JPH07112657B2 - Piping to the circular table on the pallet, wiring equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to piping for a circular table placed on a pallet,
The present invention relates to a wiring device.

Conventional Technology Conventionally, in a machining center, an APC is often attached to save setup time and improve productivity, and an NC rotary table is often installed on an APC pallet to further increase added value. Electric wires and hoses for control are connected to the rotary table, and as shown in FIG. 5, the electric wires and hoses 101 are usually taken out from the machine table 102 and connected to the rotary table 103. , APC operation for pallet 104
A method of removing the product is generally performed when it is carried out of the machine.

As shown in Fig. 6, the method devised as a countermeasure against this
A rail 106 is provided in the moving direction of the pallet above the APC 105, and a plurality of hangers 107 movably provided on the rail 106 hang the middle of the piping and wiring cables, and the hanger 107 moves in synchronization with the movement of the pallet. There are things that I was able to do.

Problems to be Solved by the Invention Among those described in the prior art, the former has a problem that it takes a lot of setup time, is inefficient, and hinders automation, while the latter is adopted for a machining center with an entire cover. It has a problem that it cannot be done.

The present invention has been made in view of the above problems of the conventional technology, and an object of the present invention is to provide a rotary table on a pallet capable of APC operation with a cable connected in a machining center with an entire cover. It is intended to provide the piping and wiring device of.

Means for Solving the Problems In order to achieve the above object, a pipe and wiring device for a circular table on a pallet according to the present invention is an automatic pallet exchange device (hereinafter referred to as APC) in which a circular table is placed on a pallet. In the machining center with the whole cover having
The vertical pillar on the machine side of the gate frame of the pallet changer also serves as one of the pillars for guiding the door between the machine and the APC of the overall cover, and piping and wiring to the other vertical pillar of the gate frame. A supply box is provided, a fluid pressure cylinder that operates in conjunction with the pallet changing operation is provided on the horizontal column of the gate frame, a guide bar is provided on the gate frame in parallel with the horizontal column, and it is bent horizontally and on the circular table side. A pipe having an end portion and a wiring relay duct are connected to the driving side of the fluid pressure cylinder, and are provided so as to be movable between the main body side and the APC side by being guided by the guide bar and attached to the horizontal column. On the receiving plate, a leaf spring is provided in a U shape between the box side end of the receiving plate and the relay duct,
Piping and wiring cables from the box to U of the leaf spring
Connected to the terminal box of the circular table through the relay duct along the inside of the letter, and the bent tip of the relay duct is free to prevent the opening and closing of the door by the pillar that also serves as the vertical pillar of the gate frame. By providing a notch that allows entry, the pallet can be replaced with the piping and wiring connected.

When the cover door opens and the pallet with the circular table on standby on the APC is moved to the machine table, at the same time the fluid pressure cylinder moves the relay duct to the machine side along the guide bar. The pipe that has moved and the bent tip of the relay duct has penetrated into the entire cover through the notch of the column, and has come out of the tip and is connected to the rotary table.
The wiring cable goes into the entire cover. In this state, the central portion of the relay duct remains inserted into the notch, but the cover opening and closing guide is not hindered, and the cover is closed for cutting.

Example An example will be described with reference to FIGS. 1 to 4.

In a well-known vertical machining center, a saddle 2 is movably mounted on a guide in the Y-axis direction provided on the front side of the bed 1, and on a guide in the X-axis direction provided on the saddle 2, The table 3 is mounted so that it can be moved and positioned.

A column 4 is erected on the back side of the bed, and a spindle head 5 is movably mounted on a Z-axis direction guide provided on the front surface of the column 4. A spindle 6 is rotatably supported by the spindle head 5, and a tool magazine device 7 is attached to the left side surface of the column.

A two-sided side-by-side APC8 is installed on the right floor of the machine,
Two pallets 9A and 9B can be moved alternately between the machine table 3 and the APC main body, and an A-axis NC circular table is placed on the pallet 9A.
11 is installed.

This machine has a tall full cover that is open only on the top
12 is attached, and the door 15 is installed along the guides 13b of the columns 13A and 13B that are vertically installed in both corners on the APC8 side of the front cover 12.
Is movably provided in the vertical direction. And the door
15 is adapted to be opened upward by a pulling device fixed to a horizontal frame 14 which is horizontally installed on the columns 13A and 13B.

For the gate frame 16 of the piping and wiring device to the rotary table 11, the front pillar 13A is also used as the vertical pillar on the machine side, and the horizontal pillar is formed between the vertical pillar 17 and the vertical pillar 17 which is erected at the separated right side position. It has a structure in which 18 is installed, and a supply box for piping and wiring is provided above the vertical pillar 17.
19 is installed. A fluid pressure driven rodless cylinder 21 is fixed on the horizontal column 18, and a guide bar 22 is attached parallel to the upper side of the rodless cylinder 21.
The relay duct 24 is fixed on the piston 23 of the rodless cylinder 21, and the bracket fixed on the upper surface of the relay duct 24.
25 is movably fitted in the guide bar 22. The relay duct 24 has an arm portion 24b that is bent horizontally and at a right angle to the circular table side at the left end of a central portion 24a that is long in the moving direction, and an arm portion 24c that is bent at a right angle and horizontally at the right anti-circular table side.
The right arm portion 24c is provided with an inlet for piping and wiring cables passing through the duct, and the left arm portion 24b is provided with an outlet.

The support plate 26 is horizontally fixed to the front side surface of the horizontal column 18, and
A leaf spring 27 for guiding the cable is attached on the upper side of the relay duct 24 and the relay duct 24, and the arm portion of the supply box 19 and the relay duct 24.
The pipes and wiring cables between 24c are provided so as to be able to move smoothly along the inner side of the leaf spring 27, and the pipes 28 and the wires 29 protruding from the arm portion (tip portion) 24b of the relay duct 24 have circular tips. It is connected to the terminal box 11a of the table 11.

Furthermore, the intermediate duct 2 is attached to the pillar 13A that also serves as the vertical pillar of the gate frame 16.
The notch 13a is provided so that the tip of 4 can freely pass, and the guide 13b for the door 15 is notched, but when the relay duct 24 is positioned on the machine side, the left arm 24b is entirely covered. The door can be freely opened and closed while it is inside 12.

Next, the operation of this embodiment will be described.

The workpiece is attached to the rotary table 11, and the pallet 9A waiting on the APC main body is moved to the table 3 of the machine when the door 15 is opened and a pallet exchange command is issued from the NC. In conjunction with this pallet exchange operation, fluid pressure is supplied to the right chamber of the rodless cylinder 21, the relay duct 24 moves leftward and is positioned on the machine side, and the tip 24b passes through the notch 13a to cover the entire body. Invade inside. At this time, the central portion 24 of the relay duct 24
Although a is still inserted in the notch 13a, the door guide is not hindered and the door 15 is closed.

The pipe and wiring device of the present invention is not limited to the system in which the relay duct 24 is moved by the rodless cylinder 21, and a plurality of sliders 52 are moved to the horizontal column 51 as shown in FIG. It is also possible to dispose the relay duct 24 fixedly attached to the slider at the tip end by a plurality of fluid pressure cylinders 53 so as to move in association with the pallet exchange operation.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has the following effects.

A gate frame that doubles as a vertical pillar with a pillar for the APC side door of the entire cover is provided, and a relay duct for piping and wiring cables is movably provided along the guide on the horizontal pillar of this gate frame. , The drive member moves the relay duct to the machine side and the APC side in conjunction with the pallet exchange operation, and the tip side of the relay duct is loosely inserted into the notch provided on the column on the machine side and placed inside the entire cover. Since the door can be opened and closed after the entry, it is possible to change the pallet while connecting the piping and wiring of the rotary table, eliminating the work of removing piping and wiring as in the past. The efficiency is greatly improved.

Also, since the gate frame is provided at a position off APC, the upper part of the pallet is free and the crane can be easily attached and detached.

[Brief description of drawings]

FIG. 1 is a front view of the piping and wiring device for the circular table on the pallet of this embodiment, FIG. 2 is a side view of FIG. 1, FIG. 3 is a top view of FIG. 1, and FIG. 5 is a front view of the drive means for the relay duct of the embodiment of FIG. 5, FIG. 5 is an explanatory view of a conventional detachable pipe and wiring device, and FIG. 6 is a conventional hanger movable pipe for wiring and wiring device. FIG. 8 …… APC 9A, 9B …… Pallet, 11 …… Circular table 13A …… Post, 13a …… Notch 16 …… Gate frame, 18 …… Horizontal pillar 21 …… Rodless cylinder 24 …… Relay duct

Claims (1)

[Claims] 1. In a machining center with an entire cover having an automatic pallet changing device (hereinafter referred to as APC) in which a circular table is placed on a pallet, a vertical pillar on the machine side of the gate frame of the pallet changing device is the whole cover. One of the pillars having a door guide between this machine and the APC is also used, the other vertical column of the gate frame is provided with a pipe and wiring supply box, and the pallet exchange operation is performed on the horizontal column of the gate frame. A fluid pressure cylinder that operates in tandem is provided, a guide bar is provided in the gate frame parallel to the horizontal column, and a pipe and wiring relay duct having a horizontal and bent tip end on the circular table side are added to the fluid pressure cylinder. It is provided on the receiving plate attached to the horizontal column between the box side end of the receiving plate and the relay duct while being connected to the moving side and guided by the guide bar so as to be movable between the main body side and the APC side. U-shaped leaf spring A cable for piping and wiring is connected to the terminal box of the circular table from the box along the inside of the U-shape of the leaf spring through the relay duct, and the pillar door is also used as a vertical pillar of the gate frame. Piping to a circular table on a pallet, characterized in that the bent tip of the relay duct is provided with a notch so that the bent tip of the relay duct can freely enter without hindering the opening and closing, and the pallet can be replaced with the piping and wiring connected. Wiring device.