JPS60159602A - Device for measuring work size - Google Patents

Abstract

PURPOSE:To perform automatically size measurement and selection of whole works by measuring the change rate of the size of the works separated to each one piece by the recess provided on an inlet side roll while rotating the same one turn then discharging the works by the recess of an outlet side roll. CONSTITUTION:Works 13 polished by a working machine are brought into contact with a roll 1 from the slope of an inlet side chute 7 and one piece thereof is separated by a recess 9 thereof. The work is then carried into the trough at the intermediate point of the inlet side roll 1 and an outlet side roll 2. A retaining device 4 descends to retain the work 13 by retaining rollers 3 at the bottom end thereby transmitting surely the rotating force to the work 13. A lateral measuring part 6 and an upper measuring part 5 contact the side face and top of the work 13 and in this state the work 13 makes one turn. The change rate of the size of the work 13 in this stage is measured and the size of the work 13 is calculated and displayed. The size is compared with a standard value and is decided for acceptance or rejection. A defective discharge port 11 is opened or closed according to the result of the decision.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for measuring the dimensions of continuously flowing cylindrical and columnar objects by separating them one by one.

Conventionally, cylindrical and cylindrical objects to be measured (hereinafter simply referred to as workpieces) are measured using a micrometer for three points: length, parallelism, and outer diameter, and chucking of the workpiece is used to measure end face runout. However, measurements were taken by rotating the product and applying a pick tester to the end face, but since the measurement required a lot of man-hours, sampling tests were performed. For this reason, there were problems such as the fact that it was impossible to ensure that all dimensions were measured.

The present invention solves the above-mentioned problems and at the same time measures the dimensions of the workpiece within the processing line, thereby quickly feeding back the measurement results to the processing machine and automatically measuring and sorting the dimensions of all processed products. The object of the present invention is to provide a device for measuring dimensions of workpieces.

The workpiece size measuring device of the present invention separates the workpieces that flow continuously through the input chute one by one using four parts provided on the input roll, and separates the workpieces into the input side chute and the output side a. - Load the workpiece into the inner chamber 111i of the workpiece, and while pressing the workpiece with the upper presser, apply the rotational force of the input and output rolls (both the input and output rolls have a common diameter and their rotational speeds are synchronized). ) is applied to the workpiece to rotate the workpiece once.

During this time, the amount of change in the dimensions of the workpiece is measured using a measuring section on the side and/or top surface of the rotating workpiece, and then the workpiece is discharged by the recessed portion of the output roll.

At the same time as discharge, the input roll separates the next workpiece from the input chute and carries it in.

An embodiment of the present invention will be described below with reference to the drawings.

First, two inlet rolls 1 and two outlet rolls 2 having the same diameter are arranged in parallel with a slight interval.

The circumferential length of the outer diameter of both rolls 1.2 is at least twice the circumferential length of the outer diameter of the workpiece, and desirably, the outer diameters of the two rolls are equal to each other. Each roll 1.2 is also provided with one recess 9.10. More information
An inlet chute 7 is installed close to the outer periphery of the roll 1 and is tilted toward the inlet roll 1 at a position higher than the horizontal position of the center of the inlet roll 1. An exit chute 8 is installed adjacent to the outer periphery of the exit roll 2 so as to be inclined rearward from a height position near the horizontal position of the center of the exit roll 2 .

Furthermore, a left and right measuring section 6 for the workpiece 13 is arranged at the upper part between the input side roll 1 and the output side roll 2, and above it, an upper measuring section 5 and a workpiece holding roller 3 arranged on the left and right sides are arranged.
．． 3 is attached to the tip (lower end), and a presser device 4 that can move up and down is installed. That is, two entry sides,
The output roll 1.2 has an inlet chute 7.8, an output chute 7.8, and above these a measuring section 5.6, a work holding roller 3.3, and the like are arranged.

Next, the operation will be explained.

The workpiece 13 polished by the processing machine rolls in the direction of the arrow on the inclined surface of the entry chute 7 shown in FIG. 1 and comes into contact with the entry roll 1 (FIG. 2). The entry roll 1 rotates in the direction of the arrow, receives one workpiece 13 in the recess 9, and separates the third workpiece.
(Fig. 1), and is carried into the valley at the midpoint between the input roll 1 and the output roll 2 (Fig. 1).

Then, the holding device 4 descends and presses the workpiece 13 with the holding roller 3.3 at the lower end, thereby reliably transmitting the rotational force of the input roll 1 and the output roll 2 to the workpiece 13. At this time, the left and right measuring parts 6 and the upper measuring part 5 hit the side and upper part of the workpiece 13 (Fig. 5), and in this state, the workpiece 213 is
Rotate. At this time, the amount of change in the dimensions of the workpiece 130 is measured, the dimensions of the workpiece 13 are calculated from this data, and the dimension data is displayed on a display (not shown) and compared with standard values to determine pass/fail. A determination is made, and based on the result, the opening/closing operation of the defective product outlet 11 shown in FIG. 1 is performed. Thereafter, the holding device 4 rises, and the left and right measuring sections 6 move away from the workpiece 13 and receive the workpiece 13 in the recess 10 of the exit roll 2 (FIG. 6). At this time, the entry roll 1 is separating and loading the next workpiece 13', and when this workpiece 13' reaches the measurement position (Fig. ftS4),
The ware 213 after the measurement is discharged into the discharge chute 8 (FIG. 7).

Thereafter, the object to be measured 13 is sorted into non-defective items and defective items depending on the state of the defective item discharge port 11, and if it is a defective item, it is discharged from one defective item discharge chute 12.

By continuously performing the above operations, it has become possible to automatically measure dimensions.

All movements of the above device except opening and closing of the defective product outlet are
It uses a single motor as its driving source, and operates continuously and synchronously using transmission systems such as cams, cranks, and timing belts. Furthermore, the timing of sampling during measurement is designed to be synchronized by linked encoders.

As explained above, by installing the device of the present invention in the processing line, dimensional inspection, which conventionally relied on sampling inspection, can automatically perform 100% dimensional measurement and sort out non-defective products from defective products based on the results. I) Now we can guarantee all product dimensions. In addition, since feedback to the processing machine can be quickly provided,
This makes it possible to minimize the occurrence of non-standard dimensions. In addition, the number of inspection steps can be reduced, resulting in a significant improvement in efficiency, which has a great effect on industry.

[Brief explanation of drawings]

FIG. 1 is a schematic front view of a work size measuring device showing an embodiment of the present invention, and FIGS. 2 to 7 are explanatory views of the operation of the device of the present invention shown in FIG. Entry side roll, 2: Output side roll, 3: Work holding roller, 4: Holding device, 5: Upper measuring section, 6: Left and right measuring section, 7
: Entry side chute, 8: Output side chute, 9: Concave part of entry side roll, 10: Four parts of exit side roll, 13: Work agent Patent attorney Takashi Honma l Figure 1t.

Claims (1)

[Scope of Claims] 1. An entry roll and an exit roll each having at least one four portions on the outer periphery and rotating in the same direction are provided close to each other with wheel centers parallel to each other, and an intermediate roll between the two rolls is provided. A left and right measuring section that contacts the left and right side surfaces of the workpiece, an upper measuring section that contacts the top of the workpiece, and a vertically movable holding device with a work holding roller attached to the lower end are provided above, and the input side roll A workpiece size measuring device characterized by having chutes inclined in the flow direction of the workpiece close to the entrance side and the exit side of the exit roll. 2. The outside diameter of the entrance roll and the exit roll The workpiece size measuring device according to claim 1, wherein the circumferential length is at least twice the circumferential length of the outer diameter of the workpiece.