JPS61220981A - Long work setting device - Google Patents

Abstract

PURPOSE:To improve setting operatability for a long work ever so better, by installing a liftable table in the surface direction free of slide motion, while setting up plural setting devices on the top of this table, in a case of a car assembling line which sets the long work to a base material from the downside. CONSTITUTION:This setting device 2 to be set up in a lower part of a body 1 at the sidepiece of an assembling line conveying a car body (base material) 1 in a longitudinal direction installs a lift base 4 on an upper part of a shiftable truck 3 as a support block, and makes this lift base go up or down with operation of a lift cylinder 5 installed in the truck 3. Both L and W directional slide tables 9 and 13 are slidably installed on the top of this lift base 4, while a rotary table 16 is rotatably supported on the top of the slide table 13. And, clamping devices 24 as plural setting devices supported by stays 21 being slidden along a rail by a cylinder are erected on an upper surface of this rotary table 16.

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 vehicle assembly lines and the like.

This invention provides seven points from the bottom to a base material such as a vehicle body.
This invention relates to a long workpiece assembling device for attaching a long workpiece such as a brake tube, and in particular,
A table supported on the upper part of a support base such as a trolley so as to be freely raised and lowered via an actuator is provided so as to be slidable in the direction of the surface thereof and has a positioning device, and a long workpiece is fastened to the base material on the upper surface of the table. This invention relates to a long workpiece assembly device in which a plurality of attachment devices having the following functions are provided.

<Prior art> As is well known, when attaching a long workpiece such as a 7-well brake tube to a base material such as a vehicle body, a worker uses an impact wrench etc. to attach each 7-well brake tube. An arrangement is adopted in which a clamper to which the tubes are tied is tightened with bolts.

In this case, the worker must perform the above-mentioned work from the underside of the vehicle, which is difficult since the work to be installed is long, and requires enough space to avoid interference with the long work. However, since the work involved assembling the vehicle needle while it was being transported, the work required skill.

To cope with this problem, assembling devices for performing the above-mentioned assembling work have been studied.

<Problems to be Solved by the Invention> However, with the long workpiece assembling apparatus of the prior art described above, it is extremely difficult to synchronize with the body of a vehicle that is continuously conveyed, and the tightening position is There was a drawback that automatic tightening could not be performed because of the looseness.

Additionally, if the tightening hole on the vehicle body side and the hole in the clamper did not match accurately, there was no mechanism to adjust this, so the tightening was performed when the two did not match. In some cases, the bolts may become twisted, resulting in poor tightening.

In addition, because the mechanism for holding the bolts was not sufficient, the orientation of the bolts was inconsistent, making it impossible to tighten them smoothly.

The purpose of the present invention is to solve the technical problem of the long workpiece assembling device based on the above-mentioned prior art, and to make it possible to smoothly and accurately attach a long workpiece to a base material. Needless to say, it is an object of the present invention to provide an excellent long workpiece assembling device that can quickly respond to differences in the attachment position depending on the base material and that is useful for workpiece assembling applications 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 that a support is set below the base material. After that, the table provided on the top of the support base is raised via an actuator, and then the table is slid in the direction of its surface and set via a positioning device, thereby allowing the plurality of long lengths provided on the top surface of the table to be moved up. This is a technical measure that allows a long workpiece, which is fixed to the workpiece attachment device, to be assembled at a predetermined position on the base material.

<Embodiment - Configuration> Next, an embodiment of the present invention will be described below based on the drawings.

As shown in FIG. 1, the vehicle body 1 as a base material is placed on the side of the line where the vehicle body 1 is continuously conveyed in its longitudinal direction (hereinafter referred to as the "downward direction") 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
has a trolley 3 as a support base at the bottom, which is movable below the body 1, and a lift base 4 is provided on the upper part of the trolley 3, and a rod of a lift cylinder 5 as an actuator attached to the trolley 3. It is supported by a stay 6 that is connected to the main body so as to be movable up and down.

An L-direction rail 7 is attached to the top surface of the lift base 4,
An L-direction slide table 9 is slidably provided on the vertical direction rail 7 and has a lower stage bearing 8 that engages with the L-direction slide table 9.

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

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

Note that centering is performed by a centering cylinder 14 provided between the centering of the W direction slide table 13 and the fixed edge direction slide table 9.

A rotary table 16 as a rotatable table is supported at the center of the W-direction slide table 13 via a bearing 15.

Incidentally, a cam follower 17 for steady rest having a roller or the like that rolls into contact with the W-direction slide table 13 is attached to the lower surface of the rotary table 16.

A positioning pin 18 is provided upward on the rotary table 16, and is adapted to be engaged with an engaging portion (not shown) of the body 1 together with the positioning pin 18 provided on the cart 3.

Note that the rotary table 16 is provided with a centering cylinder 19 for centering and fixing the rotary table 16.

The centering cylinder 10.14.19 constitutes a positioning device in the mW rotational direction, and the positioning pin 18.18 constitutes a positioning position for the body and the assembly device 2.

Therefore, a rail 20 is provided on the upper surface of the rotary table 16.
A stay 21 provided with a stay 21 and a rail 20 are arranged at predetermined positions, and tightening devices 24, 24, . has been done.

As shown in FIG. 4, the tightening device [24 is a mounting device in which a rotary actuator 26 is attached to the rod of a guided cylinder 25, and a bracket 27 that rotates via the rotary actuator 26 is connected to the bracket 27 via a tightening cylinder 28. A tightening module 29 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 7-well brake tube 33 as a long workpiece. .3
Clamper 35 of subassembly 34 where 3 is tied together
The bolt holes 36 are aligned with each other.

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

<Embodiment - Effect> In the above-described configuration, after setting the hydraulic pump (not shown) of the long work assembly device 2 along the conveyance line of the vehicle body 1, the bolts 32 are set in the bolt holders 31 of each tightening module 29. Then, the bolt hole 36 of the clamper 35 of the subassembly 34 in which the fuel/brake tubes 33, 33, etc. are bound and assembled is fitted into the bolt 32.

Next, the trolley 3 is moved to the line center below the body 1 of the vehicle being transported, and when the body 1 reaches the synchronization start position, the long work assembly device 11 is transported synchronously.

At this time, since the lift base 4 is movable up and down, the fuel/brake tube assembly 3
4 can be inserted into the lower side of the body 1 without interfering with the body 1, and can be raised to the closest position during work.

Then, the lift cylinder 5 is extended, the lift base 4 is raised, and the centering cylinder 10.14.19
is released, and the rotary table 16 is free in the L direction, W direction, and rotational direction, and each bearing 8.12.
15. The cam follower 17 creates a smooth floating state, and in this state the operator moves the positioning bin 18
．． 18 to the specified position on body 1, and then
Finish positioning for.

Next, the guide cylinder 25 of each tightening device @24 is extended, and the tightening number 4 module 29 raises the subassembly 34 to the vicinity of the tightening position of the body 1.
When the bolt holder 31 reaches the predetermined position, the bolt holder 31 is rotated by the nut runner 30.

When the bolt holder 31 rotates, the tightening cylinder 2
8 is extended, each tightening module 29
moves forward, and the subassembly 34 is moved to the body 1 by the bolt 32 that is securely held by the bolt holder 31.
be tightened.

In this case, even if the tightening positions are tilted and different, the rotary actuator 26 and the cylinder 22
Since the tightening direction and position of the tightening module 29 can be freely changed, adjustments can be made for any type of vehicle.

In this way, after completing the tightening, the nut runner 30 is stopped and the tightening cylinder 28 is
After retracting the guided cylinder 25, the positioning bin 18.18 is released, and the horizontal slide table 9, the W direction slide table 1.3, and the rotary table 1 are moved.
6 are centered and fixed by centering rings 10, 14, and 19, respectively, the tightening module 29 is returned to its original position by the rotary actuator 26, the lift cylinder 5 is retracted, and the truck 3 is pulled out to the side of the line to complete the work.

For the bodies 1 that are sequentially transported in this way,
Perform the same operations as above.

Other Embodiments It should be noted that the embodiments of the present invention are of course not limited to the above-mentioned embodiments, and are not limited to vehicle body assembly lines, nor are they applicable to tightening devices. Numerous embodiments can be adopted that can also be used for caulking devices.

<Effects of the Invention> As described above, according to the present invention, the extremely complicated work of assembling long workpieces can be performed smoothly and reliably, and the workability can be improved. The effect is produced.

In addition, a table supported on the upper part of the support base via an actuator so as to be freely raised and lowered is provided so as to be slidable in the surface direction of the table, and also has a positioning device, so that the support base can be inserted below the base material. If you lower the table when doing this, it will not interfere with the base material, and the work of sliding the table and positioning will be extremely smooth, and the positioning will be extremely easy. This has the excellent effect of allowing accurate work to be done without placing any burden on the operator.

Furthermore, since a plurality of attachment devices for long workpieces are provided on the table top surface, the long workpieces can be attached in one operation, which provides an excellent effect of significantly shortening the working time.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and Fig. 1 is a plan view of the working situation, Fig. 2 is a plan view, Fig. 3 is a front view, and Fig. 4 is a plan view of the working situation.
The figure is a partially enlarged front view. DESCRIPTION OF SYMBOLS 1... Base material, 34... Long workpiece, 2... Long workpiece assembly device, 3... Support stand, 5... Actuator, 16... Table, 10, 14.1
8.19...Positioning device, 29...Mounting device

Claims (1)

[Claims] In a long work assembly device that attaches a long work to a base material from below, a table supported on the upper part of a support base so as to be able to rise and fall freely via an actuator is provided so as to be slidable in the surface direction of the table, and a positioning device is provided. 1. A long workpiece assembling device comprising: a plurality of long workpiece attaching devices disposed on the top surface of the table.