JPH06743A - Tool indexing device - Google Patents

Abstract

PURPOSE:To suppress the generation of noise when a rotary tool is rotated at a high speed and to eliminate a man power required for registration of the phase of the rotary tool, in a tool indexing device wherein a turret and the rotary tool are driven with the aid of a common motor. CONSTITUTION:A rotary tool drive shaft 5 rotatably supported to a turret 2 is coupled to a rotary tool 10 through a bevel gear 8 and a rotary shaft 9. A drive motor 12 which drives the turret 2 and the rotary tool drive shaft 5 in common is provided. Rotation of the motor shaft 14 is intermittently transmitted to the turret 2 through the electromagnetic clutch 15 of a turret drive mechanism 13, a transmission shaft 16, an intermediate shaft 19, and a belt 23, Further, rotation of the motor shaft 14 is steadily transmitted to the rotary tool drive shaft 5 through the belt 27 of a tool drive mechanism 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a tool indexing device, and more particularly to
The present invention relates to a tool indexing device that drives a turret and a rotary tool with a common motor.

[0002]

2. Description of the Related Art Conventionally, as a tool indexing device of this type, the technique disclosed in, for example, Japanese Patent Publication No. 58-33043 shown in FIG. 2 and Japanese Patent Publication No. 2-60444 shown in FIGS. It has been known. In these conventional devices, the rotation of the drive motor 30 is transmitted to the turret drive mechanism 32 and the tool drive mechanism 33 via the gear 31. A gear shift 3 is provided between the drive motor 30 and the tool drive mechanism 33.
4 and the clutch 35 are interposed, whereby the tool driving mechanism 33 is intermittently driven.

[0003]

However, according to the tool driving mechanism using the gear, a gear meshing noise is generated, and particularly when a rotating tool is rotated at a high speed, a large noise is generated, so that the working environment is reduced. There was a problem of being damaged. Further, since the connection between the drive motor and the tool drive mechanism is interrupted, there is a problem that it takes time to align the phase of the rotary tool when tapping or the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tool indexing device which can suppress noise and save time and effort for phase alignment of rotary tools.

[0005]

In order to solve the above-mentioned problems, a tool indexing device of the present invention comprises a rotatable turret, a rotary tool drive shaft rotatably supported on the turret, a turret and a turret. A drive motor that commonly drives the rotary tool drive shaft, a turret drive mechanism that includes a clutch that intermittently transmits the rotation of the drive motor to the turret, and a belt that constantly transmits the rotation of the drive motor to the rotary tool drive shaft. And a tool driving mechanism including.

[0006]

According to the tool indexing device of the present invention, since the rotation of the drive motor is transmitted to the rotary tool drive shaft via the belt, noise generated when the rotary tool is rotated at a high speed is suppressed. Further, since the rotary tool drive shaft is constantly driven by the belt, the time and effort for phase alignment of the rotary tool are also omitted.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a turret 2 is rotatably supported by a shaft portion 3 on a fixed portion 1 of a tool rest via a bearing 4. A rotary tool drive shaft 5 is rotatably supported on the turning axis of the turret 2 via a sleeve 6 and a bearing 7. The rotary tool drive shaft 5 is connected to a plurality of rotary shafts 9 via a bevel gear 8, and a rotary tool 10 is attached to the outer end of each rotary shaft 9. 1
Reference numeral 1 is a hydraulic clamper for clamping the turret 2 at the indexing position, and 12 is a drive motor for commonly driving the turret 2 and the rotary tool drive shaft 5.

Reference numeral 13 denotes an entire turret drive mechanism, which has an electromagnetic clutch 15 mounted on a motor shaft 14 of a drive motor 12. A transmission shaft 16 is supported on the fixed portion 1 coaxially with the motor shaft 14, an armature 17 attracted to the electromagnetic clutch 15 is slidably attached to one end thereof, and a gear 18 is provided to the other end. Has been. An intermediate shaft 19 is supported on the fixed portion 1 in parallel with the transmission shaft 16, and a reduction gear 20 meshing with the gear 18 and a drive pulley 21 are provided on the intermediate shaft 19. A driven pulley 22 is fitted on the tip of the shaft portion 3 of the turret 2, and a belt 23 is attached to the driven pulley 22 and the drive pulley 21.
Is wrapped around. And the turret drive mechanism 1
3 is configured to intermittently transmit the rotation of the drive motor 12 to the turret 2 via the electromagnetic clutch 15.

Reference numeral 24 denotes an entire tool driving mechanism, and the mechanism 24 includes a driving pulley 25 inserted into the motor shaft 14. A driven pulley 26 is fitted on the projecting end of the rotary tool drive shaft 5, and a belt 27 is wound around the driven pulley 26 and the drive pulley 25. The tool drive mechanism 24 is configured to constantly transmit the rotation of the drive motor 12 to the rotary tool drive shaft 5 via the belt 27.

Next, the operation of the indexing device constructed as described above will be described. When the drive motor 12 is started,
The rotation of the motor shaft 14 is transmitted to the rotary tool drive shaft 5 via the belt 27 of the tool drive mechanism 24, the rotary tool 10 is rotated via the bevel gear 8 and the rotary shaft 9, and machining is performed by the rotary tool 10. . In this case, since the rotation of the motor shaft 14 is transmitted to the rotary tool drive shaft 5 via the belt 27, even when the rotary tool 10 is rotated at a high speed and processed, unlike the conventional gear, a large noise is generated. Can be maintained and the work environment can be maintained in good condition.

When the rotary tool 10 is indexed to another machining position, the electromagnetic clutch 15 of the turret drive mechanism 13 is excited while the drive motor 12 is rotating, the armature 17 is attracted to this, and the motor shaft 14 of the motor shaft 14 is attracted. Rotation is transmission shaft 1
The turret 2 is rotated by being transmitted to the shaft portion 3 through the intermediate shaft 6, the intermediate shaft 19, and the belt 23. When the rotary tool 10 is indexed to a predetermined processing position, the electromagnetic clutch 15 is demagnetized, the armature 17 is released by the action of a leaf spring (not shown) provided on the electromagnetic clutch 15, and the turret 2 is disengaged from the drive motor 12. The hydraulic clamper 11 clamps the indexing position. Since the rotary tool drive shaft 5 is constantly driven by the belt 27 during this indexing period, it is possible to save the time and effort of phase alignment of the rotary tool 10 when the machining is restarted after indexing. Further, according to the apparatus of this embodiment,
Since the turret drive mechanism 13 also includes the belt 23,
It is possible to reduce the noise caused by the turning of the turret 2 as compared with the conventional case.

The present invention is not limited to the above-mentioned embodiments, and the shapes and configurations of the respective parts can be appropriately modified and embodied without departing from the spirit of the present invention.

[0013]

As described above in detail, according to the present invention, the rotation of the drive motor is intermittently transmitted to the turret via the clutch, and is steadily transmitted to the tool drive shaft via the belt. With this configuration, it is possible to suppress noise when the rotary tool is rotated at a high speed, and it is possible to eliminate the trouble of phase alignment of the rotary tool.

[Brief description of drawings]

FIG. 1 is a sectional view of a tool indexing device showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view including a partial cross section of a conventional tool indexing device.

FIG. 3 is an explanatory view showing a switching gear train of a drive mechanism of a conventional lathe.

FIG. 4 is an explanatory view showing a conventional tool indexing device connected to the drive mechanism of FIG.

[Explanation of symbols]

1 ... Fixed part, 2 ... Turret, 3 ... Shaft part, 4, 7 ...
・ Bearing 5 ・ ・ Rotary tool drive shaft, 6 ・ ・ Sleeve, 8 ・ ・ Bevel gear, 9 ・ ・ Rotary shaft, 10 ・ ・ Rotary tool, 11 ・ ・ Hydraulic clamper, 12 ・ ・ Drive motor, 13
..Turret drive mechanism, 14 ... Motor shaft, 15 ... Electromagnetic clutch, 16 ... Transmission shaft, 17 ... Armature,
18 ... Gear, 19 ... Intermediate shaft, 20 ... Reduction gear, 2
1, 25 ··· Driving pulley, 22, 26 · · Driven pulley,
23, 27 ... Belt, 24 ... Tool drive mechanism, 30 ...
・ Drive motors, 31 ・ ・ Gear, 32 ・ ・ Turret drive mechanism, 33 ・ ・ Tool drive mechanism, 34 ・ ・ Gear shift, 35
··clutch.

Claims (1)

[Claims] 1. A rotatable turret, a rotary tool drive shaft rotatably supported on the turret, and a drive motor for commonly driving the turret and the rotary tool drive shaft.
A turret drive mechanism including a clutch that intermittently transmits the rotation of the drive motor to a turret, and a tool drive mechanism including a belt that steadily transmits the rotation of the drive motor to a rotary tool drive shaft. Tool indexing device.