JPH0615540A - 5-axis control multi-face machining method - Google Patents

Abstract

(57) [Summary] [Purpose] Allows accurate and continuous machining of multiple faces of a work piece by mounting once. [Structure] A multi-face machining method with a 5-axis control system
The work is automatically loaded into the taper-shaped hole of the second rotary table by the work supply means while being held by the work holder at a predetermined initial setting position. ,
From the initial set position, the second rotary
Process by which the work is rotated by a bull, the process in which the work is processed by a tool provided on the spindle, and the processed work
The work together with the work holder by means of the work supply means
A multi-face machining method including a step of unloading from a rotary table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 5-axis control multi-face machining method capable of continuously machining multi-faces of a work by attaching the work once.

[0002]

2. Description of the Related Art For example, a rectangular parallelepiped work may be cut on five sides. In this case, the work mounting surface is attached to the indexing device of the machine tool, and the work is indexed by 90 ° at a predetermined angle, so that the first to fourth surfaces are sequentially faced to the tool, and the first to fourth surfaces are sequentially faced. The fourth surface is processed. However, to further machine the fifth surface, which is the opposite side to the work mounting surface, remove the work from the indexing device and attach it to the table of another machine tool and attach the fifth surface to the tool. Must be faced to process the fifth surface.

[0003]

Therefore, the work needs to be mounted twice, which takes time and hinders the improvement of productivity.

The present invention solves the above-mentioned drawbacks and provides a one-time work.
It is an object of the present invention to provide a multi-face machining method capable of accurately machining a work from the first surface to the fifth surface by attaching the work.

[0005]

Therefore, according to the present invention, in a multi-face machining method of a 5-axis control system, the work is
A step of automatically loading the tape-shaped hole of the second rotary table to a predetermined initial setting position while being held by the work holder and its initial stage. The work is rotated by the second rotary table by a predetermined angle from the set position, the work is processed by a tool provided on the spindle, and the worked work is a work holder. A multifaceted processing method including a step of unloading from the second rotary table by a work supply means together with the above.

[0006]

1 and 2 show the whole apparatus for executing a multi-face machining method according to a preferred embodiment of the present invention, which is applied to a horizontal machining center.

The main body 1 is provided with an operation panel 2, an NC device 3 and a work supply means 4. The body 1 is surrounded by a tip guard 7. The tip guard 7 is the door 5,
Have six. As shown in FIGS. 3 and 4, the main body 1 includes an automatic tool changer 13 (only a part of which is shown in FIG. 4 for simplification of the drawing), a tool magazine 8, a spindle 9 and a bed 10.

The tool 11 of the spindle 9 can be replaced with the tool of the tool magazine 8 by an automatic tool changing device 13. The tool 11 is, for example, a drill.

As shown in FIGS. 3 and 4, the spindle 9 is
The Y-axis stroke S1 from the lower limit level LL to the upper limit level OL (Y-axis machine origin position) by the built-in motor and feed mechanism along the vertical direction of the column 12, that is, the Y-axis direction.
It can move up and down. When replacing the tool 11, the spindle 9 can be further raised to the Y-axis tool replacement position YL.

The rail 10a of the bed 10 has a first table.
The bull 14 is installed so as to be horizontally reciprocally movable in the Z-axis direction by a built-in drive source and feed mechanism. This first table 14
Can be moved to the tool 11 side. That is, the first table 1
4, the Z-axis stroke S2 can be moved from the Z-axis mechanical origin position ZP to the final end position OT as shown in FIG.

A second table 15 is installed on the first table 14 so as to be reciprocally movable in the X-axis direction, that is, in the horizontal direction orthogonal to the Z-axis direction by a built-in motor and a feed mechanism. I am doing it. This second table 15 is X-shaped as shown in FIG.
-Z-axis machine origin position X-Z can be moved from the final end position OM to the X-axis stroke S3.

On the second table 15, the first rotary table 16 is rotated in the direction R about the vertical rotation axis RO.
It is provided so that it can be indexed along. In addition, X-Z
The axis machine origin position XZ can coincide with the rotation axis RO.

The first rotary table 16 can be indexed by an internal motor and an index mechanism at an angle of 1 °, for example.

The first rotary table 16 is provided with an extension 17 extending upward. Side 1 of extension 17
8, a second rotary table 19 is provided so as to be indexable along the rotation direction Q about the horizontal rotation axis QO.

The second rotary table 19 has, for example, an angle of 1 due to the motor 17a and a built-in index mechanism.
Can be indexed by °.

The second rotary table 19 may be of the collet chuck type or the electromagnetic chuck type, for example.
At the center of the second rotary table 19, there is a taper-shaped hole 20 into which a work holder 23 described later is inserted (see FIGS. 4 and 5). Second Rotary Table 19
Turns the current supply on and off,
Can be mounted with the spring force of the disc spring of the collet chuck or the electromagnetic force of the electromagnetic chuck, so-called mounting force, or the mounting force can be released to remove the work holder 23.

The wiring of each motor of the first and second tables 14 and 15 is connected to the NC device 3. The control of the selection of the movement amount and the movement direction of each of the first and second tables 14 and 15 on the Z axis and the X axis is set by a program of the NC device 3. Also, the wiring of each motor of the first and second rotor reticle 16 and 19 is connected to the NC device 3. First and second rotary tables 16, 1
Control of selection of each index angle and rotation direction of 9 is also set by the program of the NC device 3.

Further, the wiring of the motor for vertically moving the spindle 9 in the Y-axis direction is electrically connected to the NC device 3. The control of the movement amount of the spindle 9 in the Y-axis direction and the selection of the movement direction are also set by the program of the NC device 3. Also, the timing of the on / off operation of the mounting force of the second rotary table 19 can be performed by the program of the NC device 3.

Next, the work supply means 4 will be described.
The work supply means 4 has a work station 21 and an automatic work changer 22, as shown in FIGS. This work supply means 4 is a work station 2
The work W arranged in a large number in 1 is loaded onto the second rotary reticle 19 one by one, and after processing, the work W is unloaded from the second rotary reticle 19. It is for.

The carousel 2 of the workstation 21
5 has a setting hole 24 shown in FIGS. 4 and 6. As shown in FIGS. 7 and 8, the work holder 23 has, for example, an iron disk 26 at the upper portion thereof.

Work fixing pieces 26a are provided at four corners on the upper surface of the disk 26. The fixing piece 26a is pressed against the first to fourth surfaces f1 to f4 of the work W to fix the work W to the disk 26.

In the middle of the work holder 23, the groove 27 held by the arm 36 and the groove 2 for determining the initial setting position are provided.
3b and 23c are formed. Work holder 23
A pull stud 28 is attached to the lower part of the. The pull stud 28 is for inserting into the hole 24 and the hole 20 of the second rotary table 19.

As shown in FIG. 2, the workstation 2
A work W is mounted on each disk 26 of No. 1.
The conveyor 25 of this workstation 21 is operated by a driving means (not shown). The rotation timing of the conveyor 25 is given by the program of the NC device 3. Also,
Each operation of the automatic work changer 22 described next is
This is performed according to the program of the C device 3.

Next, the automatic work changer 22 is shown in FIG.
As shown in FIG. 6, it is composed of a main body 29 and an operation unit 30 attached to the main body 29. The main body 29 can rotate 180 ° about the vertical fulcrum shaft 31. When the main body 29 rotates 180 °, the rods 32, 32 move to the retracted position by the stroke J in FIG.

The operating section 30 can be extended from the main body 29 by means of a driving means incorporated in the main body 29 through rods 32, 32 for a stroke S4. (See Figure 4). Operation unit 30
The plate 33 is fixed to the tip of the rod 32. An arm support 35 is attached to the plate 33 via a support 34.

An arm 36 is provided at the lower end of the arm support 35.
Is installed horizontally. The arm 36 is shaped to fit in the groove 27 of the work holder 23. The arm support 35 is supported by a driving means (not shown).
The stroke S5 can be moved up and down along the rail 37 of the door 34. (See FIG. 4) Further, the support 34, the arm support 35 and the arm
The frame 36 can be rotated 90 ° counterclockwise with respect to the plate 33 by a drive means and a rotation mechanism (not shown) as shown by a two-dot chain line in FIG.

Next, consider the case of processing the rectangular parallelepiped work W shown in FIG. The fifth surface f 5 of this work W is a square. Finally, according to the program of NC device 3,
The work W has the first to fifth surfaces f 1 to f 5 drilled by the tool 11.

First, as shown in FIG. 5, the first table 14 is moved to the tool 11 side (Z-axis direction) from the X-Z axis mechanical origin position X-Z by a predetermined distance l. Next, as shown in FIG. 5, the second table 15 is moved by the X-axis stroke S3 along the X-axis direction and is positioned at the final end OM position.

Further, the first rotary table 16 is shown in FIG.
From the state shown in (1), the rotation axis QO of the second rotary table 19 is made parallel to the X axis by indexing clockwise by 90 °.

By doing so, the first and second rotary tables 16 and 19 are set to the states shown in FIGS. 4 and 5 (hereinafter, referred to as initial setting positions).

Next, the operation of the automatic work changer 22 will be described with reference to the arrows A1 to A11 in FIG.

The automatic work changer 2 shown in FIGS.
The rod 32 of No. 2 is extended by the stroke S4 (in the direction of arrow A1), and is fitted into the groove 27 of the work holder 23 of the workstation 21 facing the arm 36. Then, the arm support 35 is lifted up by the stroke S5 to forcibly pull out the work holder 23 from the hole 24 of the conveyor 25 (arrow A2), and the work holder 23 and the work W are opened. The rod 32 is contracted with the stroke S4 while being held by the frame 36 (direction of arrow A3).

Next, the main body 29 is moved in the direction of arrows A4 and A6 by 1
Rotate 80 °. During this rotation, the support 34 and the air
The Musaport 35 is rotated counterclockwise by 90 ° (shown in a state of being rotated 90 ° by a two-dot chain line at position P5 in FIG. 6).
For simplicity, the work W and work holder 32 are not shown. ) Then the work W is turned sideways. When the main body 29 has finished rotating in the direction of the arrow A6, the arm 36 and the work holder 23 are located near the second rotary table 19. The rod 32 again extends to the stroke S4 (direction of arrow A7), and the work holder 2 held by the arm 36
3. The work W is located immediately before the second rotary table 20 as shown in FIGS. That is, the center axis of the work holder 23 and the center of the hole 20 are aligned.

Next, the arm support 35 is a straw.
The pull stud 28 of the work holder 23 is inserted into the hole 20 by moving the work S5 (direction of arrow A8). Then, the rod 32 is contracted by the stroke S4, and the arm 36 is removed from the work holder 23 (direction of arrow A9). A work force is generated in the second rotary table 19 to make the work holder 23
Be sure to attach to the second rotary table 19. Then, after the arm support 35 moves again to the stroke S5 (direction of arrow A10), the main body 29 is rotated by 180 ° in the reverse direction (direction of arrow A11) to move the arm 36 to the work station.
I will return it to Option 21 side.

Next, referring to FIGS. 4 and 5, the first
The table 14 is moved to the tool 11 side, and the second table 15 is also moved forward from the final end position OM along the X-axis direction. That is, the first surface f 1 of the work W (see FIGS. 9 and 10).
(See reference) to face the tool 11. In addition, tool 11
Has already been set at a position where it can be moved in the Y-axis direction and machined to a predetermined position on the first surface f 1 of the work W.

The work W is formed on the first to fifth surfaces f as follows.
1 to f 5 are processed. (See FIGS. 3 and 10) The first table 14 is further moved to the tool 11 side to
Drill surface f 1 to a specified depth. Next after processing first
Move the table 14 backward. Second Rotor Table 1
9 in the clockwise direction by 90 ° and the second surface f 2
Index. The first table 14 is again moved forward to the tool 11 side, and the second surface f 2 is drilled to a predetermined depth. In the same manner as described below, the third surface f 3 and the fourth surface f 4 are drilled.

When the machining of the first to fourth surfaces f1 to f4 is completed, the first table 14 is moved backward.

Next, the first rotary table 16 is indexed 90 ° counterclockwise about the rotation axis RO, and the work W is turned from the state of FIG. 10 to the state of FIG. The fifth surface f 5 faces the tool 11. And again the first
The bull 14 is moved forward and the fifth surface f 5 is drilled to a predetermined depth. As described above, once the work W is attached to the second rotary table 19, the first to fifth surfaces of the work W can be machined.

When the processing is completed, the first and second tables 1
4 and 15 are moved to the above-mentioned initial setting position (see FIGS. 4 and 5).
Refer back).

Next, the procedure for unloading the machined work W to the work station 21 will be described with reference to FIGS. 6 and 11.

As described above, the arm 36 has the arrow A11.
It rotates 180 ° in the direction and returns to the workstation 21 side. First, the main body 29 rotates 180 ° counterclockwise along the arrow B1 direction. Then, the arm support 35 is moved to the second rotary table 19 side by the stroke S5 (in the direction of arrow B2). Further, attach the rod 32 to the arrow B3.
Extend in the direction.

As a result, the arm 36 is attached to the work holder 2
It fits in the groove 27 of 3. In this state, the second rotorlite
Stop the generation of the mounting force of the bull 19. Furthermore, arm support
When the stroke 35 is moved to the stroke S5 (in the direction of arrow B4), the work holder 23 comes out of the second rotary table 19 and becomes the state shown in FIG.

Thereafter, the rod 32 is contracted in the direction of arrow B5, and the main body 29 is rotated clockwise by 180 ° along the arrows B6 and B8. However, during this rotation,
At position P7, the support 34 and the arm support 35 rotate 90 ° clockwise with respect to the plate 34, and the work W
Returns to the upright state.

The rod 32 again extends in the direction of arrow B9 to position the work holder 23 above the original hole 24 of the conveyor 25.

Next, the arm support 35 is stroked.
When the work S5 is lowered (arrow B10 direction), the work holder 23
Pull studs 28 are inserted into the holes 24. After that, the rod 32 is contracted in the direction of arrow B11, and the arm 36 is removed from the work holder 23.

In this way, one work W
The processing, processing and unloading are completed.

The work W to be processed next is the conveyor 2
By sending 5 in the direction of arrow H in FIG. 6, it is sent to a position facing the arm 36. The work W sent in sequence is
It is sequentially loaded onto the second rotary table 19 by the above-mentioned procedure, and after processing, it is unloaded from the second rotary table 19 and returned to the workstation 21.

By the way, the first to fifth surfaces f 1 to f 1 of the work W
In addition to f 5, the corner C of the work W1 may be processed.
In this case, for example, as shown in FIG. 12, the second rotor table 19 is indexed so that the first surface f 1 faces the tool 11. In addition, the second Rotarian
The bull 19 is indexed, for example, by 45 ° clockwise so that the corner C faces the tool 11. And work W1
If the tool is moved to the tool 11 side, the corner C can be drilled.

By the way, the present invention is not limited to the above embodiment. For example, the longitudinal direction of the bed may be a direction orthogonal to the axial direction of the spindle.

The disk 26 is made of a permanent magnet,
For example, an iron work W may be mounted on the disk 26.

[0051]

As described above, according to the present invention, 5-axis controlled machining can be performed fully automatically. For example,
Even if the work has a columnar shape with a quadrangular cross section (a rectangular parallelepiped), the work can be easily machined on five sides by mounting the work once.

In the 5-axis control system, the work can be automatically exchanged for the second rotary table by the work supplying means. Therefore, it is possible to perform unmanned multi-face machining of the 5-axis control system. Thereby, the productivity of the work can be improved.

Further, the work holder automatically mounts the work holder in the taper-shaped hole by using the work supply means, and
5-axis control machining is possible with the holder attached to the taper hole.

Moreover, since the work is automatically loaded to the predetermined initial setting position, each surface of the work is automatically accurately positioned in the rotating direction of the second rotary table. be able to.

By rotating the work from the initial setting position by a predetermined angle, each surface of the work can be faced to the tool in order and then machined. Further, by appropriately setting the angle of rotation, the corner of the work can be made to face the tool and the corner can be machined.

Therefore, it is possible to accurately and efficiently perform the multi-face machining of the work.

[Brief description of drawings]

FIG. 1 is a front view showing an apparatus for carrying out a multi-face machining method according to a preferred embodiment of the present invention.

2 is a plan view of the multi-face machining apparatus shown in FIG. 1. FIG.

FIG. 3 is a perspective view showing a main part of the multi-face machining apparatus shown in FIG.

[Fig. 4] Spindle, first rotary table and wire
It is a front view showing the positional relationship of the feeding means.

[Fig. 5] Spindle, first rotary table and wire
It is a plan view showing the positional relationship of the feeding means.

FIG. 6 is a work supply means and first and second rotor liters.
It is a perspective view showing a bull.

FIG. 7 is a plan view of a work holder and a disk.

FIG. 8 is a partially cutaway front view showing a work holder and a disk.

FIG. 9 is a perspective view showing a work.

FIG. 10 is a view showing a state in which the first surface of the work is to be processed.

[Fig. 11] Walk from the second rotary table to unloading
It is a figure which shows the procedure to do.

FIG. 12 is a view for explaining processing of a corner portion of a work.

FIG. 13 is a view for explaining processing of a corner portion of a work.

[Explanation of symbols]

 1 main body 3 NC device 4 work supply means 9 spindle 10 bed 11 tool 14 first table 15 second table 16 first rotary table 19 second rotary table 20 hole 21 work Cushion 22 Automatic work changer 23 Work holder 36 Arm

Claims (1)

[Claims] 1. A multi-axis machining method using a 5-axis control method,
With the work held by the work holder,
And a step of automatically loading the taper-shaped hole of the second rotary table to a predetermined initial setting position by the supply means and a second angle from the initial setting position by a predetermined angle. The process in which the work is rotated by the tally table, the process in which the work is processed by the tool provided on the spindle, and the processed work are carried out by the work supply means together with the work holder by the work supply means. A multi-face processing method comprising a step of unloading from a rotary table.