JPS62116366A - Long work assembling device - Google Patents

Abstract

PURPOSE:To assembly a long work simply and easily by constituting a table supported in free elevation into the upper part of a supporting base in slidable ways and installing a positioning device and an installation device onto the upper surface of the table. CONSTITUTION:A long Work assembling device 2 is arranged under a basic member 1, and in said device 2, a lift base 4 is supported in free elevation through a lift cylinder 5 into the upper part of a dolly 3. In this case, slide tables 9 and 13 are arranged in lamination through rails 7 and 11 in the direction crossing each other at right angles onto the upper surface of the lift base 4, and a turntable 26 is supported through a bearing 15 at the center part of the slide table 13. A pair of positioning pins 18 and 18' are installed in free elevation independently each other onto the upper surface of the turntable 16, and an installation device 24 is installed in slidable ways through a rail 20 and a bearing 23 by a cylinder 22.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to the technical field of devices for assembling long workpieces used in automobile assembly lines and the like.

Therefore, the present invention relates to a long workpiece assembling device for attaching a long workpiece such as a 7-well ψ brake tube from below to a base material such as the body of an automobile being conveyed on a line. A table is supported via an actuator to be able to move up and down on the upper part of a support base such as a trolley that is transported in synchronization with the upper base material, and is slidable in the direction of the surface of the table. , a long workpiece mounting device equipped with a plurality of mounting devices having functions such as bolting a long workpiece to a base material, and a pair of positioning pins that can be raised and lowered independently of each other. This invention relates to a length work assembling device.

<Prior art> As is well known, when attaching a long workpiece such as a 7-well φ brake tube to a base material such as an automobile body, a worker uses an impact wrench or the like to
An arrangement is adopted in which each fuel brake tube is tied together with a clamper that is tightened with a bolt.

However, in this case, the worker has to perform the above-mentioned work from the bottom of the body, and the work to be installed is long, making the installation extremely difficult. As the assembly involved multiple parts, considerable skill was required of the worker.

In recent years, in order to cope with this problem, assembling devices for long workpieces have been actively studied.

<Problems to be Solved by the Invention> However, in the conventional long work assembly example described above, it is extremely difficult to synchronize the apparatus with the body of a car that is continuously conveyed. This method has the disadvantage that the tightening positions of bolts, etc. are often misaligned, and reliable automatic tightening cannot be performed.

Furthermore, when setting the workpiece at a predetermined position on the body being transported, there is also the problem that the workpiece is likely to interfere with the body or the support device due to the long length of the workpiece.

The purpose of this invention is to solve the problems of the long workpiece assembling apparatus based on the above-mentioned prior art as a technical problem to be solved, and to make it possible to smoothly and accurately attach a long workpiece to a base material. It is an object of the present invention to provide an excellent long workpiece assembling device that can quickly respond not only to differences in the attachment position depending on the base material, but also to be useful in fields where automatic assembly technology is used in various industries. .

<Means/effects for solving the problems> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned claims, is to provide support below the base material being conveyed on the line. After setting the base, the table provided at the top of the support base is raised via an actuator, and then the table is set in a state where it can slide appropriately in the direction of its surface, the first positioning pin is raised, and the After fitting into the specified part of the material and setting the approximate position relative to the base material at a glance,
The second positioning pin is raised and rotated around the first positioning pin to fit and fix it to the base material to set the normal position, and after that, a plurality of long work pieces provided on the top surface of the table are set. This is a technical measure that allows the elongated workpiece, which is secured to the attachment device, to be assembled at a predetermined position on the base material.

<Example> Next, an example of the present invention will be described below based on the drawings.

As shown in FIG. 1, an automobile body 1 as a base material is conveyed continuously in its longitudinal direction (hereinafter referred to as one direction) on the side of the line and below the body 1. A long workpiece assembling device 2 is provided.

As shown in Figure 2.3, the long workpiece assembly device 2 is
It has a cart 3 as a support at the bottom, which is movable below the body 1. A lift base 4 is provided on the top of the cart 3, and the lift base 4 serves as a lift as an actuator attached to the cart 3. Stay 6 on the rod of cylinder 5
It is supported so that it can be raised and lowered freely.

A rail 7 in the L direction is attached to the upper surface of the lift base 4, and a slide cheeple 9 in the L direction is slidably provided on the rail 7 in the L direction via a bearing 8 that engages with the rail 7. There is.

The centering and fixing of the slide table 9 in the L direction is performed by a centering cylinder 10 installed horizontally between the slide table 9 and the lift base 4.

Also, the body 1 is placed on the top surface of the slide table 9 in the sliding direction.
A rail 11 in the W direction is attached in the width direction (hereinafter referred to as W direction), and a slide table 13 in the W direction is mounted on the rail 11 in the W direction via a bearing 12 that engages with the rail 11 in the W direction.
is slidably provided.

The centering and fixing of the slide table 13 in the W direction is performed by a centering cylinder 14 provided between the slide table 9 in the L direction.

Furthermore, a rotary table 16 is supported at the center of the W-direction slide table 13 via a bearing 15, and a steady rest cam having a roller or the like that rolls into contact with the W-direction slide table 13 is mounted on the lower surface of the rotary table 16. follower 17
is attached.

Further, a first positioning pin 18 is disposed upwardly on a part of the rotary table 16 via a cylinder serving as a lifting device (not shown), and a first positioning pin 18 is provided at a setting portion spaced apart from the positioning pin 18 by a predetermined distance. A positioning pin 18' is disposed upward via another cylinder as a lifting device (not shown), and each moves up and down independently. , 39.

Note that the rotary table 16 has a centering cylinder 19.
is arranged, and the above-mentioned centering cylinder 10.1
Similarly to 7, centering and fixing are performed by the centering cylinder 19.

And in this way the centering cylinder 10.1
The positioning pins 18 and 18' constitute positioning devices for the body and the assembly device 2, respectively.

A predetermined number of stays 21 are disposed on the upper surface of the rotary table 16, a rail 20 is disposed on the upper surface, and a rail 20 is further disposed on the upper surface as a mounting device via a bearing 23. A tightening device 24 is erected and is slidable on the rail 20 by a cylinder 22 for moving the tightening position.

As shown in FIG. 4, the tightening device 24 has a low rear actuator 26 attached to the rod of a guided cylinder 25, and a tightening cylinder 28 attached to a bracket 27 that rotates via the rotary actuator 26.
Further, a tightening module 2 is attached to the tightening cylinder 28.
9 is attached.

A nut runner 30 is provided at the base of the tightening module 29, and a bolt holder 31 is provided at the tip side, and a bolt 32 fitted into the bolt holder 31 is attached to a fuel brake tube 33, 33, which is a long workpiece.
... are made to match the bolt holes 36 of the clamper 35 of the bundled subassembly 34.

Note that the bolt hole 36 of the clamper 35 is formed into a long hole shape in consideration of the installation error of the bolt 32.

In the above configuration, after the hydraulic pump (not shown) of the long work assembly device 2 is set along the conveyance line of the automobile body 1, the bolts 32 are set in the bolt holders 31 of each tightening module 29, and the fuel brake The bolt hole 3 of the clamper 35 of the subassembly 34 in which the tubes 33, 33... are assembled in a bundle
6 is applied to the bolt 32.

Next, the trolley 3 is moved to the line center below the car body 1 being transported on the line, and the body 1
When the synchronization start position is reached, the long workpiece assembly device 1
starts synchronous transport.

At this time, since the lift base 4 is movable up and down via the lift cylinder 5, the subassemblies 34 of the fuel/brake tubes 33, 33, etc. can be inserted smoothly without interfering with the lower side of the body 1. Not only that, but it can also be raised to the closest position for work.

Thereafter, the lift cylinder 5 extends and the lift base 4 rises and reaches the rising end, and the positioning pin 18 rises and is fitted into the engagement hole 38 of the body 1.

At this time, the rod end (not shown) of the centering cylinder 1G in the direction is fixed to the slide lever 9 in the [direction], and at the same time, the centering cylinder 10 is unlocked and becomes a driving source, and at the same time, each of the centering cylinders 1G in the W direction and the rotation direction Centering cylinders 14.19 are also unlocked.

Next, when an appropriate driving force is applied to the slide table 9 in one direction by the centering cylinder 10 in the L direction,
The rotary table 16 above it starts turning around the first positioning pin 18 fitted into the engagement hole 38 of the body 1, but at this time, the fuel brake tube 33 held by the tightening device 24 naturally If the sub-assembly 34 of .33... turns integrally and a protrusion 40 is formed on the lower surface of the body 1 as shown in FIG. 5, the position of the protrusion 40 is determined in advance. By setting the position of the tightening device 24 that holds the subassembly 34 in the case, the subassembly 34 assembled to the body 1 can smoothly avoid interference with the protrusion 40 by turning in the direction of the arrow. and then move it to the second position at the normal position.
The positioning pin 18' is fitted into the engagement hole 39 of the body 1 and set.

Next, the guided cylinder 25 of each tightening device 24 is extended, and the tightening module 29 raises the subassembly 34 to the vicinity of the tightening position of the body 1. When the predetermined position is reached, the bolt holder 3 is moved by the nut runner 30.
Rotate 1.

When the bolt holder 31 rotates, the tightening cylinder 28 expands, thereby tightening each tightening module 2.
9 moves forward, and the port assembly 34 is securely fastened to the body 1 by the port 32 held by the bolt holder 31.

In this case, even if the tightening position is tilted and slightly different, the tightening direction of the tightening module 29 is adjusted by the rotary actuator 26 and the cylinder 22.
In addition, since the position can be changed freely, it can be adjusted appropriately no matter what type of car it is.

In this way, after completing the tightening, the nut runner 30 is stopped and the tightening cylinder 28 is
After retracting the guide cylinder 25, the first positioning pin 18 and the second positioning pin 18
', and center and fix the slide table 9 in the L direction, the slide table 13 in the W direction, and the rotary table 16 with centering cylinders 10, 14, and 19, respectively.
The tightening module 29 is connected to the rotary actuator 26
The lift cylinder 5 is retracted to pull out the truck 3 to the side of the line, and the work is completed.

The bodies 1 that are sequentially transported in this way
On the other hand, operations similar to those described above are continuously performed within the conveyance line of the body 1.

It should be noted that the embodiments of the present invention are of course not limited to the above-mentioned embodiments. For example, the application is not limited to an automobile body assembly line, and the application is not limited to a tightening device but a caulking device. Various aspects can be adopted, such as being able to be used against other people as well.

<Effects of the Invention> As described above, according to the present invention, basically, the extremely complicated work of assembling long workpieces can be performed smoothly and reliably, and the workability is dramatically improved. It has an excellent effect of improving

That is, a table supported on the upper part of a support base via an actuator so as to be freely raised and lowered is slidable in the surface direction of the table, and is held by a positioning device having a pair of positioning pins that can be raised and lowered independently on the table. When setting a workpiece below the base material, the table is lowered and inserted below the base material.
Next, the workpiece is set by raising the table, once setting the approximate position with the first positioning pin, and then setting it in the normal position with the second positioning pin within the rotation movement around the first positioning pin. By forming a track, protrusions on the base material are reliably avoided, and as a result, an excellent effect is achieved in that it is possible to smoothly and reliably attach a long workpiece.

Furthermore, by arranging multiple attachment devices for long workpieces on the top surface of the table, long workpieces can be attached in one operation, which has the excellent effect of significantly shortening the work time. .

[Brief explanation of drawings]

The drawings show embodiments of the invention, and include sections 1.2.
5 is a plan view, FIG. 3 is a front view, and FIG. 4 is an enlarged partially sectional front view. DESCRIPTION OF SYMBOLS 1... Base material, 34... Long workpiece, 2... Long workpiece assembly device, 3... Support stand, 16...
Table, 18.18'...Positioning device, 29...Mounting device

Claims (1)

[Claims] In a long work assembling device that attaches a long workpiece from below to a base material being conveyed on a line, a table supported so as to be able to rise and fall on the top of a support base that is conveyed in synchronization with the base material is oriented in the plane direction of the table. A long workpiece assembly characterized in that a positioning device having a pair of positioning pins that can be freely slid and moved up and down independently of each other and a plurality of long workpiece mounting devices are held on the upper part of the table. Device.