KR20100132740A

KR20100132740A - Bearing inner·outer race heat treatment hardness and dimension inspection apparatus

Info

Publication number: KR20100132740A
Application number: KR1020090051499A
Authority: KR
Inventors: 송우곤
Original assignee: 송우곤
Priority date: 2009-06-10
Filing date: 2009-06-10
Publication date: 2010-12-20

Abstract

PURPOSE: A method for inspecting heat treatment hardness and dimension of the inner and outer races of a bearing is provided to rapidly perform inspection by continuously inspecting the heat treatment hardness about the inner and outer races of the bearing. CONSTITUTION: A loader(1) supplies an object. The object supplied from the loader is transferred through a conveyor(3). A transfer passes the object transferred by the conveyor through the upper side of a demagnetizer(5). A heat treatment hardness inspecting device(7) inspects the hardness of the object by using a high frequency. An outer race measuring device measures the outer race of the object transferred from the heat treatment hardness inspecting device. A width measuring device(9) measures the width of the object transferred by the outer race measuring device.

Description

Bearing inner and outer race heat treatment hardness and dimension inspection apparatus

The present invention relates to an inspection apparatus for automatically selecting the good quality by measuring the heat treatment hardness and the inner and outer diameter of the object to be mass-produced to the same standard, such as the inner and outer rings for supporting the ball or roller of the rolling elements of the bearing will be.

Bearings are standardized as general-purpose mechanical component parts, requiring a large number of products of the same standard.

Therefore, most of the production processes such as processing and assembly are automated.

Among the components constituting the bearing, the electric chain ball or roller is produced by a specialized manufacturer and is an outsourcing product of the bearing manufacturer. Therefore, its own quality inspection is unnecessary, but the inner and outer rings of the bearing are formed by cutting and hot forging from the bearing manufacturer. Since it is produced after grinding, it is necessary to conduct a thorough quality inspection for each processing step.

In the conventional quality inspection of the inner and outer rings of the bearing, the dimensional inspections such as the inner and outer diameters of the inner and outer rings were measured by an automated device, but the inspections such as heat treatment hardness were not automated.

Therefore, there was a problem that defective products can be mixed in the product produced by the sample inspection.

An object of the present invention is to be able to continuously inspect the heat treatment hardness and the inner and outer diameter dimensions of the inner and outer rings of the bearing in a lump, so that the inspection can be performed quickly and accurately, thereby improving productivity.

The present invention visually inspects the appearance of the inner and outer rings of the bearing on the workbench, and then automatically aligns the inner and outer rings in the deloader assembly to transfer the inner and outer rings to the conveyor to pass through a demagnetizer using a transfer to the magnetic properties of the inner and outer rings. After removing the inner and outer rings into the transfer one by one using a pusher, the transfer allows the inner and outer rings to undergo a hardness test by the heat treatment hardness tester, and then selects and removes the defective parts. After the selection of the defective goods again after the transfer to the alignment unit through the conveyor is configured to end the inspection, the inspection apparatus of the present invention is configured to be automatically controlled using a PLC.

The present invention enables to automatically inspect the heat treatment hardness and the inner and outer diameter of the inner and outer rings of the bearing produced in a large amount by one integrated inspection device to quickly and accurately sort the products, thereby improving the productivity of the bearing production process. It has the effect of improving.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of the present invention inner and outer ring heat treatment hardness and dimensional inspection apparatus, Figure 2 is a front view of Figure 1, Figure 3 is a side cross-sectional view of the thermal treatment hardness tester of Figure 1, Figure 4 is the outer diameter of Figure 1 It is a side sectional view of a measuring apparatus, and FIG. 5 is a side sectional view of the width measuring apparatus of FIG.

Prior to the detailed description of the present invention, a known configuration within the scope of not obscuring the gist of the present invention will be omitted or simplified to make the characteristic configuration of the present invention more clear.

As shown in FIGS. 1 to 2, the present invention provides a loader 1 for aligning and supplying the inner and outer rings of a bearing that is the object 2 to be measured, and the object 2 to be supplied from the loader. 3) and transfer A (4).

Transfer A 4 passes the measured object 2 through a rodless cylinder (not shown) to the upper surface of the demagnetizer 5 to cancel the magnetic force remaining in the measured object 2.

The measured object 2 through which the magnetic force is removed by passing through the demagnetizer 5 passes through the conveyor B 6, and is provided with a rodless cylinder provided in the transport path of the measured object 2 of the conveyor B 6 (Fig. The pusher 19, which is moved forward and backward, is supplied with a thermal hardness tester 7, an outer diameter measuring device 8, and a width measuring device 9 arranged in two rows on the upper surface of the testing device of the present invention. Each of the objects to be measured 2 is alternately pushed into the furnace.

Since the heat treatment hardness inspection device 7, the outer diameter measuring device 8 and the width measuring device 9 are arranged in a plurality of rows, it takes longer to stay in the inspection device for inspection than the speed conveyed by the conveyor or transfer. In order to increase productivity, the inspection apparatus is arranged in a plurality of rows.

The measured object 2 supplied by the pusher is transferred to the heat treatment hardness tester 7 by the transfer B 10 provided in the supply passage.

The heat treatment hardness inspection apparatus 7 is placed on the tool 11 in a state where the measurement object 2 is positioned between the tool 11 and the tool 12 and sandwiched by the guide cylinder 13 as shown in FIG. 3. The high frequency is applied and the change of the high frequency wavelength transmitted to the tool 12 through the object 2 is measured, and the crack or hardness of the object 2 is measured. It is possible to apply Insite HT devices.

Defects that do not meet the standard value of the heat treatment hardness test are pushed out of the conveying path by a pusher (not shown) operated by an air cylinder (not shown) and removed from the transfer path. It is transferred to the outer diameter measuring device (8).

The outer diameter measuring device 8 places the object to be measured between the jig 16 and the fixed jig 17 provided in the dog 15 moving forward and backward by the compact cylinder 14 as shown in FIG. After measuring the dimensions with the dial gauge 18 to determine the quantity and part, the defective product is removed by removing it from the conveying path.

The width measuring device 9 places the object 2 to be conveyed from the outer diameter measuring device 8 as shown in FIG. 5 between the shaft 20 and the tool die 21 and the compact cylinder 14 '. The dial gauge 19 'is operated by the shaft 20 moving up and down along the LM guide 22 by measuring the width and judging whether it is good or bad.

If the measurement result of the width is determined to be defective, it is transferred to the conveyor C 24 through the defect extraction process of removing the defective product from the conveying path, and the conveyor C 24 is inspected in both inspection rows and determined to be good. Combine (2) and transfer it to the alignment table 25.

The alignment table 25 aligns and loads the measurement object 2 which is inspected and determined to be good in a transfer box so as to be transferred to the next process.

The operation part of the inspection apparatus of the present invention is automatically controlled by the PLC.

The present invention can be applied to the process of screening components in the bearing production process to screen the good quality.

1 is a plan view of the bearing inner and outer ring heat treatment hardness and dimensional inspection apparatus of the present invention

FIG. 2 is a front view of FIG. 1

3 is a side cross-sectional view of the heat treatment hardness inspection apparatus of FIG.

4 is a side cross-sectional view of the outer diameter measuring device of FIG.

5 is a side cross-sectional view of the width measuring device of FIG.

[Description of Drawings]

1. Loader 2. Object to be measured

3. Conveyor A 4. Transfer A

5. Demagnetizer 6. Conveyor B

7. Heat treatment hardness tester 8. Outer diameter measuring device

9. Width Measuring Device 10. Transfer B

11.Tool 12.Tool

13. Guide cylinder 14,14 '. Compact cylinder

15.Dog 16.Jig

17. Fixing Jigs 18,18 '. Dial gauge

19. Pusher 20. Shaft

21. Tool Die 22. LM Guide

24. Conveyor C 25. Alignment Table

Claims

A loader 1 for supplying the object 2 to be measured;

Conveyor A (3) for transporting the measured object (2) supplied from the loader ;,

Transfer A (4) for passing the measured object (2) conveyed from the conveyor A (3) to the upper surface of the demagnetizer (5);

A pusher 19 for alternately supplying the measured object 2 that has passed through the demagnetizer 5 to the conveying path of the inspection apparatus provided in two rows during conveyance via the conveyor B 5;

Heat treatment hardness inspection device 7 for checking the hardness of the object to be supplied by the pusher 19 using a high frequency;

An outer diameter measuring device (8) for measuring the outer diameter of the measurement target object (2) to be inspected and conveyed by the heat treatment hardness inspection device (7);

A width measuring device 9 for measuring the width of the object 2 to be inspected and conveyed by the outer diameter measuring device 8;

Conveyor C (24) for conveying the combined width of the two objects to be measured 2 measured in width;

An inner and outer ring heat treatment hardness and dimensional inspection device for bearings, characterized in that for aligning and storing the measured object (2) transferred from the conveyor C (24).