JP2001198701A - Tool rest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the number of tools to be mounted without increasing a finishing machine in scale, to perform efficient working and to shorten working time. SOLUTION: Tool rests 1, 2 in a lathe device provided with a spindle 5 and a back face spindle 6 disposed opposite to the spindle 5, wherein the tool rests 1, 2 are disposed to make a pair on both opposed sides with rotary axes of the spindle 5 and the back face spindle 6 as centers and to be movable in first directions X, Y approaching to the rotary axes and second directions A, B crossed orthogonally with the first directions X, Y respectively, within a plane perpendicular to the rotary axes. At least one of the tool rests 1, 2 arranges a plurality of tools 4 in each of the second directions A, B in parallel and holds the tools 4 in two rows within each of two planes perpendicular to the rotary axes of the spindle 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool rest in a lathe apparatus.

[0002]

2. Description of the Related Art A conventional tool post is manufactured by Tsugami Corporation.
It is disclosed in the NC precision automatic lathe BS12 / 18A catalog, and its gist will be described with reference to FIG.

[0003] With the main shaft 105 of a lathe (not shown) holding a workpiece (a bar material in which one end side of a long bar is exposed as a workpiece) 107 as a center, the workpiece 107 is processed.
There are tool rests 101 and 102 in which a plurality of tools (tools) 104 for performing machining are arranged on the left and right, respectively, and attached to the front surface of the lathe apparatus. The main shaft 105 is rotatable,
In addition, the bar material 107 can move back and forth in the Z direction (the rotation axis direction of the main shaft 105) in the drawing.

The tool rest 101 is movable in the directions of arrows X and A in the figure, and the tool rest 102 is movable in the directions of arrows Y and B in the figure. That is, the tool rest 101 is
And the main shaft 1
Each tool 104 of the tool rest 101 moves so as to be able to face the workpiece 107 held at 05 and can move in the direction of arrow A perpendicular to the X direction. The tool rest 102 is moved in the direction of the arrow Y in which the tool rest 102 approaches the main shaft 105 and moves so that each tool 104 of the tool rest 102 can face the workpiece 107 held on the main shaft 105. , Y direction.

[0005] The arrangement of the tools 104 attached to the tool rests 101, 102 is the same as that of the tool rests 101, 10 respectively.
2 are in the same plane, and arrows A and B in the figure.
The tool post 101 and the tool post 1
02 can be moved in the directions of the arrows X and A and the directions of the arrows Y and B together. That is, the tool rests 101 and 102
Can be said to be in the same plane parallel to the front surface of the lathe device and in the plane perpendicular to the axis of rotation of the main shaft 105. Therefore, the tool rests 101 and 102 are referred to as comb-shaped tool rests because the shape when the tools 104 are arranged in parallel on the tool rests 101 and 102 is like a comb tooth.

In the example of FIG. 9, the tool rests 101 and 102 are used.
The tools 10 respectively held on the spindle 103
4 (the rotating tool 10 rotated by the spindle 103)
4a and a cutting tool 104b for cutting the bar material 107). These tools 104 are different from each other in outer diameter dimension, tip end shape, and the like. In FIG. 9, four tools 104 are held by the tool rests 101 and 102, respectively.

At the position facing the main shaft 105, the front end of the work 107 held by the main shaft 105 is held, and then the base end of the exposed work 107 is cut off. A rear spindle 106 for receiving the workpiece 107 cut from the main shaft is arranged. Back spindle 10
6 is rotatable, and can be rotated in the direction of arrow ZC (the main shaft 10).
5 and the XC direction (the same direction as the X and Y directions in which the tool rests 101 and 102 approach the main shaft 105).

The back spindle 106 receives the other end of the workpiece 107 cut from the spindle 105, and holds the cut workpiece 107 so that the respective tools 104 can perform predetermined machining on the cut workpiece 107. I do. The rotating tool 1
In the case where the workpiece 107 is machined by 04a, the workpiece 107 may not need to be rotated in some cases.

When machining the workpiece 107 held on the main shaft 105, the tool rest 101 or 102 moves in the direction of arrow A (or arrow B), and the tool 104 to be used is selected from the plurality of tools 104. After the tool 104 to be selected and used is opposed to the workpiece 107, the tool rest 101 or 102 is moved in the direction of the arrow X (or arrow Y) to cut (machining) the workpiece 107 by the tool 104. I do.

The workpiece 1 held by the spindle 105
After the completion of machining on the workpiece 07, the tool rest 101 or 102 is moved in the direction of the arrow X (or arrow Y) to separate the tool 104 from the workpiece 107, and the back spindle 106 is moved in the direction of the arrow ZC (and if necessary). Arrow XC according to)
Then, the back main shaft 106 holds the other end side (front end side) of the workpiece 107 held by the main shaft 105.

Then, the tool rest 102 is moved in the directions of arrows B and Y, and the base end side of the workpiece 107 is cut by the cutting tool 104b, and the workpiece 107 is transferred to the back spindle 106. Further, as described above, the tool post 101 or the tool post 102 is moved in the directions of the arrows A and X (or arrows B and Y) to select the tool 104 to be used, and the tool 1 is selected.
Workpiece 107 held on back spindle 106 by 04
Processing to Further, the bar material held on the main shaft 105 is moved in the direction of the arrow Z to send the processed portion to the front end side of the main shaft 105, and the workpiece 107 is prepared for the next processing.

[0012]

In the tool rests 101 and 102 disclosed in the prior art, since the tools 104 are arranged in a line in the A and B directions on the same plane, the tool rests 101 and 102 are arranged. The number of tools 104 attached to
The size of the tool rests 101 and 102 (the tool 104 is indicated by an arrow A,
(Dimension in the arrangement direction when arranged in parallel in the B direction) and the stroke of the tool rest 101 or 102 in the direction of arrow A (or arrow B). Tool post 101, 1
When the number of tools 104 is increased when the size of 02 is determined, the stroke may be increased. However, by increasing the stroke of the tool rests 101 and 102, the size of a processing machine (lathe apparatus) increases. Would. In addition, when the stroke of the tool rests 101 and 102 is increased, the moving time at the time of tool selection is also increased.

Further, since the arrangement of the tools 104 attached to the tool rests 101, 102 is in the same plane as each of the tool rests 101, 102, the main shaft 105 is provided by the tool 104 of one of the tool rests 101 (or the tool rest 102). When processing the workpiece 107 on the side, the one tool post 101
The processing on the back spindle 106 cannot be performed by the other tool 104 (or the tool rest 102) or the tool 104 of the other tool rest 102 (or the tool rest 101), and the processing is performed on the back spindle 106 side. In this case, the workpiece 107 cannot be machined on the spindle 105 side.
There is a disadvantage that the processing time is long.

That is, when a workpiece 107 made of a rod material is prepared on the main spindle 105 and a cut workpiece 107 is held on the rear main spindle 106, both the workpieces 107 are used. Ready for machining, but the spindle 1
05 and the workpiece 107 held on the back spindle 106 by the tool 104 of the tool rests 101 and 102,
Because both are performed only on one plane,
Since machining cannot be performed simultaneously on the spindle 105 side and the back spindle 106 side, machining is performed sequentially, and the machining time becomes longer.

The present invention has been made in view of the above-mentioned problems of the prior art, and can increase the number of tools to be mounted without increasing the size of a processing machine, perform efficient processing, and reduce the processing time. It is an object of the present invention to provide a tool post in a lathe device that can perform the tool post.

[0016]

According to a first aspect of the present invention, there is provided a tool rest in a lathe having a main spindle and a rear spindle disposed opposite to the main spindle. In the platform, the tool rest is paired on both sides facing each other around a rotation axis of a main spindle and a rear main spindle, and in a plane perpendicular to the axis, a first direction approaching the axis, and Movement in a second direction orthogonal to the first direction is provided so as to be respectively enabled, and at least one of the tool rests includes a plurality of tools arranged in parallel in the second direction in two planes perpendicular to the axis. It is characterized in that it is held in two rows side by side.

Further, the tool rest according to claim 2 of the present invention,
In the tool rest according to claim 1, the tools held in the tool rest in two rows are arranged in the first direction and the tools arranged in the second row in the second direction. It is characterized by being arranged with a shift of about a half pitch.

That is, in the tool rest according to the first aspect of the present invention, a plurality of tools are arranged in parallel in the second direction and held in two rows. The processing of the workpiece held on the main spindle or the rear main spindle is performed by moving the tool rest in the second direction to select a tool to be used, and moving the tool rest in the first direction to perform processing with the selected tool. At the time of this processing, processing on the main spindle side by a tool arranged on one of the turrets provided at opposing positions, and processing on the back spindle side by a tool arranged on the other turret,
Allows to do at the same time.

In the tool rest according to a second aspect of the present invention, the tools held in two rows on the tool rest are shifted by a half pitch in the second direction between the first row and the second row. Are arrayed, and 1
The distance between the tools arranged in the second row and the second row is reduced, and the outer dimensions of the tool post are reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tool rest according to the present invention will be described below in detail with reference to an embodiment shown in the drawings.

(Embodiment 1) The configuration of a tool rest according to Embodiment 1 of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. FIG. 1 is a perspective view showing a tool post of the present embodiment including a part of a lathe apparatus, and FIG. 2 is a view showing a tool post of the present embodiment.
FIG. 3 is a view in the direction of arrow D in FIG. 1.

In FIG. 1, a main shaft 5 of a lathe (not shown) is rotatable, and a rod material 7a to be processed is formed on one end side (hereinafter, referred to as a front end side) of a portion to be processed on a rotation axis thereof. The workpiece 7 is exposed from the tip of the main shaft 5 and can be held.
Can move forward and backward in the rotation axis direction (Z direction).

A back main shaft 6 is provided at a position facing the front end of the main shaft 5. The back main shaft 6 can hold and receive the front end side of the workpiece 7 of the bar material 7a held by the main shaft 5 on the front end side. This back spindle 6
Has a rotation axis parallel to the rotation axis of the main shaft 5, is rotatable, and has a Z axis on the same rotation axis as the rotation axis of the main shaft 5.
It can move back and forth in the C direction and the XC direction orthogonal to it.

As shown in FIG. 3, the tool rests 1 and 2 are arranged at positions on the front side of a lathe device (not shown) opposite to each other about the rotational axis of the main spindle 5 and the rear main spindle 6. I have.
A plurality of tools 4 can be attached to the tool rests 1 and 2,
The tool post 1 is in the directions of arrows X and A, and the tool post 2 is in the directions of arrows Y and B.
It can be moved in any direction. Here, the arrow X direction is the first direction in which the tool rest 1 approaches the main shaft 5, and the arrow A direction moves so that each of the tools 4 of the tool rest 1 can face the main shaft 5, This is a second direction orthogonal to the first direction which is the X direction. The arrow Y direction is the main shaft 5
Is the first direction in which the tool rest 2 approaches, and the arrow B direction moves so that the respective tools 4 of the tool rest 2 can be opposed to the main shaft 5, respectively, with respect to the first direction which is the Y direction. This is a second direction orthogonal to the first direction. Hereinafter, arrows X, A, Y, B
The directions are referred to as X-axis, A-axis, Y-axis, and B-axis directions.

The tool 4 is mounted on the tool rests 1 and 2 via the spindle 3 with the blade of the tool 4 facing the workpiece 7 mounted on the main shaft 5. The spindle 3 has a configuration for rotating a tool 4 attached to the tool mounting side of the spindle 3, and is used by attaching rotating tools 4a and 4b.

The spindle 3 to which the rotary tools 4a and 4b are attached is arranged on the tool rests 1 and 2 as shown in FIG. FIG. 2 is a diagram of the tool 4 attached to the tool rests 1 and 2 viewed from the front side of the blade portion of the tool 4 in the direction indicated by the arrow C in FIG.

That is, in the tool rest 1 shown in FIG.
Spindle 3 equipped with rotary tool 4a and rotary tool 4b
Are the two parallel planes perpendicular to the rotation axis of the main shaft 5, the H1 plane on the main shaft 5 side and the rear main shaft 6 separated from the main shaft 5.
(Two in the figure) in the A-axis direction, which is the direction in which each tool 4 of the tool rest 1 moves to the pair with respect to the rotation axis of the main shaft 5 in two planes of the H2 plane on the side. Are arranged in two rows.

Further, in the tool post 2, similarly to the tool post 1, two parallel planes orthogonal to the rotation axis of the main shaft 5, the H3 plane on the main shaft 5 side and the back main shaft 6 side away from the main shaft 5. In each plane of the H4 plane, a plurality of (three rotations in the figure) are performed in the B-axis direction in which the respective tools 4 of the tool rest 2 move so as to be pairwise with respect to the rotation axis of the main shaft 5. A row consisting of a spindle 3 with a tool and one cutting tool 4c;
Each of them is arranged in two rows by arranging a single row of spindles 3 with rotary tools.

The H1 plane and the H3 plane are located on the same plane, and the H2 plane and the H4 plane are located on the same plane. In addition, in FIG.
Since they are viewed from the side, the H4 plane is displayed on the H1 plane, the H3 plane is displayed on the H2 plane, and
The illustration of the cutting tool 4c arranged on the tool post 2 is omitted. Therefore, the tool rests 1 and 2 have the tool 4
Are arranged in parallel, the shape is like a comb, so it is called a comb-shaped tool post.

The operation of the tool rests 1 and 2 having the above configuration will be described with reference to FIGS. 1, 4, 5 and 6. FIG. 4 shows a state in which the workpiece 7 of the bar material held on the spindle 5 is being machined by the tool 4 of the tool rest 1, and FIG. 5 shows the workpiece 7 held on the back spindle 6 by the tool 4 of the tool rest 1. Processing state, FIG. 6
Shows a state in which the workpiece 7 held by the main spindle 5 and the rear main spindle 6 is simultaneously processed by the tools 4 of the tool rest 1 and the tool rest 2.

In FIG. 1, a processing position in the Z-axis direction of a workpiece 7 that exposes one end side of the bar material 7a from the main shaft 5 as a processing portion with respect to a long bar material 7a held in the main shaft 5. Is performed by a material advance / retreat by a material feeder (so-called well-known bar feeder) arranged near the inside of the main shaft 5.

The selection of the rotary tools 4a and 4b as the tools 4 used for processing the workpiece 7 is performed by moving the tool rests 1 and 2 in the A-axis direction or the B-axis direction.
The positioning of the processing position in the A-axis direction or the B-axis direction is similarly performed by moving the tool rests 1 and 2 in the A-axis direction or the B-axis direction.

FIG. 4 shows the state of machining of the workpiece 7 on the main spindle 5 side with the rotary tool 4a selected from the tools 4 of the tool rest 1. As shown in FIG. The tool rest 1 is moved in the X-axis direction so as to approach the main shaft 5, and the selected rotary tool 4a is moved.
Then, the workpiece 7 is processed. The machining of the workpiece 7 on the main spindle 5 side is mainly performed by the rotary tool 4 positioned in the row on the main spindle 5 side.
a, that is, one of the four rotary tools 4a arranged in parallel on the H1 plane.

Further, if necessary, the rotary tool 4a on the H1 plane or the rotary tool 4a on the H3 plane is moved along with the tool rests 1 and 2 in the A-axis or B-axis direction with respect to the workpiece 7, if necessary. 4 is selected, and machining is performed with the tool 4.
After this processing, the back spindle 6 is moved in the ZC direction so as to approach the spindle 5 side and advances, and the front end side of the workpiece 7 held by the spindle 5 is held by the back spindle 6, and then the tool post is moved. 2, the cutting tool 4c of the tool 4 is selected to cut the workpiece 7 which is the workpiece from the bar material held by the spindle 5, and then the back spindle 6 holding the workpiece 7
Retreat. Next, the cut workpiece 7 is processed.

FIG. 5 shows a state of processing on the back spindle 6 side. The processing on the back spindle 6 side is mainly performed by the tool 4 located in the row on the back spindle 6 side, that is, the H of the tool rests 1 and 2.
The rotation is performed by the rotary tools 4b arranged on the two planes or the H4 plane.

When the workpiece 7 held by the back spindle 6 is processed, a long bar material in the spindle 5 is fed out by a material feeder, and a new bar material is processed from one end side of the spindle 5. The workpiece 7 is exposed as a part, and the new workpiece 7 is processed as described above.

FIG. 6 shows the state of simultaneous machining on the spindle 5 side and the back spindle 6 side. On the spindle 5 side, the spindle 5
On the H1 plane or H3 of the tool rests 1 and 2 located in the side row
The rotating tool 4a on the plane is selected, and the new workpiece 7 is machined by the selected rotating tool 4a. Also,
On the back spindle 6 side, a tool rest opposite to the tool rest that is processing the spindle 5 side is located on the H2 plane on the back spindle 6 side or H
The workpiece 7 received from the spindle 5 is machined by the rotary tools 4b located in rows on four planes. FIG. 6 shows a state in which the workpiece 7 on the main spindle 5 side is processed by the rotary tool 4a on the H1 plane, and the workpiece 7 on the rear main spindle 6 side is processed by the rotary tool 4b on the H4 plane.

Therefore, according to the first embodiment of the present invention,
The type of the tool 4 for processing the workpiece 7 is the tool post 1,
2, two rows on the H1 plane and H2 plane on the tool rest 1, and H3 on the tool rest 2
Since the tool 4 is held in the tool rests 1 and 2 in two rows on the plane and the H4 plane, the number of tools 4 can be increased, and the spindle 5
Since the processing of the workpiece 7 held on the main spindle 6 and the processing of the workpiece 7 held on the back spindle 6 can be performed simultaneously, the processing time can be shortened.

(Embodiment 2) The configuration of Embodiment 2 of the present invention will be described with reference to FIG. FIG. 7 shows the tool post 2
3 shows the arrangement of the tools 4 when the tools attached to the front view are viewed from the front.

The first row of rotary tools 8 arranged on the H3 plane, which is the main spindle 5, and the second row of rotary tools 9 arranged on the H4 plane, which is the rear main spindle 6, include: The rotary tools in the same row are arranged with a shift of １ ／ of the pitch 10 between the rotary tools. Therefore, each of the rotary tools 8, 9 in the first row and the second row
Since the distance between the H3 plane and the H4 plane in which are arranged can be made smaller than in the first embodiment, the outer dimensions 11 of the tool rest can also be made smaller.

The operation of the second embodiment will be described with reference to FIG. FIG. 8 shows a state of processing the workpiece 7 on the side of the back spindle 6. In the present embodiment, the first embodiment
In the same manner as described above, machining is performed on the workpiece 7 on the main shaft 5 side. Thereafter, the front end of the workpiece 7 is held by the back main spindle 6, and the workpiece 7 as the workpiece is processed from the long rod material 7a.
Is cut by the cutting bit 12 arranged on the H3 plane, and after the workpiece 7 is transferred to the back spindle 6, the workpiece 7 held by the back spindle 6 is processed.

At this time, even when the workpiece 7 held by the back spindle 6 is long and the tip of the workpiece 7 is located on the H3 plane where the rotary tools 8 are arranged, the H3 plane on the spindle 5 side is used. By shifting the upper tool arrangement and the tool arrangement on the H4 plane on the back spindle 6 side by ピ ッ チ pitch (half a pitch), the work 7 can be machined by the rotary tool 9 on the H4 plane. Further, machining with the rotary tool 8 on the H3 plane is also possible.

According to the second embodiment of the present invention, since the tool arrangement on the H3 plane and the tool arrangement on the H4 plane are shifted by ピ ッ チ pitch (half pitch), the size 11 of the tool rest is reduced. can do. Also, even when the length of the product (workpiece 7) to be processed is long, it does not interfere with the tools arranged in the adjacent row.

In the first and second embodiments of the present invention, each of the tool rests 1 and 2 disposed on opposite sides of the rotation axis of the main shaft 5 as a center, H
A plurality of tools are arranged in parallel in the A-axis direction and the B-axis direction on one plane and on the H2 plane, and on the H3 plane and the H4 plane orthogonal to the back main shaft 6, but the invention is not limited to this. Depending on the number of tools to be performed, a plurality of tools are arranged in parallel on one plane on one of the turrets, and on two planes (for example, on the H1 plane and the H2 plane) on the other turret. A configuration in which a plurality of tools are arranged in parallel may be adopted.

The technical idea having the following configuration is derived from the above-described specific embodiment. (Supplementary note) (1) In a tool rest of a lathe device having a main spindle and a rear main spindle, the tool rest is located on both sides facing each other around the axis of the main spindle and the rear main spindle, and is orthogonal to a plane perpendicular to the axis. A lathe comprising: a plurality of rotating tools each capable of moving in the axial direction and arranged in two rows in a plane parallel to the axis along one of the two axes. Tool post in equipment.

According to the tool post of the supplementary note (1), the number of tools attached to the tool post can be increased, and the workpiece can be machined on the spindle side and the back spindle side simultaneously. Therefore, the processing time can be reduced.

[0047]

As described above, according to the first aspect of the present invention,
According to the tool rest according to the above, it is possible to increase the number of tools attached to the tool rest, and it is possible to simultaneously work on the workpiece on the spindle side and the back spindle side, so that the processing time Shortening can be achieved.

Further, according to the tool rest according to the second aspect of the present invention, since the tools in the first row and the tools in the second row are arranged with a shift of substantially half a pitch, the outer dimensions of the tool rest can be reduced. . Further, even for a long work piece, machining can be performed with a tool arranged in another row without interfering with a tool arranged in one row.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tool post including a main spindle and a rear main spindle according to Embodiment 1 of the present invention.

FIG. 2 is a view taken in a direction indicated by an arrow C in FIG. 1;

FIG. 3 is a view in the direction of arrow D in FIG. 1;

FIG. 4 is a diagram showing a state at the time of machining on the spindle side according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a state at the time of machining on the back spindle side in the first embodiment of the present invention.

FIG. 6 is a diagram showing a state where simultaneous machining is performed on the spindle side and the back spindle side according to the first embodiment of the present invention.

FIG. 7 is a diagram illustrating a tool arrangement in a tool rest according to a second embodiment of the present invention.

FIG. 8 is a diagram showing a state at the time of machining with a back spindle according to the second embodiment of the present invention.

FIG. 9 is a diagram for explaining a conventional technique.

[Description of Signs] 1, 2 Turret 3 Spindle 4 Tool 4a, 4b Rotating Tool 4c Cutting Tool 5 Spindle 6 Back Spindle 7 Workpiece 7a Bar Material 8, 9 Rotating Tool 10 Pitch 11 Dimensions 12 Cutting Tool

Claims (2)

[Claims] 1. A tool rest in a lathe apparatus having a main spindle and a rear spindle disposed opposite to the main spindle, wherein the tool rest is paired on both sides opposed to each other about a rotation axis of the main spindle and the rear spindle. And a first direction approaching the axis in a plane perpendicular to the axis and the first direction
The tool rest is provided so as to be capable of moving in a second direction orthogonal to the direction, and at least one of the tool rests is configured by arranging a plurality of tools in parallel in the second direction in two planes perpendicular to the axis. A tool post in a lathe device, which is held in a row. 2. A tool held in two rows on the tool post comprises:
2. The lathe apparatus according to claim 1, wherein the arrangement of the tools arranged in the second row and the arrangement of the tools arranged in the second row are arranged with a shift of substantially half a pitch in the second direction. 3. Tool post.