensor 39, the driving of the drive motor 41 is stopped, the air chuck 37 is completely chucked the workpiece (W) to transfer to the machining position of the processing machine (M). The machining surface Wf of the workpiece W transferred to the machining position of the machining machine M is turned.

In this way, the workpiece W1 processed by the operation of the processing machine M is again mounted on the holder 36 of the positioner 35 by the operation of the air chuck 37.

On the other hand, when the chucking state of the workpiece W1 is released by the operation of the air chuck 37, the air chuck 37 is lifted vertically and returned to its original state, and the boss Bo of the workpiece W1 is the hand ( The grippers 22 and 23 are held by the operation of 21.

Subsequently, when handling of the workpiece W is completed to the grippers 22 and 23 of the hand 21, the workpiece 21 is rotated by an angle by the operation of the air cylinder 25 to reverse the workpiece W1. The discharge line 15 of the conveyor system 10 is discharged.

In addition, the workpiece W1 discharged through the discharge line 15 of the conveyor system 10 is mounted on the tray T again by the operation of the robot 5.

When the workpiece W1 is sequentially mounted on the tray T, the tray T is transferred from the working room 5 to the discharge chamber 3 and discharged to the outside of the automatic tray changer ATC.

In this way, the automatic tray changer (ATC) and the processing machine (M) are linked by the swivel device of the automatic workpiece changer to continuously process the workpiece (W).

Further, in the swivel device of the automatic workpiece changer according to the present invention, since the setting posture of the workpiece W is easily and accurately maintained, supply and discharge of the workpiece W and the workpiece W1 are performed smoothly so that the processing machine M Operation rate is maximized, and the mechanical configuration is simplified to reduce the equipment and operating cost of the workpiece changer and to eliminate the main cause of the failure.

In addition, since the operator does not need to handle the workpiece (W) and workpiece (W1) directly, damage of the workpiece (M) and workpiece (W1) is prevented to reduce the defective rate of the product, the operator fatigue and work preparation time This is greatly reduced.

In addition, the work management and production management of the automatic workpiece changer can be easily performed, thereby ensuring the flexibility of the work and the productivity of the product.

On the other hand, the above embodiment is merely to describe the preferred embodiment of the present invention, the scope of the present invention is not limited to such, and can be changed appropriately within the scope of the same thought, for example, processing of the workpiece In addition, it is widely applicable to the transport and packaging system of various logistics.

As described above, according to the swivel device of the automatic workpiece changer according to the present invention, the supply and discharge of the workpiece and the workpiece are smoothly performed to maximize the operation rate, and reduce the worker's fatigue and preparation time, as well as work and production. It is easy to manage, increasing work flexibility and productivity.

Claims (2)

In the automatic workpiece changer for supplying the workpiece conveyed to the supply line of the conveyor system to the positioner of the processing machine by the operation of the handling means, and discharges the finished workpiece to the discharge line of the conveyor system by the operation of the processing machine, A body frame 31 provided on an upper surface of the base 30 provided on one side of the processing machine M, and to which joint plates 33 and 34 are respectively attached; A drive motor 41 having a disk 42 is mounted to contact and rotate the workpiece W seated on the positioner 35, and rotate about a hinge shaft 44 on one side of the joint plate 33. A movable plate 40 installed to be possible; A pivot 52 connected to one side of the movable plate 40 is mounted to one end of the rod 51 and the other to the hinge shaft 54 of the bracket 53 attached to one end of the joint plate 34. Swivel device of the automatic workpiece changer comprising an air cylinder (50) connected to the end. 2. The swivel device of an automatic workpiece changer according to claim 1, wherein the outer ring of the disk (42) is mounted with a contact ring (43) of an elastic body in contact with the outer circumferential surface of the workpiece (W).