JPS58186553A - Combined machine tool - Google Patents

Abstract

PURPOSE:To improve productivity very much, by securing head-stocks on an annular table to rotatively index the headstocks to machining stations sequentially and by selecting a tool post to machine a work-piece. CONSTITUTION:An annular table 4 is indexed by a motor 9 in a bed 1 as the motor is regulated by a centralized control unit. Headstocks 10 are radially secured in eight equiangular positions on the annular table 4 so that chucks 11 are oriented outwards. When the table 4 is to be turned, the headstocks 10 are disconnected by clutches 14. Minor beds 17 are radially secured outside the bed 1 correspondingly to the indexed positions of the headstocks 10. Tool posts 22 are provided on carriages on saddles 19 on the minor beds 17 so that turrets 22b for rotary tools can be quickly attached and detached to and from the tool posts. The turrets 22b are used in an optional combination for machining.

Description

[Detailed Description of the Invention] The present invention is a lathe! This invention relates to a compound machine tool that has a thinning center function and can flexibly handle many types of machining.

Conventionally, in the rotary type dedicated machines used in mass production factories, the workpiece is fixed, and the main operations are milling, boring, drilling, and tapping, and there is no turning. It was impossible.

For this reason, lathe processing was required as a separate process. In addition, although lathe-based multifunction machines are capable of turning, it is necessary to install multiple machines in order to process workpieces with a relatively large number of machining lofts, which is a problem because the machine space and floor space become large. Ta.

Therefore, the present invention has been made to solve the above-mentioned problems, and aims to provide a multi-purpose machine tool that can flexibly respond to the machining contents of workpieces and has a wide range of functions suitable for mass production. The present invention involves arranging the spindle drive parts of a plurality of various lathe-shaped machine tools at equal radial positions on the same circumference around a central zone, separating the headstock from the machine body, turning, and processing stations at the equally divided positions. , placed in the headstock zone on a ring-shaped table that can be indexed at the workpiece change station.In each station, connection means between the headstock, spindle drive section, and signal system section are provided, and a unitized tool rest and robot device are installed. etc. are selectively provided at positions corresponding to the respective stations in the outer tool post zone in accordance with the workpiece.

Embodiments of the present invention will be described below based on the drawings.

At the center of a circular or polygonal bed 1, for example, an octagonal bed 1 in this example, a circular gear platform 6 on which transmission gear boxes 2 of the same shape are placed at radial 8 equal positions is mounted and fixed concentrically. The gear carriage 3 has a structure in which an annular chiripple 4 can be rotated at eight equal positions on the bed 1 on the outside, and the angle and height can be accurately determined at each index position. An internal gear 6 is attached to the inner lower end of the annular table 4, and a drive shaft 8 having a pinion 7a that meshes with the internal gear 6 is vertically supported on the bed 1.

A gear 7c that meshes with a gear 7b at the lower end of the drive shaft 8 is fixed to the output shaft, and a motor 9 provided on the bed 1 controls the rotation indexing and positioning of the annular table 4 by means of a central control device 27. On the annular table 4 is a headstock 10 of the same shape.
are fixed radially in eight equally divided positions corresponding to the gear box positions, with the chuck 11 facing outward. In each indexed headstock 10, the output shaft of the transmission gear box 2, which transmits the rotation from the motor 16 provided on the bed 1, and the rear end of the drive shaft of the main shaft 12 are connected by a clutch 14, and the table 4 is rotated. It is separated when the

In addition, signal lines such as pulses of the rotation speed or rotation angle of the main shaft 12, small power lines, pressure air, oil supply pipes, etc. necessary for indexing rotation of the main shaft 12 are connected at the indexing position, and are disconnected when turning. It has a built-in small power, signal line, pressurized air source, etc. necessary for the gear carriage 3 or the bed 1. If the chuck 11 is opened and closed by manually turning a handle, the chuck 11 is opened and closed by an automatic attachment/detachment device 16 provided on the side of the bed 1 at the positioning position. If it is a power chuck that uses pneumatic or hydraulic pressure, it will be connected to a pressure source built into the bed 1 when the headstock 10 is indexed.

Small beds 17 are fixed radially to the outside of the bed 1 corresponding to the indexed positions of each headstock 10, and on some of the small beds 17 are the indexed headstock 1 (1) axes! ! C
A saddle 19 whose positioning is controlled by a servo motor 18 in the (Z-axis) direction is mounted, and on the top surface of this saddle 19 is placed a transverse feed table 2 whose positioning is controlled by a servo motor 2° in the direction perpendicular to the main axis (X-axis).
1 is placed on top of which a tool rest unit 22 is provided.

This tool post unit 22 includes a turret 22 equipped with well-known tools for inner and outer diameters, drills, and reamers.

A rotary tool turret 22b on which a tap, a milling cutter, a front 7 rice kafter table, etc. are mounted can be quickly attached and detached as the cutter 1 and unit 22, and can be selectively combined and used according to the work.

The rotary tool turret 22b includes one configured to control the position in the vertical (Y-axis) direction.

This turret unit 22 is loaded on a special trolley.

Transferring is easy. In addition to the tool rest unit 22, a shin rest 26 may be provided at a position that coincides with the main fine lines so as to be able to handle short axis machining.

Furthermore, instead of the tool rest unit 22, a known robot device 2 is used.
A loading unit and a reversing unit consisting of four units are optionally installed corresponding to the workpiece.

The robot device 124 communicates with the loading and unloading chutes 25 and 62, and this position is defined as the loading/unloading position of the workpiece. The unloader positions can be provided at 1, 2, and 4 locations as shown in Figure 4 for 8 stations, and 1, 2, and 3 locations as shown in Figure 5 for 6 stations, and can also be provided at any location. It is. An annular structure 26 for cutting waste and coolant liquid is formed on the outside of the annular table 4 so that the cutting waste and coolant liquid are automatically collected in one place. In addition, a central control device 27 required for the compound machine tool is connected to each machine to issue necessary commands and control the machining sequence. Also, a supply device 28 for coolant. A hydraulic pressure supply device 29 is provided separately. If necessary, a well-known manipulator/loader or reversing device may be used. Note that the turret unit 22. In addition, each robot device 24 is attached with its own operation panel 60, 61, so that it can be used independently.

Next, the present invention will be explained in detail. We process two types of metalwork: 7-lunge items and short-axis items. The annular table 4 is rotated counterclockwise to the first station and tIN, respectively.
It starts from the 5th station.

The first station I of the eight stations is equipped with a robot 24 for transporting seven lunge objects and an axial layer manipulator type loader (not shown), and the second station I is equipped with a cutting tool post unit 22 having a turret 22a for outer diameter and direction machining. , the third station Otori is equipped with a robot F or a manipulator type loader (not shown) for reversal, and a cutting tool post unit 22 having a turret 22a for machining the unmachined outer diameter and the back surface is mounted on the end surface at the fourth station (3). Rotating TAj with 22b (turret for screw pilot hole and tapping)
lAJ table unit 22, is5 station V is 7
A robot 24 for carrying out a lunge workpiece and an axial layer manipulator type loader (not shown) are installed at the sixth station (■), a cutting tool rest unit 22 having a turret (22a) for outer diameter machining, and a shinjindai (23f):, a seventh station (■) 22a' is a reversing device (not shown) for reversing processing.
ft cutting tool post unit) 22 and psychological table 26,
The 8th station is a turret for screw machining) 22
The control device 27 is equipped with a cutting tool post unit 22 and a psychological table 23 having a cutting tool turret unit 22 and a psychological table 23, and controls the processing time rtl! +l Configure so that there is no idle time.

Here, we will explain the processing order for each workpiece.

First, at station I, when the 7-lunge workpiece W1 is sent to the loading/unloading chute 25, it is transferred to the robot device! 24 grips the workpiece W1 from the standby position, and the headstock 10 of station l
The chuck 11 is used to hold it.

On the other hand, in the station machine V, when the shaft workpiece W2 is sent to the loading chute 62, it is gripped by the chuck 11 of the headstock 10 of the station machine by a loading device (not shown). Disconnect the connecting devices 1115 such as clutches 14 and 111 of each headstock to stations V and Yl.

The mind axis of each psychological table 26 of Toki and Vai is retreated.

After a predetermined time, the annular table 4 is unclamped and the motor 2
is rotated, positioned one turn and fixed.

Each of the stations V, L II, and Vil (currently the chisel) -c grips the workpiece F2 with the psychological table 26 and the chuck, and each chuck accurately grips it again, and the clutch 14 of each headstock 10. Connect the connecting device 15.

Next, at station (2), the outer diameter and end face are cut. On the other hand, with Stegeon ■, the outer diameter is cut.

After a predetermined period of time after the end of cutting, each tailstock is moved back, and the clutch 14 and connection device 15 of each headstock are disconnected. Then, the annular table 4 is fixed in i-swivel position in the same manner. Each center spindle moves forward and grips the workpiece W2'ft, and the clutch 14° connection device 15 of each headstock 10 is connected.

Next, at the station Otori, the workpiece W1 is reversed by a reversing device it (not shown), and the chuck 11 grips the machined outer diameter and separates the outer diameter and back surface! Process the surface.

On the other hand, in the steel machine (2), the workpiece W2 is reversed and grasped again using a reversing device (not shown), and the unprocessed portion is processed.
After a predetermined period of time after the end of cutting, the Shinshin axis retreats, and each headstock 1
0 clutch 14 and connection device 15 are disconnected. fR
The shaped table 4 is likewise fixed in its open pivot position. Each spindle moves forward and grips the workpiece W2, and each headstock 10 connects the clutch 14 and the connecting device [15].

Next, at station (2), the main shaft 12 of the headstock 10 is indexed, the drill of the rotary tool turret 22b drills a hole, and then a tap is used to tap a screw.

The main spindles are sequentially indexed and drilling and tapping and machining of a predetermined number of pieces are performed in the same manner. On the other hand, in the case of steel-geon V shoes, thread cutting is performed, and after a predetermined period of time after cutting is completed, each shaft is retracted and the clutch 14 connection device 15 of the headstock 10 is disconnected. The annular table 4 makes one turn, makes a half turn, and is similarly positioned and fixed. Station ■, ■, Vl
The center shaft of the motor moves forward, and the clutch 14 and the connecting device 15 are connected. At station I, a loader (not shown) grips the shaft workpiece W2 and transports it to the transport chute 25. On the other hand, in the steel section V, the robot 1124 grasps the seven-lung workpiece W1 and carries it out to the chute 62, thereby completing one machining process. In this way, the processing of one workpiece is completed, but each time the annular table 4 rotates one step, the stations I and V carry out the processed workpiece and grip the unprocessed workpiece. Carrying in and out is carried out sequentially and continuously, and processing is continued one step at a time at intermediate stations.

As described in detail above, the present invention arranges the spindle drive parts of a compound lathe in a radial manner centered on the center, and separates the headstock portion and fixes it to an annular table so that it can be sequentially rotated and indexed to a machining station. None, the tool rest is unitized and the tool rest unit can be selected according to the machining of the workpiece, so turning, machining center machining and various types of machining with a wide range of widths can be performed. In addition, since the tool post unit F is of a quick-change type and can be easily replaced in a short time, it is possible to select the tool post unit that is suitable for machining the workpiece and create an optimal machine configuration. Also, general compound lathe t-
It saves space and reduces loading time compared to installing multiple units. In addition, 11 or multiple loading and unloading locations can be selected depending on the workpiece, making effective use of the machine base, creating an efficient loading system, and possessing numerous features that can significantly improve productivity.

[Brief explanation of drawings]

FIG. 1 is a plan layout diagram of the machine base of the present invention. FIG. 2 is an A-A &! of FIG. 1. Figure 6 is an explanatory diagram of the arrangement of the turret of B-BIIj in Figure 1.
Figure 5 is a T diagram showing the loading and unloading station positions 01...Bed 2...
・Transmission gear box 4... Annular table 10... Headstock 14... Clutch 15... Connection device 22...
・Turret unit 24... Robot device patent applicant Okuma Iron Works Co., Ltd. Figure 2 Figure 4

Claims (1)

[Claims] (1) A spindle drive zone in which a plurality of sets of spindle drive units and signal system units, etc. are provided radially at equal positions on the same circumference in the center, and an annular table is rotated outside the zone and The processing station or the workpiece changing station is provided so as to be indexable and positionable, and the headstock is arranged so as to be rotatably positioned on the table in a radial direction, corresponding to the position of the drive unit and the signal system unit. A plurality of headstock zones are provided, and at least a turret guide member, a turret unit, a turret drive member, a p-bot device, etc. [selectively Furthermore, when the annular table is located in front of each stage, the headstock is connected to the spindle drive section, signal system section, small power system section, pressurized air, oil supply pipe, etc. A compound machine tool characterized in that it is equipped with connection means for connecting each stage, and each stage is equipped with the necessary functions.