JPS6254581A - Assembling method for assembly member and its device - Google Patents

Abstract

PURPOSE:To increase the efficiency in assembly work by providing a projecting part or hole part on the prescribed place of the member to be assembled and by arranging the hole part or projecting part corresponding to the joining place of the assembly member as well, then by performing the positioning in the assembly. CONSTITUTION:A projecting part 3 is provided by NC press machine on the base material 1 as the member to be assembled and the hole part 7 corresponding to the projecting part 3 is formed similarly on the assembly member 5 as well. In this case, two pieces each of the projecting part 3 and hole part 7 are respectively provided for one member and can be worked in high accuracy with NC press machine as well. Then, both member 1, 5 are assembled by opposing to the projecting part 3 of the base material 1 and the hole part 7 of the member 5 and the member 5 is positioned on the base material 1. The assembly is further performed with the prescribed assembly method of welding, calking, etc. With this method the efficiency in assembly work can be increased with maintaining the high accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method and apparatus for assembling members.

[Description of Prior Art] In recent years, assembly work such as joining members together and assembling parts together has been mechanized, and there has been a demand for higher precision and higher speed of these assembly machines.

Therefore, conventionally, assembly work has been carried out using work machines and jigs for temporary alignment, such as robots, to position the assembly member at a high M degree [α] with respect to the member to be assembled. Wood assembly work, such as welding work, is being carried out.

However, in these conventional assembly operations,
A complex and expensive jig for temporary assembly is required for positioning the assembly member with respect to the member to be assembled with high precision. In addition, as the device becomes more complex, its control becomes more complicated, making it less user-friendly. .

[Objective of the Invention] This invention improves the above-mentioned problems, and provides a method and method for assembling members that has good assembly accuracy and assembly performance, and is useful for use in an automated assembly line. The purpose is to provide such equipment.

[Summary of the Invention] The method of the present invention, which can achieve the above object, provides a protrusion or a hole at a predetermined location on an assembly joint surface of a member to be assembled, and a method for assembling the assembly member to be assembled to the member to be assembled. A hole or a protrusion corresponding to the protrusion or hole is provided at a location opposite to and covering the predetermined location on the assembly joint surface of the member, and the assembly member is provided in the protrusion or hole of the to-be-assembled portion. The assembly position of the assembly member is determined by aligning it with the hole or protrusion of iii.
This is a method of assembling the sword assembly member.

In the method of the present invention, the temporary assembly of the assembly members can be easily and highly accurately performed by aligning the protrusion or hole provided on the member to be assembled with the hole or protrusion provided on the assembly member. For example, it becomes possible to perform temporary assembly with sufficiently high precision using a simple temporary assembly work machine.

Moreover, this invention device which can achieve the above object,
It has a table on which a to-be-assembled member on which the assembly member has been temporarily assembled is placed, and a plurality of arc welding torches whose intervals can be freely adjusted, and whose position can be changed relative to the table surface. This is an assembling device for assembling members, which includes a welding device that can approach and move relatively toward and away from a table surface.

With this inventive device, the temporarily assembled assembly members can be welded as they are with the welding device, so it can be directly used to carry out the inventive method.

[Embodiment of the method invention] An embodiment of the method invention according to the present invention will be explained by dividing its steps using FIGS. 1 to 3.

Ding, '@ River lumber part (base material) and assembly parts (part 1 hanging material)
The process of providing protrusions or holes in the.

In this embodiment, as shown in FIG. 1, a protrusion 3 was provided on the base material 1, and a hole (through hole) 7 corresponding to the protrusion 3 was provided on the component material 5. Two protrusions 3 and two holes 7 are provided for one member. The manufacturing accuracy of these projections 3 and holes 7 is such that when both +A1.5 are combined, the art material 1.5 can be temporarily assembled with high precision without wobbling.

The position of the protrusion 3 of the base material 1 is determined in anticipation of the component material 5 to be assembled, and is numerically controlled (hereinafter abbreviated as NC).
It is possible to easily and accurately provide the first press machine (for example, a punch press machine).

Further, the hole 7 in the component material 5 can be easily and precisely formed in accordance with the bending process using a second press machine (not shown) as described above.

■Temporary assembly for assembling 1 and 5, both materials, is a process.

Following the above process (2), Ugetsu 1.5 is assembled in such a manner that the protrusion 3 of the base material 1 and the hole 7 of the component material 5 face each other and are in contact with each other, and the component material 5 is placed on the base material 1. Positioning crane.

This temporary assembly process can be performed manually, but more generally, it can be easily performed using an NC robot. However, the robot (not shown) in this case does not require high precision as shown in the conventional example, and a general-purpose robot is sufficient. That is, in temporary assembly using a general-purpose robot, for example, the robot transports the component material 5 to a predetermined position on the base material 1, and moves the component material 5 downward at the position shown in FIG. is sufficient.

When Ugetsu 1.5 contacts the hole 7 of the component material 5 with the protrusion 3 of the base material 1, the component material 5 is automatically placed on the base material 1 by the spigot action of the protrusion 3 and hole 7. It will be positioned exactly.

(2) Assembling (2) (2) The assembly process may be performed by welding, caulking, or any other predetermined method, but here, it is assumed that it is performed by arc welding, for example.

In the example shown in FIG. 1, the hole 7 is a through hole, so
By arc heating the protrusion 3 through the through hole 7, welding can be reliably performed and the Ugetsu 1.5 can be reliably assembled. Further, in this example, the weldability is good, and the protrusion 3 and hole 7 for temporary assembly can be used effectively, so there is no waste in the process.

FIGS. 2 and 3 show the state in which three component materials 5a, 5b, and 5C are assembled (put together) on the base material 1 through the above steps.

In this case as well, the protrusion 7 (see FIG. 1) of the base material 1 can be easily formed using the first NC press machine at a predetermined position using three component materials 5a, 5b, and 5c.

As described above, in the method of the present invention, the projections 3 of the base material 1 and the holes 7 of the component material 5 are easily and accurately formed, and temporary assembly is easy. From then on, the art materials 1.5 are assembled in a predetermined manner, so that highly accurate assembly can be performed easily and with high efficiency.

d3, in the above example, the protrusion 3 was provided on the base material 1 side and the hole 7 was provided on the component material 5 side, but conversely, the hole was provided on the base material 1 side and the protrusion on the component material 5 side. It is also possible to provide corresponding portions.

Generally, the number of protrusions or holes is plural, but in some exceptional cases only one is sufficient. For example, this is the case when the center of a disc-shaped member is welded.

In addition, although the example of the hole is a through hole, this hole is
It may be a slot or the like, and in short, it may be any hole that can connect with the opposing protrusions and relatively position the two members.

[Embodiment of the device invention] An embodiment of the device invention will be explained using FIGS. 4 and 5.

FIG. 4 is a plan view of the assembled device, and FIG. 5 is a front view thereof. This assembly device is the third embodiment of the method invention described above.
It is a device in charge of the process (assembly IL process), and is used for transporting the first and second press machines (not shown) (see the explanation of the first process in the embodiment of the method invention), and the parts 5. The robot is placed on an automated assembly line in combination with a general-purpose robot (see the description of the second step in the embodiment of the method invention).

The assembly device 9 has an intermediate armable 13 on a pedestal 11 whose position is controlled in the Y direction in the figure by an NC head (not shown), and an X which is positioned on the table 13 in the X direction.
Y table 15. The intermediate table 13 is driven in the Y direction by rotating a screw member 17 with a servo motor MY, and the XY table 15 is driven in the X direction by rotating a screw member 19 with a servo motor MX. Therefore, the XY table 15 can be freely positioned in the XY plane by controlling the servo motors MX and MY.

On the other hand, the assembly device 9 is provided with a gate-shaped frame 21 that crosses in the X direction on the XY table.
1 is provided with a welding device 23.

The welding device 23 has a pair of torch devices 25 and 27, and one torch device 25 is fixed at a predetermined location on the horizontal portion of the portal frame 21 with the torch 25a facing vertically downward. . Further, another torch device 27 is provided on two rails provided along the underwater portion of the gate-shaped frame 21 so that the interval can be freely adjusted with respect to the torch device 25. The distance between the torch device 25 and the torch device 25 is adjusted by rotating the screw member 31 and the servo motor MT for adjusting the torch distance. Note that the torch in this example is TIG
) method for arc welding.

Each torch device 25.27 has a torch 25a.

torch lifting means 25b for vertically lifting and lowering 27a;
27b is not provided.

The manner of use of the assembly device 9 having the above configuration will be explained.

First, before using this device 9, the first and second
With a press machine, a base material 1 as shown in FIG. 1 and
Part materials 5 (5a, 5b, 5c) are prepared. In this embodiment, the protrusion 3 of the base material 1 and the component material 5 are removed in order to simultaneously drill the two holes 7 (see FIG. 1) with two torches spaced apart in the X-axis direction. The design condition is that the holes 7 are arranged at predetermined intervals in the X-axis direction with respect to one component material.

Next, the base material 1 is placed on the XY table 15 of the assembly device using a transport device (not shown). Then, as shown in FIG. 4, component materials 5a and 5b are placed on this base material 1 using a general-purpose robot.

Position 5C.

The assembly device 9 operates as follows.

Two holes 7 are provided at a predetermined interval in the component material 5a (see Fig. 1).
is provided. Therefore, the torch spacing of the welding device 23 is adjusted to this spacing. This interval adjustment work is performed by the servo motor MT using an NC device (not shown).
It is done by rotating.

Next, the XY table 15 is moved to match the position of the hole on one side of the component material 5a (the hole on the left in FIG. 5) with the position of the torch 258.

Thereafter, the elevating means 25b, 27b are operated to lower the torches 25a, 27a at the welding position 23, and the two holes 7 positions of the component material 5a are arc welded. Since welding is performed by heating and melting the protrusion 3 of the base material 1, the appearance of the product is not impaired.

After assembling the parts 58 as described above,
Next, the parts 5b and 5c are assembled in order to complete the entire work.

As described above, the assembly device 9 according to this embodiment can perform IQ work with the first and second press machines, general-purpose robots, etc., and can perform assembly work with high precision and high efficiency. It is possible. Moreover, since the hole 7 for temporary assembly can be used for arc welding to heat weld the protrusion 7, the aesthetic appearance of the product is not impaired.

[Effects of the Invention] According to the method of the invention in which the temporary assembly of the member to be assembled and the member to be assembled is performed using the protrusions and holes provided on both members, the temporary assembly of the member to be assembled is performed. This can be done with high precision using an appropriate simple machine or jig, and the assembly work can be done easily and efficiently.

Furthermore, according to the device of the present invention, in which the assembly work is performed by arc welding, it is possible to efficiently arc weld the hole positions formed for temporary assembly, and the aesthetic appearance of the product is improved. It is possible to do so.

[Brief explanation of drawings]

1 to 3 are explanatory diagrams showing an embodiment of the method of the present invention, FIG. 1 is a cross-sectional explanatory diagram showing the relationship between an assembly member and an assembled member, and FIG. A plan view showing an example of the state, and FIG. 3 is a side view thereof. FIGS. 4 and 5 are a plan view and a front view showing an embodiment of the device of the present invention. 1...Base material (member to be assembled) 3...Protrusion 5...Component material (assembly member) 7...Hole 9...Assembling device Fig. 1 Fig. 2 Fig. 3 Diagram C

Claims (3)

[Claims] (1) A protrusion or a hole is provided at a predetermined location on the assembly joint surface of the member to be assembled, and at a location opposite to the predetermined location on the assembly joint surface of the assembly member to be assembled to the assembly member. A hole or a protrusion corresponding to the protrusion or hole is provided, and the assembly member is assembled by aligning the hole or protrusion of the assembly member with the protrusion or hole of the member to be assembled. 1. A method for assembling an assembly member, characterized in that the position of the assembly member is determined, and then the assembly member is assembled to the member to be assembled using a predetermined assembly method. (2) The hole is a through hole, and the predetermined assembly method is to connect both the assembled member and the assembly member in an arc from the side of the member having the hole through the hole. A method of assembling an assembly member according to claim 1, which is a welding method. (3) It has a table on which to place the parts to be assembled on which the parts to be assembled have been temporarily assembled, and a plurality of arc welding torches whose intervals can be adjusted freely, and whose positions can be changed relative to the table surface. and a welding device that can approach and leave the table surface relatively.