JPH0871882A - Stage feed device - Google Patents

Abstract

PURPOSE: To process the workpieces symmetrically with respect to a plane by moving both plate processing stages in opposite directions at the same speed and at the same time. CONSTITUTION: When a motor 1 is rotated in a fixed direction, for example, a first slide part 5 of a first plate processing stage 7 engaged with a left screw part 3a is moved on a rotary shaft 3 to the right, while a second slide part 6 of a second plate processing state 8 engaged with a right screw part 3b is moved to the left. In this case, both the moving speeds are the same. After both the plate processing stages are moved and stopped, workpieces 9, 10 placed on both the plate processing stages 7, 8 are fed and cut into the same shape at the same speed and in the same order by respective tools 11a, 12a of both processing machines 11, 12. Thus, the workpieces 9, 10 loaded on both the plate processing states 7, 8 are processed symmetrically with respect to a plane passing through a support bearing 4a and perpendicular to the rotary shaft 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stage feed device for mounting a workpiece such as a plate. More specifically, the present invention relates to a stage feed device suitable for processing two workpieces in plane symmetry.

[0002]

2. Description of the Related Art When a projection is formed on a thin plate 91 by pressing, as shown in FIG. 6, the thin plate 91 is sandwiched between a punch plate 92 and a die plate 93 and punched to form a projection. That is, the holes 92a, 92 of the punch plate 92
Pins 92d, 92e, 92f implanted in b, 92c
However, it is punched so as to enter the holes 93a, 93b, 93c of the die plate 93, and projections are formed on the thin plate 91. At this time, the holes 92a, 92b, 92c of the punch plate 92 are formed.
Has a smaller diameter than the holes 93a, 93b, and 93c of the die plate 93, but the hole position is plane-symmetrical with the thin plate 91 in between at the time of pressing as shown in FIG. When lined up with the press side (use side) facing up like 7,
It is arranged in plane symmetry, that is, mirror symmetry, with a plane perpendicular to FIG. 7 including the alternate long and short dash line 99-99 between the plates 92 and 93 being interposed.

In producing such punch plate 92 and die plate 93, a method of manufacturing the punch plate 92 and the die plate 93 individually and sequentially by using a machining center or the like is adopted. Further, sometimes, as shown in FIG. 8, the punch plate 92 and the die plate 93 are fixed to the table 94, the table 94 is driven three-dimensionally, and the punch plate 92 is fixed by the two fixed drills 95 and 96.
A method of simultaneously making a hole in the die plate 93 is also adopted.

[0004]

However, when punching the punch plate 92 and the die plate 93 by using a machining center or the like, a positioning error at the time of processing is added, and the processing accuracy deteriorates. In addition, the productivity is half that of the one in which the punch plate 92 and the die plate 93 are simultaneously processed. When the punch plate 92 and the die plate 93 are fixed to the table 94 and punching is performed at the same time, the surfaces used for punching the thin plate 91 are, for example, the front surface 92a of the punch plate 92 and the back surface 93b of the die plate 93. Therefore, the front surface 92a, which is the surface to be processed by the drill 96, and the back surface 93b, which is not the drill 95 side, are used surfaces. For this reason, the positional deviation of the bending of the drills 95 and 96 that occurs during processing occurs between the punch plate 92 and the die plate 93, resulting in the positional deviation of the holes, which deteriorates the processing accuracy.

It is an object of the present invention to provide a stage feed device capable of accurately processing a work piece that is arranged and used in plane symmetry.

[0006]

In order to achieve such an object, the invention of claim 1 has a motor capable of forward and reverse rotation, a rotary shaft, and a transmission means for transmitting the rotational force of the motor to the rotary shaft. A left slide part and a right screw part which are opposite to each other are formed on the rotary shaft, and are engaged with the right screw part and are movable in the axial direction on the rotary shaft and cannot be rotated. A second slide base portion that is engaged with the screw portion and is axially movable on the rotation axis and is non-rotatable. The first slide base portion includes the first plate processing stage and the second slide base portion. The second plate processing stage is fixed to the plate, and both plate processing stages are simultaneously moved by the motor in opposite directions at the same speed. According to a second aspect of the present invention, the stage feeding device according to the first aspect is placed on a table which feeds in another direction orthogonal to the feeding direction of the stage feeding device, and the table is mounted on the rotary shaft with respect to each other. By driving in two vertical directions, mirror-symmetrical feed is given to the workpiece on the stage feed device.

[0007]

Therefore, in the stage feed device according to the first aspect, when the rotating shaft is rotated by the motor capable of rotating in the forward and reverse directions, the first slide base engaged with the left screw part and the right screw part which are opposite to each other. Part and the second slide base part move on the rotation shaft in the axial direction in opposite directions and at the same speed. Then, since the first plate processing stage and the second plate processing stage fixed to them can be simultaneously moved in opposite axial directions and at the same speed, both plates are coupled with the movement of the tool of the processing machine. The workpiece placed on the processing stage is processed in plane symmetry. Further, in the stage feeding device of claim 2, the stage feeding device of claim 1 is placed on a table for feeding in another direction orthogonal to the feeding direction of the stage feeding device, and the table is mounted on the rotary shaft. Since the mirror-symmetric feed is given to the workpiece on the stage feed device by driving in two directions that are perpendicular to each other, even if the tool of the processing machine is fixed, it is placed on both plate processing stages. The workpiece to be processed is machined in a plane symmetry, that is, in a mirror symmetry not only in the rotation axis direction but also in other directions.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows the principle of the present invention. The rotation of the motor 1 capable of rotating in the forward and reverse directions is transmitted to the rotating shaft 3 via the transmitting means 2. The rotating shaft 3 is provided with a left screw portion 3a and a right screw portion 3b which have the same diameter and the same pitch but are opposite to each other. The rotating shaft 3 is supported by a support bearing 4a at the center and bearings 4b and 4c at both ends thereof.

The first slide base portion 5 engaged with the left screw portion 3a and the second slide base portion 6 engaged with the right screw portion 3b are both in the axial direction as the rotary shaft 3 rotates. (X in Figure 1
Direction) and cannot rotate. In addition, the first slide stage 5 has a first plate processing stage 7
However, the second plate processing stages 8 are fixed to the second slide base portions 6, respectively. In this example,
A die plate is mounted as a workpiece 9 on the first plate processing stage 7, and a punch plate is mounted as a workpiece 10 on the second plate processing stage 8. While the above-described members such as the motor 1 are placed on the table 13, the table 13 receives the driving force of the motor 1 through another route 14 and is perpendicular to the rotary shaft 3 (Y in FIG. 1).
Direction) is freely movable. If necessary, the table 13 may be movable in the vertical direction (Z direction in FIG. 1) with respect to the previous two directions by the motor 1 or another motor.

Then, the first plate processing stage 7
A processing machine 11 having a tool 11a such as a drill at its tip is fixedly arranged in proximity to the first plate processing stage 7 for processing the workpiece 9 placed on the second plate processing stage. A processing machine 1 having a tool 12a such as a drill at its tip for processing a workpiece 10 placed on
2 is fixedly arranged in proximity to the second plate processing stage 8. The tools 11a and 12a can be fed by cutting in the vertical direction in FIG.

In the apparatus thus constructed, when the motor 1 rotates in a certain direction, for example, the first slide base portion 5 engaged with the left screw portion 3a moves rightward on the rotary shaft 3 in FIG. On the other hand, the second slide base portion 6 engaged with the right screw portion 3b moves to the left. Both moving speeds are the same. Then, after the movement is stopped, the workpieces 9 and 10 placed on the plate processing stages 7 and 8 are cut and fed by the tools 11a and 12a of the processing machines 11 and 12 into the same shape at the same speed and in the same order. Is processed.

In this manner, both plate processing stages 7 and 8 can be simultaneously moved about the support bearing 4a in the opposite axial directions and at the same speed, so that they are mounted on both plate processing stages 7 and 8. The workpieces 9 and 10 placed on the rotary shaft 3 pass through the support bearing 4a.
Processed symmetrically with respect to a plane perpendicular to. Also, the motor 1
When is rotated in the opposite direction, the first slide base portion 5 engaged with the left screw portion 3a moves leftward in FIG. 1 on the rotating shaft 3, while being engaged with the right screw portion 3b. The second slide base portion 6 moves rightward at the same speed. As a result, both plate processing stages 7 and 8 are simultaneously moved in opposite axial directions and at the same speed, so that the workpieces 9 and 10 placed on both plate processing stages 7 and 8 are
As in the previous case, plane-symmetric processing is possible.

Since the table 13 receives the driving force of the motor 1 and is movable in the vertical direction (Y direction in FIG. 1) with respect to the rotary shaft 3, the support bearing 4a is also used for the processing in the Y direction. Are processed symmetrically with respect to a plane passing through and perpendicular to the rotation axis 3. When the table 13 can be moved in the vertical direction (Z direction in FIG. 1) with respect to the previous two directions by the motor 1 or another motor, in addition to the cutting feed in the Z direction by each tool 11a, 12a, Z in a wide range
It is possible to move in the direction.

FIG. 2 shows an embodiment embodying the above principle.
~ It demonstrates based on FIG. The same reference numerals as in FIG.
The same member is shown.

The rotation of the motor 1 capable of rotating in the normal and reverse directions is transmitted to the rotating shaft 3 via the transmitting means 2. The rotary shaft 3 has left screw portions 3a having the same diameter and the same pitch but opposite directions.
And a right-hand threaded portion 3b are provided. The rotating shaft 3 is supported by a support bearing 4a at the center and bearings 4b and 4c at both ends thereof.

The first slide base portion 5 engaged with the left screw portion 3a and the second slide base portion 6 engaged with the right screw portion 3b are both in the axial direction as the rotary shaft 3 rotates. It is freely movable and cannot be rotated. A first plate processing stage 7 is fixed to the first slide base 5, and a second plate processing stage 8 is fixed to the second slide base 6.

In this example, the first cover 15a fixed to the first plate processing stage 7 and the second plate processing stage 8 are held in order to maintain the synchronization and the positional relationship between the two stages 7 and 8. Second cover 15b fixed to
And an intermediate cover 15c arranged between the covers 15a and 15b are slidably engaged with each other. An oil pan 16 on which a die plate as a workpiece 9 is placed is placed on the first plate processing stage 7 to prevent scattering of oil used during processing. The oil pan 17 on which the punch plate as the workpiece 10 is placed is also placed on the second plate processing stage 8.
Prevents the oil used during processing from splashing.

While the above-described members such as the motor 1 are mounted on the table 13, the table 13 receives the driving force of the motor 1 through another route and is perpendicular to the rotary shaft 3 (Y in FIG. 4).
Direction) is freely movable. If necessary, the table 13 may be movable in the vertical direction (Z direction in FIG. 1) with respect to the previous two directions by the motor 1 or another motor. In addition, in order to maintain the synchronism and the positional relationship between the two stages 7 and 8 when they are movable in the Y direction in FIG. 4, a plurality of covers 18 are fixed to both sides of the table 13 and are engaged with each other. Further, the overrun switches 19a and 19b for detecting overrun of the first slide base portion 5 and the second slide base portion 6 and the position detection switches 20a and 20b for detecting the position in the X-axis direction are provided on the table 13, respectively.
It is fixed to. Since the first slide base portion 5 and the second slide base portion 6 move integrally, both of the two overrun switches 19a and 19b are provided only on the first slide base portion 5 side. On the other hand, the position detection switch 20a,
20b is provided for each of the first slide base portion 5 and the second slide base portion 6 in order to improve accuracy.

Then, the first plate processing stage 7
A processing machine 11 having a tool 11a such as a drill at its tip is fixedly arranged in proximity to the first plate processing stage 7 for processing the workpiece 9 placed on the second plate processing stage. A processing machine 1 having a tool 12a such as a drill at its tip for processing a workpiece 10 placed on
2 is fixedly arranged in proximity to the second plate processing stage 8. The tools 11a and 12a can be fed by cutting in the vertical direction in FIG.

In the apparatus thus constructed, when the motor 1 rotates in a fixed direction, for example, the first slide base portion 5 engaged with the left screw portion 3a moves rightward on the rotary shaft 3 in FIG. On the other hand, the second slide base portion 6 engaged with the right screw portion 3b moves to the left. Both moving speeds are the same. Then, after the movement is stopped, the workpieces 9 and 10 placed on the plate processing stages 7 and 8 are cut and fed by the tools 11a and 12a of the processing machines 11 and 12 into the same shape at the same speed and in the same order. Is processed. The relationship between the first cover 15a, the second cover 15b, and the intermediate cover 15c when the plate processing stages 7 and 8 are closest to each other is shown in FIG.
The approach situation of No. 7 is shown by the one-dot chain line and arrow in FIG.

In this way, both plate processing stages 7 and 8 are simultaneously moved in the opposite axial directions and at the same speed about the support bearing 4a, so that they are mounted on both plate processing stages 7 and 8. The workpieces 9 and 10 placed on the rotary shaft 3 pass through the support bearing 4a.
Processed symmetrically with respect to a plane perpendicular to. Also, the motor 1
When is rotated in the opposite direction, the first slide base portion 5 engaged with the left screw portion 3a moves leftward in FIG. 1 on the rotating shaft 3, while being engaged with the right screw portion 3b. The second slide base portion 6 moves rightward at the same speed. As a result, both plate processing stages 7 and 8 are simultaneously moved in opposite axial directions and at the same speed, so that the workpieces 9 and 10 placed on both plate processing stages 7 and 8 are
As in the previous case, plane-symmetric processing is possible. First cover 15 when both plate processing stages 7 and 8 are farthest away
The relationship among a, the second cover 15b, and the intermediate cover 15c is shown in FIG.

Further, since the table 13 receives the driving force of the motor 1 and is movable in the direction perpendicular to the rotary shaft 3 (Y direction in FIG. 4), the support bearing 4a is also used for machining in the Y direction. Are processed symmetrically with respect to a plane passing through and perpendicular to the rotation axis 3. The position and direction indicated by the alternate long and short dash line and arrow in FIG. 4 indicate the position and direction most moved in the Y direction, that is, the position and direction most moved to both processing machines 11 and 12. Further, when the table 13 can be moved in the vertical direction (Z direction in FIG. 4) with respect to the previous two directions by the motor 1 or another motor, in addition to the Z-direction cutting feed by each tool 11a, 12a, It is possible to employ a simple and stable processing machine that can move in the Z direction in a wide range and does not have a function such as cutting feed in the Z direction.

The above-described embodiments are examples of preferred embodiments of the present invention, but the present invention is not limited thereto and various modifications can be made without departing from the scope of the present invention. For example, the workpiece may be various members such as a member having a spherical shape or an uneven portion instead of a plate such as a die plate. In addition, both processing machines 11, 12
The movements of the respective tools 11a and 12a are not exactly the same, but the movements may be different. However, in this case, both workpieces lose their plane symmetry, which deviates from the main object of the present invention, but there is a sufficient effect in terms of the processing position accuracy on the usage surface of both workpieces.

The motor 1 is preferably a motor capable of rotating in the forward and reverse directions, but a motor which rotates in one direction may be adopted and the transmission means 2 may switch the rotation direction of the rotating shaft. Further, both screw parts 3a and 3b may be separate members from the rotary shaft 3 and may be connected by a connecting means. Furthermore, Table 1
The driving of 3 in the Y direction may be performed by using another motor or another driving means instead of the motor 1.

[0026]

As is apparent from the above description, in the stage feeding device according to the first aspect, when the rotating shaft is rotated by the motor capable of rotating in the forward and reverse directions, the left screw portion and the right screw portion which are opposite to each other are formed. The first slide base portion and the second slide base portion that are engaged with each other move on the rotation shaft in the axial direction in opposite directions and at the same speed. Then, since the first plate processing stage and the second plate processing stage on which the workpiece is placed are simultaneously moved in opposite directions in the axial direction and at the same speed, that is, they are moved in line symmetry. With the movement of the tool of the processing machine, it is possible to machine the workpieces placed on both plate machining stages in plane symmetry. As a result, it becomes possible to accurately process a workpiece that is arranged symmetrically and used.

Further, in the stage feeding device of claim 2,
The stage feed device according to claim 1 is placed on a table that feeds in another direction orthogonal to the feed direction of the stage feed device, and the table is driven in two directions perpendicular to the rotation axis. Since the mirror-symmetric feed is given to the workpiece on the stage feed device, even if the movement of the tool of the processing machine is fixed, the workpiece placed on both plate processing stages will be in the rotation axis direction only. Of course, it is possible to perform plane symmetry, that is, mirror symmetry in other directions as well, and it is possible to accurately process many kinds of workpieces that are arranged and used in plane symmetry.

[Brief description of drawings]

FIG. 1 is a principle view of a stage feeding device of the present invention.

FIG. 2 is a view showing the periphery of a rotary shaft which is one of the main constituent parts of an embodiment of the present invention, wherein the upper part of the line 31-31 is a cross-sectional view and the lower part is a view with each cover removed.

FIG. 3 is a main configuration plan view of an embodiment of the present invention.

FIG. 4 is a side view of the main configuration of the embodiment of the present invention, in which the rotary shaft portion is a partial cross section taken along line 32-32.

FIG. 5 is a first cover, a second cover, used in the present invention.
FIG. 3A is a diagram showing the engagement relationship and movement of the intermediate covers, FIG. 3A showing a state where the covers are closest to each other, and FIG. 3B a state showing the covers being farthest from each other.

FIG. 6 is a diagram showing a positional relationship between a die plate and a punch plate when a protrusion is attached to a thin plate.

FIG. 7 is a diagram showing plane symmetry between a die plate and a punch plate.

FIG. 8 is a diagram for explaining a conventional processing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 Transmission means 3 Rotating shaft 3a Left screw part 3b Right screw part 5 1st slide stand part 6 2nd slide stand part 7 1st plate processing stage 8 2nd plate processing stage

Claims (2)

[Claims] 1. A left-threaded portion and a right-handed screw which are opposite to each other on the rotating shaft, and each of which has a motor capable of rotating in the forward and reverse directions, a rotating shaft, and a transmitting means for transmitting a rotating force of the motor to the rotating shaft. And a first slide base portion that is engaged with the right-hand screw portion and is axially movable on the rotation shaft and is non-rotatable, and engages with the left-hand screw portion and rotates on the rotation shaft. It has a second slide base that can move in any direction and cannot rotate, and a first plate processing stage is fixed to the first slide base and a second plate processing stage is fixed to the second slide base. Then, the stage feed device is characterized in that the both plate processing stages are simultaneously moved in the opposite directions and at the same speed by the motor. 2. The stage feed device according to claim 1 is mounted on a table for feeding in another direction orthogonal to the feed direction of the stage feed device, and the table is perpendicular to the rotary shaft. A stage feed device, which is driven in a direction to give a mirror-symmetric feed to a workpiece on the stage feed device.