KR101552319B1 - Apparatus for deburring a casting products - Google Patents

Abstract

The present invention is to provide a deburring device for removing a burr formed around an outer surface of a casting product such as a ring or a disk by grinding.
To this end, according to the present invention, a grinding wheel having a fixed height and having a working hole and a guide hole formed in the up and down direction, a grinding wheel provided on the working hole of the base and rotatable around the ring- A drive unit for rotating the grindstone so as to grind and remove a burr formed around the outer surface of the grind wheel; And a clamping unit installed on the table and rotating while supporting the workpiece to be positioned on the inside of the grinding wheel in a vertical direction through the working hole.

Description

[0001] APPARATUS FOR DEBURRING A CASTING PRODUCTS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring device for a casting product and a deburring method using the deburring device. More particularly, the present invention relates to a deburring device for removing a burr formed around an outer surface of a casting product such as an annular or disk- Device and a deburring method using the same.

Generally, burrs are inevitably formed due to inserts, tongs and the like due to the characteristics of a casting process in the process of casting a casting product after injecting the casting mold into a casting mold having a space close to the product, ) Must be removed through a separate post-treatment process to make the quality of the cast product poor.

Particularly, in the case of various semifinished product castings supplied as base materials for annular or disc-shaped parts such as timing pulleys and gears of automobiles, burrs are removed by a grinding operation using a high-speed rotating grinder or the like .

However, since the process of removing the burr of the casting product by using a grinder is usually performed manually, the risk of the occurrence of safety accidents becomes much more serious. As a result, the efficiency of production is greatly influenced by the skill and sincerity of the operator Therefore, since the labor cost and the working time are long, it is difficult to secure a uniform quality because the processing quality is changed according to the skill of the worker as well as the productivity and the workability are lowered.

KR 10-2012-0041307A (2012.05.02) KR 10-1173494B (Aug. 7, 2012) KR 10-1271084B (2013.05.29) KR 10-1220167B (2013.01.03) KR 10-1193905B (October 17, 2012)

Accordingly, the present inventor has intensively solved the limitations and problems inherent in the case of grinding and removing the burr of the semi-finished product by manually taking into consideration all the above-mentioned matters, so that the burr of the semi-finished product castings Newly designed casting products which can improve work efficiency and productivity by reducing the work time and manpower required to remove the burr of semi-finished casting by automatic grinding process and to achieve uniformity of processing quality As a result, the inventor of the present invention has invented the present invention while trying to develop and implement a deburring device and a deburring method using the deburring device.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a deburring device for a casting product and a deburring method using the deburring device.

It is another object of the present invention to provide a deburring device for a casting product which can be used universally regardless of the size of a workpiece and ensures uniformity of processing quality and a deburring method using the same. To provide.

According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device including a base having a work hole and a guide hole formed in a vertical direction and having a predetermined height, And a grinding wheel having a grinding wheel coupled to the inner periphery of the ring-shaped inner surface, the grinding wheel being fixed to the inner periphery of the ring-shaped grinding wheel, wherein the grinding wheel grinds a burr formed around the outer surface of the workpiece, A table provided on the table so as to be able to move up and down with respect to the base, and a table provided on the table and rotated while supporting the workpiece to be positioned inside the grinding wheel in the vertical direction through the working hole Characterized in that the deburring device for a casting product comprises a clamping unit present.

Thus, the present invention can reduce work time and manpower required to remove burrs of a workpiece, thereby improving work efficiency and productivity, as well as achieving uniformity in machining quality.

Here, the grinding wheel can be applied by adopting a diamond abrasive deposited along the circumference of a ring-shaped inner surface.

A housing fixed to the working hole of the base so as to surround the outside of the grinding wheel; and a housing fixed between the grinding wheel and the housing to guide the grinding wheel to rotate at a predetermined position while supporting the weight of the grinding wheel and the load applied thereto The driving unit includes a driving motor fixed to the base to generate a driving force for rotating the grinding wheel, and a driving power transmitting module for transmitting the rotational power of the driving motor to the grinding wheel .

According to another preferred embodiment of the present invention, there is further provided a reverse rotation unit installed on the table and rotating the clamping unit in a direction opposite to the rotating direction of the grinding wheel, thereby minimizing the load on the external stress of the grinding wheel, It is possible to grind the workpiece more effectively, thereby greatly improving burr removal efficiency.

The clamping unit includes a swivel head having a bearing mounted thereon for closely supporting and supporting the upper portion of the workpiece, an elevating actuator fixedly installed on the table to move the swivel head up and down, And a swivel base rotatably supported by the lower portion of the workpiece through the working hole. The reverse rotation unit is fixed to a lower portion of the table and rotatably supports the swivel base And a reverse rotation power transmission module for transmitting the rotation power of the reverse rotation motor to the swivel base.

According to still another embodiment of the present invention, there is provided an elevating apparatus comprising: an elevating unit for elevating and lowering the table with respect to the base; and a moving unit for linearly moving the table in the front and rear horizontal directions of the base, Since the grinding position can be adjusted, various kinds of workpieces can be generally grinded.

The table includes an upper table disposed on the upper side of the base, a lower table disposed on the lower side of the base, and a plurality of guide rods vertically erected through the guide holes of the base to connect the upper table and the lower table. Wherein the lifting / lowering unit includes a lifting / lowering ball screw which is movably provided with respect to the base and moves up and down the table in a linear motion in accordance with the rotational movement, A plurality of sleeves for guiding the table up and down, an elevating motor for generating a driving force for rotating the elevating ball screw, and an elevating power transmission module for transmitting the rotational power of the elevating motor to the elevating ball screw Wherein the mobile unit comprises an upper surface and a lower surface of the base, An LM guide fixedly installed between the surfaces of the table and the table facing each other and guiding the table to linearly move in the front and back horizontal directions of the base; A moving motor that is fixed to the base and generates a driving force for moving the table in the horizontal direction with respect to the base, and a moving power transmitting unit that transmits the rotational power of the moving motor to the feeding screw And can be applied including a transmission module.

According to another embodiment of the present invention, there is further provided a grinding oil supply unit for reducing friction between the grinding wheel and the workpiece to cool down and wash away the grinding debris, thereby increasing the grinding efficiency and extending the life of the grinding wheel It is possible to prevent scattering of dust and improve the environment of the workplace.

In a concrete means according to an embodiment of the present invention, a grinding wheel in which a grindstone is coupled along a ring-shaped inner surface is supported in a vertical direction by a clamping unit inside a cylindrical grindstone fixed to the inner surface of the grindstone, And the grinding wheel is rotated in a direction opposite to that of the grinding wheel so that the grinding wheel grinds and removes a burr formed around the outer surface of the workpiece, thereby providing a deburring method for a casting product .

Thus, the present invention can reduce work time and manpower required to remove burrs of a workpiece, thereby improving work efficiency and productivity, as well as achieving uniformity in machining quality.

Further, in another preferred embodiment of the present invention, the clamping unit is moved up or down with respect to the grindstone with the workpiece being supported, linearly moved along the horizontal direction in the front and rear direction from the inside of the grindstone, And the burr of the workpiece is removed by grinding while moving while being in surface contact with the grinding wheel, so that it can be used universally regardless of the size of the workpiece.

The embodiment of the present invention having the means and construction for achieving the objects and the objects of the technical object as described above is characterized in that the periphery of the outer surface of the workpiece made of the semi-finished casting such as annular or disk- And the grinding wheel is rotated at a high speed while automatically adjusting the position of the workpiece relative to the grinding wheel in the up, down, left, and right directions, so that the burr formed in the workpiece can be removed more quickly and easily have.

Therefore, it is possible to reduce the labor and time required for removing the burr formed in the workpiece, to greatly improve the work efficiency and productivity, and to minimize the occurrence of safety accidents unlike manual work, Uniform and good processing quality can be obtained.

Further, by rotating the grinding wheel and the workpiece in opposite directions, it is possible to minimize the load on the external stress and attenuate the vibration to more effectively grind the workpiece, thereby greatly improving the burr removal efficiency .

That is, since the outer circumferential portion of the workpiece and the inner circumferential portion of the grinding wheel rotate in opposite directions about the vertical axis while making surface contact, the contact area between the grinding wheel and the workpiece is widened, The efficiency can be improved.

Moreover, since the grinding position of the workpiece relative to the grinding wheel can be arbitrarily adjusted according to the size and the grinding condition, it is possible to smoothly and smoothly grind the workpiece while preventing mechanical damage due to sticking or vibration, So that it is possible to use it universally, thereby improving convenience and usability of the work.

In addition, since the burr of the workpiece is removed and the mold is in contact with the mold, it is possible to grind and polish the periphery of the rough outer surface with a relatively strong strength. Therefore, The same parts can be easily machined, and a separate finishing process is not necessary, thereby achieving cost reduction effects.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a deburring device for a casting product according to an embodiment of the present invention. FIG.
2 is a block diagram of a deburring device for a casting product according to an embodiment of the present invention.
FIG. 3 is a structural view showing a part of the deburring apparatus for a casting product according to an embodiment of the present invention viewed from the back. FIG.
4 is a block diagram showing a state in which a deburring device for a casting product according to an embodiment of the present invention is viewed from the front.
5 is a view illustrating a state in which a deburring device for a casting product according to an embodiment of the present invention is viewed from the side.
6 is a longitudinal sectional view showing a deburring apparatus for a casting product according to an embodiment of the present invention.
7 is a longitudinal sectional view showing a state in which the swivel head of the clamping unit is elevated in the deburring apparatus for a casting product according to the embodiment of the present invention.
8 is a vertical sectional view showing a state in which a workpiece is held in a clamping unit of a deburring apparatus for a casting product according to an embodiment of the present invention.
9 is a longitudinal sectional view showing a state in which a table is moved backward in a state where a workpiece is held in a clamping unit of a deburring device for a casting product according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions of the present invention, and they are to be construed to mean concepts that are consistent with the technical idea of the present invention and interpretations that are commonly or commonly understood in the technical field of the present invention.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

Hereinafter, the attached drawings are exaggerated or simplified in order to facilitate understanding and clarification of the structure and operation of the technology, and it is to be understood that each component does not exactly coincide with the actual size.

In addition, when a part includes an element, it does not exclude other elements unless specifically stated otherwise. It is to be understood that the term "part" The meaning of a term means a unit or module type that processes at least one function or operation, which can be implemented by hardware, software, or a combination of hardware and software.

1 to 6, a deburring device for a casting product according to an embodiment of the present invention includes a base 10, a wheel bar 20, a drive unit 30, a table 40, a clamping unit 50 A reverse rotation unit 60, an elevation unit 70, a moving unit 80, and a grinding oil supply unit 90. [0042]

<Base>

The base 10 is fixed at its bottom surface and fixedly supports the device. The base 10 has a fixed height by a frame having a plurality of frames of bars, rods, A work hole 11 is formed so as to allow the workpiece A to be machined by attaching the grinding wheel 20 and the clamping unit 50 in the vertical direction, And a guide hole 12 is formed so as to be linearly movable in the front-rear direction.

<Wheels>

The grindstone 20 is formed in a cylindrical shape and is provided above the working hole 11 of the base so as to be rotated by receiving the driving force from the driving unit 30. Around the inner surface of the working hole 11, And the grinding wheel 21 is fixedly installed so as to rotate at the same time.

Around the inner surface of the grinding wheel 21, a grindstone for grinding and removing a burr formed around the outer surface of the work A is engaged.

That is, the grinding wheel 20 rotates about the vertical axis by the drive unit 30, and the inner circumferential portion of the grinding wheel 21 rotating at the same time is rotated about the vertical axis by the clamping unit 50 Grinding is performed while making surface contact with the outer circumferential portion of the work (A).

Here, it is preferable that the grinding wheel 21 is applied by uniformly depositing diamond abrasive particles along the circumference of the inner surface thereof.

The abrasive wheel 20 is protected by a hollow housing 22 fixed on the working hole 11 of the base and between the housing 22 and the bearing 22 supporting its own weight and load 23) are fixed and smoothly and stably rotate at a constant position in the operation of the drive unit (30).

On the other hand, a belt pulley (not shown) is integrally formed in the lower portion of the wheel barrel 20 to receive rotational power generated by the drive motor 31 of the drive unit 30, which will be described later, stably.

<Driving unit>

The drive unit 30 has a function of rotating the grindstone 20 at a high speed so as to grind and remove a burr formed around the outer surface of the grinding wheel 21 of the work A, (Not shown).

The drive unit 30 includes a drive motor 31 fixed to the base 10 at a predetermined distance from the wheel support 20 and generating a drive force for rotating the wheel 20 in accordance with power supply, And a drive power transmission module for transmitting the rotational power of the drive electric motor 31 to the wheel bar 20.

Here, as the drive electric motor 31, it is possible to employ an induction motor that operates by a rotational force generated by an interaction between a rotating magnetic field generated by an alternating current flowing through the stator winding and an induced current generated in the rotor portion. A geared motor including a speed reducer which adjusts the speed to be output with a force required for driving at a reduced speed.

The drive power transmission module includes a drive pulley or a drive sprocket fixedly mounted on a rotary shaft of the drive motor 31, a driven pulley or a driven sprocket fixed coaxially with the rotary shaft of the wheel block 20, A belt or a chain for transmitting the rotational power of the sprocket to the driven pulley or the driven sprocket can be adopted. It is of course possible to additionally mount a tension pulley, which acts as a tensioner to prevent the belt from slackening when power is transmitted to the belt.

As another example, a drive gear fixedly mounted on the rotary shaft of the drive motor 31, and a driven gear fixed on the same shaft as the rotary shaft of the wheel bar 20 and engaged with the drive gear to receive the rotary power, It is needless to say that it is also possible to adopt a normal power transmission mechanical element for reliably transmitting the rotational force of the rotary shaft of the drive electric motor 31 to the wheel bar 20 without slipping or deforming.

<Table>

The table 40 is capable of linearly moving up and down and forward and backward with respect to the base 10 with all or part of the clamping unit 50, the reverse rotation unit 60, the elevation unit 70 and the movement unit 80 mounted thereon So that the position can be determined and maintained.

The table 40 includes an upper table 41 disposed at a predetermined position above the base 10 and a lower table 42 disposed at a predetermined position below the base 10 and a guide hole 12 of the base And a plurality of guide rods 43 that are erected vertically and connect and fix the upper table 41 and the lower table 42 at regular intervals.

An upper slide 44 is provided so as to face the upper surface of the base 10 in order to mount the LM guide 81 of the mobile unit to be described later required for linear movement of the table 40, And a lower slide 45 opposed to the lower surface is provided.

Here, the table 40 is stably guided by the sliding movement of the guide rod 43 and a sleeve 72 of an elevation unit described later when the base 40 is lifted and lowered with respect to the base 10, The LM guide 81 can be stably guided by the sliding movement of the LM guide 81 of FIG.

<Clamping unit>

The clamping unit 50 is formed in the clamping unit 50 so that the workpiece A such as a disk or the like is stably positioned on the inner side of the grinding wheel 21 in the vertical direction through the base work hole 11 due to the annular shape, And is rotatably provided on the table 40 in the horizontal direction.

That is, the clamping unit 50 includes a swivel head 51 having a top portion of the workpiece A in close contact with the swivel head 51 so as to be freely rotatable, A swivel base 53 rotatably supported by supporting the lower portion of the work A in a male and female engagement with the swivel head 51 through the elevating actuator 52 and the base work hole 11, .

Here, a bearing (not shown) may be mounted on the rotary shaft of each of the swivel head 51 and the swivel base 53 to facilitate the rotational motion.

As the elevating actuator 52, a conventional actuator mechanism or device having a structure in which a control signal is transmitted to a drive source such as a compressor or the like in accordance with opening and closing of a switch and is raised or lowered when the cylinder rod is operated by hydraulic pressure or air pressure can be employed Of course.

<Reverse rotation unit>

The reverse rotation unit 60 functions to rotate the clamping unit 50 in the direction opposite to the rotating direction of the wheel bar 20 and is provided at a lower portion of the table 40. [

The reverse rotation unit 60 includes a reverse rotation electric motor 61 fixed to the lower portion of the table 40 and generating a driving force for rotating the swivel base 53 in the direction opposite to the rotation direction of the wheel bar 20, And a reverse rotation power transmission module for transmitting the rotation power of the reverse rotation electric motor 61 to the swivel base 53. [

In this case, it is preferable that the reverse rotation electric motor 61 employs a servomotor in which the voltage input according to the control signal is changed to the rotation angle to quickly perform the stop and reverse operations. In addition, It is also possible to employ a geared motor including a speed reducer for adjusting the output of the geared motor.

The reverse rotation power transmission module includes a drive pulley or a drive sprocket fixedly mounted on a rotary shaft of a reverse rotation motor 61, a driven pulley or a driven sprocket fixed coaxially with the rotary shaft of the lower portion of the swivel base 53, A belt or a chain for transmitting the rotational power of the drive pulley or the drive sprocket to the driven pulley or the driven sprocket can be adopted.

Another example is a drive gear fixedly mounted on the rotary shaft of the reverse rotation motor 61 and a driven gear fixed on the same shaft as the rotary shaft of the lower portion of the swivel base 53 and engaged with the drive gear to receive the rotational power thereof It is needless to say that it is also possible to adopt a conventional power transmission mechanical element for reliably transmitting the rotational force of the rotary shaft of the reverse rotation electric motor 61 to the swivel base 53 without slipping or deforming.

<Elevating unit>

The elevating unit 70 has a function of raising and lowering the table 40 to a predetermined position with respect to the base 10 and is provided at an upper portion of the base 10. [

That is, the elevating unit 70 includes a lifting ball screw 71, which is installed on the base 10 so as to be movable in the forward and backward horizontal directions with respect to the base 10, A plurality of sleeves 72 for guiding the table 40 up and down by sliding movement with the guide rods 43 of the table during the rotation operation of the raising and lowering ball screws 71, An elevating motor 73 for generating a driving force and an elevating power transmission module for transmitting the rotational power of the elevating motor 73 to the elevating ball screw 71. [

The elevating ball screw 71, the elevating motor 73 and the elevation power transmission module are disposed on the table 40 so as to smoothly and stably move together with the elevating ball screw 71, the elevating motor 73, And the sleeve 72 is mounted on the lower slide 45 of the table.

That is, the elevating unit 70 slides simultaneously with the table 40 by the LM guide 81 during operation of the moving unit 80, which will be described later, while being mounted on the upper slide 44 and the lower slide 45.

As the elevating ball screw 71, a nut-elevating type ball screw or a ball screw jack in which a nut moves without friction or vibration due to rotation of the ball when the screw shaft rotates can be used. In this case, the screw shaft portion of the ball screw is mounted on the upper slide 44, and the nut portion is fixed to the table 40, so that the up and down movement is performed. In addition, it is also possible to employ a structure in which the rotary motion of the servo motor is converted into a linear motion by engaging with a servo motor, a gear driving system such as a rack and a pinion. For example, a moving means such as an LM actuator or a lead screw.

The elevating motor 73 preferably employs a servomotor or a stepping motor in which the voltage input according to the control signal is changed to a rotation angle to quickly perform the stopping and reversing operation. In addition, the number of revolutions of the motor is reduced It is possible to employ a geared motor including a speed reducer which adjusts the output to be a force.

The up-and-down power transmission module includes a drive pulley or a drive sprocket fixedly mounted on the rotation shaft of the lift motor 73, a driven pulley or a driven sprocket fixed on the same axis as the rotation shaft under the lift ball screw 71, A belt or a chain for transmitting the rotational power of the drive pulley or the drive sprocket to the driven pulley or the driven sprocket can be adopted.

<Mobile Unit>

The mobile unit 80 is fixed to the base 10 and the table 40 by functioning to linearly move the table 40 in the forward and backward horizontal directions to the predetermined position with respect to the base 10. [

That is, the mobile unit 80 is fixedly installed between the upper and lower surfaces of the base 10 and the surfaces of the tables 40 facing each other, so that the table 40 is moved linearly in the front- A moving ball screw 82 fixed to the lower surface of the base 10 to move the table 40 in the horizontal direction in the forward and backward directions according to the rotational motion, A moving motor 83 that is fixed to the base 10 and generates a driving force for moving the table 40 in the horizontal direction with respect to the base 10 and a rotating power of the moving motor 83 to the moving ball screw 82 And a mobile power transmission module.

Here, the LM guide 81 supports the table 40 to be precisely conveyed through the sliding movement of the rail and the slider block, guiding the table 40 to smoothly move horizontally along the longitudinal direction of the base 10, It is preferable to provide a pair of left and right pairs so as to maintain a high precision operation while smoothly transferring an inertial force and an offset load due to the transfer of the transferring member 40.

As the moving ball screw 82, a nut-elevating type ball screw or a ball screw jack in which the nut moves without friction or vibration due to rotation of the ball when the screw shaft rotates can be adopted. In this case, the screw shaft portion of the ball screw is mounted on the lower slide 45, and the nut portion is fixed to the base 10, and linear movement is performed back and forth. In addition, it is also possible to employ a structure in which the rotary motion of the servo motor is converted into a linear motion by engaging with a servo motor, a gear driving system such as a rack and a pinion. For example, a moving means such as an LM actuator or a lead screw.

It is preferable that the mobile electric motor 83 employs a servo motor or a stepping motor in which the voltage input according to the control signal is changed to a rotation angle so that the stopping and reversing operations are performed quickly. In addition, And a speed reducer that adjusts the output of the geared motor.

The moving power transmission module includes a driving pulley or a driving sprocket fixedly mounted on the rotating shaft of the moving motor 83, a driven pulley or a driven sprocket fixed coaxially with the rotating shaft of the moving ball screw 82, Or a belt or chain which transmits the rotational power of the drive sprocket to the driven pulley or the driven sprocket.

On the other hand, when the movable ball screw 82 and the movable motor 83 are replaced with the movable unit 80, a control signal is transmitted to a drive source such as a compressor when the switch is opened and closed to actuate the cylinder rod with hydraulic pressure or air pressure It is needless to say that a conventional actuator mechanism or device having a structure of ascending or descending may be adopted.

<Grinding oil supply unit>

The grinding oil supply unit 90 functions to reduce friction between the grinding wheel 21 and the workpiece A to cool down and to wash away the grinding debris. The nozzle portion is adjacent to the grinding wheel 20 Respectively.

That is, the grinding oil supply unit 90 extends the service life of the grinding wheel 21 by reducing the frictional force and frictional heat generated during the process of removing the burr of the work A and increasing the grinding efficiency, It is possible to prevent dust scattering and to improve the environment of the workplace.

Meanwhile, the deburring device for a casting product according to another embodiment of the present invention may further include a dust collector (not shown) for collecting grinding dust generated in the grinding process and sucking the grinding dust into the fan.

<Controller>

The deburring device for a casting product according to an embodiment of the present invention may include a controller (not shown) for controlling the operation of each actuator and the motor in accordance with a switch open / close signal and a sensor detection signal, as well as for setting and controlling the overall operation of the device, .

That is, the controller controls the operation of each electric motor in a state in which the degree of grinding or range required for the workpiece (A) of a specific standard is set, and is set in consideration of the degree or range of grinding of the workpiece (A) The grinding accuracy or range of the workpiece A is calculated and when the workpiece A reaches a predetermined thickness, the operation of each electric motor is automatically stopped, whereby the workpiece A is grinded more than necessary Can be prevented.

As the encoder, a photoelectric linear encoder, a photoelectric rotary encoder, a photoelectric position sensor, or the like, which measures the position and thickness of an object by a photoelectric method, can be employed. In addition, The oscillation frequency or the oscillation amplitude of the oscillation circuit connected to the detection coil is changed by the electromagnetic induction action and the switching operation is performed. When the detection object having the high frequency oscillation type or conductor electrode approaches the object within a certain range, An electrostatic capacity type using a phenomenon in which the electrostatic capacitance greatly changes, or an optical fiber proximity sensor for detecting the position of the object to be detected in proximity to the object in a noncontact manner.

<Operation Principle and Processing Method>

The operation principle of the deburring apparatus for a cast product according to the embodiment of the present invention and the deburring method using the same will now be described.

First, as shown in Fig. 7, the elevating actuator 52 is elevated by the operation of the controller to release the engagement state between the swivel head 51 and the swivel base 53, and thereafter, the annular work A The elevating actuator 52 is lowered and operated through the operation and setting of the controller so that the swivel head 51 and the swivel base 53 are engaged with each other as shown in Fig. And the outer circumferential surface of the outer circumferential surface of the cylindrical abrasive wheel 20 faces the abrasive grains of the grinding wheel 21 provided inside the cylindrical abrasive wheel 20.

In this process, since the grinding position of the workpiece A with respect to the grinding wheel 21 can be arbitrarily adjusted according to the size, burr, or grinding state through manipulation and determination of the position of the table 40, Mechanical damage due to vibration or the like can be prevented.

In this state, the drive unit 30 is operated through the operation and setting of the controller to rotate the wheel 20 in one direction at a high speed. At the same time, the reverse rotation unit 60 is operated to rotate the swivel base 53 And is rotated in a direction opposite to the rotation direction of the base 20.

In this case, the grinding wheel 21 and the workpiece A are rotated in opposite directions to minimize the load on the external stress and attenuate the vibration, thereby forming a burr formed around the outer surface of the workpiece A It is possible to grind effectively.

9, the movable unit 80 is operated to slowly move the table 40 forward or backward, so that the workpiece A is moved little by little into the surface contact with the grinding wheel 21 It is possible to perform grinding more smoothly and smoothly, and of course, it can be used universally regardless of the size of the workpiece (A).

The elevation unit 70 is operated under the control of the controller and the table 40 is repeatedly raised or lowered to grind the workpiece A in surface contact with the grinding wheel 21 as if rubbed up and down, The burr can be removed.

That is, the clamping unit 50 moves up and down with respect to the grinding wheel 20 by the table 40 while supporting the work A, or linearly moves along the longitudinal direction in the front and rear direction of the grinding wheel 20, The workpiece A is brought into surface contact with the grinding wheel 21 while simultaneously performing elevation and linear movement with respect to the workpiece 20 so that the burr of the workpiece A can be reliably grinded and removed.

Thereafter, when burr removal and machining are completed within a grinding range having a predetermined time or a predetermined size, the table 40 is returned to the initial position and state as shown in Fig. 7 by control of the controller, The actuator 52 lifts the swivel head 51 to release the engagement with the swivel base 53. [

Accordingly, it is possible to reduce work time and manpower required for removing the burr of the workpiece A, thereby improving the efficiency and productivity of the work and ensuring uniformity of the workpiece quality.

Particularly, the grinding wheel 21 rotates about the vertical axis in the grinding wheel 20, and the inner circumferential portion of the grinding wheel 21 rotates around the outer surface of the work A rotating around the vertical axis by the clamping unit 50 So that the contact area between the grinding wheel 21 and the workpiece A is widened, resulting in a large amount of grinding per unit time and efficient grinding.

In the meantime, the present invention is not limited to the casting product or the deburring device for annular work according to the above-described embodiment and the accompanying drawings, but may be applied to a surface grinding and polishing process of a workpiece made of various materials and shapes, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. And will be apparent to those skilled in the art.

Therefore, it is to be understood that modifications and variations of the features of the present invention are intended to be included within the spirit and scope of the present invention.

10: Base 11: Operation hole
12: Guide hole 20: Whetstone
21: Grinding wheel 22: Housing
23: bearing 30: drive unit
31: drive motor 40: table
41: upper table 42: lower table
43: guide rod 44: upper slide
45: lower slide 50: clamping unit
51: Swivel head 52: Lift actuator
53: swivel base 60: reverse rotation unit
61: reverse rotation motor 70: elevating unit
71: ascending / descending ball screw 72: sleeve
73: lifting motor 80: mobile unit
81: LM Guide 82: Moving ball screw
83: Moving motor 90: Grinding oil supply unit

Claims (10)

A base having a work hole and a guide hole formed in a vertical direction with a predetermined height;
A cylindrical grinding wheel rotatably installed on the working hole of the base and having a grinding wheel coupled with a grinding wheel along a ring-shaped inner surface around an inner surface;
A driving unit for rotating the grindstone so that a grinding wheel of the grindstone grinds and removes a burr formed around an outer surface of the workpiece;
A table provided on the base so as to be able to move up and down and back and forth; And
A clamping unit installed on the table and rotated while supporting the workpiece to be positioned inside the grinding wheel in a vertical direction through the work hole;
And a deburring device for the casting product.
The method according to claim 1,
Wherein the grinding wheel is a diamond abrasive deposited along a ring-shaped inner circumferential surface.
The method according to claim 1,
A housing fixed on the operation hole of the base so as to surround the outside of the abrasive wheel; And
A bearing fixed between the grindstone and the housing to guide the grindstone to rotate at a predetermined position while supporting a weight of the grindstone and a load applied thereto;
Further comprising:
The drive unit includes: a drive motor fixed to the base and generating a drive force for rotating the wheel; And
A drive power transmission module for transmitting the rotational power of the drive motor to the wheel base;
And a deburring device for the casting product.
The method according to claim 1,
A reverse rotation unit installed on the table and rotating the clamping unit in a direction opposite to a rotating direction of the grinding wheel;
The deburring device for a casting product.
5. The method of claim 4,
Wherein the clamping unit comprises: a swivel head having a top portion of the workpiece held in close contact with the workpiece and freely rotatable;
An elevating actuator fixedly installed on the table to move the swivel head up and down; And
A swivel base supported by the swivel head to support a lower portion of the workpiece through the work hole in correspondence with the swivel head;
/ RTI &gt;
The reverse-
A reverse rotation electric motor fixed to a lower portion of the table and generating a driving force for rotating the swivel base in a direction opposite to a rotating direction of the wheel bar; And
A reverse rotation power transmission module for transmitting the rotation power of the reverse rotation motor to the swivel base;
And a deburring device for the casting product.
The method according to claim 1,
An elevating unit for elevating and lowering the table with respect to the base; And
A moving unit for linearly moving a position of the table with respect to the base in a front-back horizontal direction of the base;
The deburring device for a casting product.
The method according to claim 6,
The table includes: an upper table disposed on the upper side of the base;
A lower table disposed below the base; And
A plurality of guide rods vertically erected through the guide holes of the base to connect the upper table and the lower table;
Lt; / RTI &gt;
The elevating unit includes a lifting ball screw movably installed on the base and moving the table in a linear motion in accordance with the rotational motion;
A plurality of sleeves for guiding the lifting and lowering of the table by sliding movement with the guide rods when the elevating ball screw is rotated;
An elevating motor for generating a driving force for rotating the elevating ball screw; And
An elevating power transmission module for transmitting the rotational power of the elevating motor to the elevating ball screw;
/ RTI &gt;
At least one LM guide fixedly installed between an upper surface and a lower surface of the base and a surface of the table facing each other to guide the table to linearly move in the forward and backward horizontal directions of the base;
A moving ball screw fixedly mounted on a lower surface of the base and linearly moving the table in the longitudinal direction in the forward and backward directions according to the rotational motion;
A moving motor fixed to the base and generating a driving force for moving the table in the horizontal direction with respect to the base; And
A mobile power transmission module for transmitting the rotational power of the mobile electric motor to the moving ball screw;
And a deburring device for the casting product.
The method according to claim 1,
A grinding oil supply unit for reducing friction between the grinding wheel and the workpiece to cool down and wash away the grinding debris;
The deburring device for a casting product.
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