JPH0134191B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bench centering device used in an automobile final inspection process.

For example, in the case of toe measurement in the final inspection process of a car, the car's wheels are placed on the bench of a measuring device.
However, since it is difficult to align the center of the car with the center of the stand, there are inconveniences such as the toe not being measured accurately. are doing.

The present invention has been made to improve this inconvenience, and the center of the vehicle can be easily aligned with the center of the platform by using the left and right protrusions of the floor side panels when the vehicle is mounted on a platform. To provide such equipment.

To explain this with reference to the illustrated embodiment, reference numeral 1 designates a machine base, and a horizontal shaft 2 is supported on the lower surface of the machine base 1 at right angles to the traveling direction of the automobile, and one end of the horizontal shaft 2 has a rotating arm. 3 is fixed, and the arm 3 is connected to the piston rod 5 of the lifting cylinder 4, and a support plate 6 is fixed to the upper surface of the horizontal shaft 2.
A pair of left and right swing arms 7 are provided on both sides of the plate 6.
7 is provided so that the pair of swing arms 7, 7 on both sides of the support plate 6 can be raised and lowered by the rotation of the horizontal shaft 2 which rotates as the piston rod 5 slides. The swinging arm 7 includes a first arm 7a that is pivoted on the support plate 6 via a support shaft 8 so as to swing from side to side, and a first arm 7a that is pivoted to the tip of the first arm 7a via a support shaft 9 for upward movement. The second arm 7 is pivotally supported.
b, the first arm 7a has a fixed plate 10 fixed to its base at a predetermined angle, and the plate 10 is connected to the intermediate plate 12 which is pivotally supported by the support plate 6 via the intermediate shaft 11. The piston rod 14 of the central drive unit 13 is connected to one end of the intermediate plate 12 and the other end is fixed to the center of the support plate 6.
Thus, the sliding movement of the piston rod 14 causes the swinging arm 7 to swing from side to side. The second arm 7b is formed into a rectangular arm consisting of left and right side plates and a top plate, and a spring 15 is interposed between the middle part of the top plate and the tip of the first arm 7a. The second arm 7b is formed to be bent in the vertical direction against the spring 15, and a contact piece 16 is provided at the tip of the second arm 7b to abut on the left and right protrusions a of the floor side panel of the automobile.
The corresponding piece 16 consists of a guide roller 16a that moves while abutting against the lower surface b of the floor, and an attachment 16b that abuts against and presses the protrusions a on the left and right sides of the floor side panel.
6a is a slidable rod 1 that is spring-loaded by a spring 17;
8 and its attachment 16
b is bracket 1 as shown in Figures 4 and 5.
The sliding plate 20 is formed with a rubber plate 21 attached to a sliding plate 20 that is slidably engaged with the sliding plate 9.
A projecting piece 22 protruding from the center of the lower surface is inserted between a pair of left and right guide plates 24, 24 which are inserted into the bracket 19 and are resiliently supported by a spring 23, so that the projecting piece 2
2 resists the spring 23 on either one of the guide plates 2
4, the sliding plate 20 slides left and right on the bracket 19, and its attachment 1
The impact and friction when 6b comes into contact with protrusion a are alleviated.

In the figure, 25 and 26 are a rising limit dot and a descending limit dot provided at the other end of the horizontal shaft 2, and 27
and 28 are limit switches provided opposite the raising and lowering limit dogs 25 and 26; 29 is an opening/closing limit dog provided on the intermediate plate 12;
30 is a limit switch provided opposite the dog 29, and 31 is a limit switch provided opposite the rod 18.

Next, to explain its operation, when a car is mounted on the machine platform 1, the lifting cylinder 4 is lowered from the state shown in FIG. The cylinder 4 contacts the limit switch 27 to confirm the operation of the cylinder 4, and then the cylinder 4 descends and rotates the horizontal shaft 2, which rotates the support plate 6 of the horizontal shaft 2.
The swinging arms 7, 7 attached to the oscillating arms 7, 7 rise to bring the guide roller 16a at the tip into contact with the lower surface b of the floor, and when the rod 18 to which the roller 16a is attached is lowered and comes into contact with the limit switch 31, it is centrally driven by the switch 31. The intermediate plate 1 is operatively connected to the piston rod 14 thereof.
2 to swing the swinging arms 7, 7 outward;
In this way, the guide roller 16a rolls on the lower surface of the floor and brings its attachment 16b into contact with the protrusion a to center the vehicle body.When the centering is completed, the opening/closing limit dog 29 provided on the intermediate plate 12 contacts the limit switch 30. When confirming this, the central drive section 13 stops operating, during which time measurements are taken on the machine stand, and upon completion of the measurements, the drive section 13 and the lifting cylinder 4 are operated to return to the starting position.

In this way, according to the present invention, a rotatable horizontal shaft 2 parallel to the rolls is provided at the bottom of the machine base 1 having rolls on which the wheels of an automobile are mounted, and the support plate 6 is connected to the horizontal shaft 2. A central drive section 13 that can move forward and backward in the front and rear directions, and a swingable left and right swinging arm 7 that is connected to the center drive section 13 via an intermediate plate 12 are provided. Since the swing arm 7 is provided with a guide roller 16a that comes into contact with the lower surface of the floor panel and an attachment 16b that comes into pressure contact with the left and right protrusions of the floor panel of the automobile, the swing arm 7 can be raised and lowered by the rotation of the horizontal shaft 2. The guide roller 16 at the tip
a is brought into contact with the lower surface of the floor panel, and is swung left and right by the forward and backward movement of the central drive section 13, and the attachment 16b at the tip is brought into pressure contact with the left and right protrusions of the floor panel, thereby centering the vehicle. Therefore, centering on the bottom surface of the floor panel can be performed properly, and centering mechanisms such as the horizontal axis 2 and swing arm 7 are installed at the bottom of the machine base 1, which obstructs various inspections after centering. It has the effect that there is no

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a plan view, Fig. 2 is a front view, Fig. 3 is a side view, and Fig. 4 is a plan view.
The figure is a partially cutaway front view of the attachment, and FIG. 5 is a sectional view taken along line AA in FIG. 4. 1... Machine base, 16... Piece, 16a... Guide roller, 16b... Attachment, 2... Horizontal shaft, 6... Support plate, 7... Swing arm, 1
2... Intermediate plate, 13... Center drive section.

Claims (1)

[Claims] 1. A rotatable horizontal shaft parallel to the rolls is provided at the lower part of a machine base having rolls on which the wheels of the automobile are mounted, and a central drive section is provided on the horizontal shaft that can move forward and backward in the front and rear directions via a support plate; A swingable left and right swinging arm connected to the center drive unit via an intermediate plate is provided, and a guide roller that contacts the lower surface of the floor panel of the car and a guide roller that comes into contact with the lower surface of the floor panel of the car are provided at the tip of the left and right swinging arm. A platform centering device for an automobile, comprising an attachment that presses against left and right protrusions.