JPS60255338A - Head replacing apparatus in turret type machine tool - Google Patents

Abstract

PURPOSE:To reduce the dimension of the apparatus by permitting the head replacement between a supporting arm which shifts replacement position through indexing a magazine installed onto a body and a holder which shifts transversely to the replacement position, in the captioned machine tool equipped with a 3-axis rectangular-coordinate type transfer mechanism. CONSTITUTION:A turret head 7 installed onto a holder 5 is shifted transversely to a replacement position 24, after use, by a Y-axis driving source 11 and transferred to the clamping part 21a of a vacant supporting arm 21 in waiting, through the catching of the projection of the head 7 which is not shown in the figure. The holder 7 is a little retreated, and a head magazine 22 is transferred to the replacement position 24 by a driving source 23 through indexing a necessary turret head 7, and clamped onto the clamp of the head holder 5 which is not shown in the figure, and then an unclamping mechanism is operated to release the clamping of the supporting arm 21, and the head is transferred onto the holder 5. Then, the holder 5 is returned to the original position. With such constitution, the dimension of the apparatus can be reduced, and the labor for operator can be lightened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a turret head that is attached to a head holder that is supported on a machine tool main body and is equipped with a three-axis orthogonal coordinate movement mechanism, so that the main body can be moved. Komei relates to a head exchange device for a turret-type machine tool that processes workpieces.

As a conventional device of this kind, according to Japanese Patent Publication No. 52-6789, a head magazine for supporting a plurality of turret heads is arranged on one side of a machine tool, and the machine tool and the hemlock. It is known that a moving table 8 for transporting the turret head is provided between the machine tool and the magazine, but in this case, a moving table is provided between the machine tool and the magazine, which increases the size of the turret head exchange device. There is an inconvenience that a burden is placed on the operator because the moving table must be moved manually.

In order to eliminate such inconveniences, the present invention provides a head exchanger that utilizes the movement of the machine tool body that supports the head holder to enable head exchange without using a movable turret for conveying the turret head. Its purpose is to
A turret type in which the turret head is attached to a head holder supported by a machine tool body equipped with a 3-axis orthogonal coordinate movement mechanism, and the workpiece on the set table in front is machined by the operation of the body. In a machine tool, a turret head is removably attached to the lateral side of the head P holder, and a plurality of radial support arms are provided on the lateral side of the arrangement portion of the main body, each of which grips the turret head in a removable manner. A head magazine having a head magazine is arranged, and any one of these support arms can be freely selected to an exchange position facing within the lateral movement locus of the holder by means of an indexing mechanism provided in the magazine, and the head magazine is moved to the side in the lateral direction of the holder. The turret head is freely exchangeable between the holder and the NFC support arm, which is selected to the exchange position by the lateral movement of the NFC.

The present invention will be explained below with reference to illustrated embodiments.

Referring to FIGS. 1 and 2, (1) is the machine 4, (2) is the work set table provided at the front position on the machine 8 (1), (
3) shows a machine tool main body equipped with a 7'c three-axis orthogonal coordinate type moving mechanism installed at the rear position, and the main body (3) has an X axis and a horizontal direction in the direction of advancing and retreating toward the set table (2). direction to Y
The movable frame (4) is provided with a movable frame (4) that is movable in three axes of an orthogonal coordinate system, with the vertical and vertical directions as two axes.
A turret head (7) having a plurality of spindles (6) around the periphery is attached via a head holder (5). To explain this in more detail, the main body (3) of the illustrated machine includes a table (8) that is slidable in the Y-axis direction along a guide rail (8a) on the machine base (1). a column (9) that is slidable in the X-axis direction along a guide rail (9a) on the table (8), and the movable frame (4) has a guide rail (4a) on the column (9); The movable frame (4), the table (8), and the column (9) are each provided with a separate drive source consisting of a servo motor (00 (11) Q2). are connected via each guide screw (10a) (lla) (12a), and thus the movable frame (4) is moved in the Z-axis direction by the operation of the continuous Z-axis circumferential drive source 00. The table (8
) and the movement in the Y-axis direction via the table (8) due to the operation of the Y-movement drive source (11) connected to the column (9).
) is operated by the X-axis drive source 0 connected to the column (9).
) in the X-axis direction.

Further, the head holder (5) has an index axis (to) in the Y-axis direction and an index axis (to) in the Y-axis direction within the machine frame (5a) fixed to the movable frame (4) as shown in FIGS. The index shaft 03 is connected to a drive source 0υ such as a thermometer through a worm gear mechanism, and the drive shaft α4) is connected to a gear train α The input shaft (A) is connected to the spindle motor (6) of the turret spatula P (7) through each bevel gear. ), and the turret head (7
)'s index axis α is attached to the seat as described later, so that the input movement is engaged with the drive shaft α to prevent rotation.
, each spindle (6) K, the spindle motor θ8)
Also, the turret head (7) is given an index rotation by the drive source (to), so that any one of the slots (6) is rotated in the fX-axis direction. I tried to direct it.

According to the present invention, the turret head (7) is removably attached to the lateral side of the head holder (5), that is, on the same side in the Y-axis direction, and A head magazine @ having a plurality of radial support arms Φυ that detachably grip the turret head (7) in each direction.
, any one of these support arms eυ can be freely selected to the exchange position (c) facing the lateral movement locus of the holder (5) by means of an indexing mechanism provided in the magazine (a), and By the lateral movement of the holder (5) in the Y-axis direction - side, the turret head (7) 'i=
The head magazine (A) is replaceable, and as shown in the figure, the head magazine (A) is attached to the machine tool main body (A) on the machine 8 (1), as shown in FIGS. 5 and 6. 3), an index axis (23a) substantially parallel to the Y-axis, which is installed on the frame (c) with the same side pressure in the Y-axis direction;
) and a driving source (23c) such as a servo motor connected to the -X7 row (23b), and a plurality of fixed support arms Qη extending radially from the index shaft (23a). , and the table support arm (
A stopper spatula P (7) is gripped by a removable button at a protrusion (to) provided on the opposite side of the input shaft (4) by a clamp portion (21a) provided at the tip of the input shaft (4). When the source (23c) is used, any one of the support arms 01) is selectively moved to the replacement position.

In addition, the index axis θ field of the head holder (5) is provided with a mounting seat that includes a positioning bottle () and a clamp member (E) on the flange at the end of the head holder (5), and the turret head is mounted at the seat. (7) 'f It is designed to be removably positioned and fixed in the Y-axis direction.

In the illustrated example, each support arm Q force is tilted outward in the Y-axis direction, and the axis of the index shaft (23a) is tilted rearward in the X-axis direction, so that the exchange position (ha) is )
In this case, the input shaft of the turret head (7) on the support arm (b) is oriented in the Y-axis direction, but in other positions, the turret head (7) moves backward and interferes with the movement of the machine tool body (3). ?I made it impossible to get it.

Next, its operation will be explained.

Used turret head of turret type machine tool (7)
is a head holder that is attached to the head holder (5) and is laterally moved in the Y-axis direction toward the replacement position (c) by the operation of the Y-axis drive source 0υ, and this lateral movement allows the replacement The clamp part (
Insert the protrusion (a) of the spatula F''' (7) into the head (7) to grip the head (7), and then release the clamp of the clamp member (c) of the head holder (7). At the same time, move the holder (7) slightly to the replacement position (c).
the drive source (23c) of the head magazine (2).
) is operated to selectively move the turret head (7) stocked in the magazine (a) to the replacement position (c), and then move the head holder (7) to the replacement position (c). The turret head (7) is clamped by the clamp member (support), the clamp part (21a) of the support arm QTJ is unclamped, and the head holder (5) is moved by the drive source αη for Y@. ) is returned to its old position and prepared for the next machining operation.

As described above, according to the present invention, a machine tool body equipped with a three-axis orthogonal coordinate type movement mechanism has a plurality of support arms on the side in the lateral direction of the arrangement section, each of which holds a turret head in a detachable manner. After arranging the head magazine, any one of the support arms is placed on the main body by the indexing mechanism.
The turret head can be freely selected to an exchange position facing within the lateral movement locus of the ladder holder, and the turret head can be exchanged between the holder and the m2 support arm selected at the exchange position by the lateral movement of the head holder. Since the turret head can be replaced without using a conveyance device, the head replacement device can not only be made smaller, but also the replacement work can be done using the movement mechanism of the main body, which improves the work efficiency and saves the operator time. Contains effects such as being able to reduce the burden on people.

[Brief explanation of the drawing]

FIG. 1 is a side view of an example of the embodiment of the present invention. FIG. 3 is a plan view taken along the line ■-■ in FIG. 1, and FIG. FIG. 5 is a front view of the head magazine as seen from the index axis direction, and FIG. 6 is a partially cutaway side view thereof. (2)...Work set 8 (3)...Machine tool body (
5)...Head holder (7)...Turret head Q1)...Support arm (Secret...Head magazine holder...Index mechanism (2)...Replacement position Patent applicant Honda Motor Co., Ltd. company

Claims (1)

[Claims] A turret in which a turret spatula P is attached to a head holder supported by a machine tool body equipped with a 3-axis orthogonal coordinate type movement mechanism, and the workpiece on the set table in front is machined by the operation of the body. In the mold machine tool, a turret head is detachably attached to the lateral side of the head holder, and a plurality of radial support arms for detachably holding the turret heads are provided on the lateral side of the arrangement part of the main body. A head magazine having a head magazine is arranged, and any one of the support arms can be freely selected to an exchange position facing within the lateral movement locus of the holder by an indexing mechanism provided in the magazine, The turret head can be freely exchanged between the holder and the support team selected to the exchange position by lateral movement to f! A head exchange device for a turret type machine tool with lf# characteristics.