JPS5837106B2 - Machine Tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine tool having a function of conveying a workpiece.

Generally, various types of processing such as cutting, drilling, polishing, etc. are performed by each machine tool in order to give the workpiece the desired shape and structure, but the transfer of the workpiece between the machine tools is difficult. Although various transport means such as transport vehicles, chain blocks, hoists, and small cranes are sometimes used, the current situation is that most of the transport relies on human power.

However, transporting the workpiece by manual labor is not only labor-saving, but also has the drawback that it is unreasonable because it takes a large amount of time to finish processing the workpiece.

In view of the difficulties associated with transporting and handling the workpiece when a workpiece is subjected to multiple machining processes using multiple machines, the present invention has a workpiece transport function, and the transport mechanism is adapted to the normal use of the machine. The purpose was to provide a machine tool that not only does not interfere with the process, but also allows the workpiece to be machined while continuously conveying it in a horizontal line when the machines are installed in series. Its composition is
At least a vertically movable main shaft is provided above the front surface of a column erected on a base, and a table is provided on which a workpiece is mounted at a position corresponding to the main shaft on the base;
In a machine tool, a pallet table is removably mounted on the upper surface of the table, and the pallet table is moved in the left-right direction of the column,
Support tables for transporting the pallet table are provided on both sides of the column so as to be able to move forward and backward, and are positioned so as to sandwich the table from both sides when advanced. a transfer guide mechanism for the pallet table extending in a plane parallel to the column and in the left-right direction with respect to the column;
The transfer guide mechanism has a support arm on its front surface that can be moved horizontally while being guided by the mechanism, and that can be tilted or raised to rotate forward when moving left and right to sandwich the pallet table from both sides thereof. The main feature is that.

Next, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show a side cross section and a front cross section of a conventionally known vertical milling machine A, which basically includes a base 1, a column 2 erected behind the base 1, and a column 2. A spindle 3 is mounted on the front side so as to be movable up and down, a table 4 is mounted on the top of the base below the spindle 3 so as to be movable back and forth and left and right, and the spindle 3 is mounted inside the column 2. The spindle drive sources 5 and 51 that control the vertical movement and rotation of the cutter 3a, the table movement drive sources 6 and 61 attached to the table 4, the transmission mechanism of each drive source, the coolant supply mechanism, etc. It is being disciplined.

In the milling machine A mentioned above, the spindle 3 can be manually fed by a manual feeder 5a using a shaft transmission system, and the table 4 can be manually fed by manual feeding mechanisms 4a and 4b in both axial directions. A control device N allows automatic operation.

1N is an operation display section of the numerical control device N.

The milling machine A is generally used alone regardless of whether it is a general-purpose machine, a special-purpose machine, an automatic machine, a manual machine, a multi-spindle machine, or a single-spindle machine.

In other words, normally, the processing of a workpiece involves at least two or more mechanical processes, such as drilling with a drill press and cutting with a milling machine, but conventionally, these processing machines were installed individually within a factory. However, this is because each workpiece is processed by a specific machine for each process.

However, as mentioned above, machining a workpiece through the above-mentioned setup is inefficient and cost-saving, so in the present invention, the milling machine A described below is Added configuration.

FIGS. 3 and 4 show a side cross section and a front cross section of a vertical milling machine A, in which the configuration according to the present invention is added to the conventional apparatus shown in FIGS. 1 and 2, and the first The same reference numerals as in FIG. 2 and FIG. , 8 and in front of the column 2.
The difference is that a transfer guide mechanism 10 having a support arm 10h for supporting and moving is provided, so the configuration of each of these parts will be described in detail below.

The transport support table 7 includes a mounting base 7a attached to one side of the column 2 along the depth direction of the pace 1, and a sliding guide member 7b provided on the mounting base 7a. , a projection 7c supported and guided by the guide member 7b is provided on the lower surface, and a transfer guide member 7e for supporting and guiding a pallet table, which will be described later, in the width direction of the machine is provided on the upper plane side.
The tip of the rod 7g of the drive cylinder 7f installed on the mount 7a in parallel with the direction c is connected to the lower surface of the front side of the table 70, and the position shown by the solid line in FIG. The position indicated by the chain line indicates the advanced state, and the position indicated by the chain line indicates the retreated state.

Note that the transport support table 8 is different from the table 7 described above in that it is provided on the other side of the column 2, but the other components and supporting members are simply symmetrical in position with respect to the center of the column 2. Since they are the same, the explanation will be omitted.

Therefore, at the transport support table 8, the table 7
Roman letters that are the same as , refer to the same parts.

The pallet table 9 is removably mounted on the upper surface of the table 4, and its planar shape is approximately rectangular, with its front and rear sides 9
a, 9b and the lower surfaces of these sides are the tables 7, 8
It is formed so as to be guided by a transfer guide member 7e provided on the upper surface on the near side.

It goes without saying that a workpiece can be set on this table 9.

The transfer guide mechanism 10 for the pallet table 9 has a length slightly larger than the width of the base 10 and is installed above the pallet table 9 in front of the column 2. It is admonished as follows.

That is, a horizontally long support beam 10a is attached to the front of the column 2,
Chain wheels 10b and 10b' driven by a motor 10c are provided on the front of both sides in the length direction (width direction of the machine) of the beam 10a, a chain 10d is routed between both chain wheels, and a bracket NOe is provided on the chain 10d. On the other hand, a guide protrusion 10f parallel to the chain is provided on the front surface of the support beam 10a, and a sliding body 10i is attached to the protrusion 10f with two support arms 10b pivoted on both sides thereof. a bracket N that is slidably mounted and the sliding body is provided on the chain 10d;
It is configured to be connected to Oe.

Thus, when the chain 10d to which it is connected is operated by the rotation of the chain wheels 10b, 10b', the sliding body 10i having the support arm 10h moves together with the chain 10d and moves on the guide protrusion 10f. Also, the support arm 10h is configured to move up and down around an attached shaft by the operation of a motor 10g which is its rotational drive source, and the two support arms 10h When the arm 10h is positioned directly above both sides of the pallet table 90, the arm 10h is rotated downward to sandwich the pallet table 90 from both outside sides, and then the sliding body 1
By moving Oi, the pallet table 9 can be moved onto the transport support table 7 or the transfer guide member 80 mentioned above Te.

Reference numeral 10j denotes a cover that covers the transfer guide mechanism 10, and this cover 10j has a cutout from which the support arm 10h protrudes to ensure its rotation and horizontal movement.

In addition, in the structure of each part mentioned above, the transport support tables 7, 8
The positions of the guide surfaces of the transfer guide members 7e and 8e are aligned with the lower surface and front and rear surfaces of the pallet table 9,
Therefore, the upper surfaces of the transfer guide members 7e and 8e are formed to match the upper surface of the table 4 on the machine side.

The above constitutes an example of the machine of the present invention, and this machine usually has two or more of them lined up, specifically, the same transport support table 7, 8, pallet table 9, and transport guide mechanism 10 as described above. By using machines of the same type or different types equipped with the same or different types in parallel with their transport support tables 7 and 8 and transport guide mechanism 10 connected, effects that cannot be obtained by conventional processing using individual machines can be obtained. This point will be explained below.

5 and 6 show a vertical milling machine A, a multi-spindle drilling machine B, and a boring machine C constructed according to the present invention, with their respective transport support tables 7 and 8 and transport guide mechanism 10 butted on the sides. This figure shows the front and plane views of the processing machines arranged in a connected manner so as to form a shape, and here, the conveyance support table 7 of the milling machine A and the conveyance support table 8 of the boring machine C, which are located on both outside sides, are shown. are connected to each other via a pallet table transport mechanism 11. Therefore, for example, when a pallet table 9 that is started to be fed from a milling machine A is sequentially fed to an adjacent machine and the workpiece is finished being machined, the pallet table 9 is transferred again. It is designed to be returned to the original milling machine A.

Note that this transport mechanism 11 has a transport support table 7 and a transport guide mechanism 1 similar to those provided in each machine on the intake side of the pallet table 9, that is, on the right side of the boring machine C in this example.
0 are provided, and these serve as a mechanism for taking the pallet table 9, on which processing of the workpiece has been completed, into the transport mechanism 11.

Further, the transport mechanism 11 may have any type of mechanism as long as it can transport the pallet table 9, and its layout is not limited to that shown in the drawings.

Further, when connecting the machines A, B, and C, the transfer guide mechanism 10 is provided so that its longitudinal side ends are partially overlapped, as shown by solid lines and chain lines in FIG.

This is to ensure that the movement of the pallet table 9 due to the movement of the support arm 10h is performed smoothly at the joint part of the guide mechanism 10 of each machine. The support beam 10a equipped with the mechanism 10 is symmetrically oriented with the support beam 10a of the milling machine A, and is positioned higher than the support beam 10a of the milling machine A, so that both transfer guide mechanisms 10 partially overlap. .

Here, the support arms 10 of these two guide mechanisms 10
The heights of h are set to be the same even though the height positions of the support beams 10a are different.

The above-mentioned mechanical device is similar to conventional machines in that each machine performs a predetermined process on a workpiece, but each machine performs a predetermined process on the same workpiece in succession. There is a special feature when processing.

That is, if a milling machine is used to process a workpiece in a predetermined manner, a drilling machine is used to drill a hole, and a boring machine is used to perform boring work, the conveyance supporting table 7, 8 of each machine is used.
are advanced to the front side of each machine and set so as to be able to guide the pallet table 9 in the lateral direction, while the slide table 10i and support arm 10h of each transfer guide mechanism 10 are in the neutral position, that is, the pallet table 9 with the support arm 10h raised.

When the processing by the milling machine A is completed in this state, the support arm 10h of the milling machine A rotates downward, grips the pallet table 9 from both outside sides, and moves the slide table 1 in this position.
0i is slid to the right and reaches its sliding end.

When the sliding table 10i of the milling machine A reaches its sliding end, the pallet table 9 is positioned across the right transport support table 8 of the milling machine A and the transport table 7 of the next drilling machine B. The support arm 10h of the milling machine A is released from the pallet table 9, and the slide table 10
While returning the i to its original neutral position, the slide table 10 of the drilling machine B
i to right above the table 9 and its support arm 1
0h, the table 9 is held, the drilling machine B slide table 10i is positioned directly below the spindle 3, and the support arm 10h is rotated upward to begin drilling.

The pallet table 9 after drilling the workpiece is
It is sent onto the boring machine C by the same operation as explained above,
After the workpiece is bored, the forwarding mechanism 1
1 and forwarded.

The above description has been made based on the case where there is one pallet table 9, but even when there are a plurality of tables 9, processing can be sequentially performed by each machine and the pallet table 9 can be sent to the next processing machine.

When using each machine constituting the above device alone, move back the respective transport tables 7 and 8 so that their front end surfaces are aligned with the front surface of the column 2, and also move the support arm 10h to the neutral position of the slide table 10i. If it is stored in the case 10j, it can be used as a stand-alone machine as in the past.

The present invention is as described above, and it is possible to connect various machine tools and automatically transfer workpieces between each machine while retaining the ability to use each machine tool independently. Therefore, it is possible to eliminate the loss time associated with transferring the workpiece that occurs during machining using conventional machine tools, and also to save labor and make it unmanned, which is extremely useful industrially.

[Brief explanation of the drawing]

Figure 1 is a partially sectional side view of a conventional milling machine.
FIG. 2 is a front view of the same, FIG. 3 is a partially sectional side view of an example of a milling machine according to the present invention, FIG. 4 is a front view of the same, and FIG. 5 is a front view of an example of a machine tool device according to the present invention. Figure, 6th
The figure is a plan view of the same. 1...Base, 2...Column, 3...
...Spindle, 4...Table, 5,5
1... Spindle motor, 6, 61...
...Tefle motor? , 8... Conveyance support table, 9... Pallet table, 10...
...Transfer guide mechanism, 10h...Support arm.

Claims (1)

[Scope of Claims] 1. A column having a vertically movable main shaft above the front surface of a column erected on a base, and a table on which a workpiece is mounted at a position corresponding to the main shaft on the base; Further, in a machine tool in which a pallet table is removably mounted on the upper surface of the table and the pallet table is moved in the left-right direction of the column, when the machine tool is advanced to both sides of the column. A support table for transporting the pallet table is provided so as to be movable forward and backward, and is positioned so as to sandwich the table from both sides;
A transfer guide mechanism for the pallet table is provided above the pallet table and on the front surface of the column, and extends in a plane parallel to the front surface of the column and in the left-right direction with respect to the column; A machine tool characterized in that the machine tool has a support arm on the front surface that can be moved horizontally by being guided by the mechanism and that can be tilted or raised to rotate forward when moving left and right and to clamp the pallet table from both sides thereof. . 2 At least a vertically movable main shaft is provided above the front surface of a column erected on a base, and a table is provided on which a workpiece is mounted at a position corresponding to the main shaft on the base, and the upper surface of the table is In a machine tool, a pallet table is removably mounted on a machine tool, and the pallet table is moved in the left-right direction of the column, and when the pallet table is advanced to both sides of the column, the table is moved from both sides. A support table for transporting the pallet table, which is positioned to sandwich the pallet table, is provided so as to be movable forward and backward;
A transfer guide mechanism for the pallet table is provided above the pallet table and on the front surface of the column, and extends in a plane parallel to the front surface of the column and in the left-right direction with respect to the column, and the transfer guide mechanism is provided on the front surface of the column. The machine tool is constructed of a machine tool which is guided by the mechanism to move left and right, and is provided with a support arm which can be tilted or raised to rotate forward when moving left and right and clamp the pallet table from both sides thereof. Alternatively, when two or more of these machine tools are moved, and the transport support table of each machine tool is advanced to both sides of the table on the front side of each column, each transport support table is aligned in the left and right direction, and A machine tool characterized in that in each machine tool, the ends of adjacent transfer guide mechanisms are arranged in parallel so as to overlap.