KR0174922B1 - Automatic loader - Google Patents

Abstract

The present invention discloses an automatic workpiece changer.

The present invention is a conveyor system is provided with a supply line so that the workpiece is sequentially supplied to the processing machine, the discharge system is installed so that the processed product is completed by the operation of the processing machine sequentially discharged; First and second lifting means respectively installed on one side of the supply line and the discharge line such that the workpiece and the workpiece rise and fall to a predetermined height; Handling means for inverting the workpiece to be supplied to the set position in the supply line and for inverting the workpiece to be discharged from the set position to the discharge line; Positioning means for holding the workpiece supplied by the operation of the handling means in a set position; By the operation of the positioning means, the workpiece holding the set position is transferred to the machining position of the machine, and the workpiece includes chucking means for transferring the workpiece back to the positioning means.

Therefore, the supply and discharge of the workpieces and the workpieces are smoothly performed to maximize the operation rate, reduce the worker's fatigue and work preparation time, as well as reduce the investment cost of the equipment and enable economic operation.

In addition, the systematic work management and production management can be easily performed, thereby improving work flexibility and productivity.

Description

Automatic workpiece changer

1 is a plan view schematically showing an embodiment of an automatic workpiece feeder according to the present invention.

2 is a perspective view partially showing the automatic workpiece feeder according to the present invention.

3 is a plan view partially showing an automatic workpiece feeder according to the present invention;

4 is a front view partially showing an automatic workpiece feeder according to the present invention.

5 is a side view partially showing the automatic workpiece feeder according to the present invention.

6 is a partial cross-sectional view for explaining the first and second lifting means in the automatic workpiece feeder according to the present invention.

7 is a plan view showing the positioning means in the automatic workpiece feeder according to the present invention.

8 is an operating state of FIG.

9 is a cross-sectional view for explaining the positioning means in the automatic workpiece feeder according to the present invention.

10 is an operating state of FIG.

* Explanation of symbols for main parts of the drawings

10 Conveyor System 20 Supply Line

30: discharge line 40: air cylinder

42 holder 50 air cylinder

52: holder 60: hand

62, 63: gripper 70: transfer table

73: air cylinder 80, 81: guide block

82: guide rail 83: air cylinder

90: stopper 100: base

101: body frame 102, 103: joint plate

110: stand 111: holder

113: Post 115: Thrust Bearing

116: socket 121: sensor

130: movable plate 131: drive motor

132 disc 135 air cylinder

136: pivot 140: air chuck

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 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 the odometer. .

These head drums are each mounted with an upper drum and a lower drum fitted to one of the shafts to which one or more video heads are attached, and interposed between a rotor and a stator transformer.

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 in this way 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 process of washing the workpiece, the defective product is selected by visual inspection, and the workpiece of the upper drum is subjected to tape buffing processing, and then selectively hard carbon film coating treatment.

Through such a processing process, the workpieces of the upper and lower drums are manufactured into finished products, that is, processed 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 used numerical control machine (numerical control machine), which is widely used as an automated means to improve the operation rate (稼 動 率) have.

However, in a numerically controlled machine tool, when a worker directly handles the workpiece and manually supplies the workpiece, there is a high possibility that damage may occur on the surface of the workpiece.

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 managing several numerically controlled machine tools by one operator, the worker's fatigue is increased and work preparation time 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, so there is a problem that the productivity of the product is greatly 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, such an automatic tray changer has a problem of supplying or discharging mechanically so that the processing surface of the workpiece faces the direction in which processing is possible by the operation of the machine.

The present invention has been made in order to solve the conventional problems as described above, the object of the present invention is to smoothly supply and discharge the workpiece and the workpiece to maximize the operation rate, reducing the worker fatigue and work preparation time In addition, the investment cost of the equipment can be reduced, economical operation is possible, and systematic work management and production management can be easily performed, thereby providing an automatic workpiece changer that increases work flexibility and productivity.

A feature of the present invention for achieving the above object is a conveyor system is provided with a supply line so that the workpieces are sequentially supplied to the processing machine, the discharge line is installed so as to sequentially discharge the processed products are completed by the operation of the processing machine. and; First and second lifting means respectively installed on one side of the supply line and the discharge line to raise and lower the workpiece and the workpiece to a predetermined height; Handling means for inverting the workpiece from the supply line to the set position and for inverting the workpiece from the set position to the discharge line; Positioning means for holding the workpiece supplied by the operation of the handling means in a set position; An automatic workpiece changer comprising a chucking means for transferring a workpiece holding a set position by the operation of the positioning means to a machining position of the machine, the workpiece being transferred back from the machining position to the positioning means.

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

1 to 10 are diagrams for explaining the automatic workpiece changer according to the present invention.

First, an example of an automatic tray changer associated with an automatic workpiece changer according to the present invention will be 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.

Then, the work chamber 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 the workpiece W on the tray T. ) And re-mount the processed product W1 to be processed in the tray T.

As shown in FIG. 1, FIG. 2, and FIG. 3, a conveyor system 10 is installed 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 20 and the discharge line 30 are installed by a plurality of horizontal frames 13 installed parallel to each other. A base 15 is attached to the bottom surface of the bottom plate 11 so as to be adjacent to the processing machine M.

On the other hand, the supply line 20 of the conveyor system 10 is to supply the workpiece (W) from the automatic tray changer (ATC) to the processing machine (M), the workpiece (W) is placed on the supply line 20 and transported. Preferably, two belts 21 and 22 are mounted parallel to each other at some distance apart. The belts 21 and 22 are conveyed by the rotation of a plurality of rollers 24 which transmit the driving force of the driving motor 23.

On the outlet 20A side of the supply line 20, a pair of stoppers 25 and 26 having inclined surfaces 25a and 26a are mounted so that the transfer of the workpiece W is restricted, and the stoppers 25 and 26 are respectively mounted. Inclined surfaces 25a and 26a are formed in the supply direction of the workpiece W (arrow A direction).

At a position adjacent to the stoppers 25 and 26, a pair of sensors 27 and 28 for detecting the transfer completion state of the workpiece W are mounted.

The discharge line 30 of the conveyor system 10 discharges the processed product W1, which is completed by the operation of the processing machine M, from the processing machine M to the automatic tray changer ATC. Two belts 31 and 32 are mounted to 20 at parallel intervals apart from each other so that the workpiece W1 is lifted and transported. The belts 31 and 32 are conveyed by the rotation of the plurality of rollers 34 which transmit the driving force of the driving motor 33.

A pair of stoppers 35 and 36 having inclined surfaces 35a and 36a are respectively mounted on the outlet 30A side of the discharge line 30 so as to restrict the transfer of the workpiece W1, and the inclined surfaces of the stoppers 35 and 36, respectively. 35a and 36a are formed in the discharge direction (arrow B direction) of the workpiece | work W1.

A pair of sensors 37 and 38 for detecting the transfer completion state of the workpiece W1 are mounted at the adjacent positions of the stoppers 35 and 36.

Here, each of the sensors 27, 28, 37, 38 can be configured by using a general photo coupler composed of a light emitting portion and a light receiving portion. In addition, each of the sensors 27 and 28 (37, 38) may use a proximity sensor.

Such a conveyor system 10 is arranged in three directions so as to form an angle of 90 ° to each other at the automatic tray changer (ATC) side is associated with three processing machines (M), the processing machine (M) for finishing the workpiece (W) General numerical control machine tools are used.

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, and the boss Bo A regulation hole Ch for regulating the position on the outside is formed.

When finishing processing on such a workpiece (W), the workpiece (W1) is completed, hereinafter, the workpiece (W1) is the same as the basic form of the lower drum (LD) will be described with the same reference numerals. In addition, the code | symbol Wf means the process surface of the workpiece | work W and the workpiece | work W1.

The supply line 20 of the conveyor system 10 is provided with first lifting means such that the workpiece W moves up and down to a predetermined height in a position adjacent to the processing machine M.

As shown in FIG. 2 and FIG. 3 and FIG. 5 and FIG. 6, the first lifting means has an air cylinder 40 having a rod 41 on the bottom surface of the base 15. As shown in FIG. It is installed, the air cylinder 40 is installed to be located in the center of the supply line (20).

The rod 41 of the air cylinder 40 is equipped with a holder 42 such that the shaft hole Sh of the workpiece W is fitted at the end thereof, and the holder 42 is operated by the air cylinder 40. The workpiece W is raised and lowered by a predetermined height on the upper surfaces of the belts 21 and 22.

On the other hand, the discharge line 30 of the conveyor system 10 is provided with a second lifting means so that the workpiece (W1) in the adjacent position with the processing machine (M) is raised and lowered to a certain height.

Referring again to FIGS. 2 and 3, and FIGS. 5 and 6, the second lifting means is provided with an air cylinder 50 having a rod 51 on the lower surface of the base 15, Air cylinder 50 is installed to be located in the center of the discharge line (30).

The holder 52 is mounted on the rod 51 of the air cylinder 50 so that the shaft hole Sh of the workpiece W1 is fitted at the end thereof and the holder 52 is operated by the operation of the air cylinder 50. The workpiece W1 is lowered to the upper surfaces of the belts 31 and 32.

Here, the air cylinders 40 and 50 may raise and lower the holders 42 and 52 using a general solenoid.

In addition, it is preferable that the initial operating positions of the holders 42 and 52 are set to the lower portions of the belts 21 and 22 and 31 and 32, respectively.

At the adjacent positions of the first and second lifting means, the workpiece W is inverted so as to be supplied from the supply line 20 to the set position of the processing machine M, and the workpiece W1 is machined M. Handling means for inverting to be discharged to the discharge line (30) at the set position is provided.

As shown in Figs. 2 to 5, the handling means has a pair of grippers to selectively hold the workpiece W and the workpiece W1 on one side of the hand 60 by the operation of the air cylinder 61. (gripper: 62, 63) is mounted. The grippers 62 and 63 hold the workpiece W and the boss Bo of the workpiece W1.

A shaft 64 is mounted on one side of the hand 60, which shaft 64 is mounted to rotate in a housing 71 of a transfer table 70. The housing 71 is attached to the center of the transfer table 70, and a side panel 72 is attached to one side of the transfer table 70 at a predetermined distance from the housing 71.

In addition, one side of the side panel 72 is provided with an air cylinder 73 for rotating the hand 60 by a predetermined angle. The rod 74 of the air cylinder 73 is connected to the shaft 64 of the hand 60 by a coupler 75 and on the other side of the transfer table 70 a joint plate 76. Is attached.

By the operation of this air cylinder 73, the shaft 64 of the hand 60 is rotated about the housing 71, and the rotation angle of the hand 60 is about 180 degrees.

Here, the setting position of the processing machine (M) is a position for seating the workpiece (W) while the hand 60 is reversed, the initial operating position of the hand 60 is preferably set on the supply line 20 side. Do.

On the other hand, the conveying table 70 of the handling means further comprises a conveying means to selectively slide reciprocating between the supply line 20 and the discharge line 30 of the conveyor system 10.

Referring to FIGS. 2 to 5 again, guide blocks 80 and 81 are attached to both sides of the lower surface of the transfer table 70, respectively.

The guide blocks 80 and 81 are mounted to be guided along a guide rail 82, so that the guide rail 82 is parallel to one end of the supply and discharge lines 20 and 30 to each other. It is mounted on the upper surface of the base 15.

In addition, a rod 84 of the air cylinder 83 is connected to the end of the joint plate 76 assembled to the transfer table 70, and the air cylinder 83 is connected to the base 15 by brackets 85 and 86. It is firmly installed on the upper surface.

Here, the air cylinder 83 is equipped with a chair-type sensor (not shown), the transfer state of the transfer table 70 is detected by the operation of the chair-type sensor, the air cylinder 83 may use a general solenoid have.

One side of the guide rail 82 is fixedly mounted by the bracket 91 so that the stopper 90 abuts, and the stopper 90 restricts the transfer distance of the transfer table 70.

The workpiece W supplied inverted by the operation of the hand 60 constituting such a handling means is held in a set position by the operation of the positioning means.

As shown in FIGS. 2 and 7 to 10, the positioning means has a base 100 attached to one side of the processing machine M, and a body frame 101 on the upper surface of the base 100. Is installed, the joint plates 102 and 103 are attached to both sides of the body frame 101, respectively.

On the other hand, a stand (110) is installed in the central portion of the body frame 101 to vertically and elastically reciprocate and rotatable. The stand 100 includes a holder 111 into which the workpiece W and the shaft hole Sh of the workpiece W1 are fitted, and a thread 112 is formed on the bottom surface of the holder 111.

The threaded portion 112 of the holder 111 is fastened to an upper part of a post 113, and a connecting screw 114 is fastened to a lower part of the post 113, and a thrust bearing is attached to the connecting screw 114. 115 is mounted and supported on the lower surface of the post 113.

In addition, the connecting screw 114 is fitted to pass through the assembly hole 117 of the socket (116), the socket 116 is mounted in the fixing groove 104 formed in the body frame (101).

The adjusting screw 118 is fastened to the lower portion of the connecting screw 114, and a washer 119 is interposed between the connecting screw 114 and the adjusting screw 118, and one side of the washer 119 is a socket 116. In contact with the bottom of the to limit the overall height of the stand (110).

The spring 120 is interposed between the lower surface of the thrust bearing 115 and the upper surface of the socket 116, and the stand 110 is vertically elastically reciprocated by the elastic force of the spring 120. In addition, the stand 110 is to maintain a certain height by the action of the spring (120).

The sensor 121 is fixedly mounted by the bracket 122 so that the mounting state of the workpiece W and the workpiece W1 is detected on one side of the stand 110, and the sensor 121 uses a proximity sensor. It is desirable to.

In addition, a drive motor 131 having a disk 132 is mounted on one side of the movable plate 130 so that the workpiece W seated on the holder 111 of the stand 110 contacts and rotates.

The contact ring 133 of the elastic body is mounted on the outer circumferential surface of the disk 132 so as to contact the outer circumferential surface of the workpiece W, and the material of the contact ring 133 is preferably made of rubber.

Meanwhile, the movable plate 130 is installed to be rotatable about a hinge shaft 134 on one side of the joint plate 102 attached to the body frame 101.

A pivot 136 mounted at one end of the air cylinder 135 is connected to one side of the movable plate 130, and the other end of the air cylinder 135 is centered on the hinge axis 138 of the bracket 137. Is rotatably mounted, and the bracket 137 is attached to one end of the joint plate 103.

Here, the initial operating position of the movable plate 130 is preferably set so that the disk 132 is a predetermined distance away from the holder 111 of the stand 110, the air cylinder 135 is to use a common solenoid It may be.

The workpiece W holding the set position by the operation of the positioning means is transferred from the holder 111 of the stand 110 to the machining position of the processing machine M by the operation of the chucking means. In addition, the workpiece W1 is transferred from the machining position of the processing machine M to the holder 111 of the stand 110 by the operation of the chucking means.

As shown in FIG. 2, FIG. 9 and FIG. 10, the chucking means is selectively fitted to the restricting hole Ch of the workpiece W and the workpiece W1 on one side of the air chuck 140. FIG. The regulating pin 141 is mounted.

The operation state of the regulation pin 141 is sensed by the operation of the sensor 142, the regulation pin 141 is elastically vertically reciprocated by the elastic force of the spring 143.

Here, the initial operating position of the regulating pin 141 is set to protrude on the lower surface of the air chuck 140.

The air chuck 140 is reciprocated by the operation of the first air cylinder 144, the first air cylinder 144 is rotated within a predetermined angle by the operation of the second air cylinder 145.

In addition, the second air cylinder 145 rotates the first air cylinder 144 by about 180 °, and the first and second air cylinders 144 and 145 are a general conveying mechanism (not shown) of the processing machine M. It is transported while reciprocating to the machining position of the processing machine (M) by the operation of.

On the other hand, each of the air cylinder 40, 50, 61, 73, 83, 135 is given an air pressure by the operation of the pneumatic supply unit 150. The pneumatic supply unit 150 is equipped with a micro filter (151) for removing foreign matter in the air, and a pressure regulator 152 for maintaining a constant working pressure of the air to the micro filter (151).

The pressure regulator 152 is connected to a manifold unit 153 for adjusting the flow of air, and the pneumatic supply unit 150 is preferably installed on one side of the conveyor system 10. .

The piping line of the pneumatic supply unit 150 is composed of a wire (type) such as a tube (tube), hose (hose) or cable (cable) not shown.

In addition, the first and second air cylinders 144 and 145 are provided with air pressure by the operation of the pneumatic supply unit (not shown) of the processing machine M.

Referring to the operating state 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 transported to the supply line 20 of the conveyor system 10 by sequentially processing the workpiece (W) on the tray (T).

By repeatedly operating the robot 4, the workpiece W is placed on the belts 21 and 22 of the supply line 20, and the rollers 24 transmit the driving force of the driving motor 23. As the belts 21 and 22 are transferred, the workpiece W is sequentially supplied.

As shown in FIG. 2 and FIG. 3, when the workpiece | work W is conveyed to a supply direction (arrow A direction), the workpiece | work W is conveyed while contacting the inclined surfaces 25a and 26a of the stoppers 25 and 26. FIG. It is regulated and stopped, and this state is detected by the operation of the sensors 27 and 28.

On the other hand, when the transfer completion state of the workpiece (W) is detected by the operation of the sensor (27, 28), the holder 42 is raised and lowered by the operation of the air cylinder 40, thereby the shaft hole of the workpiece (W) Sh is lifted to the upper portions of the belts 21 and 22 while being seated in the holder 42. At this time, the processing surface Wf of the workpiece W maintains the state exposed on the upper part of the holder 42.

As shown in FIG. 5 and FIG. 6, when the workpiece W is raised and lowered to a certain height in this manner, the grippers 62 and 63 of the hand 60 are operated by the operation of the air cylinder 73. It will hold the boss (Bo) stably.

3 and 4, when the handling of the workpiece W is completed on the grippers 62 and 63 of the hand 60, the transfer table 70 is operated by the operation of the air cylinder 83. As shown in FIG. Guide blocks (80, 81) attached to the lower surface of the guide rail 82 is guided in the direction of the arrow C is transferred from the supply line 20 to the discharge line (30).

At this time, the transfer state of the transfer table 70 is detected by the operation of the external sensor mounted on the air cylinder 83, one side of the transfer table 70 is in contact with the stopper 90 of the transfer table 70 The travel distance is regulated.

In addition, when the transfer of the transfer table 70 is completed, the air cylinder 73 is operated to center the shaft 64 of the hand 60 connected to the rod 74 about the housing 71 of the transfer table 70. To rotate.

As shown in FIG. 5, the hand 60 is rotated in the direction of the arrow D to invert the workpiece W to be seated on the holder 111 of the stand 110.

That is, the shaft hole Sh of the workpiece W is fitted into the holder 111 to be seated, and this state is detected by the operation of the sensor 121. At this time, the processing surface (Wf) of the workpiece (W) maintains the state close to the upper surface of the holder 111 toward the lower direction.

As shown in FIGS. 2, 9, and 10, when the seating state of the workpiece W is detected by the operation of the sensor 121, the air chuck 140 is operated by the operation of the first air cylinder 140. ) Will be lowered vertically, whereby the air chuck 140 will chuck the workpiece (W).

In addition, when the regulation pin 141 of the air chuck 140 is not fitted into the regulation hole Ch of the workpiece W, this state is detected by the operation of the sensor 142. At this time, the regulation pin 141 is in contact with one surface of the workpiece (W) is operated in the upward direction.

Here, when a load is generated while the air chuck 140 chucks the workpiece W, the stand is driven by the action of the spring 120 interposed between the lower surface of the thrust bearing 115 and the upper surface of the socket 116. Since the 110 is reciprocated vertically and elastically, it absorbs the load applied to the workpiece (W).

Accordingly, the workpiece W is stably seated on the holder 111 of the stand 110.

Meanwhile, as shown in FIGS. 7 and 8, when the air cylinder 135 is operated by the detection of the sensor 143, the movable plate 130 is centered on the hinge shaft 134 of the joint plate 102. By a predetermined angle in the direction of the arrow E.

At this time, since one end of the air cylinder 135 is connected by the movable plate 130 and the pivot 136 and pivoted, the movable plate 130 is naturally rotated about the hinge shaft 136.

In addition, the other end of the air cylinder 135 is rotated by an angle about the hinge axis 138 of the bracket 137 attached to the joint plate 103, so that the load generated during operation of the air cylinder 135 Reduced.

When the contact ring 133 of the disk 132 is in contact with the outer circumferential surface of the workpiece (W) by the rotation of the movable plate 130, the disk 132 is rotated by the driving force of the drive motor 131 holder ( The workpiece W seated on the 111 is rotated.

Here, the contact ring 133 is elastically in contact with the outer circumferential surface of the workpiece (W), so that the surface of the workpiece (W) can be easily prevented, and at the same time to maintain the rotation state of the workpiece (W) more naturally. do.

In addition, when a load is generated while the workpiece W is rotated, the stand 110 is naturally rotated by the action of the thrust bearing 115 supported on the lower surface of the post 113, thereby absorbing the load. The rotation state of W) is more stably maintained.

Then, when the workpiece W is rotated and the position of the regulation hole Ch coincides with the regulation pin 141 of the air chuck 140, the regulation pin 141 is provided with the elastic force of the spring 143 to its original state. As it returns, it is fitted into the regulation hole Ch of the workpiece W.

Such a state is sensed by the operation of the sensor 142 and the driving of the driving motor 131 is stopped, and the movable plate 130 is returned to its original state by the operation of the air cylinder 135.

When the return of the movable plate 130 is completed, the air chuck 140 completely chucks the workpiece W, and the workpiece W is operated by the operation of the first and second air cylinders 144 and 145. It is transferred to the machining position of the processing machine M, and the process surface Wf of the workpiece | work W is turned by the operation of the processing machine M. FIG.

As shown in FIG. 2, FIG. 9 and FIG. 10, the workpiece W1 which has been processed by the operation of the processing machine M stands by the operation of the first and second air cylinders 144 and 145. FIG. It is seated on the holder 111 of the 110 again, the seating state of the workpiece (W1) is sensed by the operation of the sensor 121.

Here, when a load is generated while the air chuck 140 seats the workpiece W1 in a handled state on the holder 52, the stand 110 is vertically elastically reciprocated by the action of the spring 120. Therefore, the load applied to the workpiece W1 is absorbed. Accordingly, the workpiece W1 is stably seated on the holder 111 of the stand 110.

In addition, when the seating state of the workpiece W1 is sensed by the operation of the sensor 121, the air chuck 140 releases the chucking state of the workpiece W1, and the air chuck 140 has a first air cylinder ( By the operation of 144).

The gripper 62 or 63 of the hand 60 is gripped by the boss Bo of the workpiece W1 seated on the holder 111 of the stand 110 by the operation of the air cylinder 73. .

As shown in FIG. 5, when handling of the workpiece W is completed to the grippers 62 and 63 of the hand 60, the air cylinder 73 is activated to operate the hand 60 connected to the rod 74. The shaft 64 is rotated about the housing 71 of the transfer table 70.

By this operation, the hand 60 rotates in the opposite direction to the arrow D, thereby inverting the workpiece W1. When the rotation of the hand 60 is stopped, the holder 52 is operated by the operation of the air cylinder 50. It is elevated.

5 and 6, the gripper 62, 63 causes the handling state of the workpiece W1 to be released by the operation of the air cylinder 61 in the state where the holder 52 is raised and lowered. Then, the shaft hole Sh of the workpiece W1 is fitted into the holder 52 and seated.

In addition, as shown in FIG. 2, while the holder 52 is returned to its original state by the operation of the air cylinder 50, the workpiece W1 is placed on the belts 31 and 32 of the discharge line 30, The belts 31 and 32 are transferred by the rollers 34 receiving the driving force of the driving motor 33 to discharge the workpiece W1.

Subsequently, as shown in FIG. 1, when the workpiece W is conveyed in the discharge direction (arrow B direction), the workpiece W1 is in contact with the inclined surfaces 35a and 36a of the stoppers 35 and 36, so that the transfer is performed. It is regulated and stopped, and this condition is detected by the operation of the sensors 37 and 38.

As such, when the transfer completion state of the workpiece W1 is detected by the operation of the sensors 37 and 38, the workpiece W1 is disposed in the tray at the discharge line 30 of the conveyor system 10 by the operation of the robot 4. It is mounted in the original position again at (T).

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 automatic workpiece changer to continuously process the workpiece (W).

On the other hand, in the automatic workpiece changer according to the present invention, one automatic tray changer (ATC) and three processing machines (M) are connected in three directions by the conveyor system (10), whereby the workpiece (W) and the workpiece (W1) Supply and discharge is performed smoothly to maximize the operation rate of the processing machine (M), and the mechanical configuration is simplified to eliminate the main cause of the failure.

In addition, the installation space of the conveyor system 10 and the processing machine M is greatly reduced, thereby making it possible to efficiently utilize the equipment, and at the same time, the investment cost of the equipment is reduced and economical operation is possible.

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

In addition, even when an abnormality occurs in one conveyor system 10 and the processing machine M, the operation of the remaining conveyor system 10 and the processing machine M is maintained so that systematic work management and production management can be easily performed. . As a result, the flexibility of the work is secured and the productivity of the product is improved.

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 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, reduce the worker's fatigue and work preparation time, and reduce the investment cost of the equipment. Economic operation is possible.

In addition, systematic work management and production management can be easily performed, thereby improving work flexibility and productivity.

Claims (5)

Supply line 20 is installed so that the workpiece (W) is sequentially supplied to the processing machine (M), the discharge line 30 so that the processed product (W1) that is completed by the operation of the processing machine (M) is sequentially discharged. Is installed, the conveyor system 10 is arranged in three directions to form an angle of 90 ° from each other on the automatic tray chaser (ATC) side and associated with three processing machines (M); First and second lifting means installed on one side of the supply line 20 and the discharge line 30 so that the workpiece W and the workpiece W1 are raised and lowered to a predetermined height; Handling means for inverting the workpiece (W) to be supplied to the set position in the supply line (20), and for inverting the workpiece (W1) to be discharged to the discharge line (30) at the set position; Positioning means for holding the workpiece (W) supplied by the operation of the handling means in a set position; By the operation of the positioning means, the workpiece (W) holding the set position is transferred to the machining position of the machine (M), the workpiece (M) includes a chucking means for transferring back to the positioning means from the machining position Workpiece changer made. 2. The apparatus according to claim 1, wherein said handling means comprises: a hand (60) having grippers (62, 63) for selectively holding said workpiece (W) and workpiece (W1) by operation of an air cylinder (61); An automatic workpiece changer having a transfer table (70) on which an air cylinder (73) for rotating the hand (60) by an angle is installed. 3. The guide according to claim 1 or 2, wherein the handling means are guides attached to both sides of the lower surface of the transfer table 70 as a transfer means for selectively reciprocating the slide between the supply line 20 and the discharge line 30. Blocks 80 and 81, guide rails 82 mounted on the upper surface of the base 15 to guide the guide blocks 80 and 81, and joint plates 76 assembled to one side of the transfer table 70. And an air cylinder (83) to which the rod (84) is connected. The body frame 101 according to claim 1, wherein the positioning means is provided on an upper surface of the base 100 attached to one side of the processing machine M, and joint plates 102 and 103 are attached to both sides thereof. and; A stand (110) on which the workpiece (W) and the workpiece (W1) are seated and installed to elastically reciprocate vertically in the center of the body frame (101); A drive motor 131 having a disk 132 is mounted to contact and rotate the workpiece W seated on the stand 110, and rotate about a hinge shaft 134 on one side of the joint plate 102. Automatic workpiece changer having a movable plate (130) installed to be possible. The control pin according to claim 1, wherein the chucking means is provided with a regulation pin 141 which is elastically operated so as to be fitted into the regulation hole Ch formed in the workpiece W and the workpiece W1. An air chuck 140 having a sensor 142 for detecting an operating state of the sensor; A first air cylinder 144 for vertically reciprocating the air chuck 140; And a second air cylinder (145) for rotating the first air cylinder (144) within a predetermined angle.