JPS62218045A - Machining liquid supplier for turret rest - Google Patents

Abstract

PURPOSE:To simplify construction so as to enable a machining liquid supplier to be repaired easily, by providing a nozzle member which is supported by a machining liquid supplying side block which is provided in opposite to the rear side of a turret rest, in opposite to the rotational or bit of a machining liquid receiving and supplying hole. CONSTITUTION:On the surface of the rear side 13 of a turret rest 9, a machining liquid receiving and supplying hole 19 corresponding to respective tools on the circumference 17 of a prescribed radius of which center is the turning axis 15 of the turret rest 9 is provided. A machining liquid channel 21 is drilled inside the turret rest 9 from the machining liquid receiving and supplying hole 19 to the vicinity of the respective tool holding portion 23 of the capstan rest 9. An injection nozzle 25 is mounted to here, and certain amount of machining liquid which is suitable for the machining portion of a work piece by tools is supplied at a prescribed angle from the nozzle 25. A machining liquid supplying side block 31 is provided in opposite to the rear side 13 of the turret rest 9, a machining liquid supplying passage 33 is drilled inside the machining liquid supplying side block 31, and one end 35 of the passage is connected with a machining liquid supplying pipe via a coupling 37.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application 1] The present invention relates to improvement of a turret tool rest of a machine tool such as a lathe, particularly a lathe or the like equipped with a turret tool rest.

[Conventional technology 1 A so-called turret machine equipped with a turret tool post that holds multiple tools! Machine tools such as I are widely used because they allow quick tool changes. If the machining surface of the workpiece has a simple configuration, the supply of cutting fluid required depending on the cutting conditions etc. can be adjusted by attaching a flexible pipe etc. equipped with a cutting fluid jet nozzle to a fixed member near the top of the workpiece. Then, processing is performed using a so-called fixed nozzle method.

However, if the machined surfaces of the workpiece have a rough configuration, there will be places where the cutting fluid is insufficiently supplied using the fixed nozzle method. In other words, it is possible to follow the supply direction and supply position of cutting fluid.
I have to arrange it. For this purpose, the turret shaft of the turret tool post is made into a hollow shaft, cutting fluid is supplied into this hollow shaft, and a cutting fluid passage is provided inside the turret tool post via a rotary joint mechanism to reach the vicinity of each tool holding group. Some devices introduce cutting fluid and supply it from nozzles provided near each tool holder.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional cutting fluid supply device, the former fixed nozzle method is insufficient for complex machining, and the latter method supplies cutting fluid into the hollow shaft. In a method in which the cutting fluid is introduced near each tool holding part of the turret tool rest, the introduction route for the cutting fluid becomes extremely complicated, and the manufacturing process is labor-intensive, often leading to high costs. In addition, it is extremely difficult to inspect and repair when chips or the like enter the rotary joint in the path and cause a leak.

The present invention was devised in view of the above-mentioned conventional problems.
To provide a cutting supply device for a turret tool rest that has a very simple structure, is easy to manufacture, and has few failures.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cutting fluid inlet corresponding to each tool on the same circular arc on the back of a turret tool rest holding a plurality of tools. , a nozzle member supported on a cutting fluid supply side block which is stacked in parallel facing the back surface of the turret tool rest, is connected to the nozzle member supported by the cutting fluid supply side block which is stacked in a row facing the back surface of the turret tool post. The cutting fluid supply device for the turret tool post is configured such that the member is always pressed into contact with the back surface of the turret tool post.

[Function] By having the cutting fluid supply device for the turret tool post of the present invention configured as described above, S! i@The path from the vicinity of each tool being held to the cutting fluid inlet on the back of the turret tool rest is very simple and short, almost in the shape of a single character, and each path has approximately the same dimensions. Since each cutting fluid inlet on the back of the turret turret is arranged on the same arc, the nozzle member supported on the cutting fluid supply block provided opposite thereto is on a flat surface. In the contact state, the cutting fluid paths are precisely aligned and connected for each index angle rotation of the turret tool post. Furthermore, since the nozzle member is always pressed against the back surface of the turret tool post, a sealing function that does not cause any practical problems can be easily maintained.

[Embodiment 1] Hereinafter, one embodiment of the apparatus of the present invention will be described based on the drawings. FIG. 1 is an explanatory plan view of a turret lathe using the turret tool rest of the present invention, and FIG. 2 is a longitudinal cross-sectional view of a main part of the turret tool rest.

Headstock 1. The turret tool post provided on the work table 7 of the turret lathe 5 equipped with the tailstock 3 carries a plurality of tools (not shown), such as a cutting tool, a drill rotated by a separate motor drive unit 11, a milling cutter, etc. It can be installed and held.

On the surface of the back surface 13 of this turret tool rest 9, a cutting fluid corresponding to each tool is placed on a circumference 17 of a predetermined radius centered around the rotation axis 15 of the turret tool rest 9, that is, on the same circular arc 17.1. A receiving port 19 is provided.

1 and 7 from the cutting fluid inlet 19 to the inside of the turret tool rest 9.
The J liquid removal path 21 is drilled and extends to the vicinity of each tool holding portion 23 of the turret tool rest 9. Here is the spout nozzle 25
is installed, and an appropriate level of cutting fluid is supplied from this nozzle 25 at a predetermined angle to a part of the workpiece 29 to be machined by a tool such as a drill 27.

A cutting fluid supply side block 31 is provided opposite to the back surface 13 of the turret 1-turret 9. In this embodiment, the cutting fluid supply side block 31 is used for the drill 2 among various tools mounted on the tool holder 23 of the turret tool rest 9.
It also serves as a support block for a separate motor drive unit 11 for a rotary tool such as 7 or the like.

A cutting fluid supply path 33 is provided inside the cutting fluid supply side block 31.
is provided with a hole, and a fitting fitting 37 is provided at one end 35 of the hole.
Cutting fluid supply piping (not shown) is connected via. And on the other end side 39, the Ojf mark is attached to the back side 13 of the tool rest 9.
The nozzle member 41 is placed in such a way that the nozzle member 41 always protrudes +15 in contact with the top.
is fitted so as to be slidable in the axial direction and watertightly via a seal member 43.

The nozzle member 41 rotates from the rotation locus of the cutting fluid inlet 19 on the back surface 13 of the turret tool rest 9, that is, from the turret I to the turret center of rotation 15, around the circumference 17 of a predetermined radius of IJ, that is, on the same circular arc. 17 and are provided opposite to each other. Therefore, when the turret 1 and the turret 9 are divided and rotated by the index angle, the nozzle portion I441 is inserted into each cutting fluid receiving port 19.
The axes of the two are precisely aligned and form a joint portion 45 to which the cutting fluid supply path is connected.

Further, a coil spring 47 is fitted in a compressed state in the cutting fluid supply path 33 on the front side of the nozzle member 41. Therefore, the nozzle member 41 is always connected to the back surface 1 of the turret tool rest 9.
3 side with a constant pressure to perform the sealing function of the joint portion 45 of the cutting fluid supply path.

The cutting fluid supply device for a turret tool post of the present invention is configured as described above, so that the joint portion that moves relative to the cutting fluid supply path is the joint portion 4 at the tip of the nozzle member 41.
There are only 5. This joint portion 45 is of a planar contact type, and the nozzle 41 side is always pressed by a coil spring 47 toward the opposing surface side.

In this way, the body structure is extremely simplified, and as mentioned above, the path 21 on the cutting fluid receiving side is particularly short and has a simple shape. Therefore, drilling of the cutting fluid path 21 is very easy, and since the relative motion joint FIS 45 has a planar contact type, 1:s accuracy machining can be easily performed. Furthermore, since the spring pusher LE is used in combination, a sealing function that is much more durable than a sealing mechanism using a sealing member such as an oil seal that is often used between a shaft with a circular cross section and a sleeve can be exhibited.

Furthermore, because of the above-described structure, it is very easy to take measures to prevent the intrusion of chips and to take measures in the unlikely event that damage occurs. In other words, since the relative motion joint 45 is present near the outer periphery of the turret tool rest 9, it is possible to install, for example, a ring-shaped cover surrounding the outer periphery of the turret tool rest 9 near the n-plane 13, or to remove the nozzle member 41. Countermeasures include installing a cover that doubles as a scraper using a soft elastic material that surrounds the outer periphery of the tip, or installing a ring-shaped protector that uses a chip blowing function by blowing air around the outer periphery of the tip of the nozzle member 41. can be easily done.

In addition, in the event that a trouble occurs, it is very easy to check and disassemble and repair it because it is near the outer periphery of the back surface of the turret tool post 9, so it is close to the outside.

Therefore, these places are 1! The F time is also short, and there is little negative impact on the operating time of the machine tool.

The device of the present invention is not limited to the one embodiment described above, and can be modified and applied in various ways. For example, a ring-shaped liner member made of a different material may be installed in the area on the back surface 13 of the turret tool rest 9 where the cutting fluid inlet 19 is arranged, so that the material is wear-resistant or prevents scratches from occurring when chips enter. It can also be made of difficult materials. 'On the other hand, it is also possible to use inexpensive materials and replace them every semester when some wear occurs.

It goes without saying that the above-mentioned alternative embodiment can be implemented not only on the back surface 13 side of the turret tool rest 9 but also on the nozzle member 41 side that comes into pressure contact here. Further, in addition to the turret lathe, the present invention can be similarly applied to machine tools using a turret tool rest, and has a wide range of applications.

[Effects] As is clear from the above explanation, the cutting fluid supply device for the turret tool post of the present invention has an extremely advantageous structure! It is simple and very easy to manufacture. Moreover, there are many advantages such as fewer failures, and even if a failure should occur, inspection and repair can be done very easily and in a short period of time.

[Brief explanation of drawings]

FIG. 1 is an explanatory plan view of a turret lathe to which the apparatus of the present invention is applied, and FIG. 2 is a longitudinal cross-sectional view of the main parts of the apparatus of the present invention. Explanation of main drawing symbols 9...Turret tool post 13...Back surface of turret tool post 17...Circumference of a predetermined radius (same circular arc) 19-...Cutting fluid inlet 31...Cutting fluid supply Side block 41--Nozzle member Fig. 1 Fig. 2CI

Claims (1)

[Claims] A cutting fluid inlet corresponding to each tool is provided on the same arc on the back surface of a turret tool post holding a plurality of tools, and the cutting fluid receiving port is supported by a cutting fluid supply side block provided opposite to the back surface of the turret tool post. A cutting fluid supply device for a turret tool rest, characterized in that a nozzle member is provided opposite to the rotation locus of the cutting fluid inlet, and the nozzle member is always pressed into contact with the back surface of the turret tool rest. .