JP3626878B2 - Disk parts processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for processing a disk component including a large number of grooves having an inclined groove surface, such as a turbine disk, on an outer peripheral edge.
[0002]
[Prior art]
As a disk component, there is a turbine disk provided with a large number of groove portions having inclined groove surfaces on an outer peripheral edge portion. FIG. 10 shows the overall state of the turbine disk, FIG. 11 shows the enlarged state of the groove, and FIG. 12 shows the front view of the groove. As shown in FIG. 10, the turbine disk 1 that is a component of the gas turbine engine is provided with a large number of grooves 2 on the outer peripheral edge in which blade members (not shown) are mounted. Since the turbine disk 1 is operated at high speed under high pressure, the groove portion 2 to which the blade member is mounted has a shape having an inclined groove surface 3 as shown in FIGS. 11 and 12.
[0003]
When the turbine disk 1 is processed, slot processing is performed on the outer peripheral edge portion to form the groove portion 2 inclined at an inclination angle α (depending on the type of product), and then the corner portions (acute angle side and obtuse angle) of the groove portion 2 as finishing. Side) 4 is rounded to give a predetermined roundness. As shown in FIG. 11, the conventional rounding process requires a cemented carbide cutter 6 to be mounted on a mini grinder 5 and manually pressed the cemented carbide cutter 6 against the corner 4 of the groove 2 to request both the acute angle side and the obtuse angle side. It is rounded.
[0004]
[Problems to be solved by the invention]
In recent years, since the demand for improving the reliability of the components of the turbine disk 1 is increasing, a high degree of machining accuracy is required. Conventionally, in the processing of the groove portion 2 of the turbine disk 1, since rounding is performed manually using the mini grinder 5, it takes a lot of time and it is difficult to maintain accurate and uniform accuracy. The current situation is that the required accuracy cannot be satisfied.
[0005]
The present invention has been made in view of the above situation, and an object of the present invention is to provide a machining apparatus that enables machining of a groove portion having an inclined groove surface of a disk component.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the configuration of the present invention is a processing apparatus for performing corner processing of a groove part of a disk part having a plurality of groove parts having inclined groove surfaces on the outer peripheral edge part, and supports the disk part. A plurality of processing tools according to the inclination of the groove, and a spindle head that is selectively supported to be freely driven and rotated, and is positioned at an arbitrary position relative to the supporting means; Circumferential positioning means for positioning the disk part in the circumferential direction by fitting in the groove part, and radial positioning means for positioning the disk part in the radial direction by contacting the bottom part of the groove part of the disk part It is characterized by having.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 is a perspective view of a disk component processing apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the disk component processing apparatus, FIG. 3 is a plan view of a positioning device, and FIGS. Is the operation status of the positioning device, FIG. 6 is a schematic configuration of an acute angle cutter, FIG. 7 is a processing concept of an acute angle cutter, FIG. 8 is a schematic configuration of an obtuse angle cutter, and FIG. Is shown. The configuration of the turbine disk 1 as a disk component is the same as that described with reference to FIGS.
[0008]
The overall configuration of the disk component processing apparatus will be described with reference to FIGS.
[0009]
As shown in the figure, a bed 12 of a disk component processing apparatus 10 is provided with a table 12 as a support means, and the turbine disk 1 is supported on the table 12 via a support tool (not shown). Rail tables 13 are erected in the front-rear direction on both sides of the table 12, and each rail table 13 is provided with a Y-direction slide rail 14 extending in the horizontal front-rear direction. A beam member 15 is supported over each rail base 13, and the beam member 15 can move back and forth in the horizontal front-rear direction (Y direction) along the Y-direction slide rail 14.
[0010]
An X-direction slide rail 16 extending in the horizontal left-right direction orthogonal to the Y direction is provided on the front surface of the beam member 15, and a horizontal movement column 17 is movably supported on the X-direction slide rail 16 of the beam member 15. . The horizontal movement column 17 can reciprocate in the horizontal left and right direction (X direction) orthogonal to the Y direction.
[0011]
A Z-direction slide rail 18 extending in the vertical direction is provided on the front surface of the horizontal movement column 17, and an elevating column 19 is movably supported on the Z-direction slide rail 18 of the horizontal movement column 17. The elevating column 19 is reciprocally movable in the vertical Z direction.
[0012]
The lifting / lowering column 19 is provided with a spindle head 20 facing the table 12, and the spindle head 20 can be moved forward / backward / left / right / up / down with respect to the table 12 by the movement of the beam member 15, the horizontal movement column 17 and the lifting column 19. Positioned. The spindle head 20 is provided with a spindle 21 that can be driven and rotated. A spindle 21 supports a machining tool that gives a predetermined roundness to the corner 4 of the groove 2 of the turbine disk 1. Two types of machining tools, an acute angle cutter and an obtuse angle cutter, are selectively supported by the main shaft 21 in accordance with the inclination of the groove 2 of the turbine disk 1.
[0013]
That is, as shown in FIGS. 6 to 9, as the processing tools, an acute angle cutter 22 and an obtuse angle cutter 23 are prepared, and the acute angle cutter 22 and the obtuse angle cutter 23 are provided with blade portions 24 and 25. The R shapes of the blade portions 24 and 25 are set differently. As shown in FIG. 7, the cutting of the corner 4 of the acute angle groove 2 is performed by the blade 24 of the acute angle cutter 22, and as shown in FIG. 9, the cutting of the corner 4 of the obtuse groove 2 is performed. Is carried out by the blade portion 25 of the obtuse angle cutter 23.
[0014]
On the other hand, a positioning device 30 is provided on the front side of the table 12 of the bed 11. As shown in FIGS. 1 to 3, the bed 11 is provided with a base 31 of a positioning device 30, and the base 31 serves as a circumferential positioning means that reciprocates toward the table 12 by driving a cylinder 32. A phasing block 33 is provided. As shown in FIGS. 4 and 5, the phasing block 33 is inclined at an angle corresponding to the inclination of the groove 2 of the turbine disk 1, and the phasing block 33 is fitted into the groove 2 of the turbine disk 1, The turbine disk 1 is positioned in the circumferential direction.
[0015]
A bottom gauge 34 as a radial positioning means is provided at the tip of the phasing block 33, and when the phasing block 33 is fitted in the groove 2, the bottom gauge 34 abuts against the bottom of the groove 2 and The position is measured. The position of the turbine disk 1 in the radial direction is adjusted by adjusting the support or the like, and the turbine disk 1 is positioned in the radial direction so that the bottom surface probe 34 has a predetermined measurement value. Further, as shown in FIGS. 2 and 3, the positioning device 30 includes a Z-direction clamp 35 that regulates the turbine disk 1 in the vertical direction and performs positioning in the Z direction.
[0016]
A situation in which the corner part 4 of the groove part 2 of the turbine disk 1 is rounded by the disk component processing apparatus 10 having the above-described configuration will be described.
[0017]
When the turbine disk 1 is processed, the outer peripheral edge portion is slot processed to form the groove portion 2 inclined at the inclination angle α. After that, as finishing, a rounding process is performed in which a predetermined roundness is applied to the corners (acute angle side and obtuse angle side) 4 of the groove 2. Since slot machining and rounding cannot be performed at the same time, the turbine disk 1 is positioned by the positioning device 30 in accordance with the shape of the groove 2 after the slot machining. After that, the acute angle cutter 22 is mounted on the main shaft 21 to cut the acute angle side corner 4, and after the cutting of the acute angle side corner is completed, the turbine disk 1 is positioned, and the obtuse angle cutter 23 is mounted on the main shaft 21. Then, the corner 4 on the obtuse angle side is cut.
[0018]
The turbine disk 1 after the slot processing is mounted on the table 12 of the processing apparatus 10. By driving the cylinder 32 of the positioning device 30, the phasing block 33 is fitted into the groove 2 of the turbine disk 1 as shown in FIGS. 4 and 5. By fitting the phasing block 33 into the groove 2 of the turbine disk 1, the position of the turbine disk 1 in the circumferential direction (the direction of arrow A in FIG. 5) is adjusted, and positioning in the circumferential direction is performed.
[0019]
As shown in FIG. 5, when the phasing block 33 is fitted in the groove portion 2, the bottom surface measuring element 34 comes into contact with the bottom surface of the groove portion 2 and the position of the bottom surface is measured. The position of the turbine disk 1 in the radial direction (in the direction of arrow B in FIG. 5) is adjusted by adjusting the support so that the bottom surface measuring element 34 has a predetermined measurement value, and the radial positioning is performed.
[0020]
After positioning the turbine disk 1 in a predetermined state, an acute angle cutter 22 is mounted on the main shaft 21. By moving the beam member 15, the horizontal movement column 17 and the lifting column 19, the spindle head 20 is moved to any position in the front / rear, left / right and up / down directions with respect to the table 12, and the acute corner portion 4 is driven by the rotation of the spindle 21. Is cut with an acute angle cutter 22 (see FIG. 7). After the cutting of the sharp corners 4 with respect to the grooves 2 on the entire circumference of the turbine disk 1 is completed by the movement of the spindle head 20, the acute angle cutter 22 is removed from the spindle 21 and the obtuse angle cutter 23 is mounted on the spindle 21.
[0021]
After the obtuse angle cutter 23 is mounted on the main shaft 21, the main shaft head 20 is moved to any position in the front / rear, left / right, and upper / lower directions with respect to the table 12 by moving the beam member 15, the horizontal movement column 17 and the lifting column 19. The obtuse angle side corner 4 is cut by the obtuse angle cutter 23 by driving rotation of the main shaft 21 (see FIG. 9).
[0022]
When the cutting of the obtuse angle side corner 4 with respect to the groove 2 on the entire circumference of the turbine disk 1 is completed, the turbine disk 1 is turned upside down, and the phase determination block 33 is fitted again into the groove 2 of the turbine disk 1 and the bottom surface is measured. The child 34 is brought into contact with the bottom surface of the groove 2 to position the turbine disk 1 in a predetermined state. Similarly to the above, the corner 4 is cut by the acute angle cutter 22 and the obtuse angle cutter 23 to complete the rounding process of the turbine disk 1.
[0023]
In the above-described disk component processing apparatus 10, the turbine disk 1 is positioned by the positioning apparatus 30 in accordance with the product, the acute angle cutter 22 and the obtuse angle cutter 23 are selectively mounted on the main shaft 21, and the main spindle head 20 is attached to the table 12. Therefore, it is possible to round the corner portions 4 on the acute angle side and the obtuse angle side of the groove portion 2 having the inclined groove surface 3. For this reason, mechanization of a rounding process is attained, and the rounding process of the groove part 2 which has the groove surface 3 inclined in a short time can be performed maintaining accurate and uniform precision.
[0024]
【The invention's effect】
The disk component processing apparatus of the present invention is a processing apparatus that performs corner processing of a groove portion of a disk component having a plurality of groove portions having inclined groove surfaces on an outer peripheral edge portion, and a support means for supporting the disk component; A plurality of machining tools according to the inclination of the groove are selectively driven and rotated, and the spindle head is positioned at an arbitrary position relative to the support means, and is fitted into the groove of the disk component. A circumferential positioning means for positioning the disk component in the circumferential direction; and a radial positioning means for positioning the disk component in the radial direction by contacting the bottom of the groove of the disk component. In addition, the circumferential positioning means and the radial positioning means position the disk parts in the same way as the product, and selectively mount multiple machining tools on the spindle head. The spindle head by positioning at an arbitrary position with respect to the disk parts, can be performed corner machining of the groove having an inclined groove surface. As a result, it becomes possible to perform machining of the corner portion of the groove portion having the inclined groove surface of the disk part, and it is possible to process the groove portion having the inclined groove surface in a short time while maintaining accurate and uniform accuracy. it can.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the overall configuration of a disk component processing apparatus according to an embodiment of the present invention.
FIG. 2 is a front view showing the overall configuration of the disk component processing apparatus.
FIG. 3 is a plan view of the positioning device.
FIG. 4 is an explanatory diagram of an operation state of the positioning device.
FIG. 5 is an explanatory diagram of an operation state of the positioning device.
FIG. 6 is a schematic configuration diagram of an acute angle cutter.
FIG. 7 is a processing conceptual diagram of an acute angle cutter.
FIG. 8 is a schematic configuration diagram of an obtuse angle cutter.
FIG. 9 is a conceptual diagram of machining of an obtuse angle cutter.
FIG. 10 is an explanatory diagram of the overall state of a turbine disk.
FIG. 11 is an enlarged view of a groove.
FIG. 12 is a front view of a groove.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Turbine disk 2 Groove part 3 Groove surface 4 Corner | angular part 10 Disk component processing apparatus 11 Bed 12 Table 13 Rail base 14 Y direction slide rail 15 Beam material 16 X direction slide rail 17 Horizontal movement column 18 Z direction slide rail 19 Lifting column 20 Spindle Head 21 Spindle 22 Acute angle cutter 23 Obtuse angle cutter 24, 25 Blade 30 Positioning device 31 Base 32 Cylinder 33 Positioning block 34 Bottom gauge 35 Z-direction clamp

Claims (1)

A processing apparatus for performing corner processing of a groove portion of a disk component having a plurality of groove portions having inclined groove surfaces on an outer peripheral edge portion, and a plurality of means corresponding to the inclination of the groove portion, and a supporting means for supporting the disk component A spindle head that is selectively supported to be driven to rotate by a machining tool and positioned at an arbitrary position relative to the support means, and a circumferential direction of the disk component by fitting in the groove of the disk component And a circumferential positioning means for positioning the disk component in a radial direction by contacting the bottom of the groove of the disk component.

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