JPS6134933B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for assembling a plurality of assembly parts, and is suitable for, for example, assembling an axle shaft assembly and a brake assembly of an automobile.

Conventionally, in general, an assembly line for multiple assembly parts is divided into main parts and secondary parts, taking into consideration the order of assembly of the parts, workability, etc., and the main parts are placed on the conveyor of the main assembly line. jigs such as transport pallets are installed at equal intervals, the main parts are supplied to the jigs on the main assembly line, and the accessory parts of the main parts are assembled in advance on the main assembly line, and then the jigs on the main assembly line are assembled. Parts are supplied to the main parts on the main assembly line, and collection is completed on the main assembly line.

Apart from cases in which the above-mentioned subordinate parts consist of a single part, if they consist of an assembly of multiple parts, they must be assembled on the main assembly line, or if the assembly position is In cases where this is not possible due to restrictions such as restrictions or restrictions such as impossibility of assembly, it is necessary to assemble the parts in advance on a sub-assembly line and then supply them to the main assembly line for assembly. For example, a completed assembly around the rear axle shaft of a drum brake type automobile has a structure as shown in FIG. In this Figure 1, 1 is the back plate of the brake assembly, 2 is the cage, 3 is the cage bolt, 4 is the grease seal, 5 is the axle shaft, 6 is the packing, 7 is the clear kit,
8 is a hub bolt, 9 is a spacer, 10 is a bearing, 11 is a bearing washer, 12 is a lock washer, and 13 is a lock nut. Conventionally, such a method of assembling around the rear axle shaft has been carried out using a back plate 1 as shown in Fig. 2;
A brake assembly A consisting of a cage 2, a cage bolt 3, and a grease seal 4, an axle shaft 5, a packing 6, a grease catcher 7, a hub bolt 8, and a spacer 9 as shown in FIG.
Shaft assembly B, which is made by assembling the two parts, has a different assembly direction in order to simplify and facilitate the assembly work of both accessory parts, so they are assembled on separate assembly lines, and these parts are assembled on one side. The assembly line was used to complete the process as shown in Figure 1. By the way, according to this assembly method, the brake assembly A and the axle shaft assembly B are assembled on separate lines, so two assembly lines are required at the most, which increases equipment costs and reduces docking work. Since there is sometimes the troublesome work of moving one assembly in a direction perpendicular to the transport direction, there are drawbacks such as the assembly and assembly work taking time, and the cycle time of the assembly work increasing significantly.

In view of the above-mentioned drawbacks of the conventional art, it is an object of the present invention to provide a method for assembling a plurality of assembly parts with the aim of improving and eliminating the drawbacks.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of the present invention shown in the drawings will be described below.

In this invention, there is one assembly line, and this assembly line is constructed as shown in FIG. That is, a first jig 15 for assembling the brake assembly A and a first jig 15 for assembling the axle shaft assembly B on the conveyor 20 that moves tactically or continuously in the direction of the arrow in the figure at a predetermined speed. The second jigs 16 are arranged alternately in one row, and the first station 1 _st to the third station 3 _st is used for the brake assembly assembly process, and the fourth station 4 _st to the sixth station 6 _st is used for the axle shaft assembly process. The assembly assembly process, the 7th station _7st is the backup process, the 8th station _8st to the 12th station _12st is the docking process, the 13th station _13st is the backup process, and the 14th station _14th is the finished product unloading process. The assembly method of the present invention using this assembly line will be sequentially explained below.

First, on the jig 15 at the first station _1st ,
Back plate 1, cage 2 and cage bolt 3
Set as shown in FIG. Next, the cage bolts 3 are supplied at the second station 2 _st as shown in FIG. Then, at the third station 3 _st , the grease seal 4 is press-fitted and supplied as shown in FIG. 7 to complete the assembly of the brake assembly A. Next, at the fourth station 4 _st , the axle shaft 5, packing 6, grease catcher 7, and hub bolt 8 are set on the jig 16 as shown in FIG. Then, at the fifth station 5 _st , the hub bolt 8 is press-fitted as shown in FIG. Next, at the sixth station 6 _st , the spacer 9 is press-fitted as shown in the tenth station to complete the assembly of the axle shaft assembly B. And the 7th station 7 _st
If there is a problem with brake assembly A and axle shaft assembly B, use the respective jigs 15.
and 16 separately. next,
At the 8th station 8 _st , the brake assembly A on the jig 15 is reversed and transferred to the jig 16 of the axle shaft assembly B.
and shaft assembly B as shown in FIG. Then, at the ninth station _9st , the bearing 10 is press-fitted and supplied as shown in FIG. Next, the bearing washer 11, lock washer 12 and lock nut 13 are set and temporarily tightened at the 10th station 10 _st , the lock nut 13 is firmly tightened at the 11th station 11 _st , and the lock washer 12 is tightened at the 12th station 12 _st . Bend and lock. If there is a problem with the 13th station _13th , we will back it up.
The finished product on the jig 16 is carried out at the 14th station _14th station.

In addition, in the above-mentioned embodiment, the case where two types of assembly parts, the brake assembly and the axle shaft assembly, were finally assembled was explained, but the present invention is not limited to the assembly of the brake assembly and the axle shaft assembly.
It can be widely applied to assembly parts that first assemble individual assembly parts and then assemble the assembled individual assembly parts together.
The types of assembly parts are also not limited to two.

As explained above, according to the present invention, a plurality of assembly parts A, B,...
A method of assembling multiple assembly parts in which one completed part is assembled by individually assembling each assembly part, in which a set of multiple types of jigs X, Y, ... corresponding to each assembly part is assembled on one conveyor. The multiple types of jigs X, Y,
...Using any one type of jig, the assembly parts corresponding to this jig are assembled in advance, and then the assembly parts corresponding to this jig are assembled using another type of jig. After assembling a plurality of assembly parts individually in this way using the types of jigs corresponding to these parts, these plurality of assembly parts A, B,
Because one completed product is assembled by docking ... on one of the types of jigs, the drive mechanism can be standardized and simplified compared to when the line is configured in double rows. In addition to reducing equipment costs, when docking multiple assembly parts, it is only necessary to move one or more assembly parts in the transport direction on adjacent jig surfaces, making it possible to configure the line in double rows, for example. It is possible to eliminate the means for moving in the direction perpendicular to the conveying direction and the wasted time of moving therebetween, which is seen in the case of doing so, and it is possible to improve work efficiency.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the final assembled product of the brake assembly and axle shaft assembly, Figure 2
The figure is a sectional view of the brake assembly alone, Figure 3 is a sectional view of the axle shaft assembly alone, and Figure 4 is a sectional view of the axle shaft assembly alone.
The figure is a plan view schematically showing an assembly line used in the present invention, and FIGS. 5 to 14 are explanatory diagrams of the assembly process. A... Brake assembly, B... Axle shaft assembly, 20... Conveyor, 1
5,16...Jig.

Claims (1)

[Claims] 1. A method for assembling multiple assembly parts, in which a plurality of assembly parts are individually assembled into one finished product on one conveyor that moves tactically or continuously at a predetermined speed, and each assembly A plurality of sets of jigs corresponding to each part are arranged in series on one conveyor, and any one of the plurality of jigs is used to carry out this jig. The assembly parts corresponding to the jig are assembled first, and then the assembly parts corresponding to this jig are assembled using other types of jigs, and in this way, the plurality of assembly parts correspond to each of these. A set of a plurality of assembly parts, characterized in that the plurality of assembly parts are assembled individually using a jig of a type, and then the plurality of assembly parts are docked on a jig of a type to assemble one finished product. Attachment method.