KR102498519B1 - Tapping machine equipped with tapping oil supply unit - Google Patents

Abstract

An objective of the present invention is to provide a tapping machine equipped with a tapping oil supply unit capable of improving a tool life by immersing and burying a tapping bit for tapping the workpiece in the tapping oil. The tapping machine equipped with a tapping oil supply unit according to the present invention includes: a tool holder in which a tapping bit is installed; a spindle providing rotational force to the tool holder; a table on which a workpiece is seated; a chip removal unit for removing chips by injecting fluid into the tapping bit; a tapping oil supply unit that stores tapping oil on one side of the table, accommodates the tapping bit in a selectively opened state, and supplies the tapping oil to the outer surface of the tapping bit; and a control unit controlling operation of the spindle, the tapping unit supply unit, and the table.

Description

Tapping machine equipped with tapping oil supply unit

The present invention relates to a tapping machine equipped with a tapping oil supply unit, and is provided with a tapping oil supply unit equipped with a tapping oil supply unit to improve tool life by immersing and burying a tapping bit for tapping a workpiece in tapping oil. it's about gear.

The present invention includes a tapping oil supply unit equipped with a chip removal unit that removes chips from a tapping bit by spraying gas to minimize the inflow of chips into the tapping oil supply unit, thereby preventing contamination of the tapping oil. It is about a tapping machine.

The present invention relates to a tapping machine equipped with a tapping oil supply unit capable of blocking the inflow of foreign substances by installing a door in the tapping oil supply unit to selectively open a storage container containing tapping oil.

The present invention relates to a tapping machine equipped with a tapping oil supply unit capable of blocking the attachment of chips to a tapping bit in advance by providing a magnetic material on one side of the storage container to limit the movement of chips that may flow into the storage container.

In the present invention, the door is opened when the spindle and the tapping oil supply unit are approached, and the spindle is rotated while the tapping bit is immersed in the tapping oil to remove foreign matter that may be on the tapping bit and at the same time to allow the tapping oil to be evenly smeared. It relates to a tapping machine equipped with a supply unit.

The present invention relates to a tapping machine equipped with a tapping oil supply unit that does not change the structure of the tapping machine and does not cause a decrease in durability and has a simple structure and is easy to maintain and manage.

Since the present invention is not a method of spraying or supplying tapping oil, but a method of soaking, excessive use of tapping oil can be prevented.

In general, a tapping operation of forming a screw portion in an industrial material such as metal is performed by a tapping machine. That is, after drilling the tap formation part of the object to be processed, the tapping operation is performed again using the tapping bit.

At this time, tapping oil is generally supplied to cool the tapping bit and provide lubrication to prolong the life of the tool or improve the working performance of the tapping surface.

Tapping oil is injected into the tapping surface or tapping bit, but a separate injection device is required to inject the appropriate amount of tapping oil at the correct pressure at the correct location.

In the case of a tapping machine, a method of oiling by hand to the tapped part using a gas bottle has been used in the past. However, since oiling is required during work, not only the work time is delayed, but also the risk of safety accidents follows because it is not possible to concentrate on the work.

Accordingly, Korean Patent Publication No. 10-2000-0059156 discloses a storage container 10 for storing tapping oil, a motor pump 20 for discharging tapping oil, and a nozzle 50 for supplying tapping oil, as shown in FIG. Disclosed is a tapping oil supply device for a tapping machine configured to include.

However, the prior art of FIG. 1 has a structure in which the user presses the footrest 60 to supply tapping oil, which is undesirable because the convenience of use is reduced and the efficiency of removing chips from the tap drill is low.

On the other hand, Korean Patent Publication No. 10-2019-0060084 discloses a nozzle for supplying coolant to an accurate position and supplying cutting oil to the turret by spraying coolant to the side of the main shaft as shown in FIG. 2 in a direct injection method without scattering. A machine tool spindle side coolant injection system capable of preventing wear is disclosed.

However, since the prior art of FIG. 2 supplies cutting oil through the inside of the main shaft, durability of the main shaft is lowered, which is not preferable.

In addition, there is a problem that maintenance and repair are inconvenient due to a complicated structure.

Republic of Korea Patent Registration No. 10-1988987 discloses a tapping oil injection device capable of injecting cooling oil to a processing part by air pressure as shown in FIG. 3 .

However, since the prior art of FIG. 3 does not have a function of removing chips attached to the tab, it causes damage to the tab, which is undesirable.

Accordingly, Korean Patent Registration No. 10-2363243 discloses a tapping oil and cutting oil supply device capable of accurately supplying cutting oil and tapping oil to the outer circumferential surface of the bit as shown in FIG. 4 .

However, the prior art of FIG. 4 has a structure in which cutting oil and tapping oil are flowed and supplied, and it is impossible to remove chips firmly adhered to the outer surface of the bit, and cutting oil and tapping oil are excessively supplied, which is undesirable.

An object of the present invention is to solve the problems of the prior art as described above, and a tamping oil supply unit equipped with a tapping oil supply unit is provided so as to improve tool life by immersing and burying a tapping bit for tapping an object in tapping oil. It is to provide the provided tapping machine.

Another object of the present invention is to supply tapping oil to prevent contamination of the tapping oil by minimizing the inflow of chips into the tapping oil supply unit by providing a chip removal unit that removes chips from the tapping bit by injecting gas. It is to provide a tapping machine equipped with a unit.

Another object of the present invention is to provide a tapping machine equipped with a tapping oil supply unit capable of blocking the inflow of foreign substances by installing a door in the tapping oil supply unit to selectively open a storage container containing tapping oil.

Another object of the present invention is to provide a tapping machine equipped with a tapping oil supply unit to block the attachment of chips to a tapping bit in advance by providing a magnetic material on one side of the storage box to limit the movement of chips that may flow into the storage box. is in providing

Another object of the present invention is to open the door when the spindle and the tapping oil supply unit are approached, and rotate the spindle in a state where the tapping bit is immersed in the tapping oil to remove foreign substances that may be on the tapping bit and at the same time to evenly smear the tapping oil. It is to provide a tapping machine equipped with a tapping oil supply unit capable of

Another object of the present invention is to provide a tapping machine equipped with a tapping oil supply unit that does not change the structure of the tapping machine and does not cause a decrease in durability and has a simple structure and is easy to maintain and manage.

Another object of the present invention is to provide a tapping machine equipped with a tapping oil supply unit capable of preventing excessive use of tapping oil because it is a soaking method rather than a method of spraying or supplying tapping oil.

In order to achieve the above object, a tapping machine equipped with a tapping oil supply unit according to the present invention includes a tool holder on which a tapping bit is installed, a spindle providing rotational force to the tool holder, and a table on which an object to be processed is seated; A chip removal unit that removes chips by injecting fluid into the tapping bit, and a tapping oil that stores the tapping oil on one side of the table and accommodates the tapping bit while the top is selectively opened to supply tapping oil to the outer surface of the tapping bit. It is characterized in that it is configured to include a supply unit, and a control unit that controls the operation of the spindle, the tapping oil supply unit, and the table.

The tapping oil supply unit is characterized in that it includes a storage box forming a space for storing tapping oil, and a door that selectively shields an upper portion of the storage box to block inflow of foreign substances.

The tapping oil supply unit may further include a cylinder that opens and closes the door and a magnetic material that generates magnetism inside the storage box to limit the movement of chips.

The control unit may rotate the spindle in a state where the tapping bit is immersed in tapping oil to separate foreign matter from an outer surface of the tapping bit.

The control unit is characterized in that the storage box is shielded during a tapping operation or during operation of the chip removal unit.

In the present invention, a tapping oil supply unit is provided so that a tapping bit for tapping an object to be processed can be immersed in tapping oil.

Therefore, there is an advantage of improving tool life.

In the present invention, a chip removal unit is provided to remove chips buried in the tapping bit by spraying gas.

Therefore, contamination of the tapping oil can be prevented by minimizing the inflow of chips into the tapping oil supply unit.

In addition, by installing a door in the tapping oil supply unit to selectively open the container containing the tapping oil, it is possible to block the inflow of foreign substances. In addition, by providing a magnetic material on one side of the storage box to restrict the movement of the chips introduced into the storage box, it is possible to block the attachment of chips to the tapping bit in advance.

In addition, when the spindle and the tapping oil supply unit are approached, the door is opened, and the spindle is rotated while the tapping bit is immersed in the tapping oil to remove foreign substances that may be on the tapping bit and at the same time, the tapping oil can be evenly smeared.

In addition, since the structure of the tapping machine is not changed, it does not cause a decrease in durability, and the structure is simple, so maintenance and management are easy.

In addition, since it is not a method of spraying or supplying tapping oil, but a method of soaking, excessive use of tapping oil can be prevented.

1 is a perspective view showing the structure of a tapping oil supply device for a tapping machine disclosed in Korean Patent Publication No. 10-2000-0059156;
Figure 2 is a cross-sectional view showing a machine tool spindle side cutting oil injection system disclosed in Korean Patent Publication No. 10-2019-0060084.
3 is a state diagram showing the structure of a tapping oil injection device disclosed in Korean Patent Registration No. 10-1988987;
4 is a perspective view showing the appearance of a water purifier disclosed in Korean Patent Registration No. 10-1813929;
5 is a real picture of an embodiment of a tapping machine equipped with a tapping oil supply unit according to the present invention.
6 is a longitudinal sectional view showing the structure of another embodiment of a tapping machine equipped with a tapping oil supply unit according to the present invention;
7 is a schematic view showing the detailed configuration of a tapping oil supply unit, which is a main part of a tapping machine equipped with a tapping oil supply unit according to the present invention;
8 is a schematic view showing the operation of a chip removal unit, which is one component of a tapping machine equipped with a tapping oil supply unit according to the present invention;
9 is a schematic view showing a state in which a tapping oil supply unit, which is a main part of a tapping machine equipped with a tapping oil supply unit according to the present invention, is opened;
10 is a schematic diagram showing a state in which a tapping bit is positioned above the tapping oil supply unit in a tapping machine equipped with a tapping oil supply unit according to the present invention;
11 is a schematic diagram showing a state in which a tapping bit is locked in a tapping oil supply unit in a tapping machine equipped with a tapping oil supply unit according to the present invention;

Hereinafter, the configuration of a tapping machine (hereinafter referred to as 'tapping machine 100') equipped with a tapping oil supply unit 150 according to the present invention will be described with reference to attached FIG. 5 .

5 shows a real picture of an embodiment of a tapping machine 100 equipped with a tapping oil supply unit 150 according to the present invention.

Prior to this, the terms or words used in this specification and claims should not be interpreted in a conventional and dictionary sense, and the inventor may appropriately define the concept of the term in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can replace them at the time of the present application. It should be understood that there may be waters and variations.

As shown in the drawing, the tapping machine 100 according to the present invention is a device for forming a spiral groove (see reference numeral H in FIG. 8) in an object W to be processed, and includes a tool holder 110 in which a tapping bit T is bitten and installed. And, the spindle 120 providing rotational force to the tool holder 110, the table 130 on which the workpiece W is restrained and seated, and the tapping bit T are sprayed with fluid to remove chips. Tapping oil is stored on one side of the chip removal unit 140 and the table 130, and the tapping bit T is accommodated in a state where the top is selectively opened to supply tapping oil to the outer surface of the tapping bit T. It is configured to include an oil supply unit 150, a control unit (not shown) that controls the operations of the spindle 120, the tapping oil supply unit 150, and the table 130.

The spindle 120 can linearly move the tool holder 110 and the tapping bit T in up/down directions, and provides rotational force to the tapping bit T to form a spiral groove H in the workpiece W. It is a configuration that allows this to be processed.

The table 130 is configured to two-dimensionally move the object W by linear motion in forward/backward and left/right directions, and is installed on a bed (see reference numeral 180 in FIG. 6).

That is, the bed 180 maintains a certain position, and the table 130 is capable of two-dimensional movement on the bed 180 in forward/backward and left/right directions.

A cutting oil supply unit 160 may be provided near the spindle 120 . The cutting oil supply unit 160 is configured to lower the frictional heat when cutting the object W, and is provided in plurality, and the cutting oil can be controlled to selectively discharge.

The chip removal unit 140 sprays fluid to the tapping bit T to blow away foreign substances or chips on the outer surface of the tapping bit T, and the chip removal unit 140 operates the tapping bit ( T) is preferably rotated so that all of the chips can be removed.

A tapping oil supply unit 150 is provided near the table 130 . The tapping oil supply unit 150 supplies tapping oil to the tapping bit T so as to prevent wear and tear of the tapping bit T during the tapping operation.

To this end, the tapping oil supply unit 150 includes a storage box 152 forming a space for storing tapping oil, and a door 154 that selectively shields the upper part of the storage box 152 to block the inflow of foreign substances. do.

The storage box 152 is made in the form of a container to store tapping oil therein without leakage, and the inside is opened upward.

In addition, the storage box 152 may be fixed to a support 155 installed upright on any one of the bed 180 and the table 130 .

The tapping bit (T) can be inserted into the storage box 152 by the up/down movement of the spindle 120 and the two-dimensional movement of the table 130, and is inserted into the storage box 152. The tapping bit T can contain and receive tapping oil.

Therefore, it is preferable to use tapping oil having a high viscosity so that the tapping oil does not flow down from the tapping bit T and maintains a buried state for a long time.

A configuration of another embodiment will be described with reference to FIGS. 6 and 7 attached below.

6 is a longitudinal sectional view showing the structure of another embodiment of a tapping machine 100 equipped with a tapping oil supply unit 150 according to the present invention, and FIG. 7 shows a tapping oil supply unit 150 according to the present invention A schematic diagram showing the detailed configuration of the tapping oil supply unit 150, which is a main part of the equipped tapping machine 100, is shown.

As shown in the drawing, the tapping power supply unit 150 may be configured to be opened and closed by a control unit.

To this end, the tapping oil supply unit 150 may include a cylinder 156 that opens and closes the door 154 . The cylinder 156 is connected to the solenoid valve and configured to expand and contract in length by the control unit, and the left end of the cylinder 156 is connected to the left end of the door 154 so that when the cylinder 156 is extended When the door 154 is opened and the length of the cylinder 156 is reduced, the door 154 may be operated to close the storage box 152.

Also, since chips may flow into the storage box 152, the control unit preferably controls the storage box 152 to be shielded during a tapping operation or when the chip removing unit 140 operates.

Chips may be unintentionally introduced into the storage box 152 . Therefore, when chips are mixed in tapping oil having a high viscosity, the chips may be buried during the process of immersing the tapping bit T in the tapping oil. Therefore, in order to solve this problem, a magnetic material 158 is provided inside the storage box 152 .

The magnetic material 158 generates magnetic force inside the storage box 152 and attaches a metal chip introduced into the storage box 152 to limit movement.

Accordingly, the magnetic material 158 may be located inside the storage box 152 as shown in FIG. 7 if it is within the range where a chip can be attached, or may be located outside the storage box 152 if necessary.

At this time, if the magnetic material 158 outside the storage box 152 is removed, foreign substances such as chips gathered inside the storage box 152 can be easily removed.

Hereinafter, the operation of the tapping machine 100 will be described with reference to FIGS. 8 to 11 attached thereto.

8 is a schematic view showing the operation of the chip removal unit 140, which is one component of the tapping machine 100 equipped with the tapping oil supply unit 150 according to the present invention, and FIG. 9 is the tapping oil supply unit according to the present invention. 10 is a schematic view showing the opening of the tapping oil supply unit 150, which is the main part of the tapping machine 100 equipped with 150, and FIG. 10 is a tapping machine equipped with the tapping oil supply unit 150 according to the present invention. 11 is a schematic view showing the tapping bit (T) positioned above the tapping oil supply unit 150 in (100), and FIG. It is a schematic diagram showing a state in which the bit T is locked in the tapping oil supply unit 150.

First, as shown in FIG. 8, after the spiral groove (H) is formed in the object (W), when it is necessary to supply tapping oil to the tapping bit (T), the spindle 120 moves upward to remove the chip. (140) is used to remove the chips on the outer surface.

At this time, the chip removal unit 140 can remove chips by spraying high-speed air to the tapping bit T, and in order to effectively remove chips, the control unit sprays air while rotating the spindle 120 to perform tapping. The entire outer surface of the bit (T) can be cleaned.

Then, the spindle 120 moves upward to a height where it does not collide with the tapping oil supply unit 150, and the storage box 152 is opened as shown in FIG. 9 .

That is, the control unit controls tapping oil to be exposed to the outside by extending the length of the cylinder 156 and opening the door 154.

Then, the table 130 is moved to the left and aligned so that the storage box 152 is located under the tapping bit T as shown in FIG. 10 .

Then, when the spindle 120 is moved downward, the tapping bit T is immersed in the tapping oil and the tapping oil is supplied to the outer surface.

In addition, it is preferable that the spindle 120 is rotated so that the tapping oil can be evenly buried on the outer surface of the tapping bit T, and chips that can be buried on the outer surface of the tapping bit T while preventing the tapping oil from being blown away by centrifugal force. It may act so that it can be separated by this tapping oil.

The movement of foreign substances or chips unintentionally introduced into the storage box 152 is restricted by the magnetic force of the magnetic body 158, and as a result, the problem of sticking to the tapping bit T again can be solved.

The scope of the present invention is not limited to the embodiments exemplified above, and many other modifications based on the present invention will be possible for those skilled in the art within the above technical scope.

For example, in the embodiment of the present invention, the storage box 152 is configured to open and close the door 154 by the operation of the cylinder 156, but within the range to open and close the door 154, the cylinder 156 ) can be applied in various ways.

In addition, in the embodiment of the present invention, the magnetic material 158 is a permanent magnet, but an electromagnet that is selectively magnetic may be applied according to power supply.

100. Tapping machine 110. Tool holder
120. Spindle 130. Table
140. Chip removal unit 150. Tapping oil supply unit
152. storage box 154. door
155. Support 156. Cylinder
158. Magnetic body 160. Cutting oil supply unit
180. Bed H. spiral groove
T. Tapping bit W . object to be processed

Claims (5)

delete delete A tool holder in which a tapping bit is installed;
A spindle providing rotational force to the tool holder;
A table on which the object to be processed is seated;
a chip removal unit for removing chips by injecting fluid into the tapping bit;
a tapping oil supply unit that stores tapping oil on one side of the table, accommodates the tapping bit in a state where the top is selectively opened, and supplies tapping oil to the outer surface of the tapping bit;
It is configured to include a control unit that controls the operation of the spindle, the tapping oil supply unit, and the table,
The tapping oil supply unit,
A storage box forming a space for storing tapping oil;
A door for selectively shielding the upper part of the storage box to block the inflow of foreign substances;
A cylinder for opening and closing the door;
Tapping machine with a tapping oil supply unit, characterized in that it is configured to include a magnetic material that generates magnetism inside the storage box to limit the movement of chips.
The method of claim 3, wherein the control unit,
Tapping machine having a tapping oil supply unit, characterized in that the foreign matter on the outer surface of the tapping bit is separated by rotating the spindle while the tapping bit is immersed in the tapping oil.
5. The tapping machine with a tapping oil supply unit according to claim 4, wherein the control unit shields the storage box during a tapping operation or when the chip removing unit operates.

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