JPH0699333A - Work machining system - Google Patents

Abstract

PURPOSE:To provide a work machining system allowing automatic work machining work and reducing the number of workers and dramtically improving machining efficiency. CONSTITUTION:Robots 10, 11 are placed between work processing equipment such working machines (e.g. between a work supplying part 5 and a work allignment discharge part 6, and between the work allignment discharge part 6 and a deburring device 7 and a milling machine 8). Works are delivered between the work processing equipment by means of tire robots 10, 11. A finished product pallet for transferring the machined works is cyclically carried to load and unload the works to and from the finished product pallet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work machining system for machining a work such as a crank bearing cap attached to a crank shaft portion of a cylinder block for a four-wheel vehicle.

[0002]

2. Description of the Related Art In a conventional work machining system of this type, for example, 4 pieces are contained in a coarse material pallet (a fairly large pallet used as a returnable box when delivering a product).
Two workpieces are set as one set and the two sets are manually attached to the milling machine for machining, and the finished workpieces are manually deburred by a file and then packed into a finished product pallet ( Line side work)
I am trying. Then, the finished product pallet is conveyed to the cap fastening machine in the line, and the work is put on the supply device together with the finished product pallet to perform a predetermined fastening work. On the other hand, it is the actual situation that the finished product pallet that is emptied after tightening is manually taken back to the location of the milling machine and reused each time.

The reason why the rough material pallet and the finished product pallet are used as described above is as follows. In other words, the work inside the rough material pallet is packed to some extent, but is not completely aligned, so it cannot be placed on the line as it is, and the work is packed into the finished product pallet in an aligned state and then lined. I am trying to use it above.

[0004]

However, in the conventional work machining system as described above, the work is taken out from the rough material pallet, the set of a plurality of works taken out from the rough material pallet is confirmed, and the work is put into the milling machine. Installation and removal of workpieces from the milling machine, deburring of workpieces, packing of workpieces into finished product pallets, supply of finished product pallets to cap tightening machines, collection of empty pallets, etc. by hand Due to the fact that it is carried out, a lot of manpower (working staff) is required, and the reality is that productivity is very poor.

The present invention has been made in view of such circumstances, and an object thereof is to automate each of the above-mentioned operations, to reduce the number of workers and to greatly improve the machining efficiency. To provide a simple work processing system.

[0006]

In order to achieve the above object, according to the present invention, a robot is arranged between work processing devices such as processing machines, and the robot transfers the work between the work processing devices. In addition to the above, the finished product pallet for transporting the processed work is cyclically conveyed to load and unload the work from the finished product pallet.

[0007]

A robot automatically fills and unloads a work pallet between work processing devices, and a finished product pallet for transferring processed works is cyclically conveyed by a conveyor. The work machining line is fully automated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a work machining system according to the present invention. In FIG. 1, 1 is a work machining mechanism for machining a work such as a bearing cap, and 2 is the work machining mechanism 1. The work transfer mechanism 3 for transferring the work is a cap tightening machine for tightening the work (bearing cap) transferred by the work transfer mechanism 2 on the cylinder block.

As shown in FIG. 1, the work machining mechanism 1 described above includes a work supply unit 5, a work aligning and unloading unit 6, a deburring device 7, a milling machine 8, and a work packing unit 9. Each has. Then, the first robot (transfer robot) 10 is arranged between the work supply unit 5 and the work alignment carry-out unit 6, and between the work alignment carry-out unit 6 and the deburring device 7 and the milling machine 8. A double-handed second robot (palletizing robot) 11 is arranged in the.

Here, the construction of each part of the work machining mechanism 1 will be described in detail. First, the work supply part 5 is composed of a rough material pallet supply part 13 and a work placement state detection part 14. The rough material pallet supply unit 13 is composed of a plurality (for example, four) of rough material pallet transport conveyors 15 arranged in parallel with each other, and the rough material pallet 16 containing the work is placed on the work belt by the upper belt. The empty pallet that has been conveyed toward the state detection unit 14 and the work has been delivered to the detection unit 14 is reciprocated by the belt on the lower stage side of the rough material pallet conveyer 15. on the other hand,
The work placement state detection unit 14 receives a pallet lifter 17 that receives the pallet of crude material 16 conveyed by the conveyor 15, and the palletizer pallet 1 on the pallet lifter 17.
And a camera 18 for detecting the directions of two holes (a hole for holding a work in a later process) of the work contained in the work 6.

The above-mentioned work aligning / unloading unit 6 includes a work aligning unit 20, a work recognizing unit 21, and a work unloading unit 2.
2 and 2 are arranged in series, and the work is configured to be sequentially transferred to these mechanisms 20, 21, 22. More specifically, the work arranging unit 20 includes the first
The robots 10 are arranged so that the workpieces transferred by the robot 10 are vertically regulated and laterally regulated by cylinders or the like on the mounting table to be aligned in a predetermined state.
The work recognizing unit 21 is for recognizing the suitability of the type of the work by identifying the number marks attached to the aligned works with the camera 23, and the work unloading unit 2
2 is for carrying out a work recognized as an appropriate product to a predetermined robot delivery position.

An unsuitable product unloading chute 24 is provided in relation to the work unloading unit 22, and a different type of work determined to be an unsuitable product by the work recognizing unit 21 is put into the unsuitable product unloading chute 24. Are excluded from the work transfer line.

Further, the work which is determined by the work recognizing unit 21 as a proper product and is placed at a predetermined position of the work unloading unit 22 is moved by the second robot 11 to the jig 2 of the milling machine 8.
6 and from this milling machine 8 to the deburring device 7
It is configured to be delivered to.

On the other hand, the work stuffing section 9 is composed of a conveyor 27 in which a plurality of finished product pallets are arranged. At the palletizing position P, the finished product pallets are filled with works and transferred to the work transfer mechanism 2. It has become so.
Further, the pallet inversion position 2 is provided adjacent to the work packing section 9.
9 is arranged, and the finished product pallet is inverted upside down at the pallet reversal position 29, and the work remaining in the finished product pallet is thrown into the chute 30. Then, the work loaded into the chute 30 is configured to be returned to the conveyor 27 again.

The work transfer mechanism 2 described above includes a first completed product pallet transfer conveyor 32 having a single pallet feeder 31 and the completed product pallet transfer conveyor 32.
2nd and 3rd finished product pallet conveyors 33, 34 subsequent to the above, and an actual pallet supply for supplying the actual pallet filled with work from the third completed product pallet conveyor 34 to the cap tightening machine 3. The conveyor 35 and an empty pallet return conveyor 36 for returning the empty pallet after the work is delivered to the cap tightening machine 3 are configured. Thus, in the finished product pallet, the work transfer mechanism 2 is provided between the work processing mechanism 1 and the cap tightening machine 3 as shown in FIG.
As shown in FIG. 5, the conveyor device 37 is cyclically conveyed through the upper belt 38 and the lower belt 39.

Next, the function of the work machining system of this example will be described.

First, an operator inserts a rough material pallet 16 containing one work into four first to fourth conveyors 15
When installed on the actual pallet transport conveyor section 15a on the upper side, the four rough material pallets 16 are transported to the pallet lifter 17 together with the first to fourth workpieces and positioned. Then, the positions of the two holes of the workpieces of the positioned first to fourth workpieces in each of the rough material pallets 16 are detected by the camera 18, and the position detection data is input to the first robot 10 as an information signal. To be done.
In response to this, the work in the rough material pallet 16 is taken out by the first robot 10, respectively, and the four first to first
The fourth work is the work arranging section 20 of the work arranging and unloading section 6.
Be transferred to.

The four workpieces transferred to the workpiece aligning section 20 of the workpiece aligning and unloading section 6 are pushed in both vertical and horizontal directions to be in an aligned state. Then, the four pieces are conveyed as a set to the work recognizing section 21, and the number marks attached to the work are read by the camera 23, and the suitability of the type of work is determined by this reading. Number recognition (discrimination) is OK (suitable)
If the work is unsuitable, the work is sent to the work unloading unit 22, and if the work is NG (unsuitable), that is, if different kinds of work are mixed, the different work is put into the unsuitable product unloading chute 24. Are excluded from the work transfer line.

The work sent to the work unloading section 22 is grasped and taken out by one hand of the second robot 11, and the work attached to the jig 26 of the milling machine 8 is the second work. It is grasped and removed by the other hand of the robot 11. Immediately after that, the second robot 11 is turned over by 180 °, and the work taken out from the work carry-out section 22 is attached to the jig 26 of the milling machine 8. On the other hand, the milled work removed from the jig 26 of the milling machine 8 is conveyed to the deburring device 7 and deburred. Then, the deburred work is packed in the finished product pallet 40 (see FIG. 2) set at the palletizing position P (8 sets / pallet).

Completed product pallet 4 in full-work state
0 is sequentially transferred onto the upper belts of the first to third finished product pallet conveyors 32, 33, 34 via the pallet single-feeding device 31, and further the upper belt of the actual pallet supply conveyor 35. It is placed on the top and sent to the cap tightening device 3. Then, the work is taken out from the finished product pallet 40 and clamped and fixed to a cylinder block or the like.

The empty pallet 41 (FIG. 2) from which the work is taken out.
(Refer) is sent to the empty pallet return conveyor 36 and is returned to the third finished product pallet transfer conveyor 34. Then, the workpieces that have been conveyed to the pallet reversing device 29 through the lower belts of the third, second and first finished product pallet conveyors 34, 33, 32 in order and remain in the finished product pallet 40 (already In the work tightening process described above, a work which is not taken by a robot or a device (not shown) is a pallet reversing device 29.
It is thrown into the chute 30 by the reversing operation, and is returned to the palletizing position P again to be packed in another finished product pallet 40 again.

On the other hand, when the rough material pallet 16 is emptied, the pallet lifter 17 is lowered and the rough material pallet 16 is moved.
Is loaded on the lower belt of the transport conveyor 15 and collected, and the worker transports it.

Further, among the works sequentially conveyed, a predetermined number of works are set on the product check table 42 (see FIG. 1) after the deburring process by the deburring device 7, and Receive an inspection (sampling inspection).

The rough material pallet 16, the finished product pallet 40, and the work transfer route and the work area in the above-described series of operations are as shown by arrows in FIG.

According to the work processing system of this embodiment, all of the work removal from the rough material pallet 16, milling, deburring, conveyance of the finished product, and supply of the work to the cap tightening machine 3 are automatically performed. In addition, it is possible to automatically and cyclically use the finished product pallet. Therefore, the number of workers can be reduced by automating the work, and the work can be processed extremely efficiently. Moreover, the first and second robots are provided between the rough material pallet conveyor 15, the milling machine 8, the deburring device 7, the finished product pallet conveyors 32, 33, 34 without moving them. By arranging only 10 and 11, it is possible to design this system without requiring a large modification of the equipment (and thus the modification cost).

The embodiment of the present invention has been described above.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention. Needless to say, the present invention can be applied not only to the milling machine 8 and the deburring device 7 but also to a work processing system including various other processing mechanisms such as a drill device. Further, the structure of the work transfer mechanism 2 can be variously changed, and any structure can be used as long as the completed product pallet can be cyclically transferred.

[0028]

As described above, according to the present invention, the robot is arranged between the work processing devices such as the processing machines, and the work is transferred between the work processing devices by the robot, and the processed Since the finished product pallet for transferring the work is circulated and the work is packed into and taken out from the finished product pallet, the work processing device from the loading of the work as the rough material is performed. The work up to the delivery of the work as a finished product (product) can be fully automated through the processing process by, and the work staff can be reduced. Further, when constructing the workpiece processing system according to the present invention, the existing workpiece processing device such as a milling machine or a deburring device is used as it is, the robot is arranged between them, and the circulation system is completed. Since it is only necessary to attach a product pallet transport mechanism, there is no need to make major modifications to the existing equipment, and therefore there is the advantage that no major design changes or large modification costs are required.

[Brief description of drawings]

FIG. 1 is a plan view showing a work processing system according to the present invention.

FIG. 2 is a cross-sectional view of a conveyor device for transporting a work.

FIG. 3 is a schematic plan view showing a rough material real pallet, a rough material empty pallet, a finished product actual pallet, a finished product empty pallet, and a work transportation path and a transportation area in the work processing system.

[Explanation of symbols]

 1 Work Processing Mechanism 2 Work Transfer Mechanism 3 Cap Tightening Machine 5 Work Supply Section 6 Work Aligning and Unloading Section 7 Deburring Device 8 Milling Machine 10 First Robot (Transfer Robot) 11 Second Robot (Palletizing Robot) 15 Coarse material pallet transfer conveyor 16 Coarse material pallet 23 Cameras 32, 33, 34 Complete product pallet transfer conveyor 37 Circulation type conveyor device 40 Complete product pallet

Claims (1)

[Claims] 1. A finished product for arranging a robot between work processing devices such as a processing machine and transferring the work between the work processing devices by the robot and transferring a processed work. A work processing system characterized in that the pallets are cyclically conveyed to load and unload the work into the finished product pallet.