JPH0741709Y2 - Carrier - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a transfer device, and more particularly to a transfer device for converting a posture of a work from a transfer device such as a conveyor and further correcting the direction to send the work to a machine tool. Regarding

[Conventional technology]

Conveying device for moving a work with a certain reference, for example, a work having irregularities engraved on the outer periphery, into and out of the next assembly line or machine tool by changing its posture and correcting the direction In general, the posture changing device and the direction correcting device are provided separately from the carrying device, for example, on the assembly line or the machine tool side.

[Problems to be solved by the invention]

However, the conventional technique is complicated since the work is sent from the transfer device to the assembly line or the machine tool side by the loading device, and then the posture of the work is changed by a special device, and the direction of the work is further corrected. The problem of long transportation time is generated, and it cannot be said that it has a great effect on productivity improvement when the processing time requires a short cycle.

The present invention has been proposed in view of the above circumstances, and it is an object of the present invention to provide a transfer device that can change the posture of a work at the same place, correct the direction, shorten the transfer time, and improve the productivity. And

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention has a conveyor which circulates in an infinite band shape in a body having a base, in a horizontal state in which a disc-shaped work is oriented with its axial direction facing upward. At the transfer end end position of the conveyor, the workpieces that are continuously transferred on the conveyor are posture-converted from a horizontal posture to another posture, and the workpieces are rotated in the circumferential direction to have a predetermined circumferential direction. And a work container which is arranged at the transfer end position of the conveyor of the base and receives and stores the works transferred one by one from the conveyor, and the work container. A pivot shaft that is pivotally supported and is rotatable to change the posture of the workpiece container that receives the workpiece to another posture, and one end of the pivot shaft or the workpiece container,
A work posture changing device configured to change the posture of the work, the other end being connected to the base and configured by a first drive body that rotates the work storage body by using the turning shaft as a spindle. An engaging portion is provided on the body so as to be movable in a tangential direction of a circumferential portion of the work, and an engaging portion that engages with an engaged portion formed on the circumferential portion of the work stored in the work storage body is formed. An engaging member, a second driving body that drives the engaging member in the moving direction, and a detection unit that detects whether or not the circumferential correction of the work is completed, and the circle of the work is formed. A work posture correcting device that corrects the circumferential direction to a predetermined position, and is capable of performing a work posture changing operation and a work posture correcting operation of a work stored in the work storage body substantially simultaneously or continuously. And the transport device It was.

[Action]

The work carried by another carrying means is sent to the work posture changing device while the flow is adjusted on the conveyor by the work flow adjusting device. When the work storage body receives the work, the first drive body turns the turning shaft to change the posture of the work storage body to another posture. Almost at the same time or continuously with this conversion operation, the engaging member is driven in the moving direction by the second driving body and engages with the engaged portion formed on the circumferential portion of the work to start the posture correcting operation. The process is repeated until the detection means detects that the correction of the work in the circumferential direction is completed. When the work posture correcting operation is completed, the work is delivered to a loading device or the like.

〔Example〕

An embodiment of the present invention will be described below in detail with reference to the drawings.

First, a general description will be given with reference to FIGS.

The carrying device of the present invention can be used in various forms, but in the embodiment, the posture of the work W is converted to the machine tool M, further corrected and delivered.

M is a machine tool having a chuck C and the like. A robot R is arranged on the side surface of the machine tool M.

The transport device 1 includes a caterpillar-shaped conveyor 11 that is provided on a base 10 and circulates from a transport start position to a transport end position.
The drive source motor 12 that circulates the conveyor 11, the work flow adjusting device 2 that adjusts the flow of the works W on the conveyor 11 and transfers the works one by one to the next process, and the work that has been conveyed in the horizontal direction. A work posture changing device 3 that changes the posture in the vertical direction, and a work posture correcting device 4 that further corrects the direction of the work in the circumferential direction and transfers the work to the loading device.
Etc.

The caterpillar-shaped conveyor 11 is usually used, and the rotation of the motor 12 as a drive source mounted on the side surface of the body 13 and the drive sprocket connected to the motor spindle.
It is circulated by a chain 16 and the like which are wound between 14 and a driven sprocket 15.

A workpiece (eg, bevel gear) W that was previously processed in the previous process
Is sent from another transport device onto the caterpillar conveyor 11 of this transport device 1. The work W is mounted on the side of the caterpillar-shaped conveyor 11 on the upper side of the body 13 by a bracket 18
By moving the cylinder rod of the work flow adjusting device 2 provided via the work flow adjusting device 2, it is transferred to the work posture changing device 3 while the transfer is adjusted according to the machining status of the machine tool M.

When the work W sent in the horizontal direction has its posture changed in the vertical direction by the work posture changing device 3, the work posture correcting device 4 corrects the orientation of the work in the circumferential direction, and the robot R as a loading device. It is handed over to the robot side by the arm's transfer or back-and-forth movement. The work W is further transferred to the machine tool M, gripped by the chuck C, and subjected to predetermined processing. The chuck C has an inner surface that engages with the blade of a bevel gear, which is a workpiece, and can firmly and firmly support it.

Next, the work posture changing device 3 and the work posture correcting device 4 will be described with reference to FIGS. 2 (a), (b) and (c).

The work posture conversion device 3 includes the body 13 at the work transfer end position.
It is provided at the end portion and receives the work W flowing in the horizontal direction on the conveyor 11 to change the attitude from a horizontal attitude to another attitude, for example, a vertical attitude. The work posture correction device 4 corrects the direction of the blade of the bevel gear, which is the work, in the circumferential direction so that the work W received by the work posture conversion device 3 is engaged with the chuck C of the machine tool M.

First, the cylinder (first driving body) 22 constituting the work posture changing device 3 in which the joints 20 and 21 are attached to the rod is the body 13
It is mounted on the outer side of one side and near the workpiece transfer end position. A swivel shaft 23, one end of which is fixed by a key (not shown) or the like and the other end of which is supported by the side surface of the body 13, is connected to the joint 21 so as to be orthogonal to the transport direction.

The swivel shaft 23 is fitted into a sleeve 25 of a fixing member 24 formed to have the same width as that of the conveyor 11 and is rotatably supported. The fixing member 24 is fixed to the body 13, and a stopper 27 is provided at an upper portion thereof to prevent the bucket 26 from falling more than a certain angle when it falls.

Bosses 29, which are located on both sides of the fixing member 24 and project from the bottom plate 28 of the bucket 26, are fixed to the swivel shaft 23, and the rotation of the swivel shaft 23 causes the bucket 26 to swing. Boss on the bottom plate 28
The bottom plate 28 is provided with a protruding portion 29, and a bucket 26 formed to have the same size as the outer diameter of the work W for receiving and mounting the work W is fixed to the bottom plate 28. And these comprise the work posture conversion apparatus 3.

At the upper part on both sides (left and right) of the bottom plate 28 to which the bucket 26 is fixed,
Opening / closing cylinders 31, 31 are provided so as to face each other through brackets 30, 30a so as to be orthogonal to the transport direction. The rods 31a, 31a of the opening / closing cylinders 31, 31 are the work storage members 32, 3
The work storage members 32, 32a, which are connected to the 2a, can be opened and closed left and right by driving the opening / closing cylinders 31, 31. The front surface of the tip of this work storage member is closed from both sides until it is positioned slightly narrower than the outer diameter of the work W, so that the outer diameter of the work W is stored inside the facing work storage members 32, 32a. Forming an arc-shaped storage part. Therefore, the work W is restricted from jumping forward at the foremost front side which is narrower than the work W by entering the storage portion.

The work W that has flowed on the caterpillar-shaped conveyor 11 is placed on a bucket 26 in a state of rocking and falling, and the bucket 26 is raised in the vertical direction to load the work W on a loading device R.
However, the attitude of the bevel gear, which is the work W, must be corrected before the workpiece W is delivered so that the blade of the bevel gear fits properly on the blade engraved on the chuck C of the machine tool M. I won't. The work posture correcting device 4 will be described next.

One end of the bottom plate 28 of the bucket 26 is extended and fixed to the body 13. A guide rail 34 is formed on the front surface of the extended portion so as to be orthogonal to the carrying direction. Further, the guide block 35 that engages with the guide rail 34,
It is fixed to a bracket 37 connected to a cylinder (second driving body) 36. A correction piece 38 having teeth 38a formed to engage with the teeth of the bevel gear, which is the work, is similarly screwed onto the front surface of the guide block 35 at the upper portion of the bracket 37. After all, the guide block 35, the correction piece 38 and the bracket 37 are integrated and are connected to the cylinder rod 36a. Therefore, the bracket 37 and the correction piece 38 are guided by the guide rail 34 together with the guide block 35 and slide left and right by the forward and backward movement of the cylinder rod 36a.

The correction piece 38 having the teeth 38a on the upper side is a normal work storage member 3
It is below the work W stored in 2, 32a. Then, the cylinder 36 is activated and the correction piece 38 is moved left and right until it meshes with the teeth of the work W. As a result, when the work W is set in the normal position, a phototube, a proximity switch and other normally used detection means 39 (proximity switch in the embodiment of FIG. 2B) are provided on the bracket 40 provided on the body 13 side. Is attached above the work W. And these comprise the work posture correction apparatus 4.

As described above, the arm of the robot R, which is a loading device, is oscillated and shaken into the transfer device 1 to grip the work W and swing it to the machine tool M side for transfer.
Now, the robot will be described with reference to FIGS. 3 (a) and 3 (b).

The robot R is provided on the side surface of the machine tool M. Reference numeral 50 denotes a base plate, which is fixed to the side surface of the machine tool M, and a smart body 51 is constructed on the base plate 50. A cylinder 52, which is a drive source for moving the box 54, the arm and the like in the Z-axis direction, is mounted on the upper part of the smart body 51.
Two guide bars 53, 53 are mounted on both sides of the.

The rod 52a of the cylinder 52 and the tip of the guide bar 53 are connected to the side wall of the box 54. Inside the box 54, an arm swiveling cylinder 55 for swiveling in a direction orthogonal to the Z axis is provided. Furthermore, this cylinder for arm rotation 55
The rod 55a is connected to the rack 57 in the housing 56. On the other hand, in the housing 56, the turning shaft 58 is
A gear 59, which is provided so as to be orthogonal to 57 and is meshed with the rack 57, is fixed to the swivel shaft 58.

The other end of the rotary shaft 58 protruding from the housing 56 is an arm.
It is connected to 60. The arm 60 has a rotary actuator 61 at the rear part, and a hand unit 63 is provided at the tip of the arm 60 via a rotary member 62. The hand unit 63 is provided with two claws 65 facing each other, and the hand unit 63 has a rotary actuator 61.
180 ° can be turned by the operation of. The rotating member 62 has a generally known claw opening / closing function. Further, it has a pushing function with the hand unit 63 via a spring 64.

Next, the operation of the transport device configured as described above will be described.

The work W previously processed in the previous step is sent onto the caterpillar-shaped conveyor 11 by another carrying device. The work W is transferred to the work posture changing device 3 while the flow is adjusted by the movement of the cylinder rod of the work flow adjusting device 2. At this time, by driving the cylinder 22 of the work posture changing device 3, the bucket 26 swings and waits in a state of falling until it comes into contact with the stopper 27, so that the incoming work W can be easily received. When the work W flows into the bucket 26, the cylinder
The rod of 22 is extended and the bucket 26 rises in the direction perpendicular to the flow direction. The work W stored in the work storage member 32 moves the correction piece 38 left and right by driving the cylinder 36 of the work posture correction device 4, and the tooth portion 38a of the correction piece 38 and the tooth of the bevel gear, which is the work W, are separated from each other. It is corrected to a normal posture that meshes.

The rod is moved forward by the turning cylinder 55 of the robot R while the work W is corrected to a normal posture. As a result, the rack 57 connected to the rod advances, and the swivel shaft 58 is rotated through the meshed gear 59. When the arm 60 is in the loading position P ₂ , the cylinder 52 in the frame 51 is driven to retract the rod. The box 54, the arm and the like move in the Z direction, and the claw 65 of the hand unit 63 is inserted into the boss hole of the work W in the work storage member 32. The action of the hand unit 63 spreads the claws 65 to support the work W. In this case, the claw 65 holds the inner diameter of the work W.

Next, when the cylinders 31 and 31 of the work posture changing device 3 are driven to retract the rod, the work storage members 32 and 32a on both sides of the work W are opened to a position where they do not interfere with the work W when the work is taken out, and the work can be passed. Become. Next, the cylinder 52 of the robot R is driven, and this time the rod is moved in the Z direction.
When 52a is moved forward, the arm 60 and the claw 65 are moved forward, which means that the work W is pulled out from the transfer device 1.

With the work W pulled out, the rack 57 is retracted. By the engagement of the rack 57 and the gear 59, the arm 60, the claw 65 and the like rotate from the loading position P ₂ over the standby position P to the loading position P ₁ on the machine tool M side. Subsequently, the cylinder 52 is driven to move the arm 60, the claw 65, etc. to the chuck C side. Then, by using the pushing mechanism of the hand unit 63, the work W supported by the claw 65 is pressed against the chuck C of the machine tool M and delivered, the claw 65 is closed and the arm 60, the claw 65, etc. are advanced, and then the arm is re-armed. Etc. to the loading position P ₂ . At the same time, on the machine tool M side, processing such as the boss end surface of the bevel gear that is the work W and chamfering is started.

The next work W is transferred to the transfer device 1 along the above-described flow.
Waiting with the posture corrected. The next work W is supported by the claws 65 by the same operation as described above, withdrawn, and the arm 60 is rotated to the standby position P. Next, the hand unit 63 is rotated 180 ° by the rotary actuator 61 at the standby position P, and the empty claw 65 is directed toward the chuck C side.

When the scheduled processing is completed, the arm or the like is rotated to the loading position P ₁ . Currently, the empty claw 65 is on the chuck C side, so move the claw 65 and the like to the chuck C side as it is,
Use the claw to pull out the finished work. Then, the hand unit 63 is rotated 180 ° again by the rotary actuator 61 at the extracted position, and the next work W is delivered to the chuck C side.

Machining end workpieces W ₁ is pivoted to the loading position P _2, to release the support by the pawl 65 by the moved above the reverse operation to the workpiece receiving member 32, 32a.

At this time, the correction piece 38 of the work posture correction device is moved by the cylinder 36 to a position where it does not interfere with the falling movement of the work W ₁ . The finished work W ₁ is the finished product receiving chute
Stored in 17.

The above is a series of operations, and the scheduled process is completed by sequentially repeating these operations.

As described above, according to the present embodiment, the conveyed work W
Since the work can be received while changing the posture by a simple work posture changing device and the work (W) posture (direction) can be corrected and delivered to the loading device, the conveyance time can be shortened and the conveyance can be improved effectively. It became a device.

[Effect of device]

According to the present invention, when the conveyed work is received while changing its posture, the posture can be corrected and delivered to the loading device almost simultaneously or continuously in the same delivery device, so that the conveyance time is shortened. Especially when the processing cycle is short, the shortening of the transportation time brings a great effect on the improvement of productivity.

[Brief description of drawings]

1 (a) shows an overall plan view of a process in which the carrier is used, FIG. 1 (b) shows an overall side view, and FIG. 2 (a) shows a plan view showing the details of the main parts of the carrier. The same (b) shows a side view, the same (c) shows a view taken in the direction of arrow I in FIG. 2 (b), and FIG. 3 (a) shows II-II in FIG. 1 (a).
A front view of the robot is shown in a line arrow view, and the same (b) shows a III arrow view in FIG. 3 (a). In the figure, 1 ... conveying device, 2 ... work flow adjusting device 3 ... work posture changing device 4 ... work posture adjusting device 11 ... conveyor, 22 ... cylinder 23 ... swivel axis, 26 ... bucket 31 …… Opening / closing cylinder, 38 …… Correcting piece 50 …… Base plate 52 …… Cylinder 54 …… Arm swiveling cylinder 57 …… Rack, 59 …… Gear 60 …… Arm, 63 …… Hand unit 65 …… Pawl, M… … Machine tools C …… Chucks, R …… Robots.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Urayama 2400-14 Takayanagi, Fujieda-shi, Shizuoka Auto Giken Kogyo Co., Ltd. 130217 (JP, U) Actually opened 60-12532 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A work having a conveyor that circulates in an infinite band in a body having a base, and is continuously transferred on the conveyor in a horizontal state with the axial center of the disk-shaped work facing upward. While changing the posture from the horizontal posture to another posture at the transfer end position of the conveyor,
A transport device for rotating the work in a circumferential direction to correct the circumferential direction to a predetermined position, which is arranged at a transfer end end position of the conveyor of the base,
A work container for receiving and storing the works transferred one by one from the conveyor, and a swivel for pivoting the work container and for changing the posture of the work container receiving the work to another posture. A turning shaft, and a first driving body which has one end connected to the turning shaft or the work storage body and the other end connected to the base and which turns the work storage body with the turning shaft as a pivot. A work posture changing device for changing the posture of the work; and a work posture conversion device provided in the work storage body so as to be movable in a tangential direction of a circumferential portion of the work, and formed on the circumference portion of the work stored in the work storage body. The engaging member formed with an engaging portion that engages with the engaged portion, the second driving body that drives the engaging member in the moving direction, and the circumferential correction of the work are completed. Detection means for detecting whether or not Composed of and
And a work posture correcting device that corrects the circumferential direction of the work to a predetermined position, and performs the work posture changing operation and the work posture correcting operation of the work stored in the work storage body substantially simultaneously or continuously. A transport device characterized by being able to perform.