JPS61146432A - Carrying/assembling system of work - Google Patents

Abstract

PURPOSE:To carry the positioned work and processed work simultaneously by providing a preparing position on a path for carrying a work from feeding section to assembling section. CONSTITUTION:Preparing position 4 is arranged between the work feeding section 1 and work assembling section 2. Work passing section 32 including work carrying unit 3, grease applying section 33 and drive mechanism 12 or carrying means between said sections 32, 33 are provided in the preparing section 4. Upon receiving and positioning a work (a) from work carrying unit 3 in work passing section 32, the work (a) is carried to the grease applying section 33 and treated. Then the work (a) is passed again from the passing section 32 to the carrying unit 3 and to carry the positioned work (a) and the treated work (a) simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a workpiece conveying and assembling method in which a workpiece supplied from a workpiece supply section is positioned and then transported to a workpiece assembly section where the workpiece is automatically assembled.

[Technical background of the invention and its problems]

There are various methods for transporting and assembling workpieces, in which a large number of parts and other workpieces housed on a pallet or the like are grasped one by one and transported to an assembly section by a robot or the like for automatic assembly. When it is necessary to apply grease to each workpiece one by one as a preparation, the following method is adopted.

That is, the workpieces housed on the pallet are gripped one by one by the gripping mechanism and transported to the grease application section to perform the grease application operation, and the workpieces that have been coated with grease are gripped again by the gripping mechanism and sent to the workpiece assembly section. The equipment is delivered and automatically assembled. In other words, the grease application process and workpiece assembly process are performed in separate sections, and the workpiece must be positioned at a predetermined position during grease application and assembly.
A positioning step is required before the above two steps.

Therefore, the number of processes before workpiece assembly increases, the equipment becomes large-scale, and it takes a lot of effort to manage maintenance, inspection, etc. of each process, and the operating rate of each process decreases, reducing productivity. was causing a decline in

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances, and its purpose is to enable processing such as positioning and grease application of the workpiece while it is being transported from the supply section to the assembly section; The object of the present invention is to provide a workpiece transport and assembly method that performs work in a series of operations, facilitates maintenance and inspection by reducing the number of steps, and improves productivity.

[Summary of the invention]

In order to achieve the above object, the present invention provides an assembly preparation position between a workpiece supply section and a workpiece assembly section, and provides a delivery section, a processing section and a processing section for the workpieces held by the workpiece transport device at the assembly preparation position. A means for transferring between the transfer section and the processing section is provided, and after receiving and positioning the workpiece from the workpiece transport device in the transfer section, the workpiece is carried into the processing section and processed, and the workpiece is transferred again to the transfer section. The object is to transfer the positioned work and the processed work at the same time.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a schematic configuration of a workpiece conveying and assembling device, in which 1 is a workpiece supply section, 2 is a workpiece assembly section, and 3 is a workpiece assembly section 2 that grasps a workpiece a from the workpiece supply section 1.
This is a work transport device for transporting workpieces to a workpiece, and an assembly preparation position 4 is provided in the middle of transporting the workpieces.

The work supply section 1 is provided with pallets 6 stacked in multiple stages on the top surface of the table 5, and these pallets 6...
A large number of works a... such as parts are housed in an aligned state. Further, the work assembly section 2 is provided with a conveyor 8 for conveying the bases 7 of the equipment, and the works a are supplied one by one onto the upper surface of the base 7 for assembly.

Furthermore, the workpiece transfer device 3 is constituted by, for example, a horizontally rotating articulated robot, and the Z-axis 9 has a workpiece a.
A gripping mechanism 10 for gripping is provided. Then, the workpieces a are grasped one by one from the workpiece supply section 1 and carried into the base 7. Further, the assembly preparation position 4 is provided with a workpiece positioning device 11 as a transfer means, as shown in FIGS. 2 to 4.

To explain this work positioning device 11, 12
is a drive mechanism constituting the index unit, and this drive shaft 13 is provided to protrude vertically.

This drive shaft 13 is provided with vertical linear guides 14.14, and these linear guides 14.14 are provided with a first table 15 and a second table 16 which are divided into left and right sides and are movable up and down. There is. A positioning mechanism 17.17 is provided on the first and second tables 15.16. These positioning mechanisms 17.17 have the same structure, so to explain one of them, 18 is an X-direction positioning block provided on the top surface of the first table 15, and 19 is a Y-direction positioning block. A pressing pin 20 is provided on the X-direction positioning block 18, and a pressing rod 21 is provided on the Y-direction positioning block 19 so as to be able to move forward and backward. The pressing is on bin 2
0 is provided on the guide member 22 so as to be movable forward and backward, and the pressing rod 21 is pivotally supported on the bearing body 23 so as to be movable forward and backward, and further urged in the forward direction by a compression spring 24. Also, the first
A drive mechanism 25 consisting of both Ronde type cylinders is provided at the bottom of the table 15. A first drive shaft 26 of this drive mechanism 25 passes through the first table 15 and protrudes upward, and a lever 27 is provided on this first drive shaft 26 for moving the bottle 20 forward and backward. ing.

Further, the second drive shaft 28 protrudes from the side of the first table 15, and the second drive shaft 28 is provided with a lever 29 for moving the pressing rod 21 forward and backward.

Then, the driving mechanism 25 simultaneously operates the bin 20 and the pressing O-rad 21 to perform the pressing, and the work setting section 30
It is configured to position the workpiece a housed in the XY directions. Note that 31 is a thrust cylinder, which adjusts the heights of the first and second tables 15 and 16.

The workpiece positioning device 11 configured in this way is installed at the assembly preparation position 4 as described above, and the first table 15 and the second table 16 are moved by rotating the drive shaft 13 forward and backward through 180 degrees. The workpiece positioning section 32 and the grease application section 3 as the workpiece processing section alternately.
It is now possible to face 3. The workpiece transfer section 32 is located on the rotation locus of the two axes 9 of the workpiece conveyance device 3, and the grease application section 33 is provided with a grease applicator 34 that applies grease to a predetermined position of the workpiece a. There is. Therefore, for example, when the first table 15 faces the work transfer section 32, the second table 16 faces the grease application section 33, and conversely, the first table 15 faces the grease application section 33. At times, the second table 16 faces the workpiece transfer section 32.

Next, we will explain the operation of the workpiece conveyance and assembly device configured as described above. 1° Due to the rotating movement of the workpiece conveyance device 3, its Z axis 9 faces the pallet 6 of the workpiece supply section 1, and the workpiece is picked up by the gripping mechanism 10. When one piece a is gripped, the X axis 9 rotates in the six directions of the arrow, and the workpiece transfer section 32 in the assembly preparation position 4 is moved.
to face. Then, after the X-axis 9 descends, the gripping mechanism 1
0 releases the grip on the workpiece a, the first table 15
A workpiece a is placed on the workpiece setting section 30 . When the placement of the workpiece a is detected, the drive mechanism 25 is activated, and the first drive shaft 26 and the second drive shaft 28 are simultaneously driven.

Therefore, the pressing bin 20 and the pressing rod 21 simultaneously advance to move the workpiece a to the X direction positioning block 18.
and press it against the Y direction positioning block 19. In other words, the workpiece a is positioned in the X and Y directions.

During the positioning process, the workpiece a, which has already been positioned on the second table 16, faces the grease application section 33. Therefore, since grease is applied to the predetermined position of the workpiece a by the grease application e134, the workpiece a
positioning and applying grease can be done at the same time. Then, when positioning and grease application are completed, the drive mechanism 12
As a result, the drive shaft 13 is rotated 180 degrees in the opposite direction, so that the first table 15 faces the grease application section 33 and the second table 16 faces the delivery section 32. Therefore, the positioned workpiece a is applied with grease in the same manner as described above facing the grease application l1134, and the workpiece a with completed grease application is gripped by the gripping mechanism 10, and the drive mechanism 25 presses the workpiece into the bottle. 20 and pressing causes the rod 21 to retreat and release the restraint of the workpiece a. Next, the Z-axis 9 of the work transfer device 3 rotates in the direction of arrow B to carry the work a onto the base 7 of the work assembly section 2. Then, the workpiece a gripped by the gripping mechanism 10 is automatically assembled to the base 7.

When the supply, positioning, grease application, and assembly of the workpiece a are completed in this way, the Z axis 9 of the workpiece conveyance device 3 turns in the direction of arrow C, and the gripping mechanism 10 returns to the workpiece supply section 1, and operates in the same manner as described above. will be repeated.

Note that the first and second tables 15 and 16 in the workpiece positioning device 11 are vertically movable, and can be raised by the push-up cylinder 31, and lowered by a spring, so that the workpiece a cannot be held against the gripping mechanism 10. Acceptance and delivery can be done easily.

Further, in the above embodiment, the workpiece positioning device 11
180°, but the invention is not limited to this.
The rotation may be 360 degrees or 90 degrees, and the workpiece transfer device 3 is not limited to a robot, but may be a dedicated machine. Furthermore, although the case where the paste is applied to the workpiece a has been described, it may also be a process for preparing for assembly, such as processing or straightening the workpiece a.

〔Effect of the invention〕

As explained above, according to the present invention, an assembly preparation position is provided during the transport of the workpieces from the workpiece supply section to the workpiece assembly section, and the workpieces are positioned and processed. Since the workpieces can be transferred simultaneously, the number of processes can be reduced, equipment can be simplified and management such as maintenance and inspection can be made easier.Furthermore, by improving the operating rate of each process, it is possible to reduce the number of processes. This has the effect of improving production pleasure.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic plan view of the overall configuration, FIG. 2 is a plan view of the workpiece positioning device, FIG. 3 is a front view, and FIG. Arrow in the diagram■
It is a bottom view seen from the direction. 1... Work supply section, 2... Work assembly section, 3.
... Workpiece conveyance device, 4... Assembly preparation position,
11... Work positioning device (transfer means), 32...
- Delivery section, 33... Grease application section (processing section). Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 2

Claims (1)

[Claims] In a workpiece conveyance and assembly method in which a workpiece in the workpiece supply section is carried into a workpiece assembly section and assembled by a workpiece conveyance device that transfers between a workpiece supply section and a workpiece assembly section provided at different positions, the workpiece supply section An assembly preparation position is provided between the section and the work assembly section,
The assembly preparation position is provided with a delivery section, a processing section, and a means for reciprocating the workpiece held by the workpiece transport device, and a means for reciprocating the workpiece between the delivery section and the processing section, and the delivery section receives and positions the workpiece from the workpiece transport device. After that, the workpiece is carried into the processing section and processed, and the workpiece is transferred again from the transfer section to the workpiece transfer device, so that the workpiece after positioning and the processed workpiece are transferred at the same time. Features a workpiece transport and assembly method.