JPS6348363Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tool storage cylinder tilting device for a tool storage magazine in an automatic tool changer for a large machine tool, a machining center equipped with a tool storage magazine, or the like.

In general, a tool storage magazine has a large number of tool storage cylinders attached to the outer periphery of a disk that is pivoted so that it can be indexed to the base rotation axis, so that the tool storage cylinders are tilted from parallel to the base rotation axis to perpendicular to the base rotation axis. The means for tilting the tool storage tubes include those with a hydraulic cylinder installed in each tool storage tube or those equipped with a tilting cam, but both have the disadvantage of complex structures and inability to operate reliably. It was hot.

In order to solve this problem, an example of a tool storage cylinder tilting device disclosed in Japanese Patent Publication No. 58-22302 is known, but this device holds each tool storage cylinder of the tool storage magazine with its own clamp member, When the storage magazine is indexed and rotated, the tool storage cylinder freely rotates around the outer circumference of the magazine without moving toward or away from other parts, and is tilted and tilted by tilting members such as actuators and cylinder rods installed at the tool exchange position. It is designed to perform a restoration.

However, even in the case of the above-mentioned known example, the tilting device is complicated, and the number of clamp parts equal to the number of tool storage cylinders is required on the tool storage magazine side, which is a factor that increases manufacturing costs. Furthermore, the actuator is used only to raise and lower the tool storage tube, and is not used to support the outer periphery of the tool storage tube, so it has been pointed out that there is a drawback that heavy tools cannot be used.

The present invention was proposed to solve these conventional drawbacks, and its purpose is to create an annular sliding surface around the outer periphery of the tool storage cylinder so that even heavy tools can be stored in the tool storage magazine. At the same time, the horizontal direction support and raising/lowering operation of the tool storage cylinder at the tool exchange position can be reliably performed by the operation of one actuator and the interlocking of the cam mechanism. A gap is formed in the rotating part to facilitate rotation, and the guide roller can engage the engaging part (groove) of the guide block without interfering with it when the tool storage tube moves to the tool exchange position. be.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The tilting device according to the present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 is a schematic configuration diagram showing a tool storage cylinder tilting device according to the present invention. A rotating device 1 is pivotally supported on a tool storage cylinder 2 via a pin 3, and the tool storage magazine is located at a tool exchange position. A hydraulic cylinder 10 is incorporated into the main body 9 located at . Guide block 12 and block 13 are attached to rod 11 which is moved up and down by hydraulic cylinder 10, cam follower 14 is attached to block 13, and lever 5
It is in contact with A pair of levers 5 are connected to a main body 9 by a pin 6, and a plate 7 and a sliding surface member 8 are attached to the lever 5 to support the tool storage cylinder 2. Note that the vertical positioning of the tool storage cylinder 2 is performed using a stopper 15 installed on the main body 9.
It is now practiced at 16.

When operating the tool storage cylinder tilting device configured as described above, first, in the tool exchange position, when the tool storage cylinder 2 is horizontal, the rod 11 of the hydraulic cylinder 10 is moved as shown in FIG. At the lower end position, the guide block 12 and the lever 5 have a gap 18 with the guide roller 4 of the tool storage cylinder 2, and the cam follower 14 presses the lever 5 with the pin 6 as a fulcrum, and the sliding surface material 8 supports the tool storage cylinder 2 in a horizontal state. In this state, the tool storage cylinder 2 can be smoothly moved without interfering with the indexing of the tool storage magazine.

That is, the guide block 12 and the guide roller 4
If the tool storage cylinder 2 is horizontally positioned only by the hydraulic cylinder 1, the guide block 12 and the guide roller 4 are in contact with each other. Therefore, even if the tool storage cylinder 2 is indexed in this state, the guide block 12 and the guide roller 4 may interfere with each other due to variations in the position of the tool storage cylinder 2, making it impossible to index the tool storage cylinder 2. Therefore, in order to prevent the guide block 12 and the guide roller 4 from contacting each other when the tool storage cylinder 2 is horizontal, the hydraulic cylinder 1 is used.
1, the tool storage cylinder 2 is at a position slightly lower than the horizontal position, and at the lowering end of the hydraulic cylinder, the plate 7 attached to the lever 5 and the sliding surface material 8 push up the tool storage cylinder 2 from below, and the tool storage cylinder 2 moves in an arc around the pin 3, so that the guide roller 4 and the guide block 12 no longer come into contact with each other, leaving a gap 18 in both the vertical direction and enabling the tool storage cylinder 2 to be indexed. At this time, the horizontal position of the tool storage cylinder 2 is secured by the stopper 17.

Therefore, when the tool storage cylinder 2 is placed in a vertical position, the rod 11 of the hydraulic cylinder 10 is raised, and when this rod 11 is raised, the lower side of the guide block 12 is moved to the guide as shown in FIG. The roller 4 is pushed up, and the tool storage cylinder 2 is rotated to the left as shown in the figure using the pin 3 as a fulcrum. Guide block 1
2 rises, the cam follower 14 also rises, and the lever 5 becomes free and rotates under the counterclockwise rotation force from the tool storage cylinder 2, becoming vertical as shown in FIG. Positioning of the tool storage tube 2 to maintain its vertical posture is performed by pressing the tool storage tube 2 against stoppers 15 and 16.

Further, when returning the tool storage cylinder 2 to the horizontal position, the rod 11 of the hydraulic cylinder 10 is lowered. When the rod 11 is lowered, the guide block 12 pushes down the guide roller 4, and the tool storage cylinder 2 is moved downward. The tool storage cylinder 2 returns to the horizontal state by rotating clockwise about the pin 3 as a fulcrum. When the tool storage cylinder 2 returns to a substantially horizontal state, the cam follower 14 comes into contact with the lever 5 via the block 13 that moves together with the guide block 12, and the lever 5
When the roller 14 and the guide block 12 are lifted, the tool storage cylinder 2 is rotated slightly clockwise due to contact with the sliding surface material 8, and a gap 18 is created between the roller 14 and the guide block 12.

Note that the horizontal state of the tool storage box 2 is maintained by the stopper 17.
and lever 5.

As described above in detail based on the embodiment shown in the drawings, the tool storage cylinder tilting device of the tool storage magazine according to the present invention has a simple structure, and the tool storage cylinder can be horizontally supported and tilted. The operation can be performed reliably by the operation of one actuator and the interlocking of the cam mechanism, and a gap is created between the tool storage cylinder and the rotating part to facilitate rotation. In addition, according to the present invention, the actuator such as a hydraulic cylinder used to raise and lower the tool storage tube also serves to support the tool storage tube on the outer periphery of the main body, so the number of parts is reduced and costs are reduced. Moreover, it has the advantage that it can be used even with heavy tools.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of the tool storage cylinder tilting device according to the present invention, Fig. 2 is an explanatory diagram showing the turning operation state of the tool storage cylinder according to the invention, and Fig. 3 is a diagram of the tool storage cylinder according to the invention. It is an explanatory view showing a vertical posture completion state. 1 is a rotating device, 2 is a tool storage cylinder, 3 is a pin, 4
is a guide roller, 5 is a lever, 6 is a pin, 7 is a plate, 8 is a sliding surface material, 9 is a main body, 10 is a hydraulic cylinder, 11 is a rod, 12 is a guide block,
13 is block, 14 is cam follower, 15,1
6 and 17 are stoppers.

Claims (1)

[Scope of utility model registration request] A rotating device in the tool storage magazine, a tool storage cylinder with a guide roller whose one end is pin-coupled to the rotating device for tilting and returning, and an actuator built into the main body of the tool storage magazine at a tool exchange position. a guide block which is moved up and down by the actuator and has an engagement portion with the guide roller; a cam follower attached to the guide block; A tool storage cylinder tilting device for a tool storage magazine, comprising a lever for supporting a tool storage cylinder, and characterized in that a gap is provided at an engagement portion between a guide roller and a guide block installed in a rotating part of the tool storage cylinder. .