JP2023013779A - Scroll processing machine for processing scroll-shaped work used for compressor in air conditioner, and method for processing scroll-shaped work - Google Patents

Abstract

To double a production volume of a scroll-shaped work without any significant cost increase while keeping accuracy.SOLUTION: A method for processing a scroll-shaped work includes a step of scrolling a first work 30 while synchronizing an X1 shaft motor, a Y1 shaft motor and a C1 shaft motor with one another, and scrolling a second work 30 so as to be the same as the first work 30 while synchronizing an X2 shaft motor, a Y2 shaft motor and a C2 shaft motor with the movements of the X1 shaft motor the Y1 shaft motor and the C1 shaft motor.SELECTED DRAWING: Figure 1

Description

The present invention relates to a scroll processing machine and a method for processing a scroll-shaped work.

Conventionally, as in Patent Document 1, the center portion including the boundary point between the inner wall surface and the outer wall surface of the scroll-shaped wall is formed into a shape including a shape other than an involute curve, and the center portion and the outer end of the scroll-shaped wall are formed. There is known a method of machining a scroll-shaped workpiece in which a portion other than the involute curved portion is an involute curved portion, and the inner wall surface and the outer wall surface of the involute curved portion are formed in an involute curve shape with the same circle as the base circle.

Further, as in Patent Document 2, a plurality of independent work table devices for detachably supporting a plurality of scroll-shaped works having spiral wraps standing upright on an end plate are provided, and a turning device for turning and moving the work base devices and a machining tool are provided. A scroll-shaped machining apparatus is known that includes a plurality of tool rests with rotatably supporting tool spindles, and a main body bed on which a swivel device and a plurality of tool rests are mounted. In this processing apparatus, at least one of the plurality of tool stands is clamped by a tool spindle on which at least two machining tools are mounted, and faces the tool stand and is clamped on the work table device. It is configured to perform scroll lap of two workpieces and rough machining at the same time.

Japanese Patent No. 3029228 Japanese Patent No. 3833386

A scroll processing machine such as that disclosed in Patent Document 1 processes workpieces one by one with one machine, and can only produce 15 to 60 pieces per hour, which poses a problem in terms of mass production. In addition, there is a problem that the production cost per piece is high because an expensive special-purpose machine is used because of the high-precision production equipment.

In the processing apparatus of Patent Document 2, the spindles of a plurality of tools are attached to one tool table, and a plurality of works are attached to a single work table device, so that the plurality of tools and the plurality of works cannot move independently. , tool mounting error, spindle elongation error, tool diameter error, etc.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to double the production volume of scroll-shaped workpieces while maintaining accuracy without a significant increase in cost.

In order to achieve the above object, according to the present invention, two scroll-shaped works are machined simultaneously by synchronizing independently drivable tools and works on a single machine.

Specifically, in the first invention,
bed and
an X1-axis table movable on the bed along the X1-axis by an X1-axis actuator;
an X2-axis table movable on the bed along an X2-axis parallel to the X1-axis by an X2-axis actuator;
a Z1-axis table movable on the X1-axis table in a Z1-axis perpendicular to the X1-axis by a Z1-axis actuator;
a Z2-axis table movable on the X2-axis table in a Z2-axis perpendicular to the X2-axis by a Z2-axis actuator;
a rotatable S1 axis provided on the Z1 axis table, extending along the Z1 axis, and on which a first tool is mounted;
a rotatable S2 axis provided on the Z2 axis table, extending along the Z2 axis, and having a second tool mounted thereon;
a first column provided at a position facing the X1-axis table;
a second column provided at a position facing the X2-axis table;
a Y1-axis table provided on the first column and movable along a Y1-axis perpendicular to the X1-axis and the Z1-axis by a Y1-axis actuator;
a Y2-axis table provided on the second column and movable along a Y2-axis perpendicular to the X2-axis and the Z2-axis by a Y2-axis actuator;
a C1 axis provided on the Y1 axis table, extending parallel to the S1 axis, and on which a first workpiece is rotatably mounted by a C1 axis motor;
a C2 axis provided on the Y2 axis table, extending parallel to the S2 axis, to which a second workpiece is rotatably mounted by a C2 axis motor;
The X1-axis actuator, the Y1-axis actuator, and the C1-axis motor are synchronized to scroll the first workpiece, and the X2-axis actuator, the Y2-axis actuator, and the C2-axis motor are synchronized with the X1-axis actuator and the C1-axis motor. A control device is provided for scrolling the second work so as to be the same as the first work while synchronizing with the movements of the Y1-axis actuator and the C1-axis motor.

According to the above configuration, the pair of processing devices can be arranged side by side, which saves space and facilitates control. Therefore, two scroll-shaped works can be processed simultaneously with high precision by using a conventional program for processing scroll-shaped works. Moreover, by synchronizing the scrolls, the vibration during machining occurs at the same point, so that scroll machining can be performed with higher accuracy.

In the second invention, in the first invention,
While removing and replacing the first work fixed to the C1 axis, the control device removes and replaces the second tool of the S2 axis and removes the second work fixed to the C2 axis. During replacement, the first tool of the S1 axis is detached and replaced.

According to the above configuration, the first tool and the first work and the second tool and the second work are exchanged at the same time by mutually shifting the timing, whereby the tool change time is reduced and the productivity is high. can be ensured.

In a third invention, in the first or second invention,
The control device adjusts the mounting error of the first tool with respect to the S1 axis and the elongation error of the first spindle to which the first tool is fixed by correcting the Z1 axis with the Z1 axis actuator. The mounting error of the second tool with respect to the S2 axis and the elongation error of the second spindle to which the second tool is fixed are adjusted by correcting the Z2 axis with the Z2 axis actuator.

According to the above configuration, the installation error of the first tool and the second tool and the extension error of the spindle can be independently adjusted in the Z1-axis or Z2-axis direction, so that the scroll-shaped work can be performed with higher accuracy.

In a fourth invention, in any one of the first to third inventions,
The control device adjusts the outer diameter error of the first tool by correcting the X1 axis with the X1 axis actuator, and adjusts the outer diameter error of the second tool with the X2 axis actuator. It is configured to adjust by correcting the axis.

According to the above configuration, even if the outer diameters of the first tool and the second tool are greatly different due to re-grinding, the X1-axis and the X2-axis can be adjusted independently. Accurate scroll processing can be performed.

A method for processing a scroll-shaped work according to a fifth aspect of the invention includes:
bed and
an X1-axis table movable on the bed along the X1-axis by an X1-axis actuator;
an X2-axis table movable on the bed along an X2-axis parallel to the X1-axis by an X2-axis actuator;
a Z1-axis table movable on the X1-axis table along a Z1-axis perpendicular to the X1-axis;
a Z2-axis table movable on the X2-axis table along a Z2-axis perpendicular to the X2-axis;
a rotatable S1 axis provided on the Z1 axis table, extending along the Z1 axis, and on which a first tool is mounted;
a rotatable S2 axis provided on the Z2 axis table, extending along the Z2 axis, and having a second tool mounted thereon;
a first column provided at a position facing the X1-axis table;
a second column provided at a position facing the X2-axis table;
a Y1-axis table provided on the first column and movable along a Y1-axis perpendicular to the X1-axis and the Z1-axis by a Y1-axis actuator;
a Y2-axis table provided on the second column and movable along a Y2-axis perpendicular to the X2-axis and the Z2-axis by a Y2-axis actuator;
a C1 axis provided on the Y1 axis table, extending parallel to the S1 axis, and on which a first workpiece is rotatably mounted by a C1 axis motor;
a C2-axis provided on the Y2-axis table, extending parallel to the S2-axis, and having a second workpiece rotatably mounted by a C2-axis motor;
The X1-axis actuator, the Y1-axis actuator, and the C1-axis motor are synchronized to scroll the first workpiece, and the X2-axis actuator, the Y2-axis actuator, and the C2-axis motor are synchronized with the X1-axis actuator and the C1-axis motor. The second work is scroll-machined so as to be the same as the first work while synchronizing with the movements of the Y1-axis actuator and the C1-axis motor.

According to the above configuration, the pair of processing devices can be arranged side by side, which saves space and facilitates control. Further, by using a conventional program for machining scroll-shaped works, two scroll-shaped works can be simultaneously machined with high accuracy. Moreover, by synchronizing the scrolls, the vibration during machining occurs at the same point, so that scroll machining can be performed with higher accuracy.

As described above, according to the present invention, the production volume of scroll-shaped workpieces can be doubled while maintaining accuracy without a significant increase in cost.

1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention; FIG. It is a front view which shows an example of the scroll-shaped workpiece processed by the said processing apparatus. It is a block diagram which shows the functional structure of the NC control device with which the said processing apparatus is equipped. (a), (b), and (c) are front views showing how the inner wall surface of the involute curved portion of the scroll-shaped workpiece is machined. (a) is a front view showing how the central portion of the scroll-shaped work is machined, and (b) and (c) are front views showing how the outer wall surface of the involute curved portion of the scroll-like work is machined. be. FIG. 4 is a front view showing how the vicinity of the central portion of the scroll-shaped workpiece is machined. FIG. 4 is a front view showing how the vicinity of the central portion of the scroll-shaped workpiece is machined. FIG. 4 is a front view showing how the central portion of the scroll-shaped workpiece is machined; FIG. 4 is a front view showing how the central portion of the scroll-shaped workpiece is machined; FIG. 4 is a front view showing how the central portion of the scroll-shaped workpiece is machined; FIG. 4 is a front view showing how the central portion of the scroll-shaped workpiece is machined; FIG. 4 is a front view showing how the vicinity of the central portion of the scroll-shaped workpiece is machined. FIG. 4 is a front view showing how the vicinity of the central portion of the scroll-shaped workpiece is machined. FIG. 4 is a front view showing how the vicinity of the central portion of the scroll-shaped workpiece is machined. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, where (a) shows the start of C1 axis loading and S2 axis ATC, and (b) shows unclamping of C1 and S2 axes. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, where (a) shows how the S2 axis is moved and the hand chuck is moved in the W-axis direction, and (b) is a tool stocker for the S2 axis. shows how to adjust the rotation angle of . 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, in which (a) shows how a workpiece is unclamped from a hand chuck, the C1 axis clamps it, and the S2 axis clamps another second tool; , (b) shows a state in which the loading of the C1 axis is completed and the attachment of the second tool of the S2 axis is completed. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, where (a) shows how C2 axis loading and S1 axis ATC are started, and (b) shows unclamping of C2 and S1 axes. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the scroll processing machine which concerns on embodiment of this invention, (a) shows a mode that a rotary table is moved to W-axis direction, (b) adjusts the rotation angle of the tool stocker for S1 axes. show the situation. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, in which (a) shows how a workpiece is unclamped from a hand chuck, the C2 axis clamps it, and the S1 axis clamps another first tool; , (b) shows a state in which loading of the C2 axis is completed and mounting of the first tool of the S1 axis is completed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention; Fig. 3 shows a state in which the tool and the second tool are synchronized; BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the scroll processing machine which concerns on embodiment of this invention, (a) shows a mode that ATC of two axes is started simultaneously, (b) shows unclamping the 1st tool from S1 axis|shaft, S2 axis|shaft. 2 shows the unclamping of the second tool from . FIG. 11 is a perspective view showing the scroll processing machine according to the embodiment of the present invention, in which (a) is a state in which the tools are removed from the S1 and S2 axes, the Z1 and Z2 axes are retracted, and the tool stocker is lowered; (b) shows how the pair of tool stockers are rotated. 1 is a perspective view showing a scroll processing machine according to an embodiment of the present invention, in which (a) shows how the S1 axis and S2 axis are returned in opposite directions, and (b) shows how the tool stocker is moved in the V1 axis direction and the V2 axis direction. It shows how the ATC of the S1 axis and the S2 axis is completed.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a scroll processing machine 1 according to an embodiment of the present invention. This scroll processing machine 1 is, for example, a cutting machine, and includes a bed 2 to be placed on a placement surface of a factory or the like. The scroll processing machine 1 may be another machining machine such as a grinding machine. The scroll processing machine 1 includes a controller 40 as a control section that controls the entire scroll processing machine 1 . This controller 40 is composed of, for example, a microcomputer.

The scroll processing machine 1 has a gantry loader 20 above the bed 2 for exchanging a plurality of works 30 . This gantry loader 20 comprises, for example, four vertical support columns 21 and two horizontal running rails 22, on which one horizontal rail 23 is provided for horizontal movement. It is A lifting member 24 is provided on the horizontal rail 23 so as to be vertically movable. Although not shown, the actuator that moves the horizontal rail 23 and the lifting member 24 is not particularly limited, and is composed of, for example, an air cylinder, an electric motor, a hydraulic cylinder, or the like. With such a configuration, the lifting member 24 can move within a predetermined range on the bed 2 . A loader is composed of the support column 21, the running rail 22, the horizontal rail 23, the lifting member 24, and the actuator for driving them.

The elevating member 24 is provided with, for example, a rotatable rotary table 25 , and the rotary table 25 is provided with a plurality of hand chucks 26 .

A work stocker 27 is provided on the side of the bed 2 for placing unprocessed and processed works. The work stocker 27 may be shaped like a conveyor through which the work 30 is carried in and out.

The first tool 5 a and the second tool 5 b can be automatically exchanged from the tool stocker 28 under the control of the controller 40 .

In FIG. 1, a Y1-axis column 6a and a Y2-axis column 6b extending vertically are provided side by side on a bed 2 of a scroll processing machine 1. As shown in FIG. The Y1-axis table 7a can move up and down along the Y1-axis column 6a, that is, move along the Y1-axis direction, which is the vertical direction. A Y2-axis table 7b is mounted movably along the axial direction.

These Y1-axis table 7a and Y2-axis table 7b are respectively provided with work chucks 9a and 9b for detachably holding a work 30 as a scroll-shaped work, and are provided in the Y1-axis column 6a and Y2-axis column 6b, respectively. It is independently driven up and down by a ball screw mechanism and a Y1-axis motor 6c (Y1-axis actuator) and a Y2-axis motor 6d (Y2-axis actuator) shown only in FIG.

The first work chuck 9a is rotatable about the C1 axis, which is the first main axis, by a C1 axis motor 9c. It is rotatably provided at the center.

On the bed 2, an X1-axis table 3a and an X2-axis table 3a are slidably mounted along the X1-axis and X2-axis directions perpendicular to the C1-axis and the C2-axis. A table 3b is attached to each. As shown in FIG. 3, these X1-axis table 3a and X2-axis table 3b are moved in the X1-axis direction by an X1-axis motor 3c as an X1-axis actuator and in the X2-axis direction by an X2-axis motor 3d as an X2-axis actuator. They are slide-driven independently in each direction.

A rail 4c extending in the Z1-axis direction parallel to the C1-axis is installed on the X1-axis table 3a, and a rail 4d extending in the Z2-axis direction parallel to the C2-axis is installed on the X2-axis table 3b. A Z1-axis table 4a and a Z2-axis table 4b are mounted slidably along rails 4c and 4d. The Z1-axis table 4a is moved in the Z1-axis direction by a Z1-axis motor 4g as a Z1-axis actuator shown in FIG. 3, and the Z2-axis table 4b is moved in the Z2-axis direction by a Z2-axis motor 4h as a Z2-axis actuator shown in FIG. , they are independently slidably driven.

A first tool 5a is rotatably supported on the X1-axis table 3a so as to be rotatable about the S1-axis parallel to the Z1-axis. A second tool 5b is rotatably supported on the X2-axis table 3b so as to be rotatable about the S2-axis parallel to the Z2-axis. The S1-axis and the S2-axis are independently rotated by an S1-axis motor 4e and an S2-axis motor 4f, respectively.

In FIG. 1 and the like, the workpiece 30 is drawn in a columnar shape, but actually, as shown in FIG. 32 are projected. This scroll-like wall 32 consists of a central portion 34 and an involute curved portion 35 . The central portion 34 is formed in a predetermined area sandwiching the boundary point between the inner wall surface and the outer wall surface of the scroll-shaped wall 32, and is formed in a shape other than an involute curve such as an arc or a straight line. The involute curve portion 35 has an outer wall surface 35A and an inner wall surface 35B that sandwich the center portion 34. Both wall surfaces 35A and 35B are formed in an involute curve shape with the same circle as a base circle. Therefore, both the X1-axis and X2-axis directions and the Y1-axis and Y2-axis directions are set to coincide with the radial direction of the base circle.

The scroll processing machine 1 includes a controller (control section) 40 as shown in FIG. The controller 40 operates the Z1-axis motor 4g according to an NC program according to a scroll-shaped work machining method as disclosed in Patent Document 1, thereby positioning the first tool with respect to one work 30 (first work). At the same time, the scroll-shaped wall 32 of the workpiece 30 is machined by controlling the operation of the X1-axis motor 3c, the Y1-axis motor 6c, and the C1-axis motor 9c. Further, the controller 40 operates the Z2-axis motor 4h in synchronization with the NC program, thereby positioning the second tool with respect to the other work 30 (second work), and controlling the X2-axis motors 3d and Y2. The scroll-shaped wall 32 of the work 30 is machined by controlling the operation of the shaft motor 6d and the C2-axis motor 9d. The controller 40 has a data reading section 42, an interpolated data computing section 44, and a pulse distribution section 46 as functions related to this processing control.

The data reading unit 42 reads and stores NC data (machined shape of the scroll-shaped wall 32, feed speed, etc.) input from the outside. The interpolated data calculator 44 calculates and outputs interpolated data (details will be described later) for processing the scroll-like wall 32 based on the data read by the data reader 42 . The pulse distribution unit 46 distributes pulses from the interpolated data to the X1-axis, X2-axis, Y1-axis, Y2-axis, C1-axis, C2-axis, Z1-axis, Z2-axis, S1-axis, and S2-axis motors. It outputs to the shaft motor.

-Processing method of scroll wall-
Next, a method for processing the scroll-shaped wall 32 performed by this apparatus will be described.

First, as shown in FIG. 4(a), the centers of the first tool 5a and the second tool 5b are set in the negative direction (downward) with respect to the center of the base circle BC of the involute curve along the Y1-axis and Y2-axis directions, respectively. , the first tool 5a and the second tool 5b are moved from the right side of the drawing to the radially outer portion of the inner wall surface 35B of the involute curved portion 35 at the Y1-axis and Y2-axis positions. Touch each to the left. At this time, it is also possible to bring the outermost end of the scroll-shaped wall into contact with each predetermined position while processing the outermost end of the scroll-shaped wall by the movements of the X1-axis, the C1-axis and the X2-axis and the C2-axis. In this state, the normal direction of the inner wall surface 35B at the contact point between the first tool 5a and the second tool 5b and the inner wall surface 35B coincides with the X1-axis and X2-axis directions, respectively.

Next, from this state, the relative position of the first tool 5a in the Y1-axis direction and the relative position of the second tool 5b in the Y2-axis direction are not changed (that is, the Y1-axis motor 6c and the Y2-axis motor 6d are operated respectively). ), the workpieces 30 are rotated in the counterclockwise direction in the figure around the center of the base circle BC (around the C1 axis and the C2 axis), and one workpiece 30 is rotated by the radius decrease of the inner wall surface 35B accompanying this rotation. and the first tool 5a, the other workpiece 30, and the second tool 5b are relatively moved in the X1-axis and X2-axis directions, respectively. With this operation, as shown in FIGS. 4B and 4C, while maintaining the normal direction of the wall surface 35B at the contact point between the first tool 5a and the inner wall surface 35B in the X1-axis direction, 2 The inner wall surface 35B is machined from its radially outer portion toward its radially inner portion while maintaining the normal direction of the wall surface 35B at the contact point between the tool 5b and the inner wall surface 35B in the X2-axis direction. .

As such machining progresses, the first tool 5a and the second tool 5b reach the central portion 34 from the involute curved inner wall surface 35B, respectively, as shown in FIGS. 8 to 11, in addition to the relative movement in the X1-axis direction and the rotation around the C1-axis, the first tool 5a and one of the workpieces are also moved in the Y1-axis direction. 30 are moved relative to each other so that the normal direction of the wall surface of the central portion 34 at the point of contact between them is always kept in the X1-axis direction. In addition to the relative movement in the X2-axis direction and the rotation around the C2-axis, the second tool 5b and the other workpiece 30 are also relatively moved in the Y2-axis direction, and the normal line of the wall surface of the center portion 34 at the contact point between them Always keep the direction along the X2 axis.

When the center portion 34 is machined in this way, when the end point of the center portion 34 is reached, as shown in FIG. and in the Y2-axis direction in the opposite direction (that is, in the positive direction) to positions shifted by the base circle radius ro, respectively. From this state, as shown in FIGS. 4A to 4C, relative movement in the Y1-axis direction is not performed, and the first tool is moved only in the X1-axis direction while continuing to rotate the workpiece 30 around the C1-axis. 5a and the work 30 are moved relative to each other, and the second tool 5b and the work 30 are relatively moved only in the X2-axis direction while continuing to rotate the work 30 around the C2-axis without performing relative movement in the Y2-axis direction. 13, 14, and 5(b) and 5(c), the outer wall surface 35A of the involute curved portion 35 is continuously machined from the radially inner portion toward the radially outer portion. can do.

That is, in this method, regardless of the machining point on the scroll-shaped wall 32, the first tool 5a is brought into contact with this machining point from the same side all the time, and the normal direction of the wall surface at this contact point is always in the X1-axis direction. By rotating one work 30 while maintaining the involute, and by rotating the other work 30 while keeping the normal direction of the wall surface at this contact point in the X2-axis direction, the second tool 5b is brought into contact with the involute. It enables continuous processing from the curved inner wall surface 35B to the involute curved outer wall surface 35A via the central portion 34. FIG.

Although not shown in detail, in recent years, algebraic spirals have come to be used instead of conventional involute curves in order to reduce the size of the scroll-shaped work 30. Inside, it can be processed by moving in the Y direction in accordance with the gradually changing radius of the base circle.

-Operation of scroll processing machine-
Next, the overall operation of the scroll processing machine 1 according to this embodiment will be described.

As shown in FIG. 15A, the vertical direction of the lifting member 24 is defined as the V-axis direction, the moving direction on the horizontal rail 23 is defined as the U-axis direction, and the moving direction along the running rail 22 is defined as the W-axis direction. The S1-axis tool stocker 28 can be driven in the vertical direction (V1 axis) and rotation (F1 axis), and the S2-axis tool stocker 28 can be driven in the vertical direction (V2 axis) and rotation (F2 axis). It is possible. The rotary table 25 performs 40% rotation by 90° around the AL axis.

At the standby position shown in FIG. 1, the position of the S2-axis tool stocker 28 in the V-axis direction is -1900 mm, the rotation angle of the AL-axis is -90°, and the U-axis position is -355 mm.

First, as shown in FIG. 15A, loading of the C1 axis and ATC of the S2 axis are started. The rotary table 25 is moved +200 mm in the X2-axis direction, and the S2-axis tool stocker 28 is lowered by 450 mm in the V-axis direction.

Next, as shown in FIG. 15(b), the hand chuck 26 is moved -110 mm in the W-axis direction to clamp the workpiece 30 unclamped from the C1-axis. On the other hand, the tool stocker 28 for the S2 axis is moved -250 mm in the V2 axis direction to unclamp the second tool 5b from the S2 axis.

Next, as shown in FIG. 16A, the S2 axis is moved +50 mm in the Z2 axis direction, and the hand chuck 26 is moved +110 mm in the W axis direction.

Next, as shown in FIG. 16B, the rotation angle of the AL axis of the tool stocker 28 for the S2 axis is set to −90°, and the rotation angle of the F2 axis is set to 60°.

As shown in FIG. 17(a), the hand chuck 26 is moved in the W-axis direction by -110 mm to unclamp the workpiece 30 from the hand chuck 26 and clamp the C1 axis. The S2 axis is moved -50 mm in the Z2 axis direction, and another second tool 5b is clamped with the S2 axis.

Then, as shown in FIG. 17(b), the rotary table 25 returns 110 mm in the W-axis direction, completing the loading of the C1-axis. The tool stocker 28 returns 250 mm in the V2-axis direction, and the mounting of the second tool 5b on the S2-axis is completed.

As shown in FIG. 18(a), C2 axis loading and S1 axis ATC are started. The rotary table 25 is moved +710 mm in the U-axis direction, and S1 is moved -200 mm in the X1-axis direction.

Next, as shown in FIG. 18(b), the hand chuck 26 is moved -110 mm in the W-axis direction to grip the workpiece 30 unclamped from the C2-axis. On the other hand, the tool stocker 28 moves -250 mm in the V1 axis direction to unclamp the first tool 5a from the S1 axis.

As shown in FIG. 19A, the S1 axis moves +50 mm in the Z1 axis direction, and the rotary table 25 moves 110 mm in the W axis direction.

Next, as shown in FIG. 19B, the tool stocker 28 for the S1 axis has the AL axis of -90° and the F1 axis of 60°.

As shown in FIG. 20(a), the hand chuck 26 is moved in the W-axis direction by -110 mm, and the unclamped workpiece 30 is clamped by the C2 axis. On the other hand, the S1 axis moves -50 mm in the Z1 axis direction and clamps another first tool 5a with the S1 axis.

Then, as shown in FIG. 20(b), the rotary table 25 returns 110 mm in the W-axis direction to complete the loading of the C2-axis. The tool stocker 28 returns 250 mm in the V1-axis direction, and the mounting of the first tool 5a on the S1-axis is completed.

As shown in FIG. 21( a ), the rotary table 25 is raised by 450 mm in the V-axis direction, and machining of the pair of scroll-shaped workpieces 30 is started.

Next, as shown in FIG. 21(b), the first tool 5a and the second tool 5b are synchronized to perform the above-described "scroll-shaped wall processing method". For the work being processed, the work 30 is attached and detached by appropriately rotating the rotary table 25 of the elevating member 24 .

As shown in FIG. 22(a), when starting ATC on two axes simultaneously, the S1 axis is moved by −200 mm in the X1 axis direction, and the S2 axis is moved by +200 mm in the X2 axis direction.

Next, as shown in FIG. 22(b), the tool stocker 28 is moved -250 mm in the V1-axis and V2-axis directions to unclamp the first tool 5a from the S1 axis and unclamp the second tool 5b from the S2 axis. to clamp.

As shown in FIG. 23(a), the S1 axis and S2 axis are moved +50 mm in the Z1 axis direction and the Z2 axis direction, respectively.

Next, as shown in FIG. 23(b), the F1 axis of the pair of tool stockers 28 is set at 60 degrees, and the F2 axis is set at 60 degrees.

As shown in FIG. 24(a), the S1 axis and the S2 axis move -50 mm in the Z1 axis direction and the Z2 axis direction, respectively, and clamp the first tool 5a and the second tool 5b, respectively.

Then, as shown in FIG. 24(b), the tool stocker 28 returns 250 mm in the V1-axis direction and the V2-axis direction, respectively, and the ATC of the S1-axis and the S2-axis is completed.

Therefore, according to the scroll processing machine 1 according to the present embodiment, the production volume can be doubled without a significant cost increase.

(Other embodiments)
The present invention may be configured as follows for the above embodiment.

In the above embodiment, the first tool 5a is moved in the X1-axis direction to move the workpiece 30 in the Y1-axis direction, and the second tool 5b is moved in the X2-axis direction to move the workpiece 30 in the Y2-axis direction. However, conversely, the workpiece 30 may be moved in the X1-axis and X2-axis directions, or the first tool 5a may be moved in the Y1-axis direction and the second tool 5b may be moved in the Y2-axis direction. can be In addition, the X1-axis direction, the Y1-axis direction, the X2-axis direction, and the Y2-axis direction in the present invention are directions orthogonal to each other, and can be set freely as long as they are directions that coincide with the radial direction of the base circle of the involute curve. is possible.

The Z1 axis and Z2 axis may be arranged on the bed 2, the X1 axis and X2 axis may be arranged thereon, and the S1 axis and S2 axis may be arranged thereon.

In the present invention, regardless of the types of the first tool 5a and the second tool 5b, various tools suitable for wall processing, such as end mills and grindstones, can be applied.

The present invention is widely applicable to scroll-shaped walls 32 in which the inner and outer wall surfaces of at least a portion thereof are formed in a spiral shape typified by an involute shape, and other portions such as the scroll outermost end 36 ( 2) may be any shape. For the processing, the processing method according to the present invention or another processing method may be used as appropriate.

The above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications, or uses.

1 Scroll processing machine
2 beds
3a X1 axis table
3b X2 axis table
3c X1 axis motor
3d X2 axis motor
3e X-axis rail
4a Z1 axis table
4b Z2 axis table
4c rail
4d rail
4e S1 axis motor
4f S2 axis motor
4g Z1 axis motor
4h Z2 axis motor
5a first tool
5b second tool
6a Y1 axis column
6b Y2 axis column
6c Y1 axis motor
6d Y2 axis motor
7a Y1 axis table
7b Y2-axis table
9a first work chuck
9b second work chuck
9c C1 axis motor
9d C2 axis motor
20 gantry loader
21 support column
22 running rail
23 horizontal rail
24 lifting member
25 Rotary table
26 hand chuck
27 work stocker
28 Tool stocker
30 work
32 scroll wall
34 Center
35 involute curve
35A involute curved outer wall surface
35B Involute curved inner wall surface
36 Outermost end of scroll
40 controller
42 data reader
44 Interpolation data calculation unit
46 pulse distributor

Claims (5)

bed and
an X1-axis table movable on the bed along the X1-axis by an X1-axis actuator;
an X2-axis table movable on the bed along an X2-axis parallel to the X1-axis by an X2-axis actuator;
a Z1-axis table movable on the X1-axis table in a Z1-axis perpendicular to the X1-axis by a Z1-axis actuator;
a Z2-axis table movable on the X2-axis table in a Z2-axis perpendicular to the X2-axis by a Z2-axis actuator;
a rotatable S1 axis provided on the Z1 axis table, extending along the Z1 axis, and on which a first tool is mounted;
a rotatable S2 axis provided on the Z2 axis table, extending along the Z2 axis, and having a second tool mounted thereon;
a first column provided at a position facing the X1-axis table;
a second column provided at a position facing the X2-axis table;
a Y1-axis table provided on the first column and movable along a Y1-axis perpendicular to the X1-axis and the Z1-axis by a Y1-axis actuator;
a Y2-axis table provided on the second column and movable along a Y2-axis perpendicular to the X2-axis and the Z2-axis by a Y2-axis actuator;
a C1 axis provided on the Y1 axis table, extending parallel to the S1 axis, and on which a first workpiece is rotatably mounted by a C1 axis motor;
a C2 axis provided on the Y2 axis table, extending parallel to the S2 axis, to which a second workpiece is rotatably mounted by a C2 axis motor;
The X1-axis actuator, the Y1-axis actuator, and the C1-axis motor are synchronized to scroll the first workpiece, and the X2-axis actuator, the Y2-axis actuator, and the C2-axis motor are synchronized with the X1-axis actuator and the C1-axis motor. A scroll processing machine comprising: a control device for performing scroll processing of the second work so as to be the same as the first work while synchronizing with movements of the Y1-axis actuator and the C1-axis motor. . While removing and replacing the first work fixed to the C1 axis, the control device removes and replaces the second tool of the S2 axis and removes the second work fixed to the C2 axis. 2. The scroll processing machine according to claim 1, wherein said first tool of said S1 axis is removed and replaced during replacement. The control device adjusts the mounting error of the first tool with respect to the S1 axis and the elongation error of the first spindle to which the first tool is fixed by correcting the Z1 axis with the Z1 axis actuator. The mounting error of the second tool with respect to the S2 axis and the elongation error of the second spindle to which the second tool is fixed are adjusted by correcting the Z2 axis with the Z2 axis actuator. 3. The scroll processing machine according to claim 1 or 2. The control device adjusts the outer diameter error of the first tool by correcting the X1 axis with the X1 axis actuator, and adjusts the outer diameter error of the second tool with the X2 axis actuator. 4. The scroll processing machine according to any one of claims 1 to 3, wherein the scroll processing machine is configured to be adjusted by correcting the axis. bed and
an X1-axis table movable on the bed along the X1-axis by an X1-axis actuator;
an X2-axis table movable on the bed along an X2-axis parallel to the X1-axis by an X2-axis actuator;
a Z1-axis table movable on the X1-axis table along a Z1-axis perpendicular to the X1-axis;
a Z2-axis table movable on the X2-axis table along a Z2-axis perpendicular to the X2-axis;
a rotatable S1 axis provided on the Z1 axis table, extending along the Z1 axis, and on which a first tool is mounted;
a rotatable S2 axis provided on the Z2 axis table, extending along the Z2 axis, and having a second tool mounted thereon;
a first column provided at a position facing the X1-axis table;
a second column provided at a position facing the X2-axis table;
a Y1-axis table provided on the first column and movable along a Y1-axis perpendicular to the X1-axis and the Z1-axis by a Y1-axis actuator;
a Y2-axis table provided on the second column and movable along a Y2-axis perpendicular to the X2-axis and the Z2-axis by a Y2-axis actuator;
a C1 axis provided on the Y1 axis table, extending parallel to the S1 axis, and on which a first workpiece is rotatably mounted by a C1 axis motor;
a C2-axis provided on the Y2-axis table, extending parallel to the S2-axis, and having a second workpiece rotatably mounted by a C2-axis motor;
The X1-axis actuator, the Y1-axis actuator, and the C1-axis motor are synchronized to scroll the first workpiece, and the X2-axis actuator, the Y2-axis actuator, and the C2-axis motor are synchronized with the X1-axis actuator and the C1-axis motor. A method for machining a scroll-shaped work, characterized in that the second work is scroll-machined so as to be the same as the first work while synchronizing with movements of the Y1-axis actuator and the C1-axis motor.

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