KR101029273B1 - Grinding Machine - Google Patents

Abstract

A molding grinder capable of easily performing part replacement is disclosed. Molding grinding machine according to the present invention is a housing, a part is accommodated in the housing, a through hole is provided therein, a polishing roll for polishing the workpiece through a rotational movement, the polishing roll to transfer the driving force of the drive to the polishing roll A fixing pin rotatably supporting both ends of the fixing pin, wherein at least one of the plurality of shafts passes through the through holes of the plurality of shafts and the polishing rolls selectively restrained, and the polishing rolls and the plurality of shafts are pressed against each other. It is configured to include.

Polishing rolls, dressers, electromagnets, coolant, V-belts, housings

Description

Grinding Machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaped grinding machine, and more particularly, to a shaped grinding machine that is easy to replace a component that is at the end of its life or needs to be replaced in use.

In general, a shaped grinding machine is a grinding machine that inserts a workpiece between a grinding wheel and a polishing roll and grinds it while supporting it with a supporting plate. The polishing roll rotates the work piece by friction with the work piece, and adjusts the rotational speed of the work piece by the pressure of the polishing roll against the work piece.

In grinding the outer diameter of the workpiece, the grinding process is performed without using a center or a chuck, and the center is not used to support a long and thin workpiece.

In addition, the workpiece can be continuously pushed by the rotation of the polishing roll, and once adjusted, the work is automatically performed, such as parts such as piston pins, bearing races, rollers, taper pins and drill bags, etc. It is widely used for mass production of jin parts.

Among the components constituting the molding grinder, the abrasive roll is made of rubber material, and wear and tear occurs due to constant friction with the work piece, and it should be replaced.

However, in order to replace the polishing roll, it had the inconvenience of disassembling all the parts around it.

In addition, in order to separate a motor for providing a driving force for rotating the polishing roll, a problem arises in that all devices for transmitting power have to be removed.

In the case of the grinding wheel for grinding the workpiece, the grinding wheel was dressed using a dressing apparatus to grind the tapered parts.

In order to use such a dressing apparatus, the dressing apparatus should be fixed with a high fixing force so that no error occurs in the grinding process of the grinding wheel so that the dressing apparatus does not move.

Due to this high fixing force, a lot of trouble has been generated to remove the dressing device after use.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a molding grinder for facilitating replacement of parts which have reached the end of life or require replacement in use.

In order to achieve the above object, in the present invention, a housing, a part is accommodated in the housing, a through hole is provided therein, a polishing roll for polishing the workpiece through a rotational movement, the driving force of the drive unit to the polishing roll Rotatably supporting both ends of the polishing rolls for transmission, at least one of which penetrates through the through holes of the plurality of shafts and the polishing rolls selectively restrained, and the polishing rolls and the plurality of shafts are mutually compressed It provides a molding grinder comprising a fixing pin provided to be provided.

The through hole provided in the polishing roll may be formed in a tapered form at both ends thereof to allow the shaft to be seated.

The plurality of shafts are provided on the right side of the polishing roll to form a first shaft having a through hole through which the fixing pin passes, and a second shaft having an insertion hole to accommodate the end of the fixing pin provided on the left side of the polishing roll. It may be configured to include.

A shaft cap may be further provided on one side of the housing to cover at least one of the plurality of shafts. In addition, a pulley may be provided at least one of the plurality of pulleys so that a driving force of the driving unit is transmitted to the polishing roll.

The fixing pin is formed with a screw thread so that one end is inserted into the insertion hole of the second shaft and the other end has a pin head formed to be fixed to the through hole of the first shaft to connect the polishing roll and the plurality of shafts. Can be compressed.

The driving unit may include a motor for providing a driving force, a power transmission unit for transmitting a driving force provided by the motor, and a fixing unit for fixing the motor to the body that supports the housing.

Here, the power transmission unit may include a pulley and a belt.

In addition, the fixing part is provided to fix the motor with respect to the body, the fixing plate is formed with a guide groove having a longitudinal direction in a direction perpendicular to the rotation axis of the motor and is inserted into the guide groove to fasten the motor and the fixing plate It may be made including a fastening member.

The shaped grinding machine may include a multi-joint injection nozzle so that cutting oil may be injected onto the polishing roll to assist in polishing the workpiece.

One side of the body supporting the housing is provided with a block can be fixed by a magnetic force dresser for processing the grinding wheel for grinding the workpiece.

Here, the block may be made of an electromagnet to selectively generate magnetic force.

Molding grinder according to the present invention having the above configuration has the following effects.

First, there is an effect that the polishing roll can be removed from the housing only by removing the shaft cover, the fixing pin and the shaft without disassembling all the parts around the polishing roll in order to replace the polishing roll.

Second, when the fastening member is moved along the guide groove to replace the motor by placing the guide groove in the fixing plate provided for mounting the motor in the housing, the tension by the belt of the driving unit can be adjusted to adjust the belt tension and the belt. There is an advantage that can be easily removed.

Third, there is an advantage that can be adjusted so that the cutting oil is injected to a desired position by having the injection nozzle in a multi-joint structure so that the injection nozzle for spraying the cutting oil to the grinding wheel can be bent freely.

Fourth, there is an advantage that can be easily mounted and removed by providing a block provided in the body supporting the housing that can be fixed to the dresser for processing the grinding wheel by magnetic force with an electromagnet.

Further, by fixing the dresser using magnetic force, it is possible to provide a high fixing force to prevent the dresser from moving when machining the grinding wheel with the dresser, and when removing the dresser to remove the magnetic force effectively There is an advantage that can be removed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

First, referring to FIG. 1, a configuration of a molding grinding machine according to an embodiment of the present invention will be described. 1 is a perspective view showing a molding grinding machine according to an embodiment of the present invention.

The molding grinder according to the present embodiment includes a housing 100, a polishing roll 200, a grinding wheel 30, a shaft 300, a fixing pin 700, a driving unit 400, and a body 10. It is configured by.

The body 10 is provided with a block 20 so that not only the housing 100 but also the driving unit 400 is mounted and a dresser 600 for processing the grinding wheel 30 is mounted.

The housing 100 covers the polishing roll 200 on the body 10 and is provided in a form in which an upper side thereof is opened.

As such, since the housing 100 is provided in an open shape, the polishing roll 200 may be stably supported at both ends, and the polishing roll 200 may be replaced to replace the polishing roll 200. It can be removed to the upper side of the housing 100 that is open has the effect of reducing the number of parts to be removed.

A part of the polishing roll 200 is accommodated in the housing 100, and serves to allow the rotary grindstone 30 to grind the workpiece by friction with the workpiece through a rotational movement.

Cutting oil is supplied to assist the grinding wheel 30 in grinding the workpiece. The cutting oil is provided in multiple joints to supply the cutting oil, and the cutting oil can be freely changed and positioned at a desired position. Make sure

In the present embodiment, the block 20 provided in the body 10 to be equipped with a dresser 600 for processing the grinding wheel 30 is made of an electromagnet so as to selectively generate a magnetic force, the magnetic force The adjustment lever 22 is provided so that it may turn on / off.

As such, since the block 20 is made of an electromagnet, the dresser 600 is fixed to the dresser 600 with a strong magnetic force so that the dresser 600 does not move when the grinding wheel 30 is processed.

On the other hand, when the dresser 600 needs to be removed, when the adjustment lever 22 is positioned in the off position, the block 20 loses the magnetic force, so that the dresser 600 can be removed.

As such, by controlling the magnetic force of the block 20 through the adjustment lever 22, it is possible to determine whether to mount or remove the dresser 600 to the block 20.

Next, with reference to Figures 2 to 3 will be described for a molding grinding machine according to an embodiment of the present invention. 2 is an exploded perspective view of the polishing roll, the shaft and the fixing pin according to the present embodiment, FIG. 3A is a cross-sectional view of the first shaft, and FIG. 3B is a cross-sectional view of the second shaft.

In the present embodiment, the polishing roll 200 is provided with a through hole therein, and the portion coupled to the first shaft 340 and the second shaft 320 is preferably provided in a tapered form.

As shown in FIG. 3, the shaft includes a first shaft 340 having a through hole 348 through which the fixing pin 700 penetrates, and an insertion hole 328 in which an end of the fixing pin 700 is accommodated. The formed second shaft 320 is configured to include.

Here, the first shaft 340 is provided with a second pulley 360 so that the driving force of the drive unit 400 is transmitted to the polishing roll 200, the second shaft 320 is the second A shaft cap 120 for covering the shaft 320 is provided at one side of the housing 100.

The first shaft 340 is provided with a pair of bearings 344 to surround the body 342 of the shaft so that the shaft 300 can rotate, the end 326 of the body It is formed to be inclined to be coupled to the tapered portion of the polishing roll 200, the second pulley 360 is coupled to the opposite side of the end 326 of the body as described above.

In addition, the through hole 348 formed therein is fixed through the fixing pin 700, the pin head 720 of the fixing pin 700 is fixed so that the fixing pin 700 is the second shaft 320 A diameter of the through hole 348 is provided to decrease the diameter of the fixing pin body 740 so as to compress the diameter.

The second shaft 320 is provided with a pair of bearings 324 to surround the body 322 of the second shaft so that the shaft 300 can rotate, the end 326 of the body It is formed to be inclined to be coupled to the tapered portion of the polishing roll 200.

In addition, the insertion hole 328 formed therein is provided with a screw thread so as to be mutually coupled with the screw thread 742 provided at the end of the fixing pin body 740.

As described above, in the present embodiment, the fixing pin 700 may be fixed to the through hole 348 of the first shaft 340 to compress the first shaft 340 and the polishing roll 200. The pin head 720, the body 740 penetrating the through hole of the polishing roll 200 and the end of the body 740 is provided in the insertion hole 328 of the second shaft 320 It comprises a screw thread 742 corresponding to the screw thread.

In this embodiment, the removal order of the parts when the replacement of the polishing roll 200 is required is as follows.

First, the fixing pin 700 for fixing the first shaft 340, the second shaft 320 and the polishing roll 200 is separated, and the shaft cap (one side of the housing 100 is provided) 120).

Next, the second shaft 340 that is covered by the shaft cap 120 is separated from the polishing roll 200.

Through this step, the polishing roll 200 is freed from the parts restraining the polishing roll 200, so that the polishing roll 200 can be removed to the open upper side of the housing 100.

As such, after removing the polishing roll 200, a process of replacing and assembling a new one is performed by performing the above-described separation process in the reverse order.

The driving unit 400 is a motor 420 for providing a driving force to allow the polishing roll 200 to rotate, a power transmission unit for transmitting a driving force provided by the motor 420, the motor 420 It is configured to include a fixing part 480 to be fixed to the body (10).

As shown in FIG. 4, the power transmission unit includes pulleys 360 and 460 and a belt 470. Here, the pulleys 360 and 460 include a first pulley 460 communicating with the rotation shaft of the motor 420 and a second pulley 360 communicating with the first shaft 340.

The fixing part 480 is provided to fix the motor 420 with respect to the body 10 and extends in the longitudinal direction in a direction perpendicular to the rotation axis of the motor 420, that is, in the tension direction of the belt 470. The branch includes a fixing plate 486 having a guide groove 482 and a fastening member 484 inserted into the guide groove 482 to fasten the motor 420 and the fixing plate 486.

As such, in order to replace the motor 420, the fastening member 484 is loosened and the motor 420 is moved along the guide groove 482 having the longitudinal direction in the tension direction of the belt 470 to loosen the tension. As a result, the motor 420 may be more easily separated.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are possible. Belongs to the scope of.

1 is a perspective view of a shaped grinding machine according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the polishing roll, the shaft and the fixing bar of FIG. 1; FIG.

3A is a cross-sectional view of the first shaft of FIG. 2;

3B is a cross-sectional view of the second shaft of FIG. 2; And

4 is a configuration diagram showing a configuration of a driving unit.

<Explanation of Signs of Major Parts of Drawings>

10: body 20: block

22: adjustment lever 30: grinding wheel

100: housing 120: shaft cap

200: polishing roll 300: shaft

320: second shaft 322, 342: body

324, 344: bearing 328: insertion hole

348: through hole 360: second pulley

400: driving unit 420: motor

440: axis of rotation 460: first pulley

470: belt 480: fixed portion

482: guide groove 484: fastening member

500: injection nozzle 600: dresser

Claims (12)

A housing fixed to the body, the housing being provided in an open shape; A polishing roll accommodated inside the housing in a form in which a portion thereof is exposed to the upper portion of the housing, and having a through hole therein and polishing the workpiece through a rotational movement; A motor connected to the polishing roll to provide a driving force for rotating the polishing roll, a power transmission part including a pulley and a belt to transmit the driving force provided by the motor, and a length in a direction perpendicular to the rotation axis of the motor. A driving plate including a fixing plate configured to extend along the direction and having a guide plate for adjusting the tension of the belt through distance adjustment, and a fixing part for fixing the motor to the body through a fastening member penetrating the guide groove. module; A plurality of shafts rotatably supporting both ends of the polishing roll to transmit the driving force of the driving module to the polishing roll, at least one of which is selectively restrained by the housing; And A fixing pin penetrating the through hole of the polishing roll and provided to press the polishing roll and the plurality of shafts together; Forming grinding machine comprising a. The method of claim 1, The through hole provided in the polishing roll, Molding grinder, characterized in that both ends are provided in a tapered form so that the shaft is seated. The method of claim 1, The plurality of shafts, A first shaft having a through hole through which the fixing pin passes; And A second shaft having an insertion hole accommodating an end of the fixing pin; Forming grinding machine comprising a. The method of claim 1, Molding grinder further comprises a shaft cap for covering at least one of the plurality of shafts on one side of the housing. The method of claim 1, The plurality of shafts, Forming grinder, characterized in that the pulley is provided on at least one so that the driving force of the drive module is transmitted to the polishing roll. The method of claim 3, wherein The fixing pin, A thread is formed so that one end is inserted into the insertion hole of the second shaft and the other end is formed with a pin head to be fixed to the through hole of the first shaft. delete delete delete The method of claim 1, And a multi-joint injection nozzle configured to allow cutting oil to assist in grinding the work piece to be injected into the grindstone for grinding the work piece. The method of claim 1, And a block provided on one side of the body supporting the housing to fix the dresser for processing the grindstone for grinding the work piece by magnetic force. The method of claim 11, The block is, Molding grinder, characterized in that made of an electromagnet to selectively generate a magnetic force.

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