JPS6279934A - Facing head built-in boring machine with tool exchanger - Google Patents

Abstract

PURPOSE:To automatically exchange a tool by an exchanging arm of one kind, by mounting the tool to a tapered shank holder of the same construction while stopping a main spindle and a facing head to a fixed position to exchange the tool by the exchanging arm further supplying tool mounting and removing pressure oil of a facing head tool holder from a side of the exchanging arm. CONSTITUTION:A drilling system tool and a cutting system tool are respectively mounted to a tapered shank holder of the same construction while to a tool magazine 31. And the tool is automaticallyh exchanged, for a main spindle 24 and a facing head tool holder 27 which are stopped in a fixed position for the circumferential direction, by forward, reverse, turning and traversing action of an exchanging arm 34 using its both end clamping claws 35 to hold the tool. For mounting the tool to and removing it from the facing head tool holder 27, pressure oil is supplied by automatically connecting a pressure oil supply socket 44 in an exchanging arm part with a pressure oil plug, provided in the facing head tool holder 27, and a facing head slider 26 holding the facing head tool is loosened. In this way, the tool can be automatically exchanged by the exchanging arm of one kind.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a face plate built-in boring machine with a tool changer that allows fully automatic tool exchange of the main spindle and face plate.

[Conventional technology]

FIG. 6 is a front view of a machine tool equipped with a conventional automatic tool changer disclosed, for example, in Japanese Patent Publication No. 58-5081'7, and the outline of the tool changer is as follows.

A spindle head 2 is supported on one side of the column 1 so as to be able to move northward, and a spindle (main shaft) 3 is rotatably supported on this spatula 1''2, and a tool is attached to the iT end and rotated for machining. In the column 1, tools are supported vertically in a large number of tool sockets housed in an endless chain, and the selected tool is placed in the opening 4. To replace the tool on the spindle 3, the spindle head 2 is raised to the intermediate position.The tool in the vertical position at the opening 4 position is held by the tool drawer and pulled out at 9.
Rotate it by 0 degrees, take it out of the opening 4, and take it into a horizontal position.

Subsequently, the tool transfer device 5 clamps the tool of the tool pull-out device at one end of the exchange arm 6, and the tool of the spindle 3 is clamped at the other end, moves forward to pull out both, rotates 1800 times, and retreats. As a result, the tools are exchanged with each other, and the exchange arm 6 releases its grip and returns to its original position.

This conventional device has only one automatic tool change on the spindle 3. Another conventional automatic tool changer is, for example, a magazine-equipped machine tool disclosed in Japanese Patent Publication No. 5B-22301, which will be explained with reference to FIG. A headstock 8 is supported at the front of the machine frame 7 so as to be movable upward HH.
A main shaft 9 is rotatably supported by this headstock, and the tool is fully fitted and held at the front end and rotated for machining. A magazine 10 supports a tool holder 14 in which a tool is fitted in tool holder receivers 13 of tool holder support plates 11 and 12 at both ends. :.

The tool holder fitted in the main shaft 9 and the tool holder on the tool holder support plate 11 are completely replaced, and the tool holder at one location on the main shaft 9 is automatically replaced. ``Problems'' In the conventional machine tools with automatic tool changers as mentioned above, the tool is in one main spindle, and the tool is changed at this one point. It was divided into different types of tools.

However, with the face plate built-in horizontal width 9 machine, it is necessary to change tools at multiple positions of the main spindle and the face plate tool holder of the face plate slider, which poses the problem that conventional equipment cannot be used. Ta.

In this way, the face plate built-in horizontal width boring machine allows tool replacement at multiple locations. However, since it is a multi-tasking machine tool that uses a mix of drilling tools and cutting tools with different shank shapes, automatic tool changes are difficult and had to be changed manually.

Furthermore, in the above-mentioned wide-sweeping nine discs, the face plate tool holder provided on the face plate slider is moved together with the movement of the face plate slider, and rotated as a unit by the rotation of the face plate, so conventionally hydraulic pressure was used to attach and detach tools. From this point of view, the face plate tool had to be replaced manually, which lowered productivity.

This corner opening was made to solve these problems, and allows automatic tool exchange at multiple locations between the spindle and the face plate tool holder, and the drill tool and cutting tool can be exchanged using the same exchange arm. The purpose of the present invention is to obtain a cross-boring machine with a built-in face plate and a tool changer.

[Means for solving problems]

The face plate built-in horizontal width boring machine with a tool changer according to the present invention attaches a drilling tool and a cutting tool to each taber shank holder of the same structure, attaches them to a tool magazine, and stops the main shaft and face plate at a fixed position. Means is provided, and the tools in the tool magazine and the tools in the spindle and face plate tool holder are transferred by an exchange arm, and hydraulic pressure for attaching and detaching tools to the face plate tool holder is supplied from the exchange arm side.

[Effect]

In this invention, the drill-type tool and the cutting-type tool are respectively attached to the same grooved taper shank holder,
The tool is clamped by the clamping claws at both ends of the exchange arm against the spindle and face plate tool holder, which are installed in the tool magazine and stopped at a fixed position in the circumferential direction, and the exchange arm moves forward and backward once. The tool is automatically changed by the traversing and traversing movements.

Attachment and removal of tools from the face plate tool holder can be carried out by supplying pressurized oil through automatic connection of the hydraulic system from the exchange arm, and by loosening the hold on the face plate tool by the face plate slider.

〔Example〕

FIG. 1 is a front view of the main parts of a transverse υ board with a built-in face plate and a tool changer according to an embodiment of the present invention.

The table part on which the workpiece is placed has a column 22 fixed on an Opet 21 (not shown), and a spindle head 23 is supported on this column so as to be able to move up and down. The main shaft rotates during machining and is moved forward and backward, and the tool is held in place by fitting into the tapered part within the tip. A face plate 25 is rotatably supported by the spindle head 23 and rotates for cutting, and supports a face plate slider 26 so as to be movable in all radial directions.

This face plate 25 portion is shown in an enlarged view in FIG. 2, and both face plates 25 are designed to be rotated. The face plate slider 26 supported by the face plate 25 is moved in the radial direction after the main shaft 24 is retracted and the tip is retracted. A pair of face plate tool holders 27 are attached to both front sides of the face plate slider 26.

These tool holders 27 are provided with a hydraulic plug 29 that serves as a supply port for hydraulic pressure for attaching and detaching the face plate tool 46, and a compression plug 3o that serves as a supply port for compressed air for cleaning the face plate tool holder within two days. There is. The attachment and detachment of the face plate tool 46 is performed after the tool fixing spring in the face plate tool holder 27 is released by hydraulic pressure.

Returning to FIG. 1, reference numeral 31 denotes a tool magazine attached to the other side of the column 22 or a support on the floor (not shown) at a predetermined height position, and a large number of tool magazines are arranged and formed into a taper shank holder of the same shape. A tool (not shown) is inserted into the tool socket 32 and held in a horizontal position. 33 is column 22
A support base 34 is horizontally fixed on the support base, and an exchange arm 34 is supported so as to be movable laterally on the support base, and a pair of clamping claws 35 are provided at each end for clamping and releasing operations. It is provided. 36 is a drive motor controlled by a control device (not shown) for feeding the exchange arm 34't laterally to a desired position. the tool socket 32;
The front end of the main spindle 24 and the face plate tool holder 27 are formed into taper shank holders of the same shape, so even if drilling tools and cutting tools are mixed together, they can be replaced without any problem.

037, which is shown in an enlarged view in FIG. 3, is a movable feed stand supported on the support stand 33, and is movably guided by a pair of guide rods 38. 39 is a pole screw that is rotated by the drive motor 36 and moves the movable feed table 37 laterally; 40 is a movable support that is supported on the movable feed table 37 so as to be able to move downward, and that supports the exchange arm 34 on the front side; It is moved up and down by the cylinder 41. Exchange arm 34
is rotated in the directions of arrows A and B by a rotation cylinder 42 attached to the movable support 40, and the movable support 40
The forward and backward cylinder 43 attached to arrow C,
It moves +jiJ forward and backward in the D direction. The lower part of the movable support 40 is provided with a hydraulic pressure supply socket 44 connected to the hydraulic plug 29 of the face plate tool holder 27 and a compressed air supply socket 45 connected to the compressed air plug 30.

Hydraulic pressure that passes through the movable support 40 is applied to the hydraulic pressure supply socket 44 from an externally available oil hose (not shown). In addition, the compressed air supply socket 45 is connected to a movable support 4 from an external flexible air hose (not shown).
Compressed air passing through 0 is added.

Tool exchange using the apparatus of the above-mentioned embodiment will be explained in the case of a face plate tool with reference to FIG. 5, which is an explanatory diagram showing the order of operation.

The face plate 25 is held in a circular position by a well-known fixed position stopping means (not shown; for example, a locking means using an engaging claw for a positioning hole on the outer periphery of a fixing sleeve of the face plate 25, or an encoder means for detecting and stopping a predetermined position in a rotational direction). The face plate slider 26 becomes horizontal with respect to the circumferential direction, and the hydraulic plug 29. The compressed air plug 30 is stopped at a fixed position facing upward. The position of the key with respect to the tool in the socket of each face plate tool holder 27 is fixed in the circumferential direction, and the position of the key with respect to the tool of each tool socket 32 of the tool magazine 31 is also changed between the two sides. is set to match.

First, as shown in Figure 5g5 (a), the exchange arm 34 holds a new tool 47 from the tool magazine 3 at its upper end and is positioned on the face plate tool holder 27.

Continuing! As shown in FIG. 5(b), the replacement arm 34 is lowered and held by the clamping claws 35 at the lower end of the old tool 46, and the hydraulic supply socket 44 and the hydraulic plug 29 are completely connected. This applies hydraulic pressure to the face plate tool holder 27,
The hold on tool 46 loosens. At the same time, the compressed air supply socket 45 and the compressed air plug 30 are connected, and the inside of the tool holder 27 after the tool 46 is pulled out can be cleaned. Then, as shown in FIG. 5(c), the exchange arm 34 is moved forward and the old tool 46tl is removed.

Next, when the exchange arm 34 is moved 1800 times and retreated, the new tool 47 is pushed into the face plate tool holder 27 and held as shown in FIG. 5(d).

Further, when the exchange arm 34t is raised, as shown in FIG.
)become that way. Next, by moving the replacement arm 34 horizontally, forward, downward, and backward, the old tool 46
is the empty tool socket 3 at the required position in the tool magazine 31
It can be inserted into 2 and stored.

To change the tool of the main spindle 24, as shown in FIG.
is moved forward to the position of the face plate tool holder 28, and
A known fixed position stopping means (not shown) is used to set the key in the tapered tool hole to a rotational position at a predetermined position in the circumferential direction. Subsequently, the exchange arm 34 is lowered, the old tool on the main shaft is clamped with the clamping claws 35 and pulled out, and replaced with the same 13 operations as in the case of the face plate tool.

In the above embodiment, two face plate tool holders 28 are provided on the face plate slider 26, but the number may be increased or decreased as necessary.

Further, in the above embodiment, a compressed air plug 30 and a socket 45 are provided for cleaning the face plate tool holder 27, but they may be omitted depending on the case.

〔Effect of the invention〕

As described above, according to the present invention, a drill type tool and a cutting type tool are mounted in a tool holder with a taper shank of the same structure and housed in a tool magazine, and when changing tools, the main shaft and face plate are stopped for positioning. The means stops at a fixed position in the circumferential direction, and the exchange arm exchanges all the tools in the tool magazine and the tools on the spindle and face plate tool holder.As the exchange arm lowers for tool exchange, the exchange arm stops at a fixed position in the circumferential direction. The hydraulic path is connected to the hydraulic path of the face plate tool holder, hydraulic pressure is applied to the face plate tool holder, and the spring pressure for fixing the tool pressure is relaxed, making it easy to automatically replace the face plate tool and to easily replace drill-type tools. Even in the case of complex machining in which a cutting tool and cutting tool are used at the same time, automatic tool exchange can be performed using one type of exchange arm.

[Brief explanation of drawings]

FIG. 1 is a front view showing an outline of a face plate built-in type horizontal machine with a tool changer according to an embodiment of the present invention, and FIG.
Figure 3 is a perspective view of the exchange arm shown in Figure 1, and Figure 4 shows the position of the main spindle in Figure 1 when changing tools. FIG. 5 is an explanatory diagram showing the automatic tool change using the change arm shown in FIG. FIG. 2 is a diagram and a perspective view. 23... Main spindle head, 24... Main shaft, 25... Face plate, 26... Face plate slider, 27... Face plate tool holder, 29... Hydraulic plug, 30... Compressed air plug, 31 ...Tool magazine, 32...Tool holder, 3
4... Replacement arm, 35... Pinch claw, 40... Movable support, 44... Hydraulic pressure supply socket, 45... Compressed air supply socket, 46. 47... Tool, figure The same number 8 in the middle indicates the same or equivalent part.

Claims (2)

[Claims] (1) A tool magazine that accommodates multiple tool holders on the front that are formed into tapered shank holders of the same shape and that each insert and hold tools in a horizontal position.It is rotatably supported by the spindle head and is used when changing tools. in the forward position,
a main shaft that is stopped at a predetermined circumferential position by a first fixed position stopping means; a face plate that extends through the main shaft through the center and is rotatably supported by the main spindle head; a tool holder is attached to the front surface; A face plate slider held movably in the radial direction at the front part of the face plate, a hydraulic plug provided on one side of the tool holder for passing pressurized oil for attaching and removing tools inside, and a face plate used when replacing the face plate tool. a second fixed position stopping means for stopping the face plate slider in a horizontal position and a circumferential position with the hydraulic plug facing upward; a pair of clamping claws are provided at each end to clamp and hold the tool; The column is supported by a movable support that is moved up and down by a vertical movement means, and is disposed above the front surface of the column, and is moved laterally by a lateral movement means, and is moved up and down by the movable support. an exchange arm that is moved forward and backward by a rotating means and rotated 180° by a rotating means, and is attached downwardly to the movable support body and communicates with an external hydraulic circuit; A hydraulic socket is provided which is connected to the hydraulic plug by lowering and transmits hydraulic pressure, and the exchange arm pulls out the used tool from the main spindle or the face plate tool holder, and inserts a tool from the tool magazine side to replace it. A boring machine with a built-in face plate and a tool changer. (2) A compressed air plug is provided on one side of the face plate tool holder in line with the hydraulic plug, and a compressed air socket is provided at the bottom of the movable support so that compressed air from the outside can pass;
The tool exchange according to claim 1, wherein the socket is connected to the plug by lowering the movable support during tool exchange, and the inside of the tool holder is cleaned with compressed air. A boring machine with built-in face plate.