JP2001157901A - Numerically controlled lathe having rotary tool rest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary tool rest of a numerically controlled lathe which can reduce the size of a facility by saving the space, and shorten the cycle time by reducing the indexing time of a tool. SOLUTION: In the numerically controlled lathe having the rotary tool rest 11 in which the tool 100 is selected among a plurality of tools 100 provided on the rotatable rotary tool rest 11, and a work is machined by the selected tool 100, a plurality of the tools 100 are provided in and perpendicular to the plane of rotation of the rotary tool rest 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a numerically controlled lathe having a rotary tool rest.

[0002]

2. Description of the Related Art FIGS. 6 and 7 show a conventional rotary tool rest.
The rotary tool rest 111 has a disk shape, and is attached so that a longitudinal axis of the rod-shaped material W is perpendicular to a rotation surface thereof. A plurality of stages 112 are attached to the outer peripheral surface of the rotary tool rest 111, and each stage 112 has a tool 113 necessary for processing in advance.
Is attached.

[0003] A tool 113 is mounted parallel to the rotation plane of the rotary tool rest 111. In the rotary tool post 111,
The motor 114 is connected, and the rotation of the motor 114 performs indexing of the tool 113 required for machining.

In processing the material W, the material W is supplied from a main shaft 101 through a guide bush 102, and the material W is moved in the front-back direction (Z-axis direction) when viewed from the side, and the rotary tool rest 111 is moved in the left-right direction (X-axis direction). It is processed into various shapes by moving to.

The material W is moved in the Z-axis direction by a Z-axis servo motor (not shown). The rotary tool rest 111 is moved by a slide 121 attached to the rotary tool rest 111 sliding on a guide rail 122 in the left-right direction (X-axis direction) by an X-axis servomotor (not shown).

[0006]

SUMMARY OF THE INVENTION Conventional rotary tool rest 11
In No. 1, the tool 113 was attached parallel to the rotation plane of the rotary tool rest 111, that is, perpendicular to the rotation axis of the rotary tool rest 111. For this reason, a large space was required to mount the rotary tool rest 111 in the processing machine.

Further, when the tool 113 is attached to the rotary tool rest 111, the tool 113 becomes longer in the vertical direction, so that the vertical movement (Y-axis direction) of the rotary tool rest 111 is restricted.

Furthermore, in the conventional rotary tool rest 111, since the distance between the tools 113 is large, the specific tool 1
It took a long time to figure out 13.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a rotary tool rest of a numerically controlled lathe capable of reducing the size of equipment by saving space and shortening the cycle time by reducing the indexing time of tools. I do.

[0010]

According to the first aspect of the present invention,
Select a tool to be used from a plurality of tools provided on a rotatable rotary turret, and in a numerically controlled lathe having a rotary turret for processing a workpiece by the selected tool,
It is characterized in that the plurality of tools are provided so as to be perpendicular to the rotation plane within the rotation plane of the rotary tool rest.

According to the present invention, a plurality of tools selected when processing a workpiece provided on the rotary tool rest are set to be perpendicular to the rotary face of the rotary tool rest in the rotation plane. As a result, the area for disposing a plurality of tools for processing a workpiece can be contained within the range of the rotating surface of the rotary tool rest, and the equipment can be reduced in size by saving space in the peripheral area of the rotary tool rest. . In addition, the above-described arrangement of the tools reduces the indexing time when machining the workpiece with these tools,
Cycle time can be shortened.

According to a second aspect of the present invention, there is provided a numerical control lathe having the rotary tool rest according to the first aspect, further comprising supporting means for rotatably supporting the rotary tool rest. .

According to the present invention, in addition to the function of the first aspect of the present invention, the apparatus further comprises a supporting means for rotatably supporting the rotary tool rest, so that a plurality of processing means for processing the workpiece can be provided. The indexing of the tool can be executed promptly by the rotation of the rotary tool rest.

According to a third aspect of the present invention, there is provided a numerical control lathe having the rotary tool post according to the first aspect, wherein the rotary tool post is rotatably supported by the support means, and the rotary tool post is supported via the support means. Further, there is further provided a moving supporting means for supporting the moving member in a direction of its rotation axis and a direction perpendicular to the rotation axis.

According to this invention, in addition to the function of the invention described in claim 2, a movement for supporting the rotary tool rest via the support means so as to be movable in the direction of its rotation axis and in the direction perpendicular to the rotation axis. Since the supporting means is further provided, the operating position of the tool can be displaced by operating the moving supporting means, so that it is possible to flexibly cope with the processing form of the workpiece.

[0016]

Embodiments of the present invention will be described below in detail.

(Embodiment 1) First, Embodiment 1 of the present invention will be described.

The rotary tool rest 11 of the numerically controlled lathe according to the first embodiment has a disk shape as shown in FIGS. 1 and 2, and a hole through which the air spindle 16 passes is formed on a rotating surface of the rotary tool rest 11. Open vertically to the air spindle 1
6 is mounted perpendicular to the rotating surface of the rotary tool rest 11, that is, parallel to the rotation axis of the rotary tool rest 11.

A motor 12 is connected to the rotary tool rest 11, and the rotation of the motor 12 causes the rotary tool rest 11 to rotate, whereby the air spindle 16 is indexed.

As shown in FIG. 2, the rotary tool rest 11 is supported by a pair of fixed plates 13 as support means so that the central axis does not shift.

These fixed plates 13 are fixed to a Y-axis slide 21 constituting a moving support means. The fixed plate 13 has a guide 14 which fits in an annular groove 15 provided on the disk of the rotary tool rest 11 and slides when the rotary tool rest 11 rotates. It is designed to rotate.

A Y-axis servo motor (not shown) is connected to the Y-axis slide 21 to which the fixing plate 13 is fixed, and the guide rail 22 is moved vertically (Y-axis direction) via ball screws and ball nuts (not shown). It slides on top.

The guide rail 22 is further fixed to an X-axis slide 23 which constitutes a moving support means, and an X-axis servo motor (not shown) is connected to the X-axis slide 23. X through
It slides on the shaft guide rail 24 in the left-right direction (X-axis direction) perpendicular to the Y-axis.

Next, the operation of the first embodiment will be described.

First, a rod-shaped material W, which is a workpiece, is supplied through the guide bush 2 of the spindle 1 in a state parallel to the Z-axis direction, and stops at the processing position.

Next, in order to index the air spindle 16 used for machining, the tool 12 (see FIG. 1) is moved to the machining position by the motor 12 interlocked with the rotary tool rest 11 and stopped, and then fixed. I do.

The tool 100 is provided with a plurality of tools having different shapes, outer diameters, and the like at the tips, and is selectively used. Next, the air of the air spindle 16 is supplied via the air hose 17, and the air spindle 16 rotates.

The processing of the material W is performed by using the material W and the rotary tool post 11.
By moving the air spindle 16.
The material W is fed to the X-axis and Y-axis
It moves in the front-back direction (Z-axis direction) perpendicular to the axis.

The rotary tool rest 11 slides the Y-axis slide 21 to which it is fixed in a vertical direction (Y-axis direction) by a Y-axis servomotor (not shown) through a ball nut and a ball screw (not shown). Move in the direction.

X to which the guide rail 22 is fixed
The shaft slide 23 is moved in the X-axis direction by sliding in the left-right direction (X-axis direction) via a ball screw and a ball nut (not shown) by an X-axis servomotor (not shown).

The tool 100 is brought into contact with the material W by sliding these three axes sequentially or simultaneously to perform machining.

As described above, in the first embodiment, the rotary tool rest 11 is attached so that the rotating surface is parallel to the material W, and the tool 100 is perpendicular to the rotating face of the rotary tool rest 11. By mounting, the tool post space in the numerical control lathe is reduced, and the equipment can be reduced in size and weight.

Also, by reducing the size of the rotary tool rest 11, the sliding range in the X-axis and Y-axis directions can be expanded.
Processing of the material W having a more complicated shape becomes possible.

The air spindle 1 of the rotary tool rest 11
By reducing the spacing between the mounting holes 6 in advance according to the tool shape, more tools 100 can be mounted, and the number of setups can be reduced.

Further, by reducing the interval between the tools 100, the indexing time can be shortened and the cycle time can be shortened.

(Embodiment 2) FIGS. 3 to 5 show Embodiment 2 of the present invention. FIG. 3 is a plan view of a rotary tool rest 11 of Embodiment 2 and FIG. FIG. 5 is a front view of the rotary tool post 11 according to the second embodiment, and FIG. 5 is a rear view of the rotary tool post 11 according to the second embodiment.

In the rotary tool rest 11 of the numerically controlled lathe according to the second embodiment, eight holes through which the drill head 25 passes are formed in the rotating face of the rotary tool rest 11 in a direction perpendicular to the rotating face. The drill head 25 can be mounted perpendicular to the rotating surface of the rotary tool rest 11.

A motor 12 is connected to the rotary tool rest 11. The rotation of the motor 12 causes the rotary tool rest 11 to rotate, and the drill head 25 is indexed.

Incidentally, a plurality of drills 200 having different outer diameters and the like as tools are attached to the drill head 25, and are selectively used.

The rotary tool rest 11 is supported by a pair of fixed plates 13, which are fixed to a Y-axis slide 21. The fixed plate 13 has a guide 14.
And is fitted in the groove 15 on the disk of the rotary tool rest 11, and slides and rotates when the rotary tool rest 11 rotates.

A Y-axis servo motor (not shown) is connected to the Y-axis slide 21 to which the fixing plate 13 is fixed, and a guide rail is provided in the vertical direction (Y-axis direction) via a ball screw and a ball nut (not shown). Slides on the top 22. The guide rail 22 is further fixed to an X-axis slide 23, and an X-axis servo motor (not shown) is connected to the X-axis slide 23. Sliding left and right (X axis direction)

Next, the operation of the second embodiment will be described.

First, the material W is supplied through the guide bush 2 of the main shaft 1 and stops at the processing position. When simultaneous machining is performed on the sub spindle 31, the sub spindle 3
The workpiece is chucked at 1 and stopped at the processing position.

Next, in order to index the drill head 25 used for machining, the tool to be used is moved to the machining position by the motor 12 interlocked with the rotary tool rest 11, stopped and fixed.

Next, using the tool indexing motor 12, the gear 27 attached to the motor 12 is slid to the position of the drill head rotating gear 26 and engaged therewith, and the torque is transmitted to the drill head 25. And rotate.

Processing is performed by relatively moving the material W and the drill head 25 of the rotary tool rest 11.

The material W is moved by a Z-axis servo motor (not shown) in the front-rear direction (Z-axis direction) perpendicular to the X-axis and the Y-axis.

The rotary tool rest 11 slides the Y-axis slide 21 to which it is fixed in the vertical direction (Y-axis direction) via a ball nut and a ball screw (not shown) by a Y-axis servomotor (not shown). Move in the direction.

Further, X to which the guide rail 22 is fixed
The shaft slide 23 is moved in the X-axis direction by sliding in the left-right direction (X-axis direction) via a ball screw and a ball nut (not shown) by an X-axis servomotor (not shown).

The drill 200 and the material W are brought into contact with each other by sliding these three axes sequentially or simultaneously to perform the processing.

As described above, in the second embodiment, the rotary tool rest 11 is mounted so that the rotating surface is parallel to the material W, and the drill 200 is perpendicular to the rotating face of the rotary tool rest 11. By mounting, the tool post space in the numerical control lathe is reduced, and the equipment can be reduced in size and weight.

Also, by reducing the size of the rotary tool rest 11, the sliding range in the X-axis and Y-axis directions can be expanded.
Processing of the material W having a more complicated shape becomes possible.

The drill head 25 of the rotary tool rest 11
By preliminarily reducing the interval between the mounting holes according to the shape, more drills 200 can be mounted, and the number of setups can be reduced.

Further, by reducing the interval between the drills 200, the indexing time can be shortened, and the cycle time can be shortened.

According to the present invention described above, the following configuration can be added. (1) In a numerically controlled lathe having a rotating tool rest, a plurality of tools necessary for machining are provided in a rotating face of the rotating tool rest and each tool is perpendicular to the rotating face. Numerically controlled lathe with rotating tool post.

According to this configuration, a plurality of tools selected when machining the workpiece provided on the rotary tool rest are set to be perpendicular to the rotary face of the rotary tool rest in the rotary plane. As a result, the area for disposing a plurality of tools for processing a workpiece can be contained within the range of the rotating surface of the rotary tool rest, and the equipment can be reduced in size by saving space in the peripheral area of the rotary tool rest. . In addition, the above-described arrangement of the tools reduces the indexing time when machining the workpiece with these tools,
Cycle time can be shortened.

(2) A numerical control lathe having a rotary tool rest for selecting a tool to be used from a plurality of tools provided on a rotatable rotary tool rest and processing a workpiece by the selected tool. A numerically controlled lathe having a rotary tool rest, wherein the tool is provided in a rotating plane of the rotary tool rest and parallel to a rotation axis of the rotary tool rest.

According to this configuration, similarly to the case of the appendix (1), it is possible to reduce the size of the equipment by saving space in the peripheral area of the rotary tool rest, and to perform indexing when machining the workpiece with the tool. Time can be reduced and cycle time can be reduced.

(3) A numerically controlled lathe having a rotary tool rest as described in appendix (2), wherein the rotary tool rest is movable in a direction of its rotation axis and in a direction perpendicular to the rotation axis. According to this configuration, the processing position by the tool can be displaced, and it is possible to flexibly respond to the processing mode of the workpiece.

(4) A numerically controlled lathe having a rotary tool rest as described in appendix (2) or (3), further comprising supporting means for supporting an outer peripheral portion of the rotatable rotary tool rest. According to this configuration, indexing of a plurality of tools at the time of processing a workpiece can be accurately performed.

(5) The numerically controlled lathe having a rotary tool rest as described in any one of appendices (2) to (4), wherein the plurality of tools have different shapes and outer diameters of tip portions. According to this configuration, various processing shapes can be realized for the workpiece.

[0062]

According to the first aspect of the present invention, the size of the equipment can be reduced by saving space in the peripheral area of the rotary tool post.
Further, it is possible to provide a numerically controlled lathe having a rotary tool rest capable of reducing an indexing time in processing a workpiece and shortening a cycle time.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the invention, in addition to the effects of the first aspect of the invention, a rotary cutter capable of promptly executing indexing of a plurality of tools when processing a workpiece by rotating the rotary tool rest. A numerically controlled lathe having a table can be provided.

According to the third aspect of the invention, in addition to the effect of the second aspect, the processing position by the tool can be displaced, and it is possible to flexibly cope with the processing form of the workpiece. It is possible to provide a numerically controlled lathe having a suitable rotary tool rest.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a numerically controlled lathe having a rotary tool rest according to Embodiment 1 of the present invention.

FIG. 2 is a schematic rear view of the numerically controlled lathe having the rotary tool rest according to the first embodiment of the present invention.

FIG. 3 is a schematic plan view of a numerically controlled lathe having a rotary tool rest according to a second embodiment of the present invention.

FIG. 4 is a schematic front view of a numerically controlled lathe having a rotary tool rest according to a second embodiment of the present invention.

FIG. 5 is a schematic rear view of a numerically controlled lathe having a rotary tool rest according to a second embodiment of the present invention.

FIG. 6 is a right side view of a conventional rotary tool rest.

FIG. 7 is a plan view of a conventional rotary tool rest.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main shaft 2 Guide bush 11 Rotary turret 12 Motor 13 Fixing plate 14 Guide 15 Groove 16 Air spindle 17 Air hose 21 Y-axis slide 22 Guide rail 23 X-axis slide 24 X-axis guide rail 25 Drill head 26 Gear 27 Gear 27 Sub-spindle 100 Tool W Material

Claims (3)

[Claims] 1. A numerically controlled lathe having a rotary tool rest for selecting a tool to be used from a plurality of tools provided on a rotatable rotary tool rest and processing a workpiece with the selected tool, A numerically controlled lathe having a rotary tool rest, wherein a tool is provided so as to be perpendicular to the rotary face of the rotary tool rest. 2. The numerically controlled lathe having a rotary tool post according to claim 1, further comprising a support means for rotatably supporting the rotary tool post. 3. A support means for rotatably supporting the rotary tool rest, and a moving support for supporting the rotary tool rest via the support means so as to be movable in the direction of its rotation axis and in the direction perpendicular to the rotation axis. The numerically controlled lathe having a rotary tool post according to claim 1, further comprising means.