JPS63272410A - Machine tool equipped with gang head exchange device - Google Patents

Abstract

PURPOSE:To obtain a machine tool equipped with a gang head exchange device simply without requiring so much space. CONSTITUTION:A slide plate 20 of a column 16 is driven up to the height where it forms a line with a slide plate 54 while the slide plate 54 of a supporting portion 50 is empty and a slide plate 56 is holding a gang head 24. A horizontal moving member and a claw 62 are rotated around the horizontal axis line, as they are forwarded, engaged with the groove 26 of the gang head 24, moved back horizontally to fit them into the slide plate 54, rotated again and the gang head 24 removed. The slide plate 20 is then lowered to the height where it forms a line with the slide plate 56, the claw 62 engaged with the gang head 24 of the slide plate 56 after rotating, the gang head 24 is advanced and then returned to its original location after fixing it into the slide plate 20. The used gang head 24 is conveyed to a head stocker 28 by a conveying means 30 on which a new gang head 24 is conveyed to a location adjacent to the column 16 so as to be on standby.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a machine tool equipped with a gigang head changing device.

[Conventional technology]

JP-A-55-77403 discloses a system in which an annular rail is provided around a machining unit, the gearing head is supported by a movable rail that is a part of the annular rail, and the machining unit and movable rail move together during machining. A machine tool with an exchangeable gigang head is disclosed. Japanese Patent Publication 1986-670
No. 07 discloses a machine tool equipped with a gearing head changing device in which a gearing head standby station is provided on both sides of a processing unit, and the gearing head is pushed from one station to the other station by a rotating arm. Further, Japanese Patent Application Laid-open No. 103713/1983 discloses a multi-axis machine tool having a plurality of gearing heads equally divided into a talent head.

[Problem that the invention seeks to solve]

The above-mentioned JP-A-55-77403 and JP-A-60-60
As disclosed in Japanese Patent Application No. 7007, a gearing head storage section is provided around the processing unit or on both sides of the processing unit, and a plurality of gearing head storage sections are provided in the processing unit as disclosed in Japanese Patent Application Laid-open No. 103713/1983. If a gearing head is installed, the space occupied by the machine must be increased, there is a limit to the number of gearing heads that can be stored, and it is difficult to exchange gearing heads with a head stocker outside the machine.

[Means for solving problems]

A machine tool equipped with a gearing head changing device according to the present invention includes a column attached to a head, and a slide plate that is attached to the column so as to be movable up and down and has a horizontal guide surface, and the gearing head is attached to the slide plate. and a gearing head exchanger is provided, the gearing head exchanger being proximate to the lateral side of the column substantially parallel to the longitudinal axis of the bed and proximate to the head stocker.
a conveying means that passes between the positions; a support that is carried by the conveying means and is pivotable between an upright position and an inverted position;
guides that are arranged in two stages in a vertical relationship when supported by the support part and in the upright position, and that can be aligned with the slide plate guide surface when the slide plate attached to the column reaches a set height position; It is characterized by comprising upper and lower slide plates having surfaces, and a transfer means for slidably transferring the gearing head between the upper and lower slide plates and the slide plate attached to the column. It is something.

〔Example〕

Referring to FIGS. 1 to 3, the machine tool according to the present invention has a head 10, and a workpiece mounting table (not shown) is installed on the bed 10. A column 16 is mounted above the associated lateral guide surfaces 12 and longitudinal guide surfaces 14. A vertical guide surface 18 is formed on the column 16, and a slide plate 20 is slidably attached to this guide surface 18. This slide plate 20 has a horizontal guide surface 22. The gearing head 24 holding a plurality of tools has a groove formed in association with the guide surface 22, and the gearing head 24 can be attached to or removed from the slide plate 20 by pushing the gearing head 24 into the slide plate 20 in a horizontal direction. It looks like this. The column 16 and the slide plate 20 can be moved along their respective guide surfaces by a drive mechanism consisting of a known motor and a feed screw. Further, the gearing head 24 is provided with a groove 26 on its lower surface that engages with a claw of a transfer means, which will be described later.
It also includes a fixing means (not shown) for fixing to the slide plate 20 at a predetermined engagement position.

A head stocker 28 for storing many gearing heads 24 is arranged behind the column 16. In the present invention, any gearing head 24 of the head stocker 28 is used to slide the column 16 (slide play) 2
A gearing head exchange device is provided which can replace the gearing head 24 of zero. This gearing head changing device includes a conveying device 30 mounted on the side of the bed 10 parallel to the longitudinal axis of the bed 10 and passing between a position adjacent to the side of the column 16 and a position adjacent to the head stocker 28. This conveying device 30 consists of a plate with a long linear support guide surface 32 and a conhair heald 34, which is driven by a motor 36. A movable frame 38 for an exchange means is slidably engaged with the support guide surface 32, and is adapted to be latched to a portion of the conveyor heald 34 and driven.

As shown in FIGS. 3 and 4, the movable frame 3
8 has a horizontal hole 40 for engaging with the support guide surface 32 and a cylindrical hole 42 formed on the upper surface side. A stand 46 having a cylindrical base 44 corresponding to the cylindrical hole 42 is provided, and the stand 46 is rotatable about a vertical axis by drive means, not shown. Further, the stand 46 has a pin 48 extending in the horizontal direction, and is capable of supporting a supporting portion 50 of the gearing head changing means so as to be pivotable about a horizontal axis. The support part 50 can pivot about a horizontal axis to assume a substantially vertical standing position and a nearly horizontal falling position, and in order to prevent the support part 50 from interfering with the stand 46 during such pivoting. Furthermore, a relief portion 52 (FIG. 4) is provided at the bottom of the support portion 50.

The support part 50 includes an outer end part 50a extending almost straight from the part attached to the stand 46, and the support part 50 has two upper and lower slide plates 54 and 56.
are integrally formed horizontally with a space between them. Further, this supporting portion 50 is provided with a horizontal transfer means 5 along the middle of two upper and lower slide plates 54 and 56.
8 is provided, and the transfer means 58 includes a horizontal displacement member 60 which is driven horizontally by a feed screw or air cylinder or the like. A claw 62 is attached to the tip of the horizontally moving member 60, and a mechanism for rotating the claw 62 around a horizontal axis is provided inside the horizontally moving member 60. The claw 62 supported by the horizontally moving member 60 moves horizontally along the middle of the two upper and lower slide plates 54 and 56, and further moves the tip of the slide plate 54 and 56 and the proximal end of the slide plate 20 of the column 16. can move beyond.

FIG. 1 shows a state in which the machining head 24 is about to be replaced in order to carry out the next machining operation after a machining operation with the machine tool has been completed.

On one side of the slide plates 54 and 56 of the support part 50,
The next gigang head 24 is ready and the other one is empty. In FIG. 1, the upper slide plate 54 is empty and the lower slide plate 56 has the next gearing head 24. The slide plate 20 of the column 16 is driven up and down to a height position where it is aligned with an empty slide plate of the support section 50, that is, an upper slide plate 54. Thus, when the slide plate 20 of the column 16 and the empty slide plates 1 and 54 of the support section 50 are aligned, the horizontally moving member 60 moves to the claw 62.
We are forced to move forward. In the forward position, the pawl 62
moves column 1 by pivoting about a horizontal axis.
Groove 2 of gearing head 24 of slide plate 20 of 6
6 and then horizontally retreated together with the horizontally moving member 60 to move the gearing head 24 to the column 1.
It can be removed from the slide plates 1 and 20 of No. 6 and fitted into the slide plate 54 of the support section 50.

The pawl 62 then pivots again to the retracted position, where it releases the gearing head 24. This situation is shown in FIG.

Next, the slide plate 20 of the column 16 is lowered to a height position where it is aligned with the lower slide plate 56, and at the same time, the pawl 62 rotates in the opposite direction, so that the gearing head 24 of the lower slide plate 56 is lowered.
engage with. Then, the pawl 62 moves forward to fit the prepared new gearing head 24 into the slide plates 1 and 20 of the column 16, and returns to the original position by rotating and retracting.

In this state the machine tool can be started.

A used gearing head 24 is supported on a slide plate 54 of the support section 50. The used gearing head 24 is transported by the transport means 30 to the head stocker 28, and a new gearing head 24 can be loaded onto one slide play (54, 56) and wait again at a standby position adjacent to the column 16.

When being transported by the transport means 30, the support part 50
is pivoted into an overturned position as shown, for example, in FIG. Then, as shown in FIGS. 5 and 6, the gearing head 24 can be arranged with the tool facing upward, and the head stocker 28 can be configured in the simplest planar configuration. Further, the support portion 50 can pivot together with the stand 46 about a vertical axis.

By combining such movements, the head stocker 28 can be configured vertically as shown in FIGS. Moreover, if it is arranged after the column 16 at right angles to the support guide surface 32 of the conveying means, the least space is required. Further, as shown in FIG. 9, it can also be constructed in combination with a three-dimensional warehouse type head stocker 28.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to obtain a machine tool equipped with a gearing head changing device in a cage without requiring a relatively large space, and the main body of an existing machine tool can also be significantly modified. A gearing head changer can be added without having to do so, and the desired type of head stocker can be used.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a machine tool equipped with a gearing head changing device according to the present invention, FIG. 2 is a perspective view showing the device in FIG. 1 during gearing head changing, and FIG. 3 is a guying head changing device in FIG. FIG. 4 is a perspective view showing a state in which the support part of the exchange device is in an overturned position, FIG. 5 is a perspective view showing a first example using a flat head stocker,
Figure 6 is a perspective view showing the second example using a flat head stocker, Figure 7 is a perspective view showing the first example using a vertical head stocker, and Figure 8 is a perspective view showing the first example using a vertical head stocker. FIG. 9 is a perspective view showing a second example using a stocker, and FIG. 9 is a perspective view showing an example using a multi-level warehouse type head stocker. DESCRIPTION OF SYMBOLS 10... Head, 16... Column, 20... Slide plate, 24... Guyang head, 28... Head stocker, 30... Transportation means, 50... Support member, 46... Stand, 54, 56...Slider, ID plate, 62...
Transfer claw.

Claims (1)

[Claims] A column is attached to the bed, and a slide plate is attached to the column so as to be movable up and down and has a horizontal guide surface, and a gang head is attached to the slide plate, and the gang head is attached to the slide plate. an exchange device is provided, the gang head exchange device being conveyed by a conveyor means passing between a position proximate the side of the column and a position proximate the head stocker generally parallel to the longitudinal axis of the bed; a supporting part which is arranged in a vertical position and is rotatable between a standing position and a falling position, and a slide plate which is arranged in two stages in a vertical relationship when the supporting part is supported by the supporting part and reaches the standing position, and which is attached to the column. Transport for slidably transporting the gang head between upper and lower slide plates having guide surfaces that can be aligned with the slide plate guide surfaces when the set height position is reached, and a slide plate attached to the column. A machine tool equipped with a gang head changing device, characterized in that it is equipped with means.