JPH08206942A - Work device - Google Patents

Abstract

PURPOSE: To constitute a small and inexpensive device to perform various precise machine works on a comparatively small part. CONSTITUTION: Chuck holes 1a in two rows are formed in its circumferential direction on a rotary table 1, and a megatorque motor 2 is rotatably pivoted by placing this rotary table 1. An annular ring disk 1b is fixed to a circumferential part lower surface of the rotary table 1, and the megatorque motor 2 is placed on a stand 2a. A pneumatic caliper 3 is supported by a bracket 3a, and dampers 3d and 3e are arranged on its arms 3b and 3c, and braking is applied when the rotary table 1 is positioned. Various machine work machines are arranged in a prescribed position of its external part along the outer periphery of the rotary table 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a processing apparatus suitable for machining a plurality of types of relatively small parts using a rotary table.

[0002]

2. Description of the Related Art A conventional machine for performing a plurality of types of machining is a transfer machine. As is well known, a plurality of different machines are arranged linearly, and parts to be machined are processed by a conveyor. The processing machines are sequentially transferred to each machine and each processing machine is controlled by a relatively large computer.

[0003]

However, the conventional processing apparatus of this kind is for processing a relatively large work piece, has a large overall structure, and is not suitable as a precision processing method for small parts. It was

An object of the present invention is to provide an inexpensive processing apparatus suitable for performing a plurality of types of precision machining on small parts and having a relatively small overall structure.

[0005]

In order to achieve the above object, the processing apparatus of the present invention is rotatably supported so that a predetermined number of chuck holes are formed in a plurality of rows along the circumferential direction. A rotary table, a detachable machining table attached to the chuck hole at a desired position, a plurality of machining machines provided at predetermined positions outside the rotary table along the outer periphery of the rotary table, and on the rotary table The gist of the present invention is to provide a rotary positioning means for rotating and positioning the workpiece mounted on the desired processing table to the processing position of the desired processing machine.

In the processing apparatus of the present invention, each of the plurality of processing machines may be provided with a numerical control means.

The rotary positioning means may include a megatorque motor and a caliper for holding the rotary table by braking at the processing position.

[0008]

In the apparatus of the present invention, the workpiece is mounted on the working table and then mounted through the chuck hole of the rotary table, and the rotary table is rotated by the rotary positioning means to perform the desired machining. Position it at the machine position and process it.

[0009]

Embodiments of the present invention shown in the drawings will be described below.
1A and 1B show a rotary table 1, a megatorque motor 2 and a pneumatic caliper 3 in an embodiment of a processing apparatus of the present invention. As shown in the figure, the rotary table 1 has, for example, two rows of chuck holes 1a formed along the circumferential direction thereof, and the megatorque motor 2 is capable of mounting and rotating the rotary table 1. Is pivoted to.

An annular disk 1b is fixed to the lower surface of the circumferential portion of the rotary table 1 and the megatorque motor 2 is mounted on the base 2a. The pneumatic caliper 3 is supported by a bracket 3a, and its arms 3b,
3c is provided with brake shoes 3d and 3e,
The circumferential portions of the disc 1b are interposed between d and 3e.

FIG. 2 shows an example of the configuration of the control device for the megatorque motor 2. In the figure, the megatorque motor 2 is
For example, a direct drive motor that enables high-speed load drive without using a speed reducer is used, and the positioning controller 4 controls the rotational drive thereof.

That is, a high-resolution position detector 5 detects the rotational position of the megatorque motor 2 with high accuracy, and the positioning controller 4 inputs a position command signal and a position detection signal from the position detector 4. From that, a positioning signal is generated and given to the motor drive device 6. The motor drive device 6 drives the megatorque motor 2 based on this positioning signal to rotate the rotary table 1 to a desired position. Then, in order to enable more accurate positioning, the pneumatic caliper 3 is operated at the desired position to move the arm 3
The brake elements 3d and 3e of b and 3c hold the circumferential portion of the disk 1b and apply a brake to the rotary table 1.

Various machining machines are installed along the outer periphery of the rotary table 1 at predetermined positions outside the rotary table 1. For example, as shown in FIGS. 3 to 5, a horizontal hole tap / drill machine 7, a vertical hole tap / drill machine 8, a milling unit 9, an XY machining table 10 and the like are provided.

FIG. 6 is an electric system diagram of the horizontal hole tap / drill 7, where 7a is a controller for the feed axis, 7b is a spindle controller, and 7c is a programming console. The spindle controller 7b sets the machining origin of the drill portion 7d of the machining machine 7, and the feed axis controller 7a has, for example, the following 12 types of machining patterns, and various types of programs are set according to programs set by the programming console 7c. The feed shaft 7e of the processing machine 7 is controlled so that the processing pattern is selected and executed.

Processing pattern Pattern No. Applications 01 Drilling 02 High-speed drilling 03 Deep-hole drilling 04 Hollow-pipe drilling 05 Drilling → counterbore 06 Drilling (fine speed feed added) 07 High-speed deep drilling (fine speed feed added) 08 Deep hole drilling (fine speed feed added) 09 Hole drilling for hollow pipes etc. (Additional fine speed feed) 10 Drilling → Counterbore (Additional fine speed feed) 11 Back spot facing 12 Drilling multiple stages of hollow pipe (Additional fine speed feed)

FIG. 7 shows, for example, the pattern No. The machining operation of 06 is shown.

FIG. 8 shows the chuck hole 1 of the rotary table 1.
An example of the processing holder 11 screwed and fixed to a is shown. In the figure, 11a is a screw hole for mounting, and 11b is a mounting portion for a workpiece. When the rotary table 1 is positioned as described above, the component to be machined mounted on the machining holder 11 comes to the desired machining position of the machining machine. As a result, when the rotary table 1 makes one rotation, a plurality of types of processing are performed on the workpiece.

Next, a specific processing example by the processing apparatus of the present invention will be described. For example, on the turntable 1, A,
One to a plurality of processing holders 11 of different types B, ... D are arranged according to the production amount. Now, assuming that the workpiece A1 is clamped by the holder A and is sequentially automatically machined, the machining of the N workpieces A1 is completed, and then the workpiece B1 having different outer shapes, machining positions, machining contents, etc. When exchanging setups on the rotary table 1 except for exchanging blades necessary for changing the drill diameter, taps, etc.
If the stop position, the machining program of each of the machining machines 7 to 10 are stored in advance in the memory of each control device for the workpiece B1, it is only necessary to select the stored contents of the memory. Moreover, since each of the processing machines 7 to 10 can perform simultaneous processing, the efficiency is greatly improved. Since this type of conventional semi-automatic processing machine is a fixed type, in order to perform the above-mentioned setup change, it is very troublesome to rotate the index equally, replace the holder by changing the table work piece, and readjust the positioning. Variety,
It was inefficient and unsuitable for small to medium volume production. However, it is clear that the device of the present invention greatly improves such a point.

[0019]

As described above, according to the present invention, it is possible to mount one or a plurality of parts to be machined at arbitrary positions on the rotary table and perform plural kinds of machining according to the rotation of the rotary table. The overall configuration of the device can be made smaller,
Moreover, since each processing machine can be controlled individually, a large computer is not required.

[Brief description of drawings]

1A and 1B are a plan view and a front view showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of a control device for a megatorque motor.

FIG. 3 is a plan view showing an arrangement example of respective processing machines in the above embodiment.

FIG. 4 is a front view showing an arrangement example of milling units.

FIG. 5 is a front view showing an arrangement example of a horizontal hole tap drill and a vertical hole tap drill.

FIG. 6 is an electrical system diagram of a horizontal hole tap / drill.

FIG. 7 is an explanatory diagram showing an example of a side hole tap / drill processing pattern.

FIG. 8 is a diagram showing an example of a processing holder.

[Explanation of symbols]

 1 rotary table 1a chuck hole 2 megatorque motor 3 pneumatic calipers 3d, 3e brake element 5 position detector 6 motor drive device

Claims (3)

[Claims] 1. A rotatable rotary table having a predetermined number of chuck holes formed in a plurality of rows along the circumferential direction, and a detachable process attached to the chuck holes at a desired position. A table, a plurality of processing machines provided at a predetermined position outside the rotary table along the outer periphery of the rotary table, and a work piece attached to a desired processing table on the rotary table to a processing position of the desired processing machine. And a rotary positioning means for rotating and positioning. 2. The processing apparatus according to claim 1, wherein each of the plurality of processing machines is provided with a numerical control means. 3. The processing apparatus according to claim 1, wherein the rotation positioning means includes a megatorque motor and a caliper that holds the rotary table by braking at the processing position.