KR20140015041A - Apparatus for providing turret of turret lathe with coolant - Google Patents

Abstract

The present invention relates to a cutting oil feeding apparatus of a tool post of a turret lathe, which is able to prevent cutting oil from leaking by not letting a crack formed between a cutting oil nozzle and a name plate when stopping supply of the hydraulic pressure to the cutting oil nozzle for rotation of a disk, not to generate eccentric load on the name plate by distributing the pressure applied to the cutting oil nozzle without fully delivering to the name plate, and to use high pressure cutting oil and low pressure cutting oil together. The cutting oil feeding apparatus comprises a tool post body having a cutting oil path and a hydraulic pressure passage; an adaptor having a hydraulic pressure passage connected to the hydraulic pressure passage of the tool post body, formed in the upper part, and a cutting oil path connected to the cutting oil path of the tool post body, formed in the middle, and having a through-hole formed therein; a balance cap installed in the upper part of the inner through-hole of the adaptor; a cutting oil nozzle installed under the balance cap in the inner through-hole of the adaptor, and having a cutting oil path connected to the cutting oil path of the adaptor, formed therein; a spring installed between the balance cap and the cutting oil nozzle; and a name plate having a cutting oil path connected to the cutting oil path of the cutting oil nozzle.

Description

Coolant Feeder for Turret Lathes {apparatus for providing turret of turret lathe with coolant}

The present invention relates to a coolant supply device for a tool stage of a turret lathe, more specifically, to prevent the formation of a gap between the nozzle and the name plate when the supply of hydraulic pressure applied to the nozzle for the rotation of the disk is stopped. This prevents the coolant from leaking and disperses the pressure applied to the nozzles without transferring them to the nameplate, thus eliminating the load on the nameplate. Turret lathes can be used in combination with high pressure coolant and low pressure coolant. It relates to a cutting oil supply device of the tool stage of the.

A machine used for machining a metal or non-metal material to a shape and dimensions using appropriate tools, or for finer machining of a semi-finished material by various cutting or non-cutting methods is called a machine tool. Among the above-mentioned machine tools, a machine tool in which chips are generated in the machining process is called a cutting machine tool, and a non-cutting machine tool in which chips are not generated in a machining process is called a metal machining machine. The above-mentioned cutting machine tools include a lathe, a milling machine, a machining center, a drilling machine, a boring machine, a grinding machine, a gear processing machine, and a special processing machine. The metal forming machine includes a mechanical press, Bending machines, stair machines, and drawing machines.

In the lathes described above, the lathes are used to cut short workpieces with large diameters and are used for cutting short workpieces with large diameters, such as face lathes and ordinary lathes. It is a lathe with a taper-cutting device and a relieving device, and a lathe that can be installed on a workbench with a tabletop shelf that mainly processes small parts such as watch parts and sewing machine parts. The chuck is installed vertically on the ground for easy processing of workpieces and irregular workpieces, and the tracer is installed on the model or template by using a vertical lathe that is convenient for mounting or detaching workpieces and an automatic copying device. And the tracer moves, the bytes move together to automatically form parts with the same shape as the model or template. Ball mill which mimics that there are shelves and shelves of the turret lathe, for mass production of components simple to install and fit a variety of tools to process using a rotary tool turret called for.

In the turret lathe, various chips such as flow type, shear type, tillage type and uniform type are generated during machining of the workpiece, and friction caused by cutting of the tool surface and friction and shear surface generated when the tool tip passes through the cutting surface. In the case of shear deformation at, a large amount of heat is generated at the cutting part due to chip deformation. At this time, the heat generated is partially transferred to the chip, but part is transferred to the tool, and the other part is transferred to the workpiece to further increase the temperature of the cutting area, thereby generating built-up edges. The tool life is reduced by roughening the machining surface and increasing the wear of the tool. Therefore, in the cutting process of the turret lathe, the cutting edge is cooled to prevent the hardness of the cutting edge from being reduced by the cutting heat, and the cooling of the workpiece prevents the degradation of the dimensional accuracy and helps the flow of the chip. Make it easy to operate.

As a conventional technology related to an apparatus for supplying cutting oil to a tool post in a turret lathe, a technology for supplying cutting oil to a cutting tool installed in a turret is disclosed in Korean Patent Publication No. 10-0690427 (Date of Publication: 2007 March 12, 12), "Turret coolant supply device".

However, the cutting oil supply device of the tool stage of the conventional turret lathe as described above has a gap formed between the cutting oil nozzle and the name plate when the supply of hydraulic pressure applied to the cutting oil nozzle for the rotation of the disk is stopped. There is a problem of leakage.

In addition, the cutting oil supply apparatus of the tool stage of the conventional turret lathe has a problem of changing the degree by the pressure applied to the cutting oil nozzle is transferred to the name plate to cause a comfortable load.

In addition, since the cutting oil supply device of the tool stage of the conventional turret lathe is designed to be either one of the high pressure cutting oil and the low pressure cutting oil, there is a problem in that the high pressure cutting oil and the low pressure cutting oil cannot be used in parallel.

An object of the present invention is to solve the conventional problems as described above, so that when the supply of hydraulic pressure applied to the coolant nozzle for the rotation of the disk is stopped, a gap is formed between the coolant nozzle and the name plate. The present invention provides a cutting oil supply device for a tool stage of a turret lathe capable of preventing leakage of cutting oil.

Another object of the present invention is to provide a cutting oil supply device for a tool stage of a turret lathe that does not generate unbalanced load on the name plate by dispersing the pressure applied to the cutting oil nozzle without being transmitted to the name plate.

Still another object of the present invention is to provide a cutting oil supply device for a tool stage of a turret lathe that can be used in combination with high pressure cutting oil and low pressure cutting oil.

As a means for achieving the above object, the configuration of the present invention, the tool passage body is formed with the cutting flow path and the hydraulic passage, and the hydraulic passage connected to the hydraulic passage of the tool base body is formed on the top A cutting flow path connected to the cutting flow path of the tool bar body is formed in the middle portion, and an adapter having a through hole formed therein, a balance cap installed at an upper portion of the inside through hole of the adapter, and an inside through hole of the adapter. In the lower portion of the balance cap, the cutting oil nozzle is formed in the cutting flow path connected to the cutting flow path of the adapter therein, the spring is provided between the balance cap and the cutting oil nozzle, It is preferable to include a name plate having a cutting flow path connected to the cutting flow path of the cutting oil nozzle.

It is preferable that the structure of this invention further includes the plug provided in the hydraulic path of the said tool stand body.

The configuration of the present invention is preferably such that the cutting oil pressure when the plug is used is smaller than the cutting oil pressure when the plug is not used.

In the structure of the present invention, the cutting oil nozzle is preferably separated by the upper cutting oil nozzle and the lower cutting oil nozzle, and the spring is provided between the upper cutting oil nozzle and the lower cutting oil nozzle.

It is preferable that the balance cap absorbs the aforementioned reaction force when the force applied from the cutting oil nozzle to the name plate is returned to the cutting oil nozzle by reaction.

It is preferable that the configuration of the present invention further comprises an O-ring provided on the outer circumferential surface of the balance cap in order to prevent leakage between the balance cap and the adapter.

It is preferable that the structure of this invention further includes the O-ring provided in the outer peripheral surface of the said cutting oil nozzle in order to prevent the oil leakage between said cutting oil nozzle and an adapter.

The present invention can prevent leakage of cutting oil by preventing the formation of a gap between the cutting oil nozzle and the name plate when the supply of the hydraulic pressure applied to the nozzle for the rotation of the disk is stopped. Loss of pressure does not occur to the name plate, but is distributed, so as not to cause a load on the name plate, and has the effect that can be used in combination with high pressure coolant and low pressure coolant.

1 is a cross-sectional view showing a state in which a cutting oil supply device of a tool stage of a turret lathe according to a first embodiment of the present invention is installed on a tool stage.
2 is a cross-sectional configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a first embodiment of the present invention.
3 is a front configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a first embodiment of the present invention.
4 is a cross-sectional configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a second embodiment of the present invention.
5 is a cross-sectional configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a third embodiment of the present invention.
6 is a front configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention will become more apparent from the description of the preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not to be construed as limiting the scope of the invention as disclosed in the accompanying claims. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities, many of which are within the scope of the present invention.

Also, terms and words used in the description and claims of the present invention are defined based on the principle that the inventor can properly define the concept of a term in order to explain its invention in the best way, And should not be construed as limited to only the prior art, and should be construed in a meaning and concept consistent with the technical idea of the present invention. For example, the terms relating to directions are set on the basis of the position represented on the drawing for convenience of explanation.

1 is a cross-sectional view showing the cutting oil supply device of the tool stage of the turret lathe according to the first embodiment of the present invention is installed on the tool bar, Figure 2 is a tool stage of the turret lathe according to the first embodiment of the present invention 3 is a cross-sectional configuration diagram of the cutting oil supply device, and FIG. 3 is a front configuration diagram of the cutting oil supply device of the tool stage of the turret lathe according to the first embodiment of the present invention.

As shown in Figs. 1 to 3, the cutting oil supply device of the tool stage of the turret lathe according to the first embodiment of the present invention is a tool stage in which the cutting passage 11 and the hydraulic passage 12 are formed. A body 1 and a hydraulic passage 382 connected to the hydraulic passage 12 of the tool rest body 1 are formed at an upper portion thereof, and are connected to the cutting passage 11 of the tool rest body 1. The cutting flow path 381 is formed in the middle portion, the adapter 38 having a through hole formed therein, the balance cap 31 provided above the inner through hole of the adapter 38, and the above-mentioned. In order to prevent leakage between the balance cap 31 and the adapter 38, the O-ring 32 provided on the outer circumferential surface of the balance cap 31 and the above-described internal hole of the adapter 38 are described above. The cutting flow path 391 is installed at the lower portion of the balance cap 31 and connected to the cutting flow path 381 of the adapter 38. An o-ring 34 provided on the outer circumferential surface of the cutting oil nozzle 39 in order to prevent leakage between the cutting oil nozzle 39 formed in the portion and the cutting oil nozzle 39 and the adapter 38. A spring 36 provided between the balance cap 31 and the cutting oil nozzle 39 and a cutting flow path 21 connected to the cutting flow path 391 of the cutting oil nozzle 39 are formed. It consists of a name plate (2).

With the above configuration, the action of the cutting oil supply device of the tool stage of the turret lathe according to the first embodiment of the present invention is as follows.

When cutting oil is supplied through the cutting flow path 11 of the tool base body 1, the cutting flow path 381 of the adapter 38 connected to the cutting flow path 11 of the tool base body 1 and the The cutting oil is transferred to the cutting flow path 21 of the name plate 2 through the cutting flow path 391 of the cutting nozzle 39 which is connected to the cutting flow path 381 of the adapter 38, thereby cutting the oil into the cutting tool. Supplied.

In this case, while the hydraulic pressure is supplied through the hydraulic passage 12 of the tool post body 1, the hydraulic passage 382 of the adapter 38 connected to the hydraulic passage 12 of the tool post body 1. The hydraulic pressure is supplied to the space 33 between the balance cap 31 and the cutting oil nozzle 39 through the) to push the cutting oil nozzle 39 downward so that the clearance between the cutting oil nozzle 39 and the name plate 2 is increased. (g) does not occur.

Then, the supply of hydraulic pressure applied through the hydraulic passage 12 of the tool bar body 1 for the rotation of the disk connected to the name plate 2 for the rotation of the disk connected to the name plate (2) When stopped, the cutting oil nozzle 39 and the name plate (by pushing the cutting oil nozzle 39 downward by the elastic force of the spring 36 provided between the balance cap 31 and the cutting oil nozzle 39). 2) Make sure that no gap (g) occurs between them.

On the other hand, the hydraulic pressure supplied to the space 33 between the balance cap 31 and the cutting oil nozzle 39 or the elastic force of the spring 36 provided between the balance cap 31 and the cutting oil nozzle 39 It may be relatively large that the force applied from the coolant nozzle 39 to the name plate 2 may be returned to the coolant nozzle 39 by reaction, in which case the balance cap 31 is the force of the reaction. By absorbing this, the force applied to the cutting oil nozzle 39 is dispersed without being transmitted to the name plate 2 so as not to cause a load on the name plate 2.

4 is a cross-sectional configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a second embodiment of the present invention.

As shown in FIG. 4, the cutting oil supply device of the tool stage of the turret lathe according to the second embodiment of the present invention is further provided with a plug 4 in the hydraulic passage 12 of the tool stage body 1. Except for the points, the configuration is the same as that of the first embodiment shown in Figs.

With the above configuration, the action of the cutting oil supply device of the tool stage of the turret lathe according to the second embodiment of the present invention is as follows.

When cutting oil is supplied through the cutting flow path 11 of the tool base body 1, the cutting flow path 381 of the adapter 38 connected to the cutting flow path 11 of the tool base body 1 and the The cutting oil is transferred to the cutting flow path 21 of the name plate 2 through the cutting flow path 391 of the cutting nozzle 39 which is connected to the cutting flow path 381 of the adapter 38, thereby cutting the oil into the cutting tool. Supplied.

In this case, since the cutting oil used in the second embodiment of the present invention has a relatively low pressure cutting oil compared to the cutting oil used in the first embodiment, the cutting oil nozzle 39 is moved downward at a relatively high pressure. Since there is no need to push, the hydraulic pressure supplied through the hydraulic passage 12 of the tool bar body 1 using the plug 4 is cut off. In this way, the elastic force of the spring 36 provided between the balance cap 31 and the cutting oil nozzle 39 in a state in which the hydraulic pressure supplied through the hydraulic passage 12 of the tool post body 1 is shut off is used. By pushing the coolant nozzle 39 downward, the gap g is not generated between the coolant nozzle 39 and the name plate 2.

Then, the supply of hydraulic pressure applied through the hydraulic passage 12 of the tool bar body 1 for the rotation of the disk connected to the name plate 2 for the rotation of the disk connected to the name plate (2) Even in the case of being stopped, in this case, the hydraulic pressure is already blocked by the plug 4, and the cutting oil nozzle is caused by the elastic force of the spring 36 provided between the balance cap 31 and the cutting oil nozzle 39. The clearance g is prevented from occurring between the cutting oil nozzle 39 and the name plate 2 by pushing the 39 downward.

On the other hand, the elastic force of the spring 36 provided between the balance cap 31 and the cutting oil nozzle 39 is relatively large, and the force applied from the cutting oil nozzle 39 to the name plate 2 is reacted with the cutting oil nozzle. In the case of returning to the 39, the balance cap 31 absorbs the force caused by the reaction so that the force applied to the cutting oil nozzle 39 is dispersed without being transmitted to the name plate 2. Do not generate a load on the

5 is a cross-sectional configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a third embodiment of the present invention, and FIG. 6 is a front configuration diagram of a cutting oil supply device of a tool stage of a turret lathe according to a third embodiment of the present invention. to be.

As shown in Figs. 5 and 6, the cutting oil supply device of the tool stage of the turret lathe according to the third embodiment of the present invention has a cutting oil nozzle formed of an upper cutting oil nozzle 39a and a lower cutting oil nozzle 39b. 4, except that the spring 37 is not provided between the balance cap 31 and the cutting oil nozzle and is provided between the upper cutting oil nozzle 39a and the lower cutting oil nozzle 39b. The configuration is the same as that of the second embodiment shown in FIG.

With the above configuration, the action of the cutting oil supply device of the tool stage of the turret lathe according to the third embodiment of the present invention is as follows.

When cutting oil is supplied through the cutting flow path 11 of the tool base body 1, the cutting flow path 381 of the adapter 38 connected to the cutting flow path 11 of the tool base body 1 and the The cutting oil is transferred to the cutting flow path 21 of the name plate 2 through the cutting flow path 391 of the cutting nozzle 39 connected through the cutting flow path 381 and the space 35 of the adapter 38. Cutting oil is supplied to the cutting tool.

In this case, when the plug 4 installed in the hydraulic passage 12 of the tool post body 1 is removed, the hydraulic pressure is supplied through the hydraulic passage 12 of the tool post body 1, Hydraulic pressure is supplied to the space between the balance cap 31 and the upper coolant nozzle 39a through the hydraulic passage 382 of the adapter 38 connected to the hydraulic passage 12 of the tool rest body 1. The clearance g is not generated between the lower cutting oil nozzle 39b and the name plate 2 by pushing the cutting oil nozzle 39a, the spring 37, and the lower cutting oil nozzle 39b downward.

On the contrary, when it is not necessary to push the lower cutting oil nozzle 39b downward at a high pressure by using a relatively low pressure cutting oil, the hydraulic path of the tool rest body 1 using the plug 4 is used. 12) Shut off the hydraulic pressure supplied through. In this way, the elastic force of the spring 37 provided between the upper cutting oil nozzle 39a and the lower cutting oil nozzle 39b in a state where the cutting oil supplied through the hydraulic passage 12 of the tool rest body 1 is shut off. The lower cutting oil nozzle 39b is pushed downward to prevent the gap g between the lower cutting oil nozzle 39b and the name plate 2 from being generated.

Then, when the supply of the hydraulic pressure applied through the hydraulic passage 12 of the tool rest body 1 for the rotation of the disk connected to the name plate 2 is stopped, in this case by the plug 4 As the hydraulic pressure is already blocked, the lower cutting oil is pushed downward by pushing the lower cutting oil nozzle 39b downward by the elastic force of the spring 37 provided between the upper cutting oil nozzle 39a and the lower cutting oil nozzle 39b. The clearance g is not generated between the nozzle 39b and the name plate 2.

On the other hand, the hydraulic pressure supplied to the space between the balance cap 31 and the upper cutting oil nozzle 39a, or the elastic force of the spring 37 provided between the upper cutting oil nozzle 39a and the lower cutting oil nozzle 39b It may be relatively large that the force applied from the lower coolant nozzle 39b to the name plate 2 may be returned to the lower coolant nozzle 39b by reaction, in which case the balance cap 31 may react to the reaction. By absorbing the force, the force applied to the lower cutting oil nozzle 39b is dispersed without being transmitted to the name plate 2 so that the load on the name plate 2 is not generated.

As described above, the present invention can be used in parallel with the high pressure cutting oil and the low pressure cutting oil by using the plug 4.

1: Tool post body 2: Name plate
31: Balance cap 32, 34: O-ring
36, 37: spring 38: adapter
39: coolant nozzle

Claims (7)

A tool bar body having a cutting flow path and a hydraulic flow path formed therein;
An adapter having a hydraulic passage connected to the hydraulic passage of the tool post body at the upper portion and a cutting passage connected to the cutting passage of the tool post body formed at an intermediate portion, and having a through hole formed therein;
A balance cap installed at an upper portion of the inner through-hole of the adapter;
A cutting oil nozzle provided in a lower portion of the balance cap in the through-hole of the adapter and having a cutting flow path connected to the cutting flow path of the adapter;
A spring provided between the balance cap and the cutting oil nozzle;
Cutting oil supply device of the tool stage of the turret lathe characterized in that it comprises a name plate formed with a cutting flow path connected to the cutting flow path of the cutting oil nozzle. The method of claim 1,
Cutting oil supply device for a tool rack of the turret lathe characterized in that it further comprises a plug installed in the hydraulic passage of the tool bar body. 3. The method of claim 2,
The cutting oil supply apparatus of the tool stage of a turret lathe characterized by the coolant pressure at the time of using the said plug less than the cutting oil pressure at the time of not using the said plug. 3. The method according to claim 1 or 2,
The cutting oil nozzle is a cutting oil nozzle is separated into an upper cutting oil nozzle and a lower cutting oil nozzle,
And said spring is provided between said upper cutting oil nozzle and said lower cutting oil nozzle. 3. The method according to claim 1 or 2,
And the balance cap absorbs the force caused by the reaction when the force applied from the cutting oil nozzle to the name plate is returned to the cutting oil nozzle by reaction. 3. The method according to claim 1 or 2,
Cutting oil supply device for a tool rack of the turret lathe characterized in that it further comprises an O-ring provided on the outer peripheral surface of the balance cap in order to prevent leakage between the balance cap and the adapter. 3. The method according to claim 1 or 2,
Cutting oil supply device for a tool rack of the turret lathe characterized in that it further comprises an O-ring provided on the outer peripheral surface of the cutting oil nozzle in order to prevent leakage between the cutting oil nozzle and the adapter.

Images