KR101439511B1 - Correction apparatus for induction heat treatment - Google Patents

Abstract

The present invention relates to a correction apparatus for a high frequency heat-treated object, and more specifically, to a correction apparatus for a high frequency heat-treated object connected to and installed at a rear end of a high frequency heat treatment machine to supply and transfer high frequency heat-treated objects e.g., a piston rod, a lock arm shaft, and a shaft by an automation method and to correct deformation due to high frequency heat treatment, so as to automatically perform a continuous correction work after a high frequency heat treatment, thereby increasing an output, improving a quality, and preventing an accident from occurring. The correction apparatus for the high frequency heat treated object, connected to and installed at the rear end of the high frequency heat treatment machine to correct shape deformation due to the high frequency heat treatment of an object in which a surface is hardened by the high frequency heat treatment, includes a supplying unit supplying an object stored in a supply container in a width direction by withdrawing the object toward an upper portion of an inclined plate through a withdrawing bar; a transferring unit transferring the object supplied from the supplying unit in a longitudinal direction through a transferring chain moving in an endless track by a motor; a correcting unit passing the object transferred from the transferring unit between a first correcting roll and a second correcting roll rotating in a uniform direction by a motor and pressing and correcting the object while supplying cooling water to the object through a cooling water pipe; and a stacking unit blowing out the object corrected from the correcting unit in a width direction through a blowout bar and stacking the object on a stacking plate.

Description

Technical Field [0001] The present invention relates to a calibration apparatus for induction heat treatment,

The present invention relates to a calibrating device for a high-frequency heat treatment object, and more particularly, to a calibrating device for a high-frequency heat treatment object, which is connected to a rear end of a high-frequency thermal processing apparatus and supplies and transports objects such as a piston rod, a lock arm shaft, , It is possible to correct the deformation caused by the high frequency heat treatment and to correct the deformation caused by the high frequency heat treatment so as to increase the production amount by continuously performing the correction work after the high frequency heat treatment and to improve the quality and prevent the safety accident. .

In general, piston rods, rock arm shafts, shafts, etc. used as the mechanical parts of vehicles or heavy equipment require surface hardening with constant depth and constant thickness so as to have excellent surface strength.

For this purpose, the high-frequency heat treatment is performed by applying a high frequency to the surface of the object through a high-frequency heat treatment apparatus and then heating the object by cooling water through the cooling water to cure the surface of the object to a certain depth and thickness.

At this time, in the case of a subject having completed the high-frequency heat treatment process, shape distortion such as partial twisting or bending occurs in the direction orthogonal to the longitudinal direction while being heated by the high temperature through the overcurrent caused by the high frequency.

For this purpose, after the high-frequency heat treatment, the object is calibrated in order to correct the above-mentioned deformations. In the calibrating process, the object is placed on the calibrating block through the calibrating device and the error is confirmed by the dial gauge. So that the shape deformation of the object is corrected.

As described above, conventionally, the high-frequency heat treatment work and the calibration work are separately performed with separate devices, and therefore, the manufacturing time is long, so that the production amount is low and the quality of the work is lowered due to manual work. There was a problem.

Therefore, it is necessary to develop a calibrating device for a high-frequency heat treatment object which can be continuously connected in an automated manner by directly connecting a calibrating operation to an object to which a high-frequency heat treatment is completed by connecting the rear end of the high-frequency heat treating device .

Korean Registered Utility Model No. 20-0409568, Feb. 16, 2006 Registered as a person. Domestic Registration Utility Model Bulletin No. 20-0424581, August 16, 2006 Registration.

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the above problems, and it is an object of the present invention to provide an automatic method for calibrating a deformation by a high frequency heat treatment after a high frequency heat treatment for increasing the surface hardness of an object such as a piston rod, a lock arm shaft, Frequency heat treatment apparatus to be connected to the rear end of the high-frequency thermal processing apparatus so as to be able to continuously perform the calibration work.

In order to accomplish the above object, the present invention provides a calibration device for a high-frequency heat treatment object, which is connected to a rear end of a high-frequency thermal processing apparatus and calibrates a shape of the object to be cured by high frequency heat treatment, A feeder for feeding the object placed in the feeder to the upper portion of the swash plate through the drawer bar and feeding the object in the width direction; A transfer unit for transferring the object supplied from the supply unit in the longitudinal direction through a transfer chain moving in an endless track by a motor; An object to be conveyed by the conveying unit is passed between a first calibrating roller and a second calibrating roller which are rotated in the same direction by a motor and the calibrating unit pressurizes and calibrates while supplying cooling water through a cooling water pipe; And a loading unit for taking out the object calibrated by the bridge unit in the width direction through the take-out bar and loading it on the redistribution plate.

Wherein the supply portion is formed such that an inner bottom surface of the supply chamber is inclined downward from a rear end to a front end and the draw bar is provided so as to move up and down by a cylinder at an inner side of a tip end of the supply hopper, And one of the objects placed on the upper surface of the swash plate is supplied one by one to the upper portion of the swash plate.

The conveying unit may further include a plurality of guide rollers installed on the conveying chain and guiding an object conveyed along the conveying chain.

Wherein the first calibrating roller is formed in a concave shape as the outer circumferential surface extends from the both ends toward the center along the longitudinal direction and the outer circumferential surface of the second calibrating roller is convex as it goes from both ends to the center along the longitudinal direction do.

The first calibrating roller and the second calibrating roller are respectively fixed to the first bracket and the second bracket moving in the front and rear direction and the left and right direction according to the operation of the handle, So that the interval and the position of each other can be adjusted.

Wherein the loading section is provided so that the take-out bar moves forward and backward in accordance with the operation of the cylinder, and the cylinder is configured to be actuated when an object comes into contact with a stopper provided above the transfer chain, And the object is taken out through the take-out bar and loaded on the redistribution plate.

According to the present invention, it is possible to continuously perform the calibration work for the object after the high-frequency heat treatment operation on the object by directly connecting the calibration work to the object in an automated manner, so that the productivity of the product can be greatly improved, It is possible to solve the problem of safety accident.

1 is a plan view showing a calibration apparatus for a high-frequency heat treatment object according to a preferred embodiment of the present invention.
2 is a front view showing a calibration apparatus for a high-frequency heat treatment object according to a preferred embodiment of the present invention.
3 is a side view showing a calibration apparatus for a high frequency heat treatment object according to a preferred embodiment of the present invention.
4 is a plan view showing a calibrating roller of a calibrator for a high-frequency heat treatment object according to a preferred embodiment of the present invention.

The calibrating device for a high-frequency heat treatment object according to the present invention is a device for performing a calibrating operation for correcting a shape deformation caused by a high-frequency heat treatment on an object such as a piston rod, a lock arm shaft, and a shaft after high-

Particularly, the calibration device for the high-frequency heat treatment object according to the present invention is connected to the rear end of the high-frequency thermal processing device and performs the calibration work on the object continuously in an automated manner, thereby increasing the production amount of the object, This is a major feature of the company.

This feature is achieved by arranging the object to be connected to the rear end of the high-frequency thermal processing apparatus and correcting the object through the calibration section while feeding and conveying the object through the feeding section and the conveying section, and then taking out and loading the object through the loading section.

Therefore, by continuously correcting the object subjected to the high-frequency heat treatment in the high-frequency heat treatment apparatus by an automatic method, the shape distortion due to the high-frequency heat treatment can be corrected, thereby greatly increasing the product yield and improving the quality while keeping the quality constant It also eliminates concerns about safety accidents.

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

As shown in FIGS. 1 and 3, the calibration device 100 for a high-frequency heat treatment object according to a preferred embodiment of the present invention is roughly divided into a supply part 10, a transfer part 20, an orthogonal unit 30, and a loading unit 40.

First, the supply unit 10 supplies the object S to be taken out by the high-frequency heat treatment apparatus after completion of the high-frequency heat treatment. The supply unit 10 is composed of a supply chamber 11, a drawer bar 12 and a swash plate 13.

That is, the objects S loaded in the supply box 11 are drawn out to the upper portion of the swash plate 13 one by one through the draw-out bar 12 and supplied.

At this time, the inner bottom surface of the supply box 11 is inclined downwardly from the front end to the rear end, and the draw-out bar 12 is installed to move up and down by the cylinder at the inner side of the tip end of the supply box 11, The objects S placed at the tip end of the inner bottom surface of the supply tray 11 are fed one by one to the upper portion of the swash plate 13 and supplied.

Although not shown, width control plates capable of being moved are provided on both sides of the inner side of the supply box 11 so as to smooth the supply of the object S by adjusting the width of the supply box 11 according to the length of the object S.

The conveying unit 20 conveys the object S supplied from the supplying unit 10 in the longitudinal direction so that the object S can be calibrated. The conveying unit 20 includes a conveying chain 21 for moving in an endless track, And a roller 23.

That is, the object S supplied from the supply unit 10 is placed on the upper surface of the transport chain 21 by the motor 22 while the transport chain 21 is moving in an endless track, and the object S is transported along the transport chain 21 And transports them in the longitudinal direction.

The upper surface of the object S to be conveyed along the conveying chain 22 is guided by a plurality of guide rollers 23 provided on the conveying chain 21 so as to be conveyed stably do.

Next, the calibrating unit 30 presses the object S conveyed by the conveying unit 20 to calibrate the warp or twist due to the high-frequency heat treatment. This is because the first calibrating roller 31a, A calibration roller 31b, and a cooling water pipe (not shown).

That is, the object S conveyed by the conveying unit 20 passes between the first calibrating roller 31a and the second calibrating roller 31b, which rotate in the same direction by the motor 32, At the same time, the heat due to the friction between the outer peripheral surface of the object S and the outer peripheral surface of the first calibrating roller 31a and the second calibrating roller 31b is cooled by cooling water supplied through a cooling water pipe (not shown) .

4, the outer circumferential surface of the first calibrating roller 31a is formed in a concave shape from both ends toward the center with respect to the longitudinal direction, and the outer circumferential surface of the second calibrating roller 31b is connected to the first calibrating roller 31a), it is convex from both ends to the center.

Therefore, the object S is corrected in a straight line shape through the space between the concave outer circumferential surface of the first correcting roller 31a and the convex outer circumferential surface of the second correcting roller 31b, at a space narrower than the above interval.

The first calibrating roller 31a is fixed to the first bracket 34a moving in the front and rear direction and the left and right direction according to the operation of the handles 35a and 36a and the second calibrating roller 31a is fixed to the handles 35b and 36b To the second bracket 34b moving in the front, rear, and left and right directions, respectively.

That is, the interval and the position of the first calibrating roller 31a and the second calibrating roller 32a are adjusted to a certain range (for example, a predetermined range) by operating the handles 35a, 36a (35b, 36b) Lt; / RTI >

Finally, the loading unit 40 takes out the object S to which the calibrating operation has been completed in the calibrating unit 30 from the conveying unit 20 and loads the object S, which is a take-out bar 41 operated by the cylinder, And an enemy judgment board (42).

That is, according to the operation of the cylinder, the take-out bar 41 advances and pushes the object S positioned at the rear end of the conveying unit 20 in the width direction and takes it out and loads it on the upper part of the redistral plate 42.

At this time, the cylinder is structured to operate when the object S comes into contact with the stopper 43 provided on the upper rear side of the transfer chain 21. Accordingly, when the position of the object S is detected by the stopper 43, the cylinder is actuated to automatically take out the object S through the take-out bar 41.

As described above, the calibration device for the high-frequency heat treatment object according to the present invention is a device for calibrating the object to which the high-frequency heat treatment is completed by continuously supplying, transporting, calibrating and loading the object by an automatic method, , Convenient, and precise, it increases product production, constantly improves product quality, and eliminates safety concerns.

The above-described embodiments are merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope of the present invention.

Therefore, the true technical protection scope of the present invention should include not only the above embodiments but also various other modified embodiments according to the technical idea of the invention described in the following claims.

10: Feeder 11: Feeder
12: drawer bar 13: swash plate
20: Feeder 21: Feeder chain
22: motor 23: guide roller
30: Calibration unit 31a: First correcting roller
31b: second correcting roller 32: motor
34a: a first bracket
34b: second bracket 35a, 35b, 36a, 36b: handle
40: loading section 41: take-out bar
42: Trial run 43: Stopper
100: Calibration device

Claims (6)

Frequency heat treatment apparatus is connected to the rear end of the high-frequency heat treatment apparatus, and the object to be hardened by the high-frequency heat treatment is calibrated by the high-frequency heat treatment,
A supply part 10 for drawing the object S contained in the supply case 11 to the upper part of the swash plate 13 through the take-out bar 12 and supplying the object S in the width direction;
A transfer unit 20 for transferring the object S supplied from the supply unit 10 in the longitudinal direction through a transfer chain 21 moving in an endless track by a motor 22;
The object S conveyed by the conveying unit 20 is passed between the first calibrating roller 31a and the second calibrating roller 31b rotating in the same direction by the motor 32 and the cooling water pipe A calibrating unit 30 for pressurizing and calibrating the cooling water while supplying cooling water thereto; And
And a loading unit (40) for taking out the object (S) calibrated by the calibration unit (30) in the width direction through the take-out bar (41) and loading it on the redistribution board (42) Calibration device for object. The method according to claim 1,
The supply unit (10)
The inner bottom surface of the supply chamber 11 is formed so as to be inclined downward from the rear end to the front end,
The drawer bar (12) is provided so as to move up and down by the cylinder at the tip end inside of the supply box (11)
And the object S placed on the bottom inner surface of the leading end of the supply tray 11 is fed one by one to the upper portion of the swash plate 13 during the upward movement of the drawer bar 12, . The method according to claim 1,
The transfer unit (20)
Further comprising a plurality of guide rollers (23) installed on the conveying chain (21) for guiding an object (S) conveyed along the conveying chain (21) . The method according to claim 1,
The first calibrating roller (31a)
The outer circumferential surface is formed in a concave shape from the both ends toward the center along the longitudinal direction,
The second calibrating roller (31b)
Wherein the outer circumferential surface is formed in a convex shape from both ends to the center along the longitudinal direction. 5. The method of claim 4,
The first calibrating roller (31a) and the second calibrating roller (31b)
And fixed to the first bracket 34a and the second bracket 34b that move in the forward, backward, left and right directions according to the operation of the handles 35a, 36a (35b, 36b)
Wherein the distance and position of the object (S) are adjustable according to the diameter of the object (S) or the calibration position through manipulation of the handles (35a, 36a) (35b, 36b). The method according to claim 1,
The loading section (40)
The take-out bar 41 is provided so as to move forward and backward in accordance with the operation of the cylinder and is operated when the object S contacts the stopper 43 provided on the conveying chain 21,
When the object S comes into contact with the stopper 43, the cylinder is actuated to take out the object S through the take-out bar 41 and to load the object S onto the redistribution plate 42. [ Correction device.

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