JPH0121737Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotating rack in a tool storage facility for storing tools used in a machining center.

[Conventional technology]

Conventionally, tools used in a machining center are stored in a tool storage facility, and the required tools are taken out according to the requirements of the machining process in the machining center, but a tool storage panel 51 is used to store the tools. The tool accommodating panel 51 has a large number of tool sockets 52 for accommodating tools on the front side, and the panel 5
1 is a plurality of endless chains 5 spanning between sprockets 53 fixed to a pair of rotating shafts 57 in multiple stages.
A roller 55 fixed to 4 and provided at the bottom of the panel is placed on a guide rail 56, and the panel is moved by rotating the sprocket 53, and the panel 51 holding a predetermined tool is stopped in front of an automatic tool changer (not shown). and tools were being replaced.

However, each time the tool is replaced, the entire panel 51 must be supported and moved using a chain.

[Problems that the idea aims to solve]

In this invention, when taking out the tools stored in the tool storage equipment, without having to move all the tools at the same time, we provide multiple rotating racks consisting of endless bands that have tool sockets and can rotate independently, and each rotating rack is By moving separately, the rotating rack with unnecessary tools is prevented from moving, and when the rotating rack is moved, the weight of the tool applies a force in the direction of twisting the endless chain of the rotating rack. The purpose is to prevent the wheels from running smoothly, meandering, wobbling, etc.

[Means for solving problems]

A tool socket support body is provided on the side of an endless chain formed by connecting link plates with pins, and the upper roller is supported by a vertical shaft provided at the top of the pin, and by a horizontal shaft provided at the bottom of the pin. The lower roller is supported by an inverted U-shaped upper rail frame that is open at the bottom, and the lower roller is supported by a lower rail frame that has a rising portion and an L-shaped bend at the top. , the L-shaped bend of the lower rail frame was opposed to the side surface of the pin of the endless chain.

[Effect]

In order to load a tool into the side portion of the endless chain formed by connecting link plates with pins, the endless chain is subjected to a force in a direction that causes the upper part to fall toward the tool side. In addition, the endless chain, the tool support for loading tools, and the endless chain lower roller that supports the weight of tools, etc., slide the lower roller in the opposite direction on the contact surface between the lower roller and the lower rail frame. There is a force working to make it happen. If the weight of the endless chain, tool support, tool, etc. is small, the force that tries to make the lower roller slide will be overcome by the friction between the lower roller and the lower rail frame, and the lower roller will not be able to slide. If the weight of the tools, etc. becomes large, the lower roller will shift laterally as it overcomes the friction described above.

Therefore, we supported the lower roller of the endless chain with a U-shaped upper rail frame that was open at the bottom to prevent it from falling over.
The L-shaped bent part connected to the lower rail frame supports the center of the endless chain pin and prevents the lower roll from shifting laterally.

〔Example〕

The tool storage equipment 1 has multiple stages of rotating racks 7 arranged in parallel, each consisting of an endless chain 3 having a tool socket support 2 supported by upper and lower rail frames 5 and 6 between a pair of sprockets 4 and 4. This is what I did. The rotating rack 7 transmits the rotation of a drive motor (not shown) to the sprocket shaft 8, rotates by rotating the sprocket 4, and automatically replaces the tool socket support 2 with the tool socket 9 in which a desired tool is inserted. It is designed to be stopped at the front of the device 10.

The rotating rack 7 is constructed as follows. 3 is an endless chain, which connects a plurality of link plates 10 to the upper row 10.
The link plates 10 are arranged in three stages: a, middle row 10b, and lower row 10c, and each link plate 10 is connected by a pin 11. Vertical shaft 1 configured in the upper extension of pin 11
2, the upper roller 13 is placed horizontally, and the pin 11 is placed horizontally.
A horizontal shaft 1 is attached to the lower end of the horizontal axis 1 by an inverted U-shaped leg member 14.
5, and a lower roller 16 is vertically supported on the horizontal shaft 15. The upper roller 13 is the tool storage equipment 1
The lower roller 16 is guided by the upper rail frame 5 which is supported on the column 17 by a support arm 18, and the lower roller 16 is guided by the lower rail frame 6 which is also supported on the column 17 by a support arm 20. be done.

The lower rail frame 6 forms a rising part 22 to prevent the lower roller 16 from falling off, and an L-shaped bent part 23 is formed in the upper part of the lower rail frame 6, and a pin is formed on the side of the L-shaped bent part 23. 11, prevents the lower roller 16 from wobbling laterally, and keeps the tool socket 9 in a predetermined position.

The upper row link board 10a and the lower row link board 1
0c and every other extension part 24, 25 respectively
will be established. The extensions 24 and 25 extend downward and parallel at an angle of approximately 20 degrees to the virtual horizontal plane, and are joined together by a bar 26 to form the tool socket support 2, with the upper extension 24 , the tool socket 9 is supported. A detected member 27 such as a magnet is provided on the link plate 10a constituting the tool socket support 2, and the support arm 1 of the rail frame 5
A detection member 28 such as a switch is attached to 8, and when the two coincide with each other as the endless chain 3 advances, a positioning device 30, which will be described later, is activated.

The positioning device 30 includes a fluid cylinder or solenoid 31 and a fitting member 32 provided at the tip of the rod.
The fitting member 32 has a trapezoidal tip end and is shaped so that it can be inserted between the pins 11 of the endless chain 3. Then, the detection member 28
When the detected member 27 and the member 27 face each other as the endless chain 3 advances, the generated signal activates a fluid cylinder or solenoid 31 to detect the inserted member 32.
By advancing between the pins 11, the endless chain 3 is stopped at a predetermined position. 33 is a fitting member 32
It is a guide pin.

In the tool storage facility 1, tools are held in tool sockets 9 at appropriate locations on a rotary rack 7 depending on the type of tool, and the tools are taken out and used as required by a machining center (not shown). At this time, the rotating rack 7 receives power transmitted from a drive source (not shown) to the sprocket shaft 8, rotates the sprocket 4, moves the endless chain 3 meshing with the sprocket 4, and is installed in the endless chain 3. When the tool socket support 2 faces the tool changing position of the automatic tool changing device 10, the detection member 28 detects that it is facing the detected member 27 and operates the cylinder or solenoid 31 of the positioning device 30,
A fitting member 32 is projected between the pins 11 of the endless chain 3 to make the stop signal of the endless chain 3 accurate.

At the time of transition of the endless chain 3 above, the endless chain 3
The weight of the endless chain 3 is borne by the lower rail frame 6 on which the lower roller 16 is placed, but the top of the endless chain 3 pivots to the right in FIG. 1 due to the weight of the tool supported by the tool socket 9. It is energized in the direction indicated by arrow A.

Therefore, in order to support this power, in this invention,
An upper roller 13 is provided on a vertical shaft 12 extending to the top of a pin 11 of an endless chain 3 so as to be on a virtual horizontal plane, and an inverted U-shaped rail frame 19 is opened at the bottom.
By supporting the upper roller 13, the movement of the endless chain 3 in the direction of arrow A in FIG. 1 is prevented.

Further, the lower roller 16 supports the weight of the endless chain 3 including the tool and the tool socket support 2, but when the upper roller 13 is prevented from pivoting in the direction of arrow A, the lower roller 16 moves toward the lower rail. Frame 6
It receives a force that tries to overcome the friction and slide in the opposite direction of arrow A. In order to cope with this, the lower rail frame 6 is provided with an L-shaped bent part 23 at the upper part, so that the side surface of the bent part 23 can receive the side surface of the pin 11 of the endless chain 3. Even if it tries to meander due to the weight of L
The side surface of the pin 11 is received by the side surface of the bent part to prevent the endless chain 3 from meandering.

〔effect〕

Since the rotating rack of the present invention has a tool socket support on the side of the endless chain, the weight of the tool socket support causes the endless chain to have its upper part facing the tool socket support and its lower part in the opposite direction. Although it is easy to turn, the upper roller is supported by a vertical shaft provided at the top of a pin that connects the link plates of the endless chain, and the lower roller is supported by a horizontal shaft provided at the bottom of the pin. , the lower rail frame is supported by preventing lateral swinging by an inverted U-shaped upper rail frame that is open at the bottom, and the lower roller has a rising part and an L-shaped bend at the upper part. Since the L-shaped bend of the lower rail frame is opposed to the side surface of the pin of the endless chain, the upper part can resist the force of twisting the endless chain in the lateral direction due to the weight of the tool and tool socket. The rollers are durable in the lateral direction, and the L-shaped bend prevents the lower roller from slipping laterally within the lower rail frame due to the weight of tools, etc., resulting in smooth meandering and rattling of the endless chain. can be operated.

Moreover, the rail frame has a simple structure with an inverted U-shape that is open at the bottom or a rising part and an L-shaped bend, so the rail frame does not need to be large-scale, and there is no risk that the tool storage equipment will become large and heavy. do not have.

[Brief explanation of drawings]

Fig. 1 is a vertical side view of the rotary rack, Fig. 2 is a schematic plan view thereof, Fig. 3 is a front view of the endless chain, Fig. 4 is a schematic front view of the tool storage equipment, and Fig. 5 is a diagram of the conventional device. FIG. 5... Upper rail frame, 6... Lower rail frame, 7
... Rotating rack, 10 ... Link plate, 11 ... Pin, 12 ... Vertical shaft, 13 ... Upper roller, 15
... horizontal axis, 16 ... lower roller, 22 ... rising portion, 23 ... L-shaped bent portion.

Claims (1)

[Scope of utility model registration request] A tool socket support is provided on the side of an endless chain formed by connecting link plates with vertically extending pins,
An upper roller is supported by a vertical shaft provided at the top of the pin, a lower roller is supported by a horizontal shaft provided at the bottom of the pin, and the upper roller is provided with an upper rail frame having an inverted U-shape that is open at the bottom. The lower roller has a substantially inverted U-shape with an open top, and has a rising portion forming one end of the U-shape at one end,
The other end of the U-shape is supported by a lower rail frame which extends upward to form an L-shaped bend, and the L-shaped bend of the lower rail frame is supported by a tool socket of the pin of the endless chain. A rotating rack in tool storage equipment that faces the side opposite to the side where the body is installed.