JPS6310242Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a woodworking machine equipped with a router head or a boring head, and by preparing two suction tables and using them alternately, it is possible to load and unload workpieces onto and from the suction table. The present invention relates to a suction table exchange device that can perform cutting and cutting using a router head or the like in parallel, and particularly relates to an improvement in its suction mechanism.

First, a router equipped with a suction table exchanging device will be explained. As shown in FIGS. 1 and 2, a central base 2 protrudes forward from the center of the lower part of the main body 1, and a pair of rails 3, 3 extending in the front-rear direction when viewed from the front is provided on the upper surface of the central base 2, and a sliding plate is mounted on the rails 3. 4 is slidably arranged. A threaded portion 5 is provided on the lower surface of the sliding plate 4, and this threaded portion 5 is threaded onto a male threaded shaft 6 running in the front-rear direction inside the central base 2. A motor 7 is connected to the rear end of the male threaded shaft 6, and the rotation of the motor 7 causes the sliding plate 4 to slide in the front-rear direction. A pair of rails 8, 8 are attached to the front and rear of the upper surface of the sliding plate 4, running in the left and right directions when viewed from the front, and on the left and right front of the central base 2,
A right preset base 9 and a left preset base 10 extending outward are provided, and both preset bases 9,
A pair of rails 11, 11 are attached to the front and rear of the upper surface of 10, respectively, running in the left and right directions when viewed from the front.
The rails 11, 11 are linearly connected to the rails 8, 8 on the slide plate 4 when the slide plate 4 reaches the stop position in front of the central base 2 (the position shown in FIG. 2). Two suction tables 12, 13 are slidably arranged on the rails 8, 11, 11. Both suction tables 12 and 13 are made to be movable in the left and right direction by rods 14a and 15a of table movement cylinders 14 and 15 arranged on preset bases 9 and 10. Main body 1
A pair of upper and lower slide rails 16, 16 extending in the left-right direction are provided on the upper part of the slider, and a movable table 17 is slidably disposed thereon. The moving table 17 has a sliding rail 1
Screw shafts provided along 6 and 16 (not shown)
to move left and right. An elevating body 18 is disposed in front of the movable table 17 so as to be movable up and down.
A router head 19 is attached to the front of the router 8 so as to be movable up and down.

To work with this device, place the right suction table 12 on the sliding plate 4, and place the router head 19
At the same time as cutting work is carried out, the workpiece to be worked next is placed on the left suction table 13 on the left preset base 10. When the work on the material on the right suction table 12 is completed, the right suction table 12 is moved onto the right preset base 9 and the workpiece is unloaded. At the same time, the left suction table 13
is moved onto the sliding plate 4 and cutting work begins. The cutting work is carried out by rotating the cutting tool (not shown) of the router head 19 at high speed while moving the elevating body 18 up and down and moving the movable table 17 up and down.
This is done by moving the sliding plate 4 from side to side and back and forth. Therefore, the tables 12 and 13 not only move left and right for movement, but also move back and forth for cutting work.

Suction from the suction tables 12 and 13 is carried out by providing suction pumps 20 and 20 on the left and right sides of the main body 1 and connecting them to the left and right suction tables 12 and 13 with hoses 21 and 21, respectively, as shown in FIG. Since two suction pumps 20, 20 are attached in this way, it not only causes an increase in cost, but also
As shown in FIG. 2, the suction tables 12 and 13 are disposed outside the suction tables 12 and 13 and protrude greatly to the left and right, which has the disadvantage of obstructing the work.

This idea attempts to eliminate the above-mentioned drawbacks by providing one suction pump, connecting this suction pump to the connected valves provided on the sliding plate and the left and right preset bases via hoses, and By providing connected valves corresponding to the above connection valves on the left and right suction tables, suction for the left and right suction tables can be performed by a single suction pump, reducing costs and at the same time eliminating the need for hoses like conventional devices. This is an attempt to solve the inconvenience of the suction table protruding from the left and right sides and obstructing work.

Examples will be described below based on the drawings. As shown in FIG. 3, a suction pump 32 is provided at the rear of the main body 31, and a connection valve 36 is provided at the rear of the sliding plate 33 and the left and right preset bases 34, 35. via a hose 37. Left and right suction table 3
A connected valve 40 corresponding to the above-mentioned connecting valve 36 is provided on the rear surface of the connecting valves 8 and 39. Connection valve 36 between sliding plate 33 and left and right preset bases 34 and 35
are common, and the connected valves 40 of the left and right suction tables 38 and 39 are also common, so the explanation will be given using the sliding plate 33 and the right suction table 39 placed above it as an example, as shown in FIGS. 3 and 4. The cylinder 41 serving as the main body of the connection valve 36 is formed into a cylindrical shape with one end closed and the other end tapered. cylinder 4
1 is slidably equipped with a tip-shaped sliding body 42 that slides in the left-right direction as shown in FIG.
If you turn to the side and move to the right, you will see the open end 4 of the cylinder 41.
Make it stick out more than 11. An air cylinder 43 is provided at the left end of the cylinder 41, and a rod 44 of the air cylinder 43 passes through the bottom plate 45 of the sliding body 42 and extends inside the sliding body 42 to the right. A spring 46 is compressed and mounted on the outer periphery of the rod 44 between the air cylinder 43 and the bottom plate 45 of the sliding body 42, and a flange 47 at the center of the rod 44 presses the bottom plate 45 of the sliding body 42 from the inside. Through holes 48 and 49 are formed in the sliding body 42 and the cylinder 41.
49 to a connecting body 50 to which the hose 37 is connected, and the connecting body 50 is fixed to the sliding plate 33 by a connecting portion 51. The cylinder 52 of the connected valve 40 is connected to the through hole 53 on the lower surface of the right suction table 39.
The opening end 521 is the side facing the connection valve 36. An opening/closing plate 54 for opening and closing the opening end 521 is provided at the opening end 521, and the opening/closing plate 54 is connected to a fourth opening/closing plate 54.
It is supported at one end of a rod 55 that moves back and forth in the left and right directions in the figure. A spring 56 is compressed and wrapped around the outer periphery of the rod 55 between the opening/closing plate 54 and the cylinder 52,
Press the opening/closing plate 54 from the inside to the outside to open the cylinder 5.
The open end 521 of No. 2 is closed. When the right suction table 39 moves to the fixed position on the sliding plate 33, the connected valve 40 is connected to the connecting valve 36.
Set it so that it corresponds to correctly. Further, a leak valve 57 is provided between the hose 37 connecting the left and right suction tables 38, 39 and the suction pump 32. As shown in FIG. 5, the leak valve 57 includes a cam 59 rotated by an air cylinder 58, an opening/closing plate 61 that opens and closes a flow path 60 in the valve 57 by the cam 59, and a through hole 62 that communicates with the outside air. Become.

Next, the operation of the above device will be explained. First, a workpiece (not shown) is placed on the left suction table 38 on the left preset base 34 side, and then the rod 4 of the air cylinder 43 of the connection valve 36 is placed in order to communicate the suction table 38 with the suction pump 32.
Extend 4. When the rod 44 is extended, the flange 47
moves forward, the sliding body 42 is pushed by the spring 46 and moves forward to the right, closing the gap between the connected valve 40 and the cylinder 52. Next, the tip of the rod 44 pushes the opening/closing plate 54 to open the open end 521 of the cylinder 52 and communicate with the cylinder 41 of the connection valve 36. When communicating with the cylinder 41, the suction table 38 communicates with the suction pump 32, and the workpiece on the suction table 38 is suctioned and fixed.

Prior to this, the flow path 60 is closed with the opening/closing plate 61 of the leak valve 57, and when the through hole 62 is open and the valve 57 is in communication with the atmosphere, the air cylinder 58 turns the cam 59 to open the through hole 62. At the same time, the opening/closing plate 61 is turned to open the channel 60.

When the machining on the right suction table 39 side is completed, the right suction table 39 is moved onto the right preset base 35, and the left suction table 38 carrying a new workpiece is sent to it, but before this movement, the connection is made. Communication between the valve 36 and the connected valve 40 is cut off.
That is, the rod 44 of the cylinder 41 is shortened, the opening/closing plate 54 of the cylinder 52 is closed by the spring 56, and the sliding body 42 of the cylinder 41 is moved backward to separate the connecting valve 36 from the connected valve 40. The left suction table 38 is moved to the right in the separated state, but the table momentarily moves to the sliding plate 3.
3, so there is very little leakage during movement, so there is no risk of the workpiece being misaligned due to loosening of suction during movement. If the leak is severe,
An accumulator 522 is attached to the cylinder 52 of the connected valve to maintain the degree of vacuum.

When the left suction table 38 is at the fixed position on the sliding plate 33, the connected valve 40 is placed on the sliding plate 3.
Connect it to the connection valve 36 of No. 3, put it in a suction state, and start machining work. The connection between both valves is the same as that described above, so the explanation will be omitted. On the other hand, the right suction table 39 that has been moved onto the right preset base 35 extends the rod 44 of the air cylinder 43 and connects the sliding body 42 to the cylinder 52.
4 is retracted to connect the cylinder 52 to the hose 37. The cylinder 58 of the leak valve 57 is operated to close the flow path 60 with the opening/closing plate 61 to cut off the flow path with the suction pump 32. At the same time, the through hole 62 is opened and communicated with the atmosphere, thereby reducing the vacuum in the right suction table 39. Release. When the suction force of the suction table 39 disappears, the workpiece is lowered from the suction table 39.

This invention is configured as explained above, and the suction of the left and right suction tables can be performed with one suction pump, which not only reduces costs, but also
When the suction table is moved, the connected valve on the suction table side is closed to maintain the suction state, so there is no risk of the workpiece being displaced while the suction table is being moved. Furthermore, unlike conventional devices, the hose does not protrude to the left or right due to the movement of the suction table, which eliminates the drawback of hindering work.

[Brief explanation of drawings]

Fig. 1 is a front view showing a router having a suction table exchange device, Fig. 2 is a plan view showing a router having a conventional suction table exchange device, and Fig. 3 is a plan view showing a router with a suction table exchange device of this invention. FIG. 4 is a cross-sectional view taken from FIG. 3, and FIG. 5 is a plan view showing the leak valve. 32...Suction pump, 33...Sliding plate, 34...
...Left preset base, 35...Right preset base, 36...Connection valve, 37...Hose, 3
8...Left suction table, 39...Right suction table, 40...Connected valve.

Claims (1)

[Scope of utility model registration request] A machine that performs machining and setting of workpieces in parallel by having a sliding plate installed in the center and left and right suction tables that move on preset bases installed on the left and right sides of the sliding plate. A suction pump is provided, and the suction pump is connected to the sliding plate and the connection valves provided on the left and right preset bases via a hose, and the suction pump is connected to the left and right suction tables when the suction table is in the fixed position. A suction table exchange device for a woodworking machine, which is equipped with a connected valve that communicates with the connecting valve of the machine and leads to a suction pump.