JPS5842401B2 - Dimension measuring device for circular products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dimension measuring device that can automatically and efficiently measure the dimensions of a necessary portion of an annular object such as a wheel during or after cutting on a cutting transfer line.

Conventionally, in this type of dimension measurement, the ring-shaped product was removed from the cutting line and moved to the measurement location, where the measurement tool was manually applied to each one, which was extremely inefficient, had low accuracy, and required a large number of measurements. It required the number of personnel.

The present invention has been made in view of the above circumstances, and will be explained below based on drawings showing embodiments thereof.

Reference numeral 1 denotes a machined wheel that is an annular object to be measured, and 2 a conveyor device consisting of a drive roller conveyor that transports the wheel 1 in a horizontal manner. It has an opening 2a.

Reference numeral 3 denotes a downward measuring device disposed below the conveyor device, and is configured as follows.

That is, 4 is an elongated rotary table having a size that allows it to pass through the opening 2a, and the center of rotation of the rotary table is aligned approximately with the center of the opening 2a.

5a and 5b are probes provided on the upper surface of the quadrilateral table 4.

Of these, the diameter measuring tip 5a has a slide groove 4a formed at its lower end on the top surface of the rotary table over approximately half its length in the longitudinal direction.
It is mounted so that it can follow the movement in the radial direction.

The lower end of the other thickness measuring element 5b is movable in the radial direction within a slide groove 4'a formed over approximately the other half length of the top surface of the rotary table, and is temporarily fixed at a position required for measurement. It is installed so that it can be used.

However, the thickness measuring element 5b may be fixed at a predetermined position.

Reference numeral 6 denotes a vertical drive mechanism consisting of an air cylinder for raising and lowering the rotary table 4, and the rond itself also serves as a rotary table support shaft 6a.

7 is a rotational drive mechanism for rotating the rotary table support shaft 6a, 7a is a gear that meshes with the spline portion 6b of the support shaft;
is the motor that drives this.

8 is an upper measuring device, which is constructed as follows.

That is, reference numeral 9 denotes an elongated thick plate-shaped rotating member, which is placed above the conveyor device 2 so that its center of rotation coincides with the center of the rotary table 4 of the downward measuring device.

10a, 10b, 10c, and 10d are measuring elements provided on the lower surface of the rotating member 9.

Among these, the diameter measuring elements 10a and 10c are attached at their lower ends to slide grooves 9a and 9'a, respectively, formed on the lower surface of the rotating member over approximately half the length in the longitudinal direction, so as to be able to follow the diameter in the radial direction.

The other thickness measuring elements 10b and 10d are mounted such that their lower ends are movable in the radial direction within the slide grooves 9a and 9'a and can be fixed at positions required for measurement.

This may also be permanently fixed in place.

Reference numeral 11 indicates a rotation shaft of the rotating member, and 12 indicates a motor for driving the rotating member 9.

Reference numerals 13 and 13 designate a pair of left and right annular clamping devices disposed oppositely on both sides of the opening 2a in the conveyor device, and each clamping device 13.13 is constructed as follows.

That is, 14.degree. 14 is a planar V-shaped clamping tool for horizontally clamping the wheel 1.

Reference numerals 15 and 15 denote a horizontal drive mechanism consisting of an air cylinder for moving the clamping tool 14.14 back and forth along a horizontal line toward the conveyor device 2, and the clamping tool 14.14 is provided at the tip of the rod. ing.

Reference numeral 16.16 denotes a movable base on which the horizontal drive mechanism 15, 15 is fixed, and one end of the movable base 16, 16 is slidably attached to the pillars 17, 17 of the machine frame. .

18.18 is a vertical drive mechanism consisting of an air cylinder for raising and lowering the movable base 16.16 equipped with a horizontal drive mechanism 15.15, and the tip of the rod is connected to the movable base 16.
．． It is connected to the central part of 16.

A pair of left and right holding devices 13, 13 configured as described above
Of course, these are automatically controlled so that the center of the annular mass (wheel) 1 held by the respective holding tools 14, 14 is aligned with the center of the rotary table 4 of the downward measuring device.

19. Reference numeral 19 is a stopper provided on the pillars 17, 17 of the machine frame, which positions the movable base 16.16 to rise.

A method for measuring dimensions of a wheel using the dimension measuring apparatus of the present invention configured as described above will be explained as follows.

Initially, the rotary table 4 of the downward measuring device is located below the conveyor device 2 as shown by the chain line in FIG. 1, and as shown in FIG. matches.

Then, the cut wheel 1 is transferred over the conveyor device 2 which is placed horizontally with its back side facing upward, and when it comes to the opening 2a position as shown by the chain line in FIGS. 1 and 2, the conveyor device 2 stops.

When a photoelectric or similar detection device (not shown) detects that the wheel 1 has come to the opening 2a position, the clamping device 13.13
Air cylinder ronds serving as horizontal drive mechanisms 15, 15 move forward and clamp the circumferential surface of the wheel 1 from both the left and right sides.

At this time, even if the center of the wheel 1 is shifted from the center of the rotary table 4 and is sent onto the opening 2a of the conveyor device,
As described above, due to the automatic centering action of the clamping devices 13, 13, when the wheel 1 is clamped, its center automatically coincides with the center of the rotary table 4.

Next, when a detection device (not shown) detects that the wheel 1 is clamped, the air cylinder serving as the vertical drive mechanism 18°18 is activated to raise the movable platform 16.16.
It stops when it reaches the stopper 19.19 position.

As a result, the wheel 1 is lifted upward, and the thickness measuring stylus 1 of the rotating member 9 of the upper measuring device, whose position has been adjusted in advance so as to come into contact with the boss side end face and the rim side end face on the back side of the wheel 1, is lifted upward.
0b and 10d are in contact with each other.

Subsequently, the diameter measuring elements 10a and 10c of the rotating member 9 move in the centripetal direction and come into contact with the tread surface of the wheel 1 and the outer peripheral surface of the boss.

Next, the air cylinder serving as the vertical drive mechanism 6 operates to raise the rotary table support shaft 6a.

The diameter measuring element 5a of the rotary table 4 abuts on the outer peripheral surface of the boss on the front side of the wheel 1, and the thickness measuring element 5b abuts on the end surface on the front side of the boss.

As described above, the probes 5a, sb, 10a-1
The dimensions are measured by rotating the rotary table 4 and rotating member 9 with the OA in contact with each measurement location of the wheel 1.

Data from each probe is input to a computing device and a digital device (not shown), so that any abnormality in the process is immediately displayed.

When the measurement is completed, the wheels 1 are returned to the conveyor device 2 by the reverse operation, and those that are normal are sent to the next process, and those that are abnormal are fed back.

As described above, according to the measuring device of the present invention, it is possible to measure the dimensions of the necessary parts of annular products such as wheels on the cutting line, and because the measurement is performed automatically, the measurement work can be carried out with high efficiency. , labor savings, and accuracy can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view schematically showing the device of the present invention;
The figure is a plan view schematically showing a conveyor device, a clamping device, and a downward measuring device in the apparatus of the present invention. 1...Wheel (annular product), 2...Conveyor device, 2a...Opening, 3...Downward measuring device, 4...・Rotary table, 5a, sb...
...Measure head, 6...Vertical direction drive mechanism, 6
a... Rotating table support shaft, 7... Rotating drive mechanism, 8... Upper measuring device, 9... Rotating member, 10a, 1 ob, 10c , 101
F・−+− measuring head, 12...Rotating member drive motor, 13...Annular article holding device, 14...
...Holding tool, 15...-Horizontal drive mechanism, 18
...Vertical drive mechanism.

Claims (1)

[Claims] 1. A conveyor device that makes it possible to transfer annular objects such as wheels in a horizontal state, and has long openings in the transfer direction in the center of the transfer path at appropriate locations, and a diameter measuring element that can follow the movement in the radial direction. A slender rotary table having a fixed or radially movable thickness measuring element (single or plurality) on its upper surface and having a size that can pass through the opening; and a rotary drive mechanism that rotates a rotary stand support shaft of the vertical drive mechanism, and the rotation center of the rotary stand is aligned with approximately the center of the opening so that the conveyor device is moved downwardly. A rotating member having a downward measuring device arranged therein, a diameter measuring element (single or plurality) that can follow in the radial direction, and a thickness measuring element (single or plurality) that can be fixed or movable in the radial direction, and its rotation mechanism. an upper measuring device disposed above the conveyor device such that the center of rotation of the rotating member matches the center of the rotating table of the lower measuring device; 5 clamping eyes for horizontally clamping the annular article, a horizontal drive mechanism for moving the clamping tool back and forth along a horizontal line toward the conveyor device, and the horizontal drive mechanism. Dimensions of an annular article comprising a vertical drive mechanism for raising and lowering the annular article, and a pair of left and right annular article holding devices capable of aligning the center of the annular article held by the left and right clamping tools with the center of the rotary table of the downward measuring device. measuring device.