JPS6057978B2 - Method for assembling objects to be assembled using a jig board with sub-assembly parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for assembling objects to be assembled using a single automatic assembly machine such as a linear transfer machine or a rotary table type.

Items that cannot be assembled from the same direction using conventional automatic assembly machines are assembled manually, and items that can be assembled by reversing and guiding the parts are assembled using multiple machines. I was doing things like that.

Therefore, there were disadvantages such as extra manpower, the need for multiple machines, and the high cost, and the inability to assemble the objects to be assembled using the same machine. In addition, some parts have two or more guide holes, and when inserting pins from different parts into each guide hole, the parts have dimensional tolerances, so positioning is difficult and the parts may get stuck or get stuck. This caused problems such as scratches on parts.
Therefore, the present invention eliminates the drawbacks of the conventional method and performs sub-assembly and positioning of parts that are difficult to assemble at the same assembly position at the sub-assembly position provided on the jig board, creating a state in which they can be assembled and assembling the main assembly. By performing the assembly work on-site, a method for assembling parts that was previously difficult to assemble directly has been realized.

Embodiments of the present invention will be described to clarify other objects, functions, and effects of the present invention. 1 to 7 show the state of the jig board at each assembly position of the linear transfer machine.

FIG. 1 shows a first assembly position, in which an assembly board 20 is disposed at fixed positions on a plurality of jig boards 10 of the transfer machine, constituting a main assembly part. FIG. 2 shows a second assembly position, in which a spur gear 30 is inserted into a recess 11 provided in the jig board 10 by an assembling means (not shown) to constitute a sub-assembly part.

In other words, this sub-assembly part is assembled smoothly because the positioning recess 11 for the spur gear 30 is already provided. FIG. 3 shows the third assembly position, in which a pin 31 is inserted into the spur gear 30 positioned and disposed in the sub-assembly part of the jig board 10 by the above-mentioned assembling means (not shown), and is directly attached to the assembly board 20. The spur gear 30 and pin 31, which are difficult to assemble, are sub-assembled using the sub-assembly part.

FIG. 4 shows the fourth assembly position, in which the sub-assembled spur gear 30 and pin 31 are simultaneously main assembled onto the assembly board 20. In this fourth assembly position, as shown in FIG. A chuck device having a chuck 40 at the assembly position and a chuck 41 at the main assembly position and capable of being reversed 180 degrees is provided so as to be movable up and down.

Spur gear 30 in sub-assembly position by one chuck 40;
When the pins 31 are chucked at the same time and the chucks 40 and 41 are reversed while the jig board is moving, and the next jig board 10 moves to the fourth assembly position, the spur gear 30a and pins that were in the sub-assembly position are 31a is assembled at the main assembly position on the upper part of the assembly board 20. The chuck 40, which has been assembled at the main assembly position, is further reversed and rotated to the sub-assembly position of the subsequent jig board, and when the chucks 40 and 41 descend, the chuck 40
0 chucks the spur gear 30 and pin 31 at the sub-assembly position, and the chuck 41 inserts and places the already sub-assembled spur gear 30a and pin 31a onto the assembly board 20 at the main assembly position to complete the assembly. . In this way, at the fourth assembly position, the spur gear 30 and pin 31 that were in the sub-assembly position of the previous jig board 10a are moved to the fourth assembly position by the chuck 41. It is reversed and moved to the main assembly position, and the spur gear 30 and pin 31 are assembled in the main assembly position in the previous jig board 10a.
The empty chuck claw 40 which has not been chucked rotates to the sub-assembly position and chucks the spur gear 30 and pin 31 assembled at the width assembly position of the next jig board 10. FIG. 5 shows the specific mechanism of the chucks 40, 41.

The reversal axis 46 is 180 per cycle of assembly operation. rotates, descends during chucking, and rises while the jig board is moving, so that it does not obstruct the movement of the jig board. The chuck blacks 40 and 41 are the chuck bodies 42 and 4
3, and is provided with a recess according to the shape of the object to be assembled, and the chuck 40 and 41 communicate with the vacuum hole 47 of the reversing shaft 46 to attract the object when chucking the object to be assembled. is becoming possible. The chuck bodies 42 and 43 are disposed on a reversing shaft 46 so as to be slidable in the vertical direction, and are pressed downward by springs 44 and 45, and remain in the same position when chucking an object to be assembled on a jig board. When the object to be assembled is vacuum-suctioned and chucked, and the object to be assembled is assembled on the jig board, the tip of the chuck on the chuck body comes into contact with the assembly board on the jig board and is pressed, and the chuck body is pushed into the reversing shaft 4J6, and is assembled by the reaction force of the springs 44, 45. FIG. 6 is a plan view of the jig board for explaining the assembled state. A reversing shaft having a check mark is disposed at the position of the jig board 50, and the jig board 51 is sequentially moved to the position of the reversing shaft.
When moving with the jig board 52, first move the jig board 5.
The chuck 40, which has chucked the object to be assembled at the sub-assembly position 50b, has its reversal axis reversed at the next jig plate 51, and assembles it at the main assembly position 51a. At this time, the other chuck 41 is at the main assembly position 50a on the jig board 50.
After the assembly is completed, the jig board 51 is now empty, and is moved to the sub-assembly position 51b of the next jig board 51 to chuck the object to be assembled that has been assembled in advance at the sub-assembly position. On the next jig board 52, the chuck 40 that was assembled on the previous jig board 51 does not have the object to be assembled, so the reversal axis is reversed and the object to be assembled is moved to the sub-assembly position 52b. Chucking. Similarly, the checkerboard 41 is assembled on the jig board 50, and the jig plate 5
At step 1, the objects to be assembled are chucked and assembled at the jig board 52. The chucks 40 and 41 perform the assembly work by repeating the above operations. The present invention is configured as described above, and a sub-assembly section is provided on the jig board to perform the assembly work that was previously performed using a separate machine or by hand due to the difficulty of assembling at the same assembly position using conventional automatic assembly machines. This can be solved by performing sub-assembly until assembly is possible, and then assembling in the main assembly part in the same jig panel. Even during assembly work, which caused bumps and scratches during assembly, which caused damage to the objects to be assembled, it is now possible to position the objects in the sub-assembly section before performing the main assembly. This is an excellent invention with excellent technical effects.

[Brief explanation of the drawing]

1 to 4 show the assembled state of the same jig board at each assembly position. FIG. 5 is a cross-sectional view of the reversing shaft, and FIG. 6 is a plan view of the jig board to explain its assembled state. 10,1
0a: Jig board, 20: Assembly board, 30, 30a: Spur gear, 31, 31a: Pin, 40, 41: Chuck, 42
, 43: chuck body, 44, 45: spring, 46: reversing shaft, 47: vacuum hole.

Claims (1)

[Claims] 1. In an automatic assembly machine with multiple identical jig panels, a sub-assembly section is provided in the same jig panel at a different position from the main assembly section, making it possible to assemble objects that are difficult to assemble directly into the main assembly section in the width assembly section. a process of performing sub-assembly and positioning until the sub-assembly is completed, a process of chucking the sub-assembled objects with a chuck opening that is reversibly disposed between the sub-assembly part and the main assembly part, and a process of chucking the sub-assembled objects into the sub-assembly part and the main assembly part, The process of reversing the installed chuck opening into the main assembly part, the process of transporting the jig board when reversing the chuck opening and moving the next jig board to its assembly position, and the process of rotating the chuck opening into the main assembly part by reversing the chuck opening. By using a jig board with a sub-assembly part that repeats the process of assembling the to-be-assembled part that has been moved and assembled in the main assembly part, and simultaneously chucking the part to be assembled in the sub-assembly part of the next jig board. How to assemble objects to be assembled.