JP5595171B2 - Electrolytic processing equipment - Google Patents

Description

  The present invention relates to an electrolytic processing apparatus for drilling a workpiece.

  Conventional drilling techniques include machining, laser machining, electrical discharge machining, electrolytic machining, etc. For example, as a machining method for drilling cooling holes in a moving blade of a gas turbine, the moving blade is difficult to cut material, high temperature member In view of the fact that the aspect ratio of the cooling hole is large, perforation processing by electrolytic processing is desirable.

  As an apparatus for performing perforation processing by electrolytic processing as described above, an electrolytic solution is conventionally allowed to flow out from the tip of a tubular electrode rod opposed to a moving blade (workpiece) as described in Patent Document 1 below, for example. In addition, there is provided an electrolytic processing apparatus for drilling a moving blade by applying a DC voltage between the tip of an electrode rod and the moving blade. This electrolytic processing apparatus is provided with a main shaft (gripping part) for gripping the upper ends of a plurality of electrode rods, and an elevating mechanism for moving the main shaft up and down. According to this electrolytic processing apparatus, after the tips (lower ends) of a plurality of electrode rods are opposed to the blade top surface of the moving blade with a gap, the electrolyte is allowed to flow out from the tip of the electrode rod, While applying a DC voltage to the moving blade, the main shaft is lowered by the elevating mechanism and the electrode rod is gradually moved downward.

  Further, as an electrolytic processing apparatus for drilling a cooling hole in a moving blade, conventionally, for example, a rotation mechanism for rotating an electrode rod as described in Patent Document 2 below is provided, and cooling is performed while rotating the electrode rod. There has been proposed an electrolytic processing apparatus capable of drilling holes. In this case, in Patent Document 2, a turbulent flow generating means for cooling fluid is formed on the inner peripheral surface of the cooling hole by the electrode rod rotating axially by adding a conductive fin or an inclination in the circumferential direction of the tip of the electrode rod. Spiral irregularities are formed. Thereby, the cooling performance of gas turbine high temperature members, such as a gas turbine rotor blade and a gas turbine stationary blade by a cooling hole, can be improved.

Japanese Utility Model Publication No. 4-2522 JP 2008-38774 A

  In the latter electrolytic processing apparatus described above, a plurality of electrode rods are axially rotated. Usually, a plurality of electrode rods are linearly arranged, and a rotation mechanism for rotating these electrode rods is provided. By the way, for example, a moving blade of a gas turbine is not generally formed in a rectangular flat plate shape, but has a blade shape with a curved cross section. For this reason, it is necessary to arrange a plurality of cooling holes in a non-linear manner. Therefore, when drilling a plurality of cooling holes in the moving blade by the above-described conventional electrolytic processing apparatus, by performing the drilling work divided into a plurality of times while changing the relative position of the moving blade with respect to the electrode rod, A plurality of cooling holes arranged in a non-linear manner are formed. In such a drilling method, not only the tact time increases, but also the positioning accuracy of the cooling hole decreases due to a positioning error or the like when the relative position of the moving blade and the processing apparatus is changed.

  The present invention takes the above-described conventional problems into consideration, and improves the workability of the drilling work performed while rotating even if a plurality of holes are arranged in a non-linear manner to shorten the tact time. An object of the present invention is to provide an electrolytic processing apparatus capable of improving the positional accuracy of the holes.

The electrolytic processing apparatus according to the present invention has the following features in order to solve the above-described problems.
That is, the electrolytic processing apparatus according to the present invention causes the electrolytic solution to flow out from the tip of the tubular electrode rod opposed to the workpiece and applies a DC voltage between the tip of the electrode rod and the workpiece. In the electrolytic processing apparatus for perforating the workpiece, a plurality of gripping portions that respectively grip the plurality of electrode rods, and the plurality of gripping portions even when the plurality of gripping portions are arranged in a non-linear manner A rotating mechanism capable of applying a shaft rotational force in synchronization with each other, and a drive source for driving the rotating mechanism, and the electrolytic solution inside the rotating mechanism opposite to the workpiece side And an electrolyte chamber that is communicated with the base ends of the plurality of electrode rods, and the interior of the electrolyte chamber is divided into a plurality of liquid chambers for each electrode rod diameter or each electrode rod. The electrolyte solution is divided for each liquid chamber. It is characterized in that liquid flow controller for controlling the amount is provided.

In the electrolytic processing apparatus having such characteristics, first, the electrode rods are respectively held by a plurality of holding portions, and the tips of the electrode rods are respectively opposed to the workpiece. A plurality of holes are simultaneously drilled in the workpiece by causing the electrolytic solution to flow out from the tip of each electrode rod and applying a DC voltage between the tip of each electrode rod and the workpiece. At this time, the rotation mechanism is driven by the drive source, and the plurality of gripping portions are respectively rotated on the axes simultaneously. As a result, the above-described drilling process proceeds while the electrode rod rotates and holes are formed in the workpiece. Even if a plurality of gripping portions are arranged in a non-linear manner, the plurality of gripping portions can be simultaneously rotated by a rotating mechanism, so that a plurality of holes arranged in a non-linear manner can be drilled simultaneously. It is possible to make it.
Here, if electrode rods having different diameters are communicated with undivided electrolyte chambers (the same liquid chamber), the flow resistance varies depending on the diameter of the electrode rods. It becomes easy to flow into the smaller one (large diameter) and difficult to flow into the larger resistance (small diameter). Therefore, there may be a problem that the electrolyte does not flow through the small-diameter electrode rod. On the other hand, by dividing the inside of the electrolytic solution chamber for each diameter of the electrode rod or for each electrode rod, the electrolytic solution can sufficiently flow into the small-diameter electrode rod.
Further, even when the electrolyte flows into the electrode rods of different diameters, if the same pressure is passed through the electrode rods of different diameters, the flow rate of the large-diameter electrode rods is the same as the small-diameter electrode rods. Smaller than the circulation volume. Depending on the arrangement of the electrode rods, the flow rate may differ due to differences in the flow path such as the path length of the electrolyte. On the other hand, by controlling the flow rate of the electrolyte solution for each liquid chamber, that is, for each electrode rod diameter or each electrode rod, an appropriate amount of electrolyte solution according to the diameter of each electrode rod and the arrangement of the electrode rods can be obtained. It flows out from the electrode rod.

Moreover, it is preferable that the electrolytic processing apparatus according to the present invention includes an electrode guide that guides the electrode rod that moves relative to the workpiece.
As a result, the electrode rod moves relative to the workpiece while being guided in a predetermined direction by the electrode guide, and drilling of the workpiece proceeds.

Moreover, it is preferable that the electrolytic processing apparatus according to the present invention includes an energization unit that energizes each of the plurality of electrode rods, and an energization control unit that controls the energization of each electrode rod.
As a result, a current is passed from the energizing portion to each electrode rod, and a DC voltage is applied between the tip of each electrode rod and the workpiece. At this time, energization to the electrode rod is individually controlled for each electrode rod by the energization control unit, so that a DC voltage applied between the tip of the electrode rod and the workpiece is applied to each electrode according to each hole. Adjust appropriately for each bar.

In the electrolytic processing apparatus according to the present invention, it is preferable that the liquid flow control unit controls the flow of the electrolytic solution by constant flow rate control that maintains a constant flow rate of the electrolytic solution flowing out from the tip of the electrode rod.
The electrolyte flowing out from the tip of the electrode rod is discharged from the open end of the hole being drilled, but as the drilling progresses, the hole length becomes longer and the pressure loss in discharging the electrolyte gradually increases. Therefore, if the flow of the electrolyte is controlled by constant pressure control that keeps the pressure of the electrolyte flowing out from the tip of the electrode rod constant, the discharge amount of the electrolyte is reduced as the drilling proceeds, and the hole bottom (hole Sludge accumulates on the tip side in the direction of travel of the electrode, causing problems such as short-circuiting between the electrode rod and the workpiece. On the other hand, when the flow of the electrolyte is controlled by the constant flow rate control, even if the perforation progresses and the pressure loss in the discharge of the electrolyte increases, the outflow pressure of the electrolyte increases correspondingly. Since the flow rate of the electrolyte solution flowing out from the tip of the electrode is kept constant, the electrolyte solution is continuously discharged.

In addition, the electrolytic processing apparatus according to the present invention includes a first gripping member that is engaged with the rotation mechanism and transmits an axial rotational force of the rotation mechanism, and is attached to and detached from the first gripping member. It is preferable that a second holding member that is attached in a possible manner and holds the electrode rod is provided.
When mounting the electrode rod, it is usually a mounting operation in an unnatural posture from the device connection, but in the electrolytic processing apparatus having the gripping portion described above, when mounting the electrode rod, After gripping the electrode rod with the second gripping member removed from the one gripping member, the electrode rod can be mounted by attaching the second gripping member to the first gripping member. Thereby, mounting | wearing of an electrode rod is performed, without contacting an electrode rod directly.

In the electrolytic processing apparatus according to the present invention, the rotation mechanism includes a drive-side rotator fixed to the drive shaft of the drive source, and a plurality of gripper-side rotators fixed to the plurality of grippers. And a rotation transmitting means for transmitting the rotational force of the driving side rotating body to each of the plurality of gripper side rotating bodies.
As a result, the drive-side rotator rotates as the drive shaft of the drive source rotates, and the rotational force of the drive-side rotator is transmitted to the plurality of gripper-side rotators via the rotation transmitting means. Each of the gripper side rotating bodies rotates. As a result, the plurality of gripping portions rotate at the same time, and the plurality of electrode bars gripped by the gripping portions rotate at the respective axes.

  According to the electrolytic processing apparatus according to the present invention, even when a plurality of electrode rods are arranged in a non-linear manner, the electrode rods can be simultaneously axially rotated. This improves the workability of the drilling work and shortens the tact time. In addition, drilling can be performed while rotating a plurality of electrode rods at the same time, thereby minimizing relative position changes with the moving blades, preventing occurrence of positioning errors, etc., and improving position accuracy. it can.

It is a schematic diagram of the electrolytic processing apparatus for demonstrating the 1st Embodiment of this invention. It is a fragmentary longitudinal cross-sectional view of the electrolytic processing apparatus for demonstrating the 1st Embodiment of this invention. It is a fragmentary longitudinal cross-sectional view of the electrolytic processing apparatus for demonstrating the 2nd Embodiment of this invention. It is a schematic diagram of the electrolytic processing apparatus for demonstrating the 3rd Embodiment of this invention. It is a fragmentary cross-sectional view of the electrolytic processing apparatus for demonstrating the 3rd Embodiment of this invention. It is a perspective view showing the rotation transmission means for demonstrating the 3rd Embodiment of this invention. It is a schematic diagram of the electrolytic processing apparatus for demonstrating the 4th Embodiment of this invention. It is a fragmentary cross-sectional view of the electrolytic processing apparatus for demonstrating the 4th Embodiment of this invention. It is a perspective view showing the rotation transmission means for demonstrating the 4th Embodiment of this invention.

  Hereinafter, first to fourth embodiments of an electrolytic processing apparatus according to the present invention will be described with reference to the drawings.

[First Embodiment]
First, a first embodiment will be described with reference to FIGS.
In the present embodiment, the distal end side of the electrode rod 2, which will be described later, that is, the front side in the drilling direction (lower side in FIG. 1) is the lower side, and the opposite side, that is, the proximal end side of the electrode rod 2 (FIG. 1). The upper side in FIG.

  As shown in FIG. 1, an electrolytic processing apparatus 1 is a perforating apparatus that perforates a plurality of cooling holes H from a blade top portion to a blade root portion of a moving blade X (workpiece). The electrolyte solution is allowed to flow out from the tip of the opposed tubular electrode rod 2 and a DC voltage is applied between the tip (lower end) of the electrode rod 2 and the portion to be drilled of the rotor blade X to drill the rotor blade X. This is an electrolytic processing apparatus that electrolyzes a part and drills the rotor blade X. In addition, the electrolytic processing apparatus 1 in the present embodiment is an apparatus that can simultaneously drill a plurality of cooling holes H, and is equipped with a plurality of electrode bars 2.

The schematic configuration of the above-described electrolytic processing apparatus 1 includes an electrode rod 2, a workpiece fixing jig 3, a gripping portion 4, a rotating mechanism 5, a drive source 6, a current-carrying portion 7, a housing 8, and an electrolytic solution. A chamber 9, an elevating mechanism 10, an electrode guide 11, an energization control unit 12, and a liquid flow control unit 13 are provided.
The electrode rod 2 is a cylindrical rod member that is insulated and flexible except for the tip and the grip portion, and is made of a conductive material such as titanium, for example. The electrolytic processing apparatus 1 includes a plurality of types of electrode rods 2 having different diameters. For example, in the example shown in FIG. 1, the electrode rods 2A at both ends and the intermediate electrode rods 2B have different diameters.
The workpiece fixing jig 3 is a pedestal for fixing the moving blade X, and the moving blade X is placed in a vertical position (an attitude in which the blade root portion faces down and the blade top portion faces upward). The workpiece fixing jig 3 is provided with a fixing means (not shown) for fixing the moving blade X, and the moving blade X on the workpiece fixing jig 3 is fixed.

  The casing 8 is a box having a rectangular shape in cross section, and the rotation mechanism 5 and the energization unit 7 are accommodated therein. On the upper wall portion 80 and the lower wall portion 81 of the housing 8, a plurality of pairs of rotary bearings 82 and 83 are disposed so as to face each other. More specifically, as shown in FIG. 2, the upper wall portion 80 is formed with a plurality of multi-stage through holes 84 whose lower portions are larger in diameter than the upper portions, and inside the lower portions of these through holes 84. The rotary bearings 82 are respectively fitted. Further, in the lower wall portion 81, multi-stage through-holes 85 whose upper and lower portions are respectively larger in diameter than the intermediate portion are formed at positions facing the above-described plurality of through-holes 84. The rotary bearings 83 are respectively fitted inside the upper portions of the through holes 85. These through holes 84 and 85 are arranged in accordance with the arrangement of a plurality of gripping portions 4 described later.

  The gripping part 4 is a chuck holder that grips the upper part of the electrode rod 2, and as shown in FIG. The grip portion 4 is supported by the housing 8 through the pair of rotary bearings 82 and 83 as described above so as to be rotatable. More specifically, as shown in FIG. 2, the gripping portion 4 is provided at a lower end of the cylindrical portion 40 and a cylindrical portion 40 that extends along the vertical direction and through which the electrode rod 2 is inserted. A tightening portion 41 for tightening the electrode rod 2 from the outside in the radial direction and a cylindrical thrust direction receiver 42 through which the tube portion 40 is inserted are provided. An upper end portion of the cylindrical portion 40 is inserted into the through hole 84 of the upper wall portion 80 of the housing 8 and is supported so as to be capable of rotating the shaft via a rotary bearing 82 in the through hole 84. The lower part of the cylinder part 40 is inserted into the inside of the through hole 85 of the lower wall part 81 of the housing 8, and is supported so as to be capable of axial rotation through a rotary bearing 83 in the through hole 85. In addition, an O-ring-shaped sealing material 43 fitted inside the lower end portion of the through hole 85 of the lower wall portion 81 described above is covered at the lower portion of the cylindrical portion 40, and the cylindrical portion is covered by the sealing material 43. 40 and the through hole 85 are sealed.

  The tightening portion 41 is fixed to the lower end of the cylindrical portion 40 protruding downward from the lower end of the through hole 85 of the lower wall portion 81 described above. The tightening portion 41 is gradually reduced in diameter from the lower end toward the upper side and has a wedge-receiving chuck main body 44 having a tapered hole communicating with the inside of the cylindrical portion 40, and an exterior that can move up and down on the chuck main body 44. And a wedge-shaped fastening member 46 attached to the cover 45 and inserted inside the tapered hole of the chuck main body 44. In the tightening portion 41, the cover 45 is raised with respect to the chuck main body 44 with the electrode rod 2 inserted inside the tightening member 46, and the tightening member 46 is pushed into the taper hole of the chuck main body 44. Thus, the diameter of the fastening member 46 is reduced by the wedge effect, and the electrode rod 2 is fastened and held by the fastening member 46.

The thrust direction receiver 42 is a member that supports the cylinder portion 40 and restricts the movement of the electrode rod 2 in the thrust direction (axial direction). As a general configuration, the thrust direction receiver 42 has a passive gear 51 and a lower rotary bearing described later. A first thrust direction bearing 42A having a cylindrical shape interposed between the second axial direction and a second thrust direction bearing 42B having an annular shape interposed between a passive gear 51 and an upper rotary bearing 82 described later. I have. The cylindrical portions 40 are inserted into the first and second thrust direction receivers 42A and 42B, respectively.
Further, as shown in FIG. 1, the plurality of gripping portions 4 are arranged in a non-linear shape in plan view according to the non-linear arrangement of the plurality of cooling holes H. For example, when the moving blade X is curved in an arc shape and a plurality of cooling holes H are drilled by arranging them in an arc shape, the plurality of gripping portions 4 are arranged in an arc shape in plan view.
The gripping part 4 (cylinder part 40, tightening part 41 and thrust direction receiver 42) is made of a conductive metal material, and current is passed from the energizing part 7 to the electrode rod 2 through the gripping part 4. The

  The rotation mechanism 5 is a mechanism that can apply axial rotational force to the plurality of gripping portions 4 in synchronization with each other even when the plurality of gripping portions 4 are arranged in a non-linear manner. The driving side rotating body (driving gear 50) fixed to the driving shaft 60, the plurality of gripping part side rotating bodies (passive gear 51) fixed to the plurality of gripping parts 4, respectively, and the rotational force of the driving side rotating body Rotation transmission means (the tooth portions of the drive gear 50 and the passive gear 51) that respectively transmit the rotation to the plurality of gripper side rotating bodies. More specifically, the rotation mechanism 5 has a gear structure in which a plurality of gears 50 and 51 are engaged with each other. As a schematic structure, the rotation mechanism 5 includes a drive gear 50 mounted on the drive shaft 60 of the drive source 6 and And passive gears 51 respectively mounted on the plurality of gripping portions 4 (tube portions 40). The drive gear 50 is pivotally supported by the drive shaft 60 and meshes with any of the plurality of passive gears 51. Adjacent passive gears 51 are meshed with each other, and the other passive gear 51 rotates in the opposite direction as the axis of one passive gear 51 rotates. In the present embodiment, the rotation mechanism 5 is divided into a plurality (two) of units, and two sets of a plurality of passive gears 51 in which adjacent passive gears 51 are engaged with each other are provided.

  The drive source 6 is a mechanism that drives the rotation mechanism 5 described above, and is a motor that rotates the drive shaft 60. The drive source 6 is placed on the upper surface of the housing 8, and the drive shaft 60 passes through the upper wall portion 80 of the housing 8 and is inserted inside the housing 8 so as to be rotatable. In the present embodiment, the drive sources 6 are respectively disposed at both end portions of the housing 8.

  The energization unit 7 is a current supply unit that energizes the plurality of electrode rods 2 with currents necessary for electrolysis, and is provided for each electrode rod 2. More specifically, as shown in FIG. 2, the energizing section 7 energizes the electrode rod 2 through the gripping section 4 (cylinder section 40, tightening section 41, thrust direction receiver 42). It is made of a brush made of carbon, platinum, titanium, or the like that can be energized with respect to the gripping portion 4 that rotates. The energizing portion 7 is disposed inside the housing 8, and includes a sliding contact portion 70 that is in sliding contact with the outer peripheral surface of the first thrust direction receiver 42 </ b> A of the gripping portion 4, and the sliding contact portion 70 on the gripping portion 4 side. An urging portion 71 such as an urging spring or a leaf spring and a holder portion 72 that holds the sliding contact portion 70 via the urging member 71 are provided.

  As shown in FIG. 1, the energization control unit 12 is means for controlling the energization of the electrode rod 2 for each electrode rod 2. The energization control unit 12 is electrically connected to each energization unit 7 and is also electrically connected to a power source (not shown), and individually supplies current to each energization unit 7 and its current value. Is set as appropriate.

  The electrolyte chamber 9 is a member having a liquid chamber 93 in which an electrolyte is stored, and is formed of a box having a rectangular shape in cross section. The electrolyte chamber 9 is placed on the upper surface of the housing 8 and disposed above the rotation mechanism 5. A plurality of communication holes 91 are formed in the lower wall portion 90 of the electrolyte chamber 9 and communicate with the plurality of through holes 84 of the upper wall portion 80 of the housing 8. The upper portions of the electrode rods 2 protruding from the upper end of the cylindrical portion 40 of the grip portion 4 are respectively inserted inside these communication holes 91, and the upper end portions of these electrode rods 2 are the upper ends of the communication holes 91. To the inside of the electrolyte chamber 9 (liquid chamber 93). The upper end of the communication hole 91 is fitted with an O-ring-shaped sealing material 92 into which the electrode rod 2 is inserted, and the upper end of the communication hole 91 is sealed by this sealing material 92. The electrolytic solution in the liquid chamber 9 is prevented from flowing into the housing 8.

  Further, as shown in FIG. 1, the inside of the electrolytic solution chamber 9 is partitioned into a plurality of liquid chambers 93 </ b> A, 93 </ b> B, and 93 </ b> C for each diameter of the electrode rod 2 by a partition wall 94. More specifically, one or a plurality of partition walls 94 are disposed inside the electrolyte chamber 9, and the partition chamber 94 divides the interior of the electrolyte chamber 9 into a plurality of liquid chambers 93 </ b> A, 93 </ b> B, and 93 </ b> C. ing. In these liquid chambers 93A, 93B, 93C, the upper ends of one electrode rod 2 or the upper ends of a plurality of electrode rods 2 having the same diameter are inserted for each of the liquid chambers 93A, 93B, 93C. The liquid chambers 93A, 93B, 93C are communicated with the electrode rods 2, respectively. For example, in FIG. 1, a pair of partition walls 94 facing each other are disposed inside the electrolyte chamber 9, and liquid chambers 93 </ b> A and 93 </ b> C at both ends and an intermediate liquid chamber 93 </ b> B are formed. The upper ends of the electrode rods 2A disposed at both ends of the plurality of electrode rods 2 are inserted into the liquid chambers 93A and 93C at both ends, respectively. On the other hand, the upper ends of the plurality of electrode rods 2B disposed in the middle of the plurality of electrode rods 2 are inserted into the intermediate liquid chamber 93B, respectively. The plurality of electrode rods 2B have the same diameter and are different in diameter from the electrode rods 2A at both ends.

The electrolyte chamber 9 is connected to a supply pipe 95 for supplying an electrolyte to each of the liquid chambers 93A, 93B, 93C for each of the liquid chambers 93A, 93B, 93C. The supply pipe 95 is connected to an electrolytic solution supply source such as an electrolytic solution tank (not shown), and the electrolytic solution is supplied from the supply source into the electrolytic solution chamber 9 through the supply pipe 95. Further, as shown in FIG. 2, a drain hole 96 for discharging the electrolytic solution in the liquid chamber 93 is formed for each liquid chamber 93 in the lower wall portion 90 of the electrolytic solution chamber 9. The drain hole 96 is closed by a plug 97 detachably fitted in the drain hole 96.
In addition, as said electrolyte solution, it is possible to use the well-known process liquid used for electrolysis, For example, nitric acid solution etc. can be used.

  As shown in FIG. 1, the liquid flow control unit 13 is a means for individually controlling the flow rate of the electrolytic solution supplied to each liquid chamber 93A, 93B, 93C for each liquid chamber 93A, 93B, 93C. The liquid flow control unit 13 controls the flow of the electrolytic solution by constant flow control that maintains the flow rate of the electrolytic solution flowing out from the tip of the electrode rod 2 constant. For example, the liquid flow control unit 13 has a configuration in which a constant flow valve 96 is provided in each supply pipe 95 and the constant flow valves 96 are individually controlled.

  The lifting mechanism 10 is a mechanism that lifts and lowers the grip portion 4, the housing 8, and the electrolyte chamber 9 integrally. More specifically, the elevating mechanism 10 raises and lowers the housing 8, so that the plurality of gripping units 4 attached to the housing 8, the rotating mechanism 5 and the energizing unit 7 in the housing 8, and the housing 8 The drive source 6 and the electrolyte chamber 9 are collectively moved up and down. For example, a known reciprocating mechanism such as a ball screw mechanism or a cylinder mechanism can be used.

  The electrode guide 11 is a guide portion that guides the plurality of electrode rods 2 that move relative to the rotor blades X by the lifting mechanism 10 described above, and the electrode guide 11 moves the traveling direction below the plurality of electrode rods 2. Each will be guided. The electrode guide 11 is composed of a block-shaped member in which a plurality of guide holes 14 through which the plurality of electrode rods 2 are inserted are formed. More specifically, the electrode guide 11 is disposed between the housing 8 and the workpiece fixing jig 3, and the electrode rod 2 is bent between the lower end of the grip portion 4 and the upper end of the guide hole 14. The electrode guide 11 is opposed to the perforated surface of the rotor blade X (the tip surface of the blade top). The plurality of guide holes 14 are through holes corresponding to the drilling position and the drilling angle of each cooling hole H, and the electrode rod 2 advances along the extended line of the central axis of the guide hole 14 to drill the cooling hole H. Is done.

  Next, the usage method of the electrolytic processing apparatus 1 which consists of an above-described structure is demonstrated.

  First, the electrode rods 2 are respectively held by the plurality of gripping portions 4 and the plurality of electrode rods 2 are mounted. More specifically, the casing 8 and the like are raised by the elevating mechanism 10 in advance, and the interval between the casing 8 and the electrode guide 11 is widened. Then, the cover 45 of the clamping part 41 of the grip part 4 is lowered with respect to the chuck main body 44 so that the inside of the clamping member 46 is expanded, and the inside of the clamping member 46 is extended from the lower end of the clamping member 46. The electrode rod 2 is inserted into the electrode rod 2, and the electrode rod 2 is passed through the cylindrical portion 40 of the grip portion 4 and the communication hole 91 of the electrolyte chamber 9 from the seal material 92 to the inside of the electrolyte chamber 9 (liquid chamber 93). Insert the proximal end of 2. Thereafter, the cover 45 of the tightening portion 41 is raised with respect to the chuck body 44 to reduce the diameter of the tightening member 46, and the outer peripheral surface of the electrode rod 2 is tightened by the tightening member 46 to grip the electrode rod 2. Moreover, the lower end part of the electrode rod 2 is inserted inside the guide hole 14 of the electrode guide 11 corresponding to each.

  Next, the moving blade X is fixed to the workpiece fixing jig 3. More specifically, the moving blade X is placed on the workpiece fixing jig 3 in a vertically placed posture with the blade top portion of the moving blade X facing upward, and the moving blade X is fixed by a fixing means (not shown). Thereby, the front-end | tip (lower end) of the electrode rod 2 opposes the end surface of the blade top part of the moving blade X, respectively.

  Next, the electrode rod 2 is moved up and down by the lifting mechanism 10 to adjust the distance between the lower end of the electrode rod 2 and the upper end surface of the rotor blade X to an optimum dimension. Thereby, the electrolytic processing mentioned later can be carried out efficiently.

  Next, while lowering each electrode rod 2 by the elevating mechanism 10, the electrolyte solution flows out from the tip of each electrode rod 2 and a DC voltage is applied between the tip of each electrode rod 2 and the rotor blade X. Thus, a plurality of cooling holes H are simultaneously drilled in the moving blade X.

  Specifically, at this time, by gradually lowering the housing 8 and the like by the lifting mechanism 10, the plurality of gripping portions 4 attached to the housing 8 are integrally lowered, and these gripping portions 4 A plurality of electrode rods 2 respectively held at the same time descend simultaneously.

  In the processing, the electrolytic solution is supplied from the supply pipe 95 into the electrolytic solution chamber 9. Thereby, the electrolyte in the liquid chamber 93 flows through the electrode rod 2 and flows out from the lower end of the electrode rod 2. At this time, since the inside of the electrolyte chamber 9 is partitioned into a plurality of liquid chambers 93A and 93B for each diameter of the electrode rod 2 by the partition wall 94, the smaller diameter of the two types of electrode rods 2A and 2B having different diameters is used. A sufficient amount of electrolyte flows into the direction. Further, since the flow rate of the electrolytic solution is controlled for each of the liquid chambers 93A and 93B by the liquid flow control unit 13, an appropriate amount of the electrolytic solution corresponding to the diameter of each electrode rod 2A and 2B flows.

  Further, a current is applied to each electrode rod 2 by the energization unit 7, and a DC voltage is applied between the tip of each electrode rod 2 and the moving blade X. That is, an electric current is passed from the energizing portion 7 to the tube portion 40 of the grip portion 4, and this current is transmitted from the tube portion 40 to the tightening portion 41 and from the tightening member 46 of the tightening portion 41 to the electrode rod 2. The As a result, a DC voltage is applied between the tip of the electrode rod 2 and the rotor blade X.

  As described above, the electrolyte solution is supplied between the tips of the plurality of electrode rods 2 and the rotor blades X, and the DC voltage is applied to each of the tip ends of the electrode rods 2 of the rotor blades X. The portions opposed to each other are electrolyzed, a plurality of cooling holes H are simultaneously drilled, and the electrode rods 2 are simultaneously lowered by the lifting mechanism 10 so that the plurality of cooling holes H are simultaneously drilled. At this time, since the traveling direction of each electrode rod 2 is guided by the guide hole 14 of the electrode guide 11, a plurality of cooling holes H are drilled non-linearly along the shape of the rotor blade X. Further, since the flow of the electrolyte is controlled by the liquid flow control unit 13 with constant flow rate control, even if the perforation progresses and the pressure loss in the discharge of the electrolyte increases, the outflow pressure of the electrolyte increases correspondingly. As a result, the flow rate of the electrolyte flowing out from the tip of the electrode rod 2 is maintained constant. Therefore, the electrolyte solution is continuously discharged from the upper end of the drilled hole (cooling hole H). Further, the energization control unit 12 individually controls the energization of the electrode rod 2 for each electrode rod 2. Thereby, the DC voltage applied between the tip of the electrode rod 2 and the rotor blade X is appropriately adjusted for each electrode rod 2 according to each cooling hole H.

  As described above, when the cooling hole H is drilled in the rotor blade X, the rotation mechanism 5 is driven by the drive source 6, and the electrode rod 2 is axially rotated by the rotation mechanism 5. Specifically, the drive source 6 is driven to rotate the drive shaft 60. As a result, the drive gear 50 fixed to the drive shaft 60 rotates, the passive gear 51 meshed with the drive gear 50 rotates, and the plurality of passive gears 51 meshed with each other rotate. As a result, the plurality of gripping portions 4 fixed to the respective passive gears 51 rotate in the respective axes, and the electrode rods 2 gripped in the respective gripping portions 4 rotate in the axial directions. As a result, the above-described drilling process proceeds while the plurality of electrode rods 2 are rotating, and a plurality of cooling holes H are formed in the rotor blade X. Further, the rotation mechanism 5 described above is arranged in a non-linear manner because the plurality of gripping portions 4 can be simultaneously rotated even if the plurality of gripping portions 4 are arranged in a non-linear manner. When drilling the plurality of cooling holes H, it is not necessary to puncture the plurality of cooling holes H, and the plurality of cooling holes H of the rotor blade X are drilled at a time.

  According to the electrolytic processing apparatus 1 having the above-described configuration, even when a plurality of cooling holes H arranged in a non-linear manner are drilled, the tip of the electrolytic rod 2 is rotated while simultaneously rotating the plurality of electrode rods 2. In this case, the rotor blade X can be electrolyzed to perform drilling, the tact time can be shortened, and the occurrence of a positioning error or the like when the relative position of the rotor blade and the processing device is changed can be prevented. Therefore, the position accuracy of the cooling hole H can be improved.

  In addition, the rotation mechanism 5 includes a drive gear 50 fixed to the drive shaft 60 of the drive source 6, a plurality of passive gears 51 fixed to the plurality of gripping portions 4, and a rotational force of the drive gear 50 to a plurality of passive forces. Rotation transmission means (the tooth portions of the drive gear 50 and the passive gear 51) that transmit to the gears 51, respectively, so that even when the plurality of grip portions 4 are arranged in a non-linear manner It is possible to rotate the part 4 at the same time, and simultaneously rotate a plurality of cooling holes H arranged in a non-linear manner while rotating the electrode rod 2. The workability of the H drilling work can be improved and the tact time can be shortened.

  Further, the energization control unit 12 individually controls the energization of the electrode rod 2 for each electrode rod 2, so that the DC voltage applied between the tip of the electrode rod 2 and the moving blade X is changed to each cooling hole. Since each electrode rod 2 is appropriately adjusted according to H, variation in the drilling of the plurality of cooling holes H can be suppressed, and the plurality of cooling holes H can be drilled efficiently and reliably.

Further, the inside of the electrolytic solution chamber 9 is partitioned for each diameter of the electrode rod 2 by the partition wall 94, and the electrolytic solution can sufficiently flow into the small-diameter electrode rod 2, so that the plurality of electrode rods 2 (cooling) Even in the case where the holes H) are not the same diameter, the electrolytic solution can be allowed to flow into each electrode rod 2, and a plurality of electrode rods 2 can be reliably perforated simultaneously.
Moreover, since the flow rate of the electrolytic solution is controlled for each diameter of each electrode rod 2 by the liquid flow control unit 13, an appropriate amount of the electrolytic solution corresponding to the diameter of each electrode rod 2 flows out from the electrode rod 2, Even when the electrode rod 2 (cooling hole H) is not the same diameter, it is possible to prevent the electrolyte from being excessively supplied or insufficiently supplied to any one of the plurality of electrode rods 2. The electrode rods 2 can be simultaneously and efficiently drilled simultaneously.

  Further, since the liquid flow control unit 13 performs constant flow rate control, even if the perforation progresses and the pressure loss in the discharge of the electrolyte increases, the outflow pressure of the electrolyte increases correspondingly, and the electrode rod 2 Since the flow rate of the electrolyte solution flowing out from the tip of the electrode is kept constant, the electrolyte solution is continuously discharged. As a result, even when the perforation depth is increased, sludge is less likely to accumulate at the tip of the electrode rod 2, and the problem that the electrode rod 2 and the rotor blade X are short-circuited can be prevented. Further, it is possible to prevent a decrease in perforation efficiency due to an increase in pressure loss in the discharge of the electrolytic solution, and it is possible to efficiently perforate the cooling holes H.

[Second Embodiment]
Next, a second embodiment will be described based on FIG. The present embodiment is different from the first embodiment in the configuration of the grip portion 104 that grips the electrode rod 2, and the other configurations are the same as those in the first embodiment. It is the same. Therefore, in the present embodiment, only the configuration of the grip portion 104 will be described.

  As shown in FIG. 3, the grip portion 104 includes a first chuck holder 140 (first grip member) attached to the housing 8 and a second chuck holder 141 detachably attached to the first chuck holder. (Second gripping member).

  The first chuck holder 140 is a member that holds the second chuck holder 141 and is engaged with the rotation mechanism 5 shown in FIG. It is supported by the housing 8 through a pair of rotary bearings 82 and 83 so as to be rotatable. More specifically, when the first chuck holder 140 is extended along the vertical direction, a cylindrical portion 142 into which a cylindrical portion 146 of the second chuck holder 141 described later is inserted and a lower end of the cylindrical portion 142 are provided. And a fastening portion 143 that is provided and fastens the lower end portion of the cylindrical portion 146 of the second chuck holder 141 from the outside in the radial direction.

  The upper portion of the cylindrical portion 142 passes through the through hole 84 of the upper wall portion 80 of the housing 8 and is inserted into the communication hole 91 of the lower wall portion 90 of the electrolyte chamber 9. The shaft is supported so as to be rotatable through a rotary bearing 82 fitted inside. An enlarged diameter portion 91a is formed at the lower end portion of the communication hole 91 of the electrolyte chamber 9, and the above-described cylindrical portion 142 is inserted inside the enlarged diameter portion 91a. Further, an O-ring-shaped sealing material 144 fitted inside the upper portion of the above-described through hole 84 is externally mounted on the upper portion of the cylindrical portion 142, and the cylindrical portion 142, the through hole 84, and the like are covered by this sealing material 144. The space between is sealed. The lower portion of the cylindrical portion 142 is inserted into the inside of the through hole 85 of the lower wall portion 81 of the housing 8 and is supported so as to be rotatable about the shaft through a rotary bearing 83 fitted inside the upper end portion of the through hole 85. Has been. Further, an O-ring-shaped sealing material 145 fitted inside the lower portion of the through hole 85 of the lower wall portion 81 described above is externally mounted on the lower portion of the cylindrical portion 142, and the cylindrical portion 142 is covered by the sealing material 145. And the through hole 85 are sealed. Further, the passive gear 51 of the rotation mechanism 5 is externally mounted on the intermediate portion of the cylindrical portion 142, and the sliding contact portion 70 of the energizing portion 7 is slidably contacted with the outer peripheral surface of the intermediate portion of the cylindrical portion 142. ing. The tightening portion 143 is fixed to the lower end of the cylindrical portion 142 protruding from the through hole 85 described above. The tightening portion 143 has a pressing member (not shown) that is movable in the radial direction (for example, a bolt), and the pressing member is brought into close contact with the outer peripheral surface of the cylindrical portion 146 of the second chuck holder 141. The cylindrical portion 146 of the second chuck holder 141 is gripped.

  The second chuck holder 141 is a member that holds the electrode rod 2 and is detachably attached to the first chuck holder 140. More specifically, the second chuck holder 141 has a cylindrical portion 146 into which the electrode rod 2 is inserted when extending in the vertical direction, and a lower end of the cylindrical portion 146. And a tightening portion 147 for tightening from the outside in the direction. The cylindrical portion 146 is inserted inside the first chuck holder 140 described above. The upper end of the cylindrical portion 146 protrudes from the upper end of the cylindrical portion 142 of the first chuck holder 140 and is inserted into the communication hole 91 of the electrolyte chamber 9. The lower end of the tube portion 146 protrudes downward from the inside of the tightening portion 143 of the first chuck holder 140 described above, and the tightening portion 147 is fixed to the lower end of the tube portion 146. The tightening portion 147 has the same configuration as the tightening portion 41 in the first embodiment described above.

  In the electrolytic processing apparatus having the grip portion 104 having the above-described configuration, when mounting the electrode rod 2, first, the second chuck holder 141 is removed from the first chuck holder 140. More specifically, the pressing member of the tightening portion 143 of the first chuck holder 140 is moved radially outward to release the grip of the second chuck holder 141 by the first chuck holder 140, and then the first chuck holder The second chuck holder 141 is pulled out from inside 140.

  Next, the electrode rod 2 is gripped by the removed second chuck holder 141. More specifically, after the electrode rod 2 is inserted inside the cylindrical portion 146 and the tightening portion 147 of the second chuck holder 141, the tightening portion 147 is tightened to hold the electrode rod 2.

  Next, the second chuck holder 141 is held and the second chuck holder 141 is mounted on the first chuck holder 140. More specifically, the cylindrical portion 146 of the second chuck holder 141 is inserted into the tightening portion 143 and the cylindrical portion 142 of the first chuck holder 140 from the lower end side of the first chuck holder 140. Then, the pressing member of the tightening portion 143 of the first chuck holder 140 is moved radially inward, and the tube portion 146 of the second chuck holder 141 is tightened and held by the tightening portion 143. Thereby, the second chuck holder 141 is fixed to the first chuck holder 140. At this time, the mounting operation is often performed in an unnatural posture due to the device connection, but the electrode rod 2 is not easily bent because the electrode rod 2 is not in direct contact.

  According to the electrolytic processing apparatus having the grip portion 104 described above, the electrode rod 2 is hardly bent due to the mounting of the electrode rod 2, so that excessive sliding resistance is unlikely to occur, and an increase in load on the entire mechanism can be suppressed. It is possible to prevent a decrease in durability.

  Note that the above-described gripping portion 104 has a configuration in which the second chuck holder 141 (second gripping member) is inserted inside the first chuck holder 140 (first gripping member). The positional relationship between the one gripping member and the second gripping member can be changed as appropriate, and for example, a configuration in which the first gripping member and the second gripping member are detachably connected to each other may be employed.

[Third Embodiment]
Next, a third embodiment will be described with reference to FIGS. In the present embodiment, as compared with the first embodiment, the shaft rotational force is synchronized with each other with respect to the plurality of gripping portions 4 even when the plurality of gripping portions 4 are arranged non-linearly. The configuration of the rotation mechanism 205 that can be applied is different, and the other configuration is the same as that of the first embodiment. Therefore, in the present embodiment, only the configuration of the rotation mechanism 205 will be described.

  As shown in FIG. 4, the rotation mechanism 205 includes a drive-side rotating body (ball screw 250) fixed to a drive shaft 60 of the drive source 6, which will be described later, and a plurality of gripping part sides fixed to the plurality of gripping parts 4. A rotation body (cylinder body 251), rotation transmission means (lifting bar 252 and key 253 and key groove 254 shown in FIG. 6) for transmitting the rotational force of the driving side rotation body to the plurality of gripper side rotation bodies, respectively; It has. Specifically, as shown in FIGS. 4 and 5, the rotation mechanism 205 includes a ball screw 250 fixed to the drive shaft 60, a lifting bar 252 that moves up and down in accordance with the shaft rotation of the ball screw 250, and the grip portion 4. And a cylindrical body 251 that is externally mounted.

  The ball screw 250 is a screw member that rotates along with the rotation of the drive shaft 60. More specifically, the ball screw 250 is connected to the lower end of the drive shaft 60 of the drive source 6, extends on the axis extension line of the drive shaft 60, and is disposed inside the housing 8.

  The elevating bar 252 is an elevating body that can be moved up and down disposed inside the housing 8, and extends along the horizontal direction through the sides of the plurality of grip portions 4. One end portion (end portion on the drive source 6 side) of the elevating bar 252 is provided with a female screw portion 255 that is screwed to the ball screw 250, and the ball screw 250 is inserted inside the female screw portion 255. Has been screwed. Further, a through-hole-shaped guide bearing 256 extending in the vertical direction is formed at the other end portion of the elevating bar 252. Inside this guide bearing 256 is inserted a rod-like guide 86 standing on the upper surface of the lower wall portion 81 of the housing 8, and the elevating bar 252 is guided by the guide 86 and elevates along the vertical direction. To do.

  A plurality of pin-like keys 253 projecting toward the plurality of grip portions 4 are attached to the side surface of the lift bar 252 on the grip portion 4 side. The plurality of keys 253 are arranged at a predetermined interval, and are respectively disposed at positions facing the plurality of grip portions 4. Further, the lengths of the plurality of keys 253 are different depending on the distance between the side surface of the lifting bar 252 and the outer peripheral surface of the cylinder 251 described later, and the tip of each key 253 has a tip of the cylinder 251 described later. It is inserted into the keyway 254.

  As shown in FIG. 6, the cylindrical body 251 is a cylindrical cylindrical body that is provided around the outer periphery of the grip portion 4, and is fixed to the grip portion 4. A key groove 254 into which the key 253 described above is inserted is formed on the outer peripheral surface of the cylindrical body 251. The key groove 254 is a spiral groove extending spirally around the central axis of the cylindrical body 251 (gripping part 4).

  In the electrolytic processing apparatus 1 including the rotating mechanism 205 having the above-described configuration, when the cooling hole H is drilled in the rotor blade X as described above, the rotating mechanism 205 is driven by the driving source 6, and the electrode rod 2 is driven by the rotating mechanism 205. Rotate the shaft. Specifically, the drive source 6 is driven to rotate the drive shaft 60. As a result, the ball screw 250 fixed to the drive shaft 60 rotates, and the lifting bar 252 having the female screw portion 255 screwed to the ball screw 250 moves up and down along the guide 86. Then, as the elevating bar 252 is moved up and down, the plurality of cylinders 251 are axially rotated by the keys 253 of the elevating bar 252 and the key grooves 254 of the cylinders 251, and a plurality of gripping portions fixed to these cylinders 251. 4 and the plurality of electrode rods 2 respectively held by the holding portions 4 rotate in the respective axes. As a result, the above-described drilling process proceeds while the plurality of electrode rods 2 are rotating, and a plurality of cooling holes H are formed in the rotor blade X. The rotating mechanism 205 described above can simultaneously rotate the plurality of gripping portions 4 by adjusting the length of the key 253 even when the plurality of gripping portions 4 are arranged in a non-linear manner. Therefore, when drilling a plurality of cooling holes H arranged in a non-linear manner, it is not necessary to pierce the cooling holes in a plurality of times, and a plurality of cooling holes H of the rotor blade X are drilled at a time.

[Fourth Embodiment]
Next, a fourth embodiment will be described with reference to FIGS. In the present embodiment, as compared with the first embodiment, the shaft rotational force is synchronized with each other with respect to the plurality of gripping portions 4 even when the plurality of gripping portions 4 are arranged non-linearly. The configuration of the rotation mechanism 305 that can be applied is different, and the other configuration is the same as that of the first embodiment. Therefore, in the present embodiment, only the configuration of the rotation mechanism 305 will be described.

  As shown in FIG. 7, the rotation mechanism 305 includes a drive-side rotating body (drive gear 350) fixed to a drive shaft 60 of the drive source 6, which will be described later, and a plurality of gripping units fixed to the plurality of gripping units 4. A side rotator (passive gear 351) and rotation transmission means (drive belt 352) for transmitting the rotational force of the drive side rotator to the plurality of gripper side rotators are provided. The drive gear 350 is a gear attached to the drive shaft 60 of the drive source 6. It is pivotally supported on the drive shaft 60. The passive gear 351 is a gear mounted on the outer periphery of the grip portion 4, and the plurality of passive gears 351 are arranged with the adjacent passive gears 351 spaced apart from each other, as shown in FIG. . As shown in FIG. 8A, the drive belt 352 is an endless (annular) belt wound around a plurality of gears 350 and 351, and has a configuration capable of meshing with each of the gears 350 and 351. More specifically, the drive belt 352 is wound in a waveform so as to intersect in plan view between adjacent gears (between the drive gear 350 and the passive gear 351 or between the adjacent passive gears 351 and 351). Yes. As shown in FIG. 8B, the drive belt 352 can be wound around a plurality of gears 350 and 351 without intersecting. In this case, an idler 353 is brought into sliding contact with the outer peripheral surface of the drive belt 352 to apply tension to the drive belt 352. Further, as shown in FIG. 9A, the drive belt 352 has a configuration in which a spiral strip 352b is wound around the outer periphery of a wire (core material) 352a, and the drive gear 350 and a plurality of passive gears 351 are attached to the drive belt 352. Each is meshed. As shown in FIG. 9B, the drive belt 352 may be a flexibly deformable flex rack made of, for example, rubber.

  In the electrolytic processing apparatus 1 including the rotating mechanism 305 having the above-described configuration, when the cooling hole H is drilled in the rotor blade X as described above, the rotating mechanism 305 is driven by the driving source 6, and the electrode rod 2 is driven by the rotating mechanism 305. Rotate the shaft. Specifically, the drive source 6 is driven to rotate the drive shaft 60. As a result, the drive gear 350 fixed to the drive shaft 60 rotates, and the drive belt 352 meshed with the drive gear 350 moves forward. Then, when the drive belt 352 moves forward, the plurality of passive gears 351 meshed with the drive belt 352 rotate, respectively, and the plurality of grip portions 4 fixed to these passive gears 351 and the grip portions 4 thereof. The plurality of electrode rods 2 respectively held by the shafts respectively rotate on the axis. As a result, the above-described drilling process proceeds while the plurality of electrode rods 2 are rotating, and a plurality of cooling holes H are formed in the rotor blade X. In addition, the rotating mechanism 305 described above can simultaneously rotate the plurality of gripping portions 4 by rotating the drive belt 352 even when the plurality of gripping portions 4 are arranged in a non-linear manner. Therefore, when the plurality of cooling holes H arranged in a non-linear manner are drilled, it is not necessary to pierce the cooling holes H a plurality of times, and the plurality of cooling holes H of the rotor blade X are drilled at a time.

As mentioned above, although the embodiment of the electrolytic processing apparatus according to the present invention has been described, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof.
For example, in the first embodiment described above, two motors are mounted as the drive source 6. However, in the present invention, the drive source 6 may be an actuator other than the motor. The number can be changed as appropriate.

  In the embodiment described above, the casing 8, the plurality of gripping units 4, the rotation mechanism 5, the energization unit 7, the drive source 6, and the electrolyte chamber 9 are provided with the lifting mechanism 10. The present invention only needs to be configured so that the electrode rod 2 and the moving blade X can be moved relative to each other, and the grip portion 4 and the workpiece fixing jig 3 can be moved relative to each other in the vertical direction. That's fine. Therefore, an elevating mechanism for moving the workpiece fixing jig 3 in the vertical direction with the gripping portion 4 fixed may be provided, or an elevating mechanism for moving the gripping portion 4 and the workpiece fixing jig 3 up and down respectively. It may be done.

  Further, in the above-described embodiment, the rotation mechanisms 5, 205, and 305 including the driving side rotating body, the gripper side rotating body, and the rotation transmitting unit are provided. It is also possible to adopt a configuration provided with a mechanism. For example, a drive source (such as a motor) that rotates the gripping part 4 may be provided for each gripping part 4.

  In the above-described embodiment, the flow rate of the electrolytic solution is controlled by the constant flow rate control. However, the present invention can also perform other controls, for example, the flow rate of the electrolytic solution can be varied. It is also possible to control the electrolytic solution by constant pressure control.

  In the above-described embodiment, the inside of the electrolyte chamber 9 is partitioned into a plurality of liquid chambers 93A, 93B, and 93C for each diameter of the electrode rod 2, and each liquid chamber 93A, Although the flow of the electrolytic solution is controlled for each of 93B and 93C, in the present invention, the inside of the electrolytic solution chamber 9 may be partitioned into a plurality of liquid chambers for each electrode rod 2. The flow control unit 13 may control the flow of the electrolytic solution for each liquid chamber, that is, for each electrode rod 2. Furthermore, the present invention can be configured such that the inside of the electrolyte chamber 9 is not partitioned, and the same control can be performed on all the electrolytic rods 2 with respect to the flow of the electrolyte.

  Further, in the above-described embodiment, the energization unit 7 is provided for each electrode rod 2, and the energization unit 7 is controlled for each electrode rod 2 by the energization control unit 12. May be provided with an energization section for energizing the plurality of electrode rods 2 collectively, or energization of all the electrode rods 2 may be performed by the same control.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

DESCRIPTION OF SYMBOLS 1 Electrolytic processing apparatus 2 Electrode rod 4 Grasp part 5 Rotation mechanism 6 Drive source 7 Current supply part 9 Electrolyte chamber 11 Electrode guide 11 Current supply control part 13 Liquid flow control part 50 Drive gear (drive side rotary body)
51 Passive gear (grip part side rotating body)
93 (93A, 93B, 93C) Liquid chamber 104 Holding part 140 First chuck holder (first holding member)
141 Second chuck holder (second gripping member)
205 Rotating mechanism 250 Ball screw (drive-side rotating body)
251 Tubular body (gripping part side rotating body)
252 Lift bar (rotation transmission means)
253 key (rotation transmission means)
254 Keyway (Rotation transmission means)
305 Rotation mechanism 350 Drive gear (drive-side rotator)
351 Passive gear (gripping part side rotating body)
352 Drive belt (rotation transmission means)
X Rotor blade (workpiece)

Claims (6)

Electrolysis for perforating the workpiece by flowing an electrolyte from the tip of a tubular electrode rod facing the workpiece and applying a DC voltage between the tip of the electrode rod and the workpiece. In processing equipment,
A plurality of gripping portions each gripping the plurality of electrode rods;
A rotation mechanism capable of applying an axial rotational force to the plurality of gripping portions in synchronization with each other even when the plurality of gripping portions are arranged in a non-linear manner;
A drive source for driving the rotation mechanism;
Equipped with a,
On the opposite side to the workpiece side of the rotating mechanism, an electrolytic solution chamber is provided that stores the electrolytic solution therein and communicates with the base ends of the plurality of electrode rods,
The inside of the electrolyte chamber is partitioned into a plurality of liquid chambers for each electrode rod diameter or each electrode rod,
An electrolytic processing apparatus comprising a liquid flow control unit for controlling the flow of the electrolytic solution for each liquid chamber . The electrolytic processing apparatus according to claim 1,
An electrolytic processing apparatus comprising an electrode guide for guiding the electrode rod that moves relative to the workpiece. In the electrolytic processing apparatus according to claim 1 or 2,
An electrolytic processing apparatus comprising: an energization unit that energizes each of the plurality of electrode rods; and an energization control unit that controls the energization of each electrode rod. In the electrolytic processing apparatus according to any one of claims 1 to 3 ,
The electrolytic processing apparatus, wherein the liquid flow control unit controls the flow rate of the electrolytic solution by constant flow control that maintains a constant flow rate of the electrolytic solution flowing out from the tip of the electrode rod. In the electrolytic processing apparatus according to any one of claims 1 to 4 ,
In the grip part,
A first gripping member which is engaged with the rotation mechanism and transmits the axial rotation force of the rotation mechanism;
A second gripping member that is detachably attached to the first gripping member and grips the electrode rod;
An electro-chemical machining apparatus comprising: In the electrolytic processing apparatus according to any one of claims 1 to 5 ,
The rotation mechanism includes a drive-side rotator fixed to a drive shaft of the drive source, a plurality of gripper-side rotators fixed to the plurality of grippers, and a plurality of rotational forces of the drive-side rotator. An electro-chemical machining apparatus, comprising: a rotation transmission unit configured to transmit to each of the gripper-side rotating bodies.

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